# Union Square Dermatology, San Francisco: a dermatologist in San Francisco (2026 guide) Source: Local AI Registry, https://localairegistry.com/biz/ca/san-francisco/union-square-dermatology-san-francisco-ca. Free to reuse with a link back. By Steve Lee, founder and CEO of Local AI Registry. Fact-checked against 1 source. Updated 2026-10-19. Owner review: not yet. Canonical: https://localairegistry.com/biz/ca/san-francisco/union-square-dermatology-san-francisco-ca ## In short After 10 years as a partner in an SF dermatology practice, Dr. Reese established Union Square Dermatology as a setting for service oriented skin care. Dr. Hall moved from Florida a year later, bringing Mohs surgical skills to the cosmetic and medical menu. Dr. Anne Zhuang joined in 2017, with additional medical, surgical and cosmetic expertise. In late 2020, Dr. Hall returned to Florida to practice closer to family. In 2021, Nicole Spooner Dermatology FNP-C joined the team. Patients may elect to work with one or more of the providers, all being available to provide outstanding personalized care. Every fact on this page carries one of three marks: Confirmed (from their website, Google Business Profile, review sites, licensing boards, or measured by Local AI Registry), Visitor submitted (added by a person, with a date and how they know), or AI guess (what AI engines like Gemini and ChatGPT are saying, not confirmed by anyone). Every mark points to a reference at the end of this page. ## Key facts | Fact | Value | | --- | --- | | Type | Dermatologist | | Address | 450 Sutter St RM 830, San Francisco, CA 94108, USA | | Hours | Mon to Fri 9 AM to 5 PM · Closed Sat to Sun | | Phone | (415) 393-9550 | | Medical director | Nothing found | | Rating | 3.9 across 49 reviews on Google | | Known for | Nothing found | | Prices | Nothing found | | Quietest time | Nothing found | | Parking | Nothing found | | Last verified | October 18, 2026, 6:31 PM | ## All the details Every row is something the owner can add or correct. Each one is marked Confirmed, Visitor submitted or AI guess, with where it came from. | Group | Fact | Value | Mark | Evidence | | --- | --- | --- | --- | --- | | Location info | Address | 450 Sutter St RM 830, San Francisco, CA 94108, USA | Confirmed | Google Business Profile, checked Oct 18, 2026 | | Location info | Description | After 10 years as a partner in an SF dermatology practice, Dr. Reese established Union Square Dermatology as a setting for service oriented skin care. Dr. Hall moved from Florida a year later, bringing Mohs surgical skills to the cosmetic and medical menu. Dr. Anne Zhuang joined in 2017, with additional medical, surgical and cosmetic expertise. In late 2020, Dr. Hall returned to Florida to practice closer to family. In 2021, Nicole Spooner Dermatology FNP-C joined the team. Patients may elect to work with one or more of the providers, all being available to provide outstanding personalized care. | Confirmed | Google Business Profile, checked Oct 18, 2026 | | Location info | Hours | Mon to Fri 9:00 AM to 5:00 PM · Sat to Sun Closed | Confirmed | Google Business Profile, checked Oct 18, 2026 | | Location info | Name | Union Square Dermatology | Confirmed | Google Business Profile, checked Oct 18, 2026 | | Location info | Phone | (415) 393-9550 | Confirmed | Google Business Profile, checked Oct 18, 2026 | | Hours | Monday | 9:00 AM to 5:00 PM | Confirmed | Google Business Profile, checked Oct 18, 2026 | | Hours | Tuesday | 9:00 AM to 5:00 PM | Confirmed | Google Business Profile, checked Oct 18, 2026 | | Hours | Wednesday | 9:00 AM to 5:00 PM | Confirmed | Google Business Profile, checked Oct 18, 2026 | | Hours | Thursday | 9:00 AM to 5:00 PM | Confirmed | Google Business Profile, checked Oct 18, 2026 | | Hours | Friday | 9:00 AM to 5:00 PM | Confirmed | Google Business Profile, checked Oct 18, 2026 | | Hours | Saturday | Closed | Confirmed | Google Business Profile, checked Oct 18, 2026 | | Hours | Sunday | Closed | Confirmed | Google Business Profile, checked Oct 18, 2026 | | Links | Website | http://www.unionsquarederm.com/ | Confirmed | Google Business Profile, checked Oct 18, 2026 | ## Services and prices Services not read yet, back on Scan Day. ### Known for Nothing found ## The team Nothing found ## Visiting Union Square Address: 450 Sutter St RM 830, San Francisco, CA 94108, USA. Phone: (415) 393-9550. Hours: Mon to Fri 9 AM to 5 PM · Closed Sat to Sun. (Confirmed, Google Business Profile, checked October 18, 2026 at 6:31 PM.) ### Location info from Google Business Profile Business description, written by Union Square on its Google Business Profile: "After 10 years as a partner in an SF dermatology practice, Dr. Reese established Union Square Dermatology as a setting for service oriented skin care. Dr. Hall moved from Florida a year later, bringing Mohs surgical skills to the cosmetic and medical menu. Dr. Anne Zhuang joined in 2017, with additional medical, surgical and cosmetic expertise. In late 2020, Dr. Hall returned to Florida to practice closer to family. In 2021, Nicole Spooner Dermatology FNP-C joined the team. Patients may elect to work with one or more of the providers, all being available to provide outstanding personalized care." ### When to go Busy times not read yet, back on Scan Day. ### Parking and getting in Nothing found ### Nearby Nearby places not read yet, back on Scan Day. ## Reputation 3.9 average across 49 reviews: Google 25. (Confirmed, read October 18, 2026.) While some practitioners deliver excellent care, administrative inefficiencies and inconsistent patient experiences can overshadow the quality of dermatological services. (AI guess, from 49 reviews.) ### What people like - Effective treatment for eczema - Natural results from Botox - Thorough skin checks - Proactive approach to skin issues - Quick appointment scheduling ### What people do not like - Long waits past the appointment time - Unresponsive front desk - Rushed appointments - Confusing billing practices - Cancellation fees for late arrivals ### Press No press story about Union Square found yet. ### Awards None named yet. ### Directories Directory listings not read yet. ## Recent updates from Union Square Union Square hasn't posted an update here yet. ## Questions people ask ### is Schweiger Dermatology any better No answer yet ### how far out is Union Square booking right now? No answer yet ### reviews all look glowing, what are the real complaints? No answer yet ### regulars here, who do you book with? No answer yet ### Busiest day at Union Square, anyone know? No answer yet ### Street parking near here, any good? No answer yet ### Open Saturdays here? No answer yet ### walk ins, or is it booked solid No answer yet ### what do people actually pay at dermatologists around San Francisco No answer yet ### the good stuff about this place, what is it? No answer yet ### going here on Saturday, what should I expect No answer yet ### can I ask for numbing at Union Square without it being weird? No answer yet ### somewhere cheaper in San Francisco that is not a risk? No answer yet ### anything new from Union Square in San Francisco lately? No answer yet ### best dermatologist in San Francisco, CA No answer yet ### Coffee near Union Square on Sutter? No answer yet ### do they do payment plans here? No answer yet ### medical staff at Union Square, or is it techs? No answer yet ## What AI gets wrong about Union Square We ask Gemini and ChatGPT about Union Square. These are the answers that disagree with the record. ChatGPT and Gemini, read by Local AI Registry on Oct 18, 2026. No capture has disagreed with the record yet. ## The AI Score: 31 of 100 The AI Score measures how likely AI engines are to recommend a business, and how accurately. San Francisco dermatologists run 24 to 63. Fair starts at 45, good at 65. Union Square scores 31, below the San Francisco average of 35. The same method scores every business on the registry. | Signal | Weight | Score | What it measures | Union Square | | --- | --- | --- | --- | --- | | Retrieval grounding | 26 | 0 | Whether you appear in the ranked results AI retrieves and cites: AI-Overview citations, organic top-10 for your money queries, and the Bing index ChatGPT leans on. | Poor | | Off-property attestation | 20 | 97 | Volume and consistency of what others say about you: YouTube mentions, branded web mentions, third-party “best-of” lists. The cause of retrievability. | Good | | AI visibility | 14 | 0 | Whether ChatGPT, Gemini, Perplexity, and AI Overviews name you, and whether they name you for the right service. | Named in 0 of 1 answer that recommended anyone. 1 more named nobody, which is not a loss and is not scored. | | Reviews & response | 12 | 72 | The star average is only one input. We also read volume, velocity, the specificity of review language, and response cadence. Specific reviews are what AI quotes verbatim. | Good | | Backlink & citation authority | 8 | 57 | Domain authority and editorial quality of the sources that attest to you. | Fair | | Google Business Profile | 8 | 79 | Required and recommended fields; update cadence. The listing AI pulls from first. | Good | | Speed & mobile | 7 | 58 | Core Web Vitals at the 75th percentile, on a real phone. | Fair | | Content freshness & schema | 5 | 61 | Crawl recency, intent alignment, valid JSON-LD, canonicals. | Fair | Full method: https://localairegistry.com/methodology ## How AI decides what to tell you about a dermatologist When you ask ChatGPT, Gemini or Google for a med spa, the AI does not visit each business. It reads what is already written about it: the business website, its Google Business Profile, review sites like Yelp and RealSelf, news stories, licensing boards and directories like this one. Then it repeats what those sources agree on. That is why AI gets small facts wrong. If Yelp says a place is open Mondays and the website says it is not, the AI has to pick one. The table above shows the answers that disagree with the record today. The more sources agree, and the more specific they are, the more confidently AI recommends a business. A review that says "the nurse did half a syringe in my lips and it looks natural" is far more useful to an AI than one that says "great place." ## How to choose a dermatologist in California, with or without AI A few checks take ten minutes and matter more than any rating. This is general information, not medical advice. - Look up every injector. Doctors are listed by the California medical board, and nurses and nurse practitioners by its nursing board. Both lookups are free. - Ask who does the injections, and check that person's license. - Ask for the price per unit of Botox and per syringe of filler, not per area. - Read reviews that name a provider and a treatment. Vague praise is easy to fake. - Check that the hours and phone number match on Google, Yelp and the website. Mismatches are how people end up at a locked door. - Ask whether they dissolve filler and when they would tell you not to add more. ## How to read the marks on this page - Confirmed (solid circle): from a known source. The business website, its Google Business Profile, review sites like Yelp, Healthgrades and RealSelf, a licensing board, or measured by Local AI Registry. - Visitor submitted (hollow circle): added or corrected by a person, with the date and how they know, like a phone call or a visit. - AI guess (hollow triangle): what AI engines are saying right now. Nobody has confirmed it. ## About the author Steve Lee is the founder and CEO of Local AI Registry and sets its editorial standards. He is a former Google executive in Search and a former Microsoft executive, with more than 20 years in digital: search, local discovery, and how people find businesses online. He is based in Irvine. - Expertise: search at Google and Microsoft, AI search, answer engine optimization, generative engine optimization, local SEO, structured data and entity mapping. - Industry: medical aesthetics, injectables, med spa operations and marketing. - Disclosure: Local AI Registry sells services to business owners, including Union Square if it claims this page. That does not change what this page says. Every fact carries its source. ## Entity map Every person, place, organization and treatment named on this page, with a stable ID and a public reference. The JSON-LD below connects them to each other. | Entity | Type | ID on this page | Same as | Relationship to Union Square | | --- | --- | --- | --- | --- | | Union Square Dermatology | MedicalBusiness | #business | http://www.unionsquarederm.com/ | Subject of this page | | San Francisco, California | City | #city | Nothing found | City Union Square is in | | Local AI Registry | Organization | #publisher | https://localairegistry.com | Publisher of this page | | Steve Lee | Person | #author | https://localairegistry.com/team | Author of this page | ## Topical map Where this page sits in the registry. It's one profile among the dermatologists in San Francisco, linked to the lists and towns around it. ### Lists - Best dermatologists in San Francisco: https://localairegistry.com/leaderboards/ca/san-francisco/dermatologist - Best businesses in San Francisco: https://localairegistry.com/leaderboards/ca/san-francisco ### Nearby - /los-angeles: https://localairegistry.com/leaderboards/ca/los-angeles - /san-jose: https://localairegistry.com/leaderboards/ca/san-jose - /san-diego: https://localairegistry.com/leaderboards/ca/san-diego - /irvine: https://localairegistry.com/leaderboards/ca/irvine - /fresno: https://localairegistry.com/leaderboards/ca/fresno - /palo-alto: https://localairegistry.com/leaderboards/ca/palo-alto ### Every list - Every leaderboard in California: https://localairegistry.com/leaderboards/ca ## Frequently asked questions ### What is AI search optimization for local business? Getting a business named when a neighbor asks ChatGPT, Gemini, or Perplexity for a recommendation. Some call it AI SEO, some call it generative engine optimization. Traditional SEO fights for ten blue links; this fights for the one answer an assistant says out loud. The AI Score on this page measures the eight signals that drive it. ### What is Local AI Registry? The public record of how AI sees local business. We score every business we list by one published method, we keep the questions people ask about it in one place, and we never sell rank. Looking up any business here is free. ### How does this page help a business get recommended by AI? Assistants read public pages before they answer. This one states what the business does, what people ask about it, and what the Record answers, in one place a machine can read. Correcting what is wrong here changes what an assistant repeats next. ### Who writes the answers here? Registry AI writes the first answer under every question, from the Record and the public sources named beneath it. Neighbors write the rest under pseudonyms. A registered owner can reply as the business, and their reply says so. ### I own Union Square Dermatology. How do I fix something or rank higher? Register the page. It is free, it takes about five minutes, and it lets you correct the Record and reply as the business. Nothing on this page is for sale, so the only thing that moves the score is the work. ## References ### Sources cited - [1] Google Business Profile, https://www.google.com/maps/place/?q=place_id:ChIJqRhcpY6AhYARo9zVEfi9bGg (accessed Oct 18, 2026)