# MarinHealth Medical Center Emergency Room, Greenbrae CA: Reviews Source: Local AI Registry, https://localairegistry.com/biz/ca/greenbrae/marinhealth-medical-center-emergency-room-greenbrae-ca. Free to reuse with a link back. By Steve Lee, founder and CEO of Local AI Registry. Updated 2026-10-18. Canonical: https://localairegistry.com/biz/ca/greenbrae/marinhealth-medical-center-emergency-room-greenbrae-ca ## Photos - ![Photo 1](https://localairegistry.com/api/photo?src=https%3A%2F%2Fseoaesthetic-assets.sfo3.cdn.digitaloceanspaces.com%2Fphotos%2Fcmveksflj0235yeq41wxntohy%2F0.jpg) - ![Photo 2](https://localairegistry.com/api/photo?src=https%3A%2F%2Fseoaesthetic-assets.sfo3.cdn.digitaloceanspaces.com%2Fphotos%2Fcmveksflj0235yeq41wxntohy%2F1.jpg) ## In short MarinHealth Medical Center Emergency Room is a medical center in Greenbrae, CA. Its AI Score is 60 of 100, which is fair. What each mark on this page means: https://localairegistry.com/methodology#marks ## Key facts | Fact | Value | | --- | --- | | Type | Medical center | | Address | 250 Bon Air Rd, Greenbrae, CA 94904, USA | | Hours | Mon to Sun Open 24 hours | | Phone | (415) 925-7000 | | Rating | 2.4 across 37 reviews on Google | | Updated | October 18, 2026 | ## 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 | 250 Bon Air Rd, Greenbrae, CA 94904, USA | Confirmed | Google Business Profile | | Location info | Description | 250 Bon Air Rd, Greenbrae, CA 94904 | Confirmed | Google Business Profile | | Location info | Hours | Mon to Sun Open 24 hours | Confirmed | Google Business Profile | | Location info | Mondays | Open 24 hours | Confirmed | Google Business Profile | | Location info | Name | MarinHealth Medical Center Emergency Room | Confirmed | Google Business Profile | | Location info | Phone | (415) 925-7000 | Confirmed | Google Business Profile | | Hours | Monday | Open 24 hours | Confirmed | Google Business Profile | | Hours | Tuesday | Open 24 hours | Confirmed | Google Business Profile | | Hours | Wednesday | Open 24 hours | Confirmed | Google Business Profile | | Hours | Thursday | Open 24 hours | Confirmed | Google Business Profile | | Hours | Friday | Open 24 hours | Confirmed | Google Business Profile | | Hours | Saturday | Open 24 hours | Confirmed | Google Business Profile | | Hours | Sunday | Open 24 hours | Confirmed | Google Business Profile | | Services | Service | Emergency medical care | AI guess | | | Links | Website | https://www.mymarinhealth.org/ | Confirmed | Google Business Profile | ## Services and prices Add your services so AI can say what you offer ### Known for Share your review link so AI can say what you're known for ## The team Add your team so AI can name who works here ## Visiting MarinHealth Medical Address: 250 Bon Air Rd, Greenbrae, CA 94904, USA. Phone: (415) 925-7000. Hours: Mon to Sun Open 24 hours. (Confirmed, Google Business Profile.) ### Parking and getting in Add your parking so AI can tell people where to park Add how to find your door so AI can walk people in ### Nearby | Place | Type | Distance | | --- | --- | --- | | MGH parking | Parking lot | 1 min walk | | Marin Health Medical Center-250 Bon Air Rd | Bus stop | 2 min walk | | Bon Air Rd & MHMC Emergency Entrance Rd | Bus stop | 3 min walk | | Bon Air Rd & Schultz Memorial Dr | Bus stop | 3 min walk | | Hal Brown Park at Creekside | Park | 3 min walk | | 1220 S Eliseo Dr | Bus stop | 5 min walk | ## Reputation 2.4 average across 37 reviews: Google 37. (Confirmed, read October 18, 2026.) The emergency room is criticized for long wait times and a lack of attentive care, overshadowing some positive interactions with staff. (AI guess, from 37 reviews.) ### What people like - Quick diagnosis for kidney stones - Efficient check-in process - Compassionate care from some nurses ### What people do not like - Long wait times before being seen - Staff perceived as rude or unprofessional - Inadequate communication about care ### Press Add a press story so AI can say who's written about you ### Awards Add an award so AI can name it ### Directories Get listed in directories so AI can tell you're real ## Questions people ask ### anything new from MarinHealth Medical lately? ### stopping by on a Sunday, will they be open ### membership, worth it or not ### regulars here, who do you book with? ### Calling this place, or is there a better way? ### never been to MarinHealth Medical in Greenbrae, how does it go? ### how rough is the follow up at MarinHealth Medical? ### Turning up here for the first time, what happens? ### opening hours at MarinHealth Medical, what are they these days? ### anyone had trouble parking round here? ### On a budget in Greenbrae, is MarinHealth Medical the one? ### booking ahead here, how far do people go? ### booked my first appointment here, how does it go ### which one, MarinHealth Medical or MarinHealth Medical? ### Downsides nobody puts in a five star review? ### worth it or not, what do the regulars say ### MarinHealth Medical, any chance to book in this week? ### best medical center in Greenbrae, CA ### prices round here, anyone got a number ### is there a day here that is not slammed ## The AI Score: 60 of 100 It measures how likely AI engines are to recommend a business, and how accurately. Greenbrae medical centers run 44 to 61. Fair starts at 45, good at 65. MarinHealth Medical scores 60. The same method scores every business on the registry. | Signal | Weight | Score | What it measures | MarinHealth Medical | | --- | --- | --- | --- | --- | | Retrieval grounding | 26 | 75 | 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. | Good | | Off-property attestation | 20 | 41 | Volume and consistency of what others say about you: YouTube mentions, branded web mentions, third-party “best-of” lists. The cause of retrievability. | Poor | | AI visibility | 14 | | Whether ChatGPT, Gemini, Perplexity, and AI Overviews name you, and whether they name you for the right service. | | | Reviews & response | 12 | 59 | 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. | Fair | | Backlink & citation authority | 8 | 63 | 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 | 48 | Core Web Vitals at the 75th percentile, on a real phone. | Fair | | Content freshness & schema | 5 | 73 | Crawl recency, intent alignment, valid JSON-LD, canonicals. | Good | Full method: https://localairegistry.com/methodology How AI decides what to say about a medical center: https://localairegistry.com/methodology#how-ai-decides-med-spa. What to check before you choose one: https://localairegistry.com/methodology#how-to-choose-med-spa ## 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 MarinHealth Medical | | --- | --- | --- | --- | --- | | MarinHealth Medical Center Emergency Room | MedicalBusiness | #business | https://www.mymarinhealth.org/ | Subject of this page | | Greenbrae, California | City | #city | | City MarinHealth Medical is in | | Local AI Registry | Organization | #publisher | https://localairegistry.com | Publisher of this page | | Steve Lee | Person | #author | https://localairegistry.com/team/steve-lee | Author of this page | ## Topical map Where this page sits in the registry. It's one profile among the medical centers in Greenbrae, linked to the lists and towns around it. ### Lists - Best medical centers in Greenbrae: https://localairegistry.com/leaderboards/ca/greenbrae/medical-center - Best businesses in Greenbrae: https://localairegistry.com/leaderboards/ca/greenbrae ### Nearby - /san-jose: https://localairegistry.com/leaderboards/ca/san-jose - /los-angeles: https://localairegistry.com/leaderboards/ca/los-angeles - /san-francisco: https://localairegistry.com/leaderboards/ca/san-francisco - /san-diego: https://localairegistry.com/leaderboards/ca/san-diego - /irvine: https://localairegistry.com/leaderboards/ca/irvine - /mountain-view: https://localairegistry.com/leaderboards/ca/mountain-view ### Every list - Every leaderboard in California: https://localairegistry.com/leaderboards/ca ## References ### Sources cited - [1] Google Business Profile, https://www.google.com/maps/place/?q=place_id:ChIJeeLHjQqahYAR3SWFGTbZwdI (accessed Oct 18, 2026) - [2] AI engine output: ChatGPT and Gemini, read by Local AI Registry on Oct 18, 2026, https://localairegistry.com/methodology (accessed Oct 26, 2026)