Local AI Registry

Family Practice Physician

OC Medical Center/ A. Thomas Parsa M.D. INC.

The public record of what AI assistants say about this business — the questions asked, the answers given, the omissions.

2864 E Imperial Hwy

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22/100
Poor

65 or better is good. 45 to 64 is fair. Under 45 is poor.

Verified August 15, 2026

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OC Medical Center/ A. Thomas Parsa M.D. INC. — Brea, California
OC Medical Center/ A. Thomas Parsa M.D. INC. · 2864 E Imperial Hwy

What AI says about OC.1

We ask the assistants the questions customers actually ask, and record what comes back — quoted verbatim, dated, with the capture kept as evidence.

ChatGPT

Not named

Asked best family practice physician in Brea

ChatGPT answered with other businesses. OC Medical Center/ A. Thomas Parsa M.D. INC. was not mentioned.

Checked August 15, 2026

Perplexity

No answer

We have no answer from Perplexity to show.

Gemini

Not named

Asked best family practice physician in Brea

Gemini answered with other businesses. OC Medical Center/ A. Thomas Parsa M.D. INC. was not mentioned.

Checked August 15, 2026

Named by 0 of 2 assistants as of August 15, 2026. We have no answer on record from 1 more.

Reputation

What they’re known for.2

Drawn from live Google search results — the searches this business surfaces for when people look nearby. What its customers say is a separate read, below.

OC Medical Center, led by Dr. A. Thomas Parsa, is best known for its family medicine services and comprehensive care tailored to patients of all ages in Brea.

What people keep saying.3

Every review this business has, read and distilled — the mood, the consistent praise, and the recurring complaints.

Patients at OC Medical Center often describe their experiences as a mix of attentive care from providers like Dr. Thomas Parsa and Tiffany Zaken, PA-C, contrasted with frustrations regarding long wait times and unresponsive front desk staff. While many appreciate the thoroughness and compassion of the medical team, issues with billing and appointment management are common.

Consistently praised

Tiffany Zaken's thoroughness and patient advocacy
Dr. Parsa's compassionate and attentive care
Efficient appointment scheduling for routine checkups

Recurring complaints

Long waits past the appointment time
Incompetent front office staff
Billing issues and overcharging complaints

The bottom line: OC Medical Center is noted for its compassionate providers like Dr. Parsa and Tiffany Zaken, but suffers from significant front office and billing issues.

OC Medical Center/ A. Thomas Parsa M.D. INC. — Brea, California
OC Medical Center/ A. Thomas Parsa M.D. INC. · 2864 E Imperial Hwy

The score, explained

Why 22.4

Eight signals make up the AI Score. Weight is how much a signal counts; the score is how this entry measures on it. The same method for every business — never for sale.

95% of family practice physicians in the registry score higher.

Scanned August 15, 2026

SignalScore /100
Retrieval groundingWhether 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.
0
Off-property attestationVolume and consistency of what others say about you: YouTube mentions, branded web mentions, third-party “best-of” lists. The cause of retrievability.
40
AI visibilityWhether ChatGPT, Gemini, Perplexity, and AI Overviews name you, and whether they name you for the right service.
0
Reviews & responseThe 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.
56
Backlink & citation authorityDomain authority and editorial quality of the sources that attest to you.
52
Google Business ProfileRequired and recommended fields; update cadence. The listing AI pulls from first.
90
Speed & mobileCore Web Vitals at the 75th percentile, on a real phone.
Content freshness & schemaCrawl recency, intent alignment, valid JSON-LD, canonicals.
28

What’s holding this entry back: retrieval grounding and ai visibility — the signals dragging the score below where the rest of the record sits.

Read the full methodology

Standing

Where the entry ranks.

3rd

of 3 family practice physicians in Brea, ranked by AI Score.

See the Brea leaderboard

OC Medical Center/ A. Thomas Parsa M.D. INC. — Brea, California
OC Medical Center/ A. Thomas Parsa M.D. INC. · 2864 E Imperial Hwy

The facts

Address2864 E Imperial Hwy, Brea, CA 92821, USA
Hours
Today (Mon) · 9:00 AM – 12:00 PM, 2:00 – 5:00 PM
  • Monday9:00 AM – 12:00 PM, 2:00 – 5:00 PM
  • Tuesday9:00 AM – 12:00 PM, 2:00 – 5:00 PM
  • Wednesday9:00 AM – 12:00 PM, 2:00 – 5:00 PM
  • Thursday9:00 AM – 12:00 PM, 2:00 – 5:00 PM
  • Friday9:00 AM – 12:00 PM, 2:00 – 5:00 PM
  • SaturdayClosed
  • SundayClosed
Map of the area around OC Medical Center/ A. Thomas Parsa M.D. INC.
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Questions

About OC Medical Center/ A. Thomas Parsa M.D. INC..

What are the operating hours of OC Medical Center?

The clinic operates Monday through Friday from 9:00 AM to 12:00 PM and 2:00 PM to 5:00 PM. They are closed on Saturdays and Sundays.

Does OC Medical Center accept reservations?

The clinic does not accept reservations for appointments.

What is OC Medical Center known for?

The clinic is known for providing comprehensive family practice services, focusing on patient-centered care.

Is there parking available at OC Medical Center?

Yes, there is parking available at the clinic for patients.

Where is OC Medical Center located?

The clinic is located at 2864 E Imperial Hwy, Brea, CA 92821, USA.

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What AI says about you today

The answer ChatGPT and Perplexity give when someone asks for the best in your category and city. Named, or left out.

Your fix list

Every problem we found, one row at a time, each with the written steps to do it yourself and an honest estimate of how long it takes. Tick them off as you go.

Correct the details AI reads

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