NPPES file of Aug 9, 2026

Patricia Sunae Yoon Ferrell, MD

Ophthalmology Physician · Hayward, CA

Patricia Sunae Yoon Ferrell, MD is an ophthalmology physician with a practice address in Hayward, California, and NPI 1073570388, issued on Apr 28, 2006. Check the license (California A68266, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1073570388
Name
Patricia Sunae Yoon Ferrell
Credential
MD
Primary taxonomy
Ophthalmology Physician 207W00000X
License number
A68266 CA
Self-reported in NPPES; status is on the state search
Practice location
1237 B St, Hayward, CA 94541
Phone
(510) 886-3937
Enumerated
Apr 28, 2006
Record last updated
Sep 3, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(510) 886-6304
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1237 B St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Tonya Alberelli, M.D.Ophthalmology Physician1619263233
  2. Shirin Barez, MDOphthalmology Physician1659338952
  3. Suzan Inadomi, O.D.Optometrist1396099800
  4. Robin Kuriakose, MDOphthalmology Physician1902302359
  5. Valerie Lim, O.D.Optometrist1346377439
  6. Mark Mandel, MDOphthalmology Physician1770541294

Verify Patricia Sunae Yoon Ferrell in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A68266
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Industry payments in 2024: $258.44

18 payments; by number, the most common kind was food and beverage; the largest payer was Alcon Vision LLC. The 13,221 providers of this specialty with any payment received $4,535.02 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Patricia Ferrell$258.44
  2. Specialty average$4,535.02

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Patricia Sunae Yoon Ferrell among 2,899 ophthalmology physician records in California

Patricia Sunae Yoon Ferrell, MD is one of 2,899 ophthalmology physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.

  • NPI issued2006 · 9% of these records are older, 45% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileNo · 66% of these records are
  • Record last updated2008 · 67% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Ophthalmology Physician providers in California

There are 2,899 ophthalmology physician records in California.

The 8 ophthalmology physician records with the nearest ZIP codes

  1. Tonya Alberelli, M.D.Hayward, CA 945411619263233
  2. Shirin Barez, MDHayward, CA 945411659338952
  3. Robin Kuriakose, MDHayward, CA 945411902302359
  4. Mark Mandel, MDHayward, CA 945411770541294
  5. David Green, M.DFremont, CA 945391972958866
  6. Sarbjit Hundal, M.D.Fremont, CA 945391871504605
  7. Amy Badger-Asaravala, M.D.Fremont, CA 945381831389089
  8. Audrey Chow, MDFremont, CA 945381386106441

Common questions

What is Patricia Sunae Yoon Ferrell, MD's NPI number?

Patricia Sunae Yoon Ferrell, MD's National Provider Identifier (NPI) is 1073570388, issued on Apr 28, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Patricia Sunae Yoon Ferrell, MD located?

The NPPES record lists a practice address at 1237 B St, Hayward, CA, 94541. Phone: (510) 886-3937. Providers update this record themselves, so call before visiting.

How can I verify Patricia Sunae Yoon Ferrell, MD's license?

NPPES lists California license number A68266, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.