NPPES file of Aug 9, 2026

Paul C. Chen, MD

Ophthalmology Physician · Redwood City, CA

Paul C. Chen, MD is an ophthalmology physician with a practice address in Redwood City, California, and NPI 1184798464, issued on Nov 20, 2006. Check the license (California A73563, 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
1184798464
Name
Paul C. Chen
Credential
MD
Primary taxonomy
Ophthalmology Physician 207W00000X
License number
A73563 CA
Self-reported in NPPES; status is on the state search
Practice location
1150 Veterans Blvd, Redwood City, CA 94063
Phone
(650) 299-2000
Enumerated
Nov 20, 2006
Record last updated
Jan 10, 2022
Medicaid ID
00A735630 CA
Medicare enrollment
Enrolled (PECOS I20110103000895); accepts Medicare assignment
Medical or professional school
Indiana University School Of Medicine, 1996
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1150 Veterans Blvd

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

  1. James Ahn, MDEmergency Medicine Physician1528146180
  2. Pavlina Apte, M.D.Internal Medicine Physician1386785806
  3. Wilma Arguelles-Gaviola, MDInternal Medicine Physician1740368398
  4. Anil Assudani, M.D,Psychiatry Physician1497753909
  5. Everett Austin, MDNeurology Physician1083792642
  6. Lauren Bacon, DPTPhysical Therapist1295167583

Verify Paul C. Chen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A73563
    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

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26% more Medicare Part D claims than the average ophthalmology physician in 2024

1,911 Medicare Part D claims for 494 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.

  1. Paul Chen1,911
  2. Specialty average1,518

Most prescribed

  1. Latanoprost566 claims
  2. Dorzolamide-Timolol318 claims
  3. Prednisolone Acetate289 claims
  4. Polymyxin B Sul-Trimethoprim227 claims
  5. Timolol Maleate141 claims
  6. Brimonidine Tartrate120 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $22.54

1 payment: food and beverage; the largest payer was Abbvie Inc. 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. Paul Chen$22.54
  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.

Bills Medicare through one group practice

  1. Permanente Medical Group IncRedwood City, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Paul C. Chen among 2,899 ophthalmology physician records in California

Paul C. Chen, 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 fileYes · 66% of these records are
  • Graduated1996 · median 2001 among the 1,907 with a school on file
  • Record last updated2022 · 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. William Chang, MDRedwood City, CA 940631487732020
  2. Ronald Melles, MDRedwood City, CA 940631104904747
  3. Theresa Nguyen, D.O.Redwood City, CA 940631427206093
  4. Henry Upton, M.D.Redwood City, CA 940631285732669
  5. Judith Nevitt, M.D.Redwood City, CA 940611194816058
  6. James Tearse, MDRedwood City, CA 940611811099435
  7. James Abrams, M.D.San Bruno, CA 940661912903329
  8. Richard Braunstein, M.D.San Carlos, CA 940701639104433

Common questions

What is Paul C. Chen, MD's NPI number?

Paul C. Chen, MD's National Provider Identifier (NPI) is 1184798464, issued on Nov 20, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Paul C. Chen, MD located?

The NPPES record lists a practice address at 1150 Veterans Blvd, Redwood City, CA, 94063. Phone: (650) 299-2000. Providers update this record themselves, so call before visiting.

How can I verify Paul C. Chen, MD's license?

NPPES lists California license number A73563, 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.

How much does Paul C. Chen, MD prescribe under Medicare Part D?

In 2024, Paul C. Chen, MD had 1,911 Medicare Part D claims for 494 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.

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.