NPPES file of Aug 9, 2026

Sylvia S. Chen, P.A.-C, MMS

Physician Assistant · Santa Monica, CA

Sylvia S. Chen, P.A.-C, MMS is a physician assistant with a practice address in Santa Monica, California, and NPI 1023131786, issued on Apr 9, 2007. Check the license (California 16216, as entered in NPPES) with the California board that licenses this profession; 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
1023131786
Name
Sylvia S. Chen
Credential
P.A.-C, MMS
Primary taxonomy
Physician Assistant 363A00000X
License number
16216 CA
Self-reported in NPPES; status is on the state search
Practice location
2001 Santa Monica Blvd., Santa Monica, CA 90404
Phone
(310) 255-0990
Enumerated
Apr 9, 2007
Record last updated
Dec 7, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(310) 255-0996
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 2001 Santa Monica Blvd.

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

  1. Jitsen Chang, M.D.Obstetrics & Gynecology Physician1295033892

Verify Sylvia S. Chen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 16216
    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
Find the California license search

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91% fewer Medicare Part D claims than the average physician assistant in 2024

77 Medicare Part D claims for 19 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 39% of claims.

  1. Sylvia Chen77
  2. Specialty average830

Most prescribed

  1. Progesterone18 claims
  2. Estradiol (Twice Weekly)14 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: $368.09

21 payments; by number, the most common kind was food and beverage; the largest payer was Mayne Pharma Commercial LLC. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Sylvia Chen$368.09
  2. Specialty average$841.65

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

Sylvia S. Chen among 14,451 physician assistant records in California

Sylvia S. Chen, P.A.-C, MMS is one of 14,451 physician assistant records with a practice address in California. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 13% of them.

  • NPI issued2007 · 13% of these records are older, 78% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileNo · 50% of these records are
  • Record last updated2012 · 40% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

79 physician assistant records list a practice address in Santa Monica

They are 79 of the 5,151 NPPES records with a practice address in Santa Monica, and 14,451 physician assistant records in California.

The 8 physician assistant records with the nearest ZIP codes

  1. Amy Adams, PASanta Monica, CA 904041609827708
  2. Maia Aronson, P.A.Santa Monica, CA 904041861762882
  3. Sherryl Beh, PASanta Monica, CA 904041467497719
  4. Jill Caratan, PACSanta Monica, CA 904041821180480
  5. Brian Cary, PASanta Monica, CA 904041376733790
  6. Mason Devon, P.A.Santa Monica, CA 904041235492299
  7. Jennifer Kosova, PACSanta Monica, CA 904041083636203
  8. Amelia Mittleman, PA-CSanta Monica, CA 904041770849663

Common questions

What is Sylvia S. Chen, P.A.-C, MMS's NPI number?

Sylvia S. Chen, P.A.-C, MMS's National Provider Identifier (NPI) is 1023131786, issued on Apr 9, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Sylvia S. Chen, P.A.-C, MMS located?

The NPPES record lists a practice address at 2001 Santa Monica Blvd., Santa Monica, CA, 90404. Phone: (310) 255-0990. Providers update this record themselves, so call before visiting.

How can I verify Sylvia S. Chen, P.A.-C, MMS's license?

NPPES lists California license number 16216, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Sylvia S. Chen, P.A.-C, MMS prescribe under Medicare Part D?

In 2024, Sylvia S. Chen, P.A.-C, MMS had 77 Medicare Part D claims for 19 beneficiaries; the average among physician assistant prescribers was 830. 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.