NPPES file of Aug 9, 2026

Shirley M. Chan

Obstetrics & Gynecology Physician · Glendale, CA

Shirley M. Chan is an obstetrics & gynecology physician with a practice address in Glendale, California, and NPI 1609830348, issued on Apr 12, 2006. Check the license (California G58168, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1609830348
Name
Shirley M. Chan
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
G58168 CA
Self-reported in NPPES; status is on the state search
Practice location
1505 Wilson Terrace, Glendale, CA 91206
Phone
(818) 243-8431
Enumerated
Apr 12, 2006
Record last updated
Jun 27, 2011 (not updated in 15 years: call before relying on the address or phone)
Fax
(818) 247-9239
Medicaid ID
00G581680 CA
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.
Download card Updates feed

Also registered at 1505 Wilson Terrace

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

  1. Michael Frields, MDObstetrics & Gynecology Physician1104929900
  2. Mihran Shirinian, M.D.Hematology & Oncology Physician1730262122
  3. Eric Yavrouian, M. D.Otolaryngology Physician1194054015

Verify Shirley M. Chan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G58168
    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

65% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

57 Medicare Part D claims for 14 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.

  1. Shirley Chan57
  2. Specialty average165

Most prescribed

  1. Progesterone15 claims
  2. Estradiol (Twice Weekly)11 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.

The MIPS final score for 2023 (Medicare payment program): 97.1 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score84.2
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $140.23

6 payments; by number, the most common kind was food and beverage; the largest payer was Hologic Sales and Service, LLC. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Shirley Chan$140.23
  2. Specialty average$1,030.61

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

Shirley M. Chan among 5,088 obstetrics & gynecology physician records in California

Shirley M. Chan is one of 5,088 obstetrics & gynecology physician records with a practice address in California. 74% 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 5% of them.

  • NPI issued2006 · 5% of these records are older, 52% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileNo · 53% of these records are
  • Record last updated2011 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics & Gynecology Physician providers in California

There are 5,088 obstetrics & gynecology physician records in California.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. John Artenos, M.DGlendale, CA 912061538152715
  2. Chand Aryasingha, M.D.Glendale, CA 912061689802530
  3. Michael Frields, MDGlendale, CA 912061104929900
  4. Samantha Han, M.D.Glendale, CA 912061063512812
  5. Selena Lantry, M.D,Glendale, CA 912061063501880
  6. Nathalie Nguyen, D.O.Glendale, CA 912061164866901
  7. Angel Robinson, MD MPHGlendale, CA 912061598067688
  8. Laila Al-Marayati, M.D.Glendale, CA 912081689675498

Common questions

What is Shirley M. Chan's NPI number?

Shirley M. Chan's National Provider Identifier (NPI) is 1609830348, issued on Apr 12, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Shirley M. Chan located?

The NPPES record lists a practice address at 1505 Wilson Terrace, Glendale, CA, 91206. Phone: (818) 243-8431. Providers update this record themselves, so call before visiting.

How can I verify Shirley M. Chan's license?

NPPES lists California license number G58168, 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 Shirley M. Chan prescribe under Medicare Part D?

In 2024, Shirley M. Chan had 57 Medicare Part D claims for 14 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.

What is Shirley M. Chan's MIPS final score?

The 2023 MIPS final score is 97.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.