NPPES file of Aug 9, 2026

Eric Siu Ping Chan, M.D.

Obstetrics & Gynecology Physician · Arroyo Grande, CA

Eric Siu Ping Chan, M.D. is an obstetrics & gynecology physician with a practice address in Arroyo Grande, California, and NPI 1780773044, issued on Oct 12, 2006. Check the license (California A51580, 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
1780773044
Name
Eric Siu Ping Chan
Credential
M.D.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
A51580 CA
Self-reported in NPPES; status is on the state search
Practice location
1057 E Grand Ave, Arroyo Grande, CA 93420
Phone
(626) 927-0874
Enumerated
Oct 12, 2006
Record last updated
Sep 29, 2022
Fax
(626) 927-0875
Medicare enrollment
Enrolled (PECOS I20101025000290); accepts Medicare assignment
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.
Download card Updates feed

Also registered at 1057 E Grand Ave

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

  1. Michael BosioPhysician Assistant1396576187
  2. George Cury, MDFamily Medicine Physician1083643878
  3. Shahrouz Eman, DCChiropractor1861426702
  4. Leticia Garcia, RNLicensed Vocational Nurse1508036310
  5. Donald HalseyFamily Medicine Physician1811917537
  6. Bradley Idelshon, D.O.Family Medicine Physician1538125745

Verify Eric Siu Ping 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 A51580
    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.

71% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

48 Medicare Part D claims for 21 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.

  1. Eric Chan48
  2. Specialty average165

Most prescribed

  1. Estradiol17 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.

Bills Medicare through one group practice

  1. Gracelight Community HealthLos Angeles, CA

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

Eric Siu Ping Chan among 5,088 obstetrics & gynecology physician records in California

Eric Siu Ping Chan, M.D. 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 fileYes · 53% of these records are
  • Graduated1984 · median 2004 among the 2,700 with a school on file
  • Record last updated2022 · 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. Neil Correia, M.D.Arroyo Grande, CA 934201316145303
  2. Mary Jackson, M.D.Arroyo Grande, CA 934201043296882
  3. Jane Lee, M.D.Arroyo Grande, CA 934201962450254
  4. Bruce Monroy, MDArroyo Grande, CA 934201790704161
  5. Lawrence Bines, M.D.Lompoc, CA 934261679517460
  6. Barbara Clutter, M.D.San Luis Obispo, CA 934051720004237
  7. Eric Colton, MDSan Luis Obispo, CA 934051790723492
  8. Kurt Haupt, M.D.San Luis Obispo, CA 934051255357620

Common questions

What is Eric Siu Ping Chan, M.D.'s NPI number?

Eric Siu Ping Chan, M.D.'s National Provider Identifier (NPI) is 1780773044, issued on Oct 12, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Eric Siu Ping Chan, M.D. located?

The NPPES record lists a practice address at 1057 E Grand Ave, Arroyo Grande, CA, 93420. Phone: (626) 927-0874. Providers update this record themselves, so call before visiting.

How can I verify Eric Siu Ping Chan, M.D.'s license?

NPPES lists California license number A51580, 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 Eric Siu Ping Chan, M.D. prescribe under Medicare Part D?

In 2024, Eric Siu Ping Chan, M.D. had 48 Medicare Part D claims for 21 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.