NPPES file of Aug 9, 2026

Andrew D. Sun, M.D.

Anesthesiology Physician · Arroyo Grande, CA

Andrew D. Sun, M.D. is an anesthesiology physician with a practice address in Arroyo Grande, California, and NPI 1487640470, issued on Sep 23, 2005. Check the license (California G62329, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1487640470
Name
Andrew D. Sun
Credential
M.D.
Primary taxonomy
Anesthesiology Physician 207L00000X
License number
G62329 CA
Self-reported in NPPES; status is on the state search
Practice location
345 S Halcyon RD, Arroyo Grande, CA 93420
Phone
(805) 928-1731
Enumerated
Sep 23, 2005
Record last updated
Sep 12, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(805) 349-8160
Medicaid ID
00G623290 CA
Medicare enrollment
Enrolled (PECOS I20120118000448); accepts Medicare assignment
Medical or professional school
Medical College Of Ohio, 1986
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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8 nearest anesthesiology physician records → All 7,571 in California → Look up another NPI →

Also registered at 345 S Halcyon RD

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

  1. William Ashley, MDDiagnostic Radiology Physician1902942543
  2. Michele Daniele, RDNRegistered Dietitian1205589322
  3. Edward Deleonardis, MDDiagnostic Radiology Physician1588700645
  4. Angel Evans, LICENSE SOCIAL WORKSocial Worker1881257608
  5. Alexis Haynes, OTD, OTR/LOccupational Therapist1457272049
  6. Elizabeth Henrichs, OTR/LPhysical Rehabilitation Occupational Therapist1558983510

Verify Andrew D. Sun in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G62329    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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Bills Medicare through one group practice

  1. Associated Anesthesiologists OF The Central CoastArroyo Grande, CA

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

Andrew D. Sun among 7,571 anesthesiology physician records in California

Andrew D. Sun, M.D. is one of 7,571 anesthesiology physician records with a practice address in California. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 95% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated1986 · median 2006 among the 4,868 with a school on file
  • Record last updated2007 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Anesthesiology Physician providers in California

There are 7,571 anesthesiology physician records in California.

All 7,571 in California → Every provider in Arroyo Grande → Anesthesiology Physician nationwide →

The 8 anesthesiology physician records with the nearest ZIP codes

  1. Nolan Higa, M.D.Arroyo Grande, CA 934201407842792
  2. Louis NitsosArroyo Grande, CA 934201043392475
  3. Ronald Smith-Arizmendi, M.D.Arroyo Grande, CA 934201295721280
  4. Glen Aquino, MDSan Luis Obispo, CA 934051396985842
  5. Matthew Barry, DOSan Luis Obispo, CA 934051134268881
  6. Stephen Chu, MDSan Luis Obispo, CA 934051972638690
  7. Andrew Dixon, M.D.San Luis Obispo, CA 934051548550767
  8. Shawn Fouhy, M.D.San Luis Obispo, CA 934051801877949

Common questions

What is Andrew D. Sun, M.D.'s NPI number?

Andrew D. Sun, M.D.'s National Provider Identifier (NPI) is 1487640470, issued on Sep 23, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Andrew D. Sun, M.D. located?

The NPPES record lists a practice address at 345 S Halcyon RD, Arroyo Grande, CA, 93420. Phone: (805) 928-1731. Providers update this record themselves, so call before visiting.

How can I verify Andrew D. Sun, M.D.'s license?

NPPES lists California license number G62329, 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.