NPPES file of Aug 9, 2026

Sean S. May, M.D.

Gastroenterology Physician · Yuba City, CA

Sean S. May, M.D. is a gastroenterology physician with a practice address in Yuba City, California, and NPI 1134136989, issued on Aug 2, 2006. Check the license (California A38522, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1134136989
Name
Sean S. May
Credential
M.D.
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
A38522 CA
Self-reported in NPPES; status is on the state search
Practice location
550 B St, Yuba City, CA 95991
Phone
(530) 749-3650
Enumerated
Aug 2, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(530) 749-3651
Medicaid ID
00A385220 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.
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8 nearest gastroenterology physician records → All 2,140 in California → Look up another NPI →

Also registered at 550 B St

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

  1. Ramandeep Dosanjh, MDInternal Medicine Physician1124675780
  2. Ifeanyi Igwegbe, M.D.Gastroenterology Physician1073620217
  3. Kosuke Tokunaga, M.D.Gastroenterology Physician1578571626
  4. Chandra Veluru, MDGastroenterology Physician1750595443

Verify Sean S. May in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A38522    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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Sean S. May among 2,140 gastroenterology physician records in California

Sean S. May, M.D. is one of 2,140 gastroenterology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 7% of them.

  • NPI issued2006 · 7% of these records are older, 48% newer
  • In a Medicare fileNo · 83% of these records are
  • In the CMS Doctors and Clinicians fileNo · 72% of these records are
  • Record last updated2007 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gastroenterology Physician providers in California

There are 2,140 gastroenterology physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 2,140 in California → Every provider in Yuba City → Gastroenterology Physician nationwide →

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Ken Chow, M.D.Yuba City, CA 959911699781203
  2. Siva Doma, M.D.Yuba City, CA 959911700819422
  3. Ifeanyi Igwegbe, M.D.Yuba City, CA 959911073620217
  4. Alexander Kim, DOYuba City, CA 959911265504583
  5. Jon Marsh, M.D.Yuba City, CA 959911467468090
  6. Kosuke Tokunaga, M.D.Yuba City, CA 959911578571626
  7. Chandra Veluru, MDYuba City, CA 959911750595443
  8. Prathibha Chandrasekaran, M.D.Redding, CA 960011114985819

Common questions

What is Sean S. May, M.D.'s NPI number?

Sean S. May, M.D.'s National Provider Identifier (NPI) is 1134136989, issued on Aug 2, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Sean S. May, M.D. located?

The NPPES record lists a practice address at 550 B St, Yuba City, CA, 95991. Phone: (530) 749-3650. Providers update this record themselves, so call before visiting.

How can I verify Sean S. May, M.D.'s license?

NPPES lists California license number A38522, 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. 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.