NPPES file of Aug 9, 2026

Tun Sein Lee, M.D.

Obstetrics & Gynecology Physician · Pleasanton, CA

Tun Sein Lee, M.D. is an obstetrics & gynecology physician with a practice address in Pleasanton, California, and NPI 1518983519, issued on Jul 14, 2006. Check the license (California A36424, 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
1518983519
Name
Tun Sein Lee
Credential
M.D.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
A36424 CA
Self-reported in NPPES; status is on the state search
Practice location
5565 W. Las Positas Blvd, Pleasanton, CA 94588
Phone
(925) 416-6846
Enumerated
Jul 14, 2006
Record last updated
Dec 5, 2011 (not updated in 15 years: call before relying on the address or phone)
Fax
(925) 416-6847
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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Verify Tun Sein Lee in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A36424
    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

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Tun Sein Lee among 5,088 obstetrics & gynecology physician records in California

Tun Sein Lee, 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 not. Its NPI, issued in 2006, is newer than 5% of them.

  • NPI issued2006 · 5% of these records are older, 52% newer
  • In a Medicare fileNo · 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).

31 obstetrics & gynecology physician records list a practice address in Pleasanton

They are 31 of the 2,213 NPPES records with a practice address in Pleasanton, and 5,088 obstetrics & gynecology physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

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

  1. Deborah Ansley, MDPleasanton, CA 945881336227412
  2. Pushpa Dalal, MDPleasanton, CA 945881013089408
  3. Todd Dillard, MDPleasanton, CA 945881346328424
  4. Hanh-Nguyen Do, MDPleasanton, CA 945881003907338
  5. Peggy Hsu, MDPleasanton, CA 945881285712372
  6. Janis Kahn, MDPleasanton, CA 945881558449629
  7. William Phillips, M.D.Pleasanton, CA 945881538188198
  8. Gul Qidwai, MDPleasanton, CA 945881801974985

Common questions

What is Tun Sein Lee, M.D.'s NPI number?

Tun Sein Lee, M.D.'s National Provider Identifier (NPI) is 1518983519, issued on Jul 14, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Tun Sein Lee, M.D. located?

The NPPES record lists a practice address at 5565 W. Las Positas Blvd, Pleasanton, CA, 94588. Phone: (925) 416-6846. Providers update this record themselves, so call before visiting.

How can I verify Tun Sein Lee, M.D.'s license?

NPPES lists California license number A36424, 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.

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.