Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Family Practice

May S. Lin, DO

Sees patients in San Francisco, CA · California

Summary

May S. Lin, DO (Family Practice) is enrolled with Medicare at 1 practice location in San Francisco, CA. NPI 1124349303. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about May S. Lin, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Family PracticePrimary specialty
YesAccepts Medicare assignment
16Years since medical school (graduated 2010)
FemaleGender (as listed)
One Medical Group IncGroup practice

Quick answers

Where does May S. Lin see patients?
Medicare's clinician data lists 1 practice location in San Francisco, CA. Call before your visit to confirm the address.
What is May S. Lin's specialty?
Medicare lists Family Practice as the primary specialty.
Does May S. Lin accept Medicare assignment?
Yes. Medicare's clinician data says May S. Lin accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for May S. Lin?
(888) 663-6331, as listed in official Medicare / NPI Registry data.
What is May S. Lin's NPI number?
1124349303. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where May S. Lin is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists May S. Lin as a member of this group (CMS data updated 2026-10-02).

  • One Medical Group Inc331 clinicians in the group

Specialties

Find other Family Practice doctors in California →

Other family doctors in San Francisco

Clinicians with the same Medicare primary specialty in San Francisco, CA — not a recommendation.

All family doctors in San Francisco →

Clinician information

CredentialDO
Graduation year2010
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1124349303
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians