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Clinical CompetenceEducation, Medical, GraduateGlaucoma
Dr. May S. Lin, DO
NPI1124349303PAC ID2668629585
- Medicare services, 2021
- 55
- Medicare patients, 2024
- 17
- Publications
- 2
- Industry payments
- $137
- Affiliated sites
- 2
- Practice address
- 1 The Embarcadero, San Francisco, CA 94111
- Practice phone
- Call (415) 578-3100
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
One Medical Group
San Francisco, California
Find Dr. Lin's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. May S. Lin is a family medicine physician in San Francisco, California
Dr. Lin practices at One Medical Group in San Francisco, California.
Dr. Lin's NPI, 1124349303, was assigned on June 22, 2010. Dr. Lin graduated from Touro University California - Vallejo in 2010. Dr. Lin holds California license 20A12347.
NPI and contact details
- NPI
- 1124349303NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2668629585
- NPI enumeration date
- June 22, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (415) 578-3100
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 42
- Medical school graduation
- 2010
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. May S. Lin practices at One Medical Group in San Francisco, California
Dr. Lin's primary practice is One Medical Group, at 1 The Embarcadero, San Francisco, CA 94111 in San Francisco County. The practice phone is (415) 578-3100.
- One Medical Group1 The Embarcadero, San Francisco, CA 94111 · San Francisco CountyPhone(415) 578-3100
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. May S. Lin is affiliated with 3 sites of care and 2 medical groups
Dr. Lin's primary practice is One Medical Group in San Francisco, California. The medical group on file is One Medical. Dmand AI also links Dr. Lin to 2 more group practices and clinics and 1 medical group, each named with a free account.
One Medical GroupPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. May S. Lin's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lin practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| One Medical Group | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. May S. Lin is one of 15,680 family medicine physicians in California
Family medicine is Dr. Lin's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Lin is board certified in family practice and osteopathic manipulative medicine by the AOA Board of Family Physicians. Dmand AI has Dr. Lin's licenses on file in 2 states: California and Pennsylvania.
Specialties and state licenses
- Family medicine, CaliforniaPrimary
- Pennsylvania license
Family medicine physicians near Dr. Lin
Counts of family medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. May S. Lin billed Medicare for 55 services in 2021
CMS data shows 55 Medicare services from Dr. Lin across 2 procedure codes in 2021, for 17 Medicare patients. Medicare paid $4,896 for them. Every service was in an office.
Medicare services, 202155
Medicare patients17
Paid by Medicare$4,896
Procedure codes2
Dr. Lin's Medicare services by type, 2020 to 2021
- 2020
- 2021
- Office and hospital visits
- 2020: 232021: 4074%
- Other services
- 2020: 02021: 15
Dr. Lin compared with the California median for family medicine physicians, 2021
- Dr. Lin
- California median
- Medicare services
- 55vs 24678% below
- Medicare patients
- 17vs 11886% below
Medians across 15,349 family medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Lin's most billed Medicare procedure codes, 2021
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Lin?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Lin and other family medicine physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. May S. Lin treated 17 Medicare patients in 2024, average age 71
CMS counts 17 Medicare patients who saw Dr. Lin in 2024. Their average risk score is 0.83, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Lin's median patient age at 47, with 50% women.
Medicare patients, 202417
Average age71
Average risk score0.83
Dr. Lin's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 47
Patient panel by sex, all payers
- Women50%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. May S. Lin takes part in Medicare
Dr. Lin accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. May S. Lin has 2 publications on record
Dmand AI links 2 papers to Dr. Lin. The most frequent topics are San Francisco. Dr. Lin's most frequent co-authors are Shan C. Lin, MD, Candy Kaihing Chan, MD, PhD and Thomas M. Lietman, MD.
Papers2
Topics Dr. Lin writes about most
- San Francisco
Dr. Lin's most frequent co-authors
- Shan C. Lin, MD2 shared papers
- Candy Kaihing Chan, MD, PhD1 shared paper
- Thomas M. Lietman, MD1 shared paper
Recent publications by Dr. Lin
Ophthalmic Epidemiol
Diabetic RetinopathyMedically Underserved AreaRacial Groups
See who Dr. Lin researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Lin works with, so you can find a warm path to the right family medicine physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. May S. Lin received $137 in industry payments from 2017 to 2019
CMS Open Payments shows 2 general payments to Dr. Lin from 2 drug and device companies from 2017 to 2019. Food and beverage make up the largest share, 100% of the total. Insmed, Inc. paid the most, $118.
General payments to Dr. Lin by program year, 2017 to 2019
Companies that paid Dr. Lin the most, 2017 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. May S. Lin graduated from Touro University California - Vallejo
Dr. Lin graduated from Touro University California - Vallejo in 2010. Dr. Lin is a member of AOA.
- Medical school
- Board certified in family practice and osteopathic manipulative medicine
Source: Dmand AI Professional Profile Data
Dr. May S. Lin accepts plans from 9 insurance carriers
Dr. Lin is in network with 9 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- Blue Cross and Blue Shield of Kansas City
- CMS Medicare
- +1 more carriersWith a free account
Plan types Dr. Lin accepts, by number of carriers
- Medicare8
- PPO6
- HMO3
- POS3
- EPO2
Source: Dmand AI Insurance Network Data
Sources for Dr. May S. Lin's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. May S. Lin
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. May S. Lin's NPI number?
Dr. May S. Lin's NPI number is 1124349303. It was assigned on June 22, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. May S. Lin?
Dr. May S. Lin is a family medicine physician in San Francisco, California. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. May S. Lin practice?
Dr. Lin practices at 1 The Embarcadero, San Francisco, CA 94111. Dr. Lin's primary practice is One Medical Group in San Francisco, California. Dmand AI also links Dr. Lin to 2 group practices and clinics and 1 medical group.
What is Dr. May S. Lin's office phone number?
The practice phone on file for Dr. Lin is (415) 578-3100.
What is Dr. May S. Lin's medical license number?
Dr. Lin holds California license 20A12347, one of the licenses on file in 2 states.
Which states has Dr. May S. Lin been licensed in?
Dmand AI has state licenses on file for Dr. Lin in California (2012 to 2027) and Pennsylvania (2010 to 2014).
What medical group is Dr. May S. Lin part of?
Dr. Lin is linked to One Medical. Dmand AI links Dr. Lin to 1 more medical group.
Does Dr. May S. Lin accept Medicare?
Yes. CMS data shows Dr. Lin billed Medicare for 55 services in 2021, and Dr. Lin accepts Medicare assignment.
How many Medicare patients does Dr. May S. Lin see?
CMS counts 17 Medicare patients who saw Dr. Lin in 2024, with an average age of 71.
Is Dr. May S. Lin board certified?
Yes. Dr. Lin is board certified in family practice and osteopathic manipulative medicine by the AOA Board of Family Physicians.
Show 7 more questionsShow fewer questions
What services does Dr. May S. Lin bill to Medicare?
In 2021, Dr. Lin's most billed Medicare services were office visit, established patient (99214) and medicare service (G0008).
Where did Dr. May S. Lin go to medical school?
Dr. Lin graduated from Touro University California - Vallejo in 2010.
Has Dr. May S. Lin received payments from drug or device companies?
CMS Open Payments shows $137 in general payments to Dr. Lin from 2 companies from 2017 to 2019. The largest total came from Insmed, Inc.
How long has Dr. May S. Lin been practicing?
Dr. Lin graduated from medical school in 2010, 16 years ago.
Does Dr. May S. Lin do research?
Dmand AI links 2 publications to Dr. Lin.
Who does Dr. May S. Lin publish with?
Dr. Lin's most frequent co-authors are Shan C. Lin, MD (2 shared papers), Candy Kaihing Chan, MD, PhD (1 shared paper) and Thomas M. Lietman, MD (1 shared paper).
What insurance does Dr. May S. Lin accept?
Dr. Lin is in network with 9 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.
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