Dr. Ethan Win Thein Lin, MD

  • Greenbrae, CA
  • Hospitalist
NPI1255871711PAC ID6305270018
Medicare services, 2024
278
Medicare patients, 2024
243
Part D claims, 2024
52
Hospital affiliations
5
Industry payments
$32
Practice address
250 Bon Air Road, Greenbrae, CA 94904
Practice phone
Call (415) 925-7900
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

MarinHealth Medical Center

Hospital · Greenbrae, California

See all 16 affiliations

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Dr. Ethan Win Thein Lin is a hospitalist in Greenbrae, California

Dr. Lin practices at MarinHealth Medical Center in Greenbrae, California, part of Marin Healthcare District.

Dr. Lin's NPI, 1255871711, was assigned on March 3, 2017. Dr. Lin graduated from Ross University School of Medicine in 2016. Dr. Lin's California license number on file is A164328.

NPI and contact details
Medicare PAC ID
6305270018
NPI enumeration date
March 3, 2017
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(415) 925-7900
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
36
Medical school graduation
2016

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Ethan Win Thein Lin practices at MarinHealth Medical Center in Greenbrae, California

Dr. Lin's primary practice is MarinHealth Medical Center, at 250 Bon Air Road, Greenbrae, CA 94904 in Marin County. The practice phone is (415) 925-7900.

Source: Dmand AI Affiliation Data

Dr. Ethan Win Thein Lin is affiliated with 5 sites of care and 11 medical groups

Dr. Lin's primary practice is MarinHealth Medical Center in Greenbrae, California, part of Marin Healthcare District. Dr. Lin is also affiliated with UCSF Helen Diller Medical Center at Parnassus Heights. The medical group on file is UCSF Pediatrics. Dmand AI also links Dr. Lin to 3 more hospitals and 10 medical groups, each named with a free account.

See all 16 affiliations for Dr. Lin

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Ethan Win Thein Lin's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lin practices, 5 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
MarinHealth Medical CenterAvailable with a free account
+4 more sites and 10 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Ethan Win Thein Lin is one of 3,186 hospitalists in California

Hospitalist is Dr. Lin's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Dr. Lin is board certified in family medicine by the American Board of Family Medicine. Dmand AI has Dr. Lin's licenses on file in 6 states: California, New York, Texas, Delaware, Alabama and Washington.

Specialties and state licenses

  • Hospitalist, CaliforniaPrimaryLicense A164328 · 2019 to 2025 · taxonomy 208M00000X
  • New York license2023 to 2026
  • Texas license2023 to 2026
  • Delaware licenseLicense C1-0025351 · 2022 to 2025
  • Family medicine, AlabamaLicense MD.47106 · 2023 to 2024 · taxonomy 207Q00000X
  • Washington license2023 to 2024

Clinical focus

Dmand AI lists acute respiratory failure, acute skin infection, atherosclerosis, cardiac arrhythmia, cellulitis, circulation problems, congestive heart failure and electrolyte disorders among the conditions Dr. Lin treats.

Hospitalists near Dr. Lin

Counts of hospitalists 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. Ethan Win Thein Lin billed Medicare for 278 services in 2024

CMS data shows 278 Medicare services from Dr. Lin across 4 procedure codes in 2024, for 243 Medicare patients. Medicare paid $34,183 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024278
Medicare patients243
Paid by Medicare$34,183
Procedure codes4

Dr. Lin's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 3422024: 27819%

Dr. Lin compared with the California median for hospitalists, 2024

  • Dr. Lin
  • California median
Medicare services
278vs 43035% below
Medicare patients
243vs 20121% above
Part D claims
15vs 6978% below

Medians across 2,991 hospitalists in California with Dmand AI profiles that report each measure.

Dr. Lin's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Lin

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Ethan Win Thein Lin treated 243 Medicare patients in 2024, average age 77

CMS counts 243 Medicare patients who saw Dr. Lin in 2024. The largest group is 75 to 84, with 77 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 55% are also on Medicaid. Their average risk score is 2.66, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Lin's median patient age at 62, with 50% women.

Medicare patients, 2024243
Average age77
Average risk score2.66
Also on Medicaid55%

Dr. Lin's Medicare patients by age, 2024

Dr. Lin's Medicare patients by sex, 2024

  • Women13154%
  • Men11246%

Chronic conditions among Dr. Lin's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Chronic kidney disease55%
  4. Ischemic heart disease51%
  5. Diabetes50%
  6. Heart failure50%
  7. Arthritis45%
  8. Atrial fibrillation42%

Share of Medicare patients with each condition. A patient can have several.

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 62

Patient panel by sex, all payers

  • Women50%
  • Men49%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Ethan Win Thein Lin wrote 52 Medicare Part D claims in 2024

In 2024, Dr. Lin wrote 52 Medicare Part D claims for 23 patients. 90% of them were for generic drugs. CMS names the drug for 15 of them, across 1 drug with 11 or more claims each, at $204 in total drug cost. In 2021, CMS named 36 claims across 3 drugs.

Part D claims, 202452
Drugs named by CMS1
Total drug cost$204
Part D patients23

Dr. Lin's Part D claims by kind of drug, 2024

  • Generic47 claims90%
  • Brand-name and other5 claims10%

Dr. Lin's most prescribed drugs by claims, 2022

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Lin's Part D claims, 2024

  • Antibiotics31%16 of 52 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2021 to 2022

  • 2021
  • 2022
Claims for drugs CMS names
2021: 362022: 1558%

Drugs named by CMS: 1 in 2022, 3 in 2021.

See all prescribing by Dr. Lin

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

How Dr. Ethan Win Thein 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. Ethan Win Thein Lin received $32 in industry payments in 2023

CMS Open Payments shows 1 general payment to Dr. Lin from 1 drug or device company in 2023. Food and beverage make up the largest share, 100% of the total. Pfizer Inc. paid the most, $32.

Companies that paid Dr. Lin the most, 2023 to 2023

Share is of all general payments to this clinician.

See all payments to Dr. Lin

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Ethan Win Thein Lin graduated from Ross University School of Medicine

Dr. Lin graduated from Ross University School of Medicine in 2016.

  1. Medical schoolRoss University School of Medicine
  2. Board certified in family medicineAmerican Board of Family Medicine

Source: Dmand AI Professional Profile Data

Dr. Ethan Win Thein Lin accepts plans from 10 insurance carriers

Dr. Lin is in network with 10 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.

  • Aetna
  • Elevance
  • Blue Cross Blue Shield of Michigan
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • Regence Health Plans
  • CMS Medicare
  • DE State Medicaid
  • +2 more carriersWith a free account

Plan types Dr. Lin accepts, by number of carriers

  1. Medicare8
  2. PPO6
  3. HMO3
  4. POS3
  5. EPO2
  6. Medicaid2

Source: Dmand AI Insurance Network Data

Sources for Dr. Ethan Win Thein Lin's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Ethan Win Thein 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. Ethan Win Thein Lin's NPI number?

Dr. Ethan Win Thein Lin's NPI number is 1255871711. It was assigned on March 3, 2017, and it is active in the NPI Registry.

What kind of doctor is Dr. Ethan Win Thein Lin?

Dr. Ethan Win Thein Lin is a hospitalist in Greenbrae, California. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).

Where does Dr. Ethan Win Thein Lin practice?

Dr. Lin practices at 250 Bon Air Road, Greenbrae, CA 94904. Dr. Lin's primary practice is MarinHealth Medical Center in Greenbrae, California, part of Marin Healthcare District. Dmand AI also links Dr. Lin to 3 hospitals and 10 medical groups.

What is Dr. Ethan Win Thein Lin's office phone number?

The practice phone on file for Dr. Lin is (415) 925-7900.

What is Dr. Ethan Win Thein Lin's medical license number?

Dr. Lin's California license number on file is A164328, one of the licenses on file in 6 states.

Which states has Dr. Ethan Win Thein Lin been licensed in?

Dmand AI has state licenses on file for Dr. Lin in California (2019 to 2025), New York (2023 to 2026), Texas (2023 to 2026), Delaware (2022 to 2025), Alabama (2023 to 2024) and Washington (2023 to 2024).

Which hospitals is Dr. Ethan Win Thein Lin affiliated with?

Dr. Lin practices at MarinHealth Medical Center in Greenbrae, California. Dr. Lin is also affiliated with UCSF Helen Diller Medical Center at Parnassus Heights. Dmand AI links Dr. Lin to 3 more hospitals.

What medical group is Dr. Ethan Win Thein Lin part of?

Dr. Lin is linked to UCSF Pediatrics. Dmand AI links Dr. Lin to 10 more medical groups.

Does Dr. Ethan Win Thein Lin accept Medicare?

Yes. CMS data shows Dr. Lin billed Medicare for 278 services in 2024, and Dr. Lin accepts Medicare assignment.

How many Medicare patients does Dr. Ethan Win Thein Lin see?

CMS counts 243 Medicare patients who saw Dr. Lin in 2024, with an average age of 77.

Show 7 more questionsShow fewer questions

Is Dr. Ethan Win Thein Lin board certified?

Yes. Dr. Lin is board certified in family medicine by the American Board of Family Medicine.

What services does Dr. Ethan Win Thein Lin bill to Medicare?

In 2024, Dr. Lin's most billed Medicare services were hospital inpatient care (99223), hospital inpatient care (99233) and hospital inpatient care (99232).

Where did Dr. Ethan Win Thein Lin go to medical school?

Dr. Lin graduated from Ross University School of Medicine in 2016.

What drugs does Dr. Ethan Win Thein Lin prescribe most?

In 2022 Medicare Part D data, Dr. Lin's most prescribed drugs by claims were Nitrofurantoin Mono-Macro.

Has Dr. Ethan Win Thein Lin received payments from drug or device companies?

CMS Open Payments shows $32 in general payments to Dr. Lin from 1 company from 2023 to 2023. The largest total came from Pfizer Inc.

How long has Dr. Ethan Win Thein Lin been practicing?

Dr. Lin graduated from medical school in 2016, 10 years ago.

What insurance does Dr. Ethan Win Thein Lin accept?

Dr. Lin is in network with 10 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.

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