NPPES file of Aug 9, 2026

Thu Anh Lewin, FNP

Nurse Practitioner · San Francisco, CA

Thu Anh Lewin, FNP is a nurse practitioner with a practice address in San Francisco, California, and NPI 1356692958, issued on Sep 24, 2012. Check the license (California 95018271, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1356692958
Name
Thu Anh Lewin
Credential
FNP
Primary taxonomy
Nurse Practitioner 363L00000X
License number
95018271 CA
Self-reported in NPPES; status is on the state search
Practice location
1580 Valencia St, San Francisco, CA 94110
Phone
(415) 600-5400
Enumerated
Sep 24, 2012
Record last updated
Nov 20, 2025
Fax
(415) 600-5400
Medicare enrollment
Enrolled (PECOS I20230227002152); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1580 Valencia St

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

  1. Rebecca Amirault, CNMAdvanced Practice Midwife1194983627
  2. Desiree Arretz, M.D.Internal Medicine Physician1760409197
  3. Dave Atkin, M.D.Orthopaedic Surgery Physician1174543474
  4. Guadalupe Barragan, F.N.P.Registered Nurse1528084977
  5. Adrian Bartoli, MD, MSPain Medicine (Anesthesiology) Physician1154448256
  6. Emily Beck, C.N.M.Advanced Practice Midwife1558381665

Verify Thu Anh Lewin in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 95018271
    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
Find 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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49% fewer Medicare Part D claims than the average nurse practitioner in 2024

570 Medicare Part D claims for 146 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. 16 claims were for opioids.

  1. Thu Lewin570
  2. Specialty average1,109

Most prescribed

  1. Amlodipine Besylate47 claims
  2. Atorvastatin Calcium43 claims
  3. Losartan Potassium24 claims
  4. Diclofenac Sodium22 claims
  5. Hydrochlorothiazide16 claims
  6. Metformin Hcl15 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $282.40

4 payments; by number, the most common kind was food and beverage; the largest payer was Dexcom, Inc. The 38,884 providers of this specialty with any payment received $791.64 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Thu Lewin$282.40
  2. Specialty average$791.64

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Sutter Bay Medical FoundationSan Francisco, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Thu Anh Lewin among 8,223 nurse practitioner records in California

Thu Anh Lewin, FNP is one of 8,223 nurse practitioner records with a practice address in California. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 37% of them.

  • NPI issued2012 · 37% of these records are older, 61% newer
  • In a Medicare fileYes · 65% of these records are
  • In the CMS Doctors and Clinicians fileYes · 42% of these records are
  • Graduated2021 · median 2017 among the 3,425 with a school on file
  • Record last updated2025 · 45% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Nurse Practitioner providers in California

There are 8,223 nurse practitioner records in California.

The 8 nurse practitioner records with the nearest ZIP codes

  1. Sean BradenSan Francisco, CA 941101568600690
  2. Lorinda Coombs, N.P.San Francisco, CA 941101952510737
  3. Genell Hilton, PHD, NPSan Francisco, CA 941101245439488
  4. Cynthia Johnson, N.P., M.S.N., R.N.San Francisco, CA 941101235231531
  5. Susan Korbel, NPSan Francisco, CA 941101619059607
  6. Bessa Makoni, NPSan Francisco, CA 941101962734269
  7. Candace Matthews, BSN, RN, MSN, FNPSan Francisco, CA 941101316271745
  8. Linne McAleer, N.P.San Francisco, CA 941101215957311

Common questions

What is Thu Anh Lewin, FNP's NPI number?

Thu Anh Lewin, FNP's National Provider Identifier (NPI) is 1356692958, issued on Sep 24, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Thu Anh Lewin, FNP located?

The NPPES record lists a practice address at 1580 Valencia St, San Francisco, CA, 94110. Phone: (415) 600-5400. Providers update this record themselves, so call before visiting.

How can I verify Thu Anh Lewin, FNP's license?

NPPES lists California license number 95018271, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Thu Anh Lewin, FNP prescribe under Medicare Part D?

In 2024, Thu Anh Lewin, FNP had 570 Medicare Part D claims for 146 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. 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.