NPPES file of Aug 9, 2026

Kwun Wah Wen, M.D.

Clinical Pathology/Laboratory Medicine Physician · San Francisco, CA

Kwun Wah Wen, M.D. is a clinical pathology/laboratory medicine physician with a practice address in San Francisco, California, and NPI 1326307430, issued on May 9, 2012. Check the license (California A136853, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1326307430
Name
Kwun Wah Wen
Credential
M.D.
Primary taxonomy
Clinical Pathology/Laboratory Medicine Physician 207ZP0105X
License numbers
A136853 CA
MT201112 PA
Self-reported in NPPES; status is on the state search
Practice location
505 Parnassus Ave, San Francisco, CA 94143
Phone
(215) 662-2200
Enumerated
May 9, 2012
Record last updated
May 19, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20180717000984); accepts Medicare assignment
Medical or professional school
University Of North Carolina At Chapel Hill School Of Medicine, 2012
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 505 Parnassus Ave

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

  1. Alexander Aabedi, MDStudent in an Organized Health Care Education/Training Program1245971480
  2. Kathryn Aaronson, RN, CPNPPediatric Nurse Practitioner1992030951
  3. Sharon AbadaStudent in an Organized Health Care Education/Training Program1003492844
  4. Abul Abbas, MBBSAnatomic Pathology Physician1881652964
  5. Jesse Abelson, MDInternal Medicine Physician1083843817
  6. Rhonald AbitonaAcute Care Nurse Practitioner1164993473

Verify Kwun Wah Wen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A136853
    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

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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The practice group's MIPS final score for 2023 (Medicare payment program): 74.5 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualitynot scored (reweighted)
  2. Costout of 100 · 30%46.7
  3. Promoting interoperabilityout of 100 · 25%76.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $137.50

1 payment: consulting fee; the largest payer was Exact Sciences Corporation. The 177 providers of this specialty with any payment received $7,028.16 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Kwun Wen$137.50
  2. Specialty average$7,028.16

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. University OF California San FranciscoSan Francisco, CA

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

Kwun Wah Wen among 131 clinical pathology/laboratory medicine physician records in California

Kwun Wah Wen, M.D. is one of 131 clinical pathology/laboratory medicine physician records with a practice address in California. 36% 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 71% of them.

  • NPI issued2012 · 71% of these records are older, 25% newer
  • In a Medicare fileYes · 36% of these records are
  • In the CMS Doctors and Clinicians fileYes · 31% of these records are
  • Graduated2012 · median 1998 among the 40 with a school on file
  • Record last updated2021 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ZP0105X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Clinical Pathology/Laboratory Medicine Physician providers in California

There are 131 clinical pathology/laboratory medicine physician records in California.

The 8 clinical pathology/laboratory medicine physician records with the nearest ZIP codes

  1. Jayanta Debnath, MDSan Francisco, CA 941431558314211
  2. Anne Deucher, MD, PHDSan Francisco, CA 941431558696039
  3. Shane Falcinelli, MDSan Francisco, CA 941431962255067
  4. Yuet Kan, M.D.San Francisco, CA 941431194761809
  5. Elham Khanafshar, MDSan Francisco, CA 941431235196296
  6. Morvarid Moayeri, M.D., PH.D.San Francisco, CA 941431366777443
  7. Ari Molofsky, MD, PHDSan Francisco, CA 941431104151984
  8. David Park, M.D., PH.D.San Francisco, CA 941431396928040

Common questions

What is Kwun Wah Wen, M.D.'s NPI number?

Kwun Wah Wen, M.D.'s National Provider Identifier (NPI) is 1326307430, issued on May 9, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Kwun Wah Wen, M.D. located?

The NPPES record lists a practice address at 505 Parnassus Ave, San Francisco, CA, 94143. Phone: (215) 662-2200. Providers update this record themselves, so call before visiting.

How can I verify Kwun Wah Wen, M.D.'s license?

NPPES lists California license number A136853, 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.

What is Kwun Wah Wen, M.D.'s MIPS final score?

The 2023 MIPS final score is 74.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.