NPPES file of Aug 9, 2026

Vincent Ken Lew, M.D.

Anesthesiology Physician · San Francisco, CA

Vincent Ken Lew, M.D. is an anesthesiology physician with a practice address in San Francisco, California, and NPI 1770899940, issued on Aug 26, 2010. Check the license (California A115534, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1770899940
Name
Vincent Ken Lew
Credential
M.D.
Primary taxonomy
Anesthesiology Physician 207L00000X
License number
A115534 CA
Self-reported in NPPES; status is on the state search
Practice location
513 Parnassus Avenue, S-436, San Francisco, CA 94143
Phone
(541) 619-8085
Enumerated
Aug 26, 2010
Record last updated
Apr 24, 2026
Medicare enrollment
Enrolled (PECOS I20140527000384); accepts Medicare assignment
Medical or professional school
Oregon Health Sciences University School Of Medicine, 2009
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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Verify Vincent Ken Lew in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A115534
    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): 91.9 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. Qualityout of 100 · 30% of the final score83.5
  2. Costout of 100 · 30%68.0
  3. Promoting interoperabilityout of 100 · 25%100.0
  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).

Bills Medicare through one group practice

  1. University OF California Sfgh Medical GroupSan Francisco, CA

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

Vincent Ken Lew among 7,571 anesthesiology physician records in California

Vincent Ken Lew, M.D. is one of 7,571 anesthesiology physician records with a practice address in California. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 65% of them.

  • NPI issued2010 · 65% of these records are older, 32% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated2009 · median 2006 among the 4,868 with a school on file
  • Record last updated2026 · 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 207L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

499 anesthesiology physician records list a practice address in San Francisco

They are 499 of the 38,143 NPPES records with a practice address in San Francisco, and 7,571 anesthesiology physician records in California.

The 8 anesthesiology physician records with the nearest ZIP codes

  1. Philip Bickler, MDSan Francisco, CA 941431245295450
  2. Ronald Braun, M.D.San Francisco, CA 941431700865367
  3. Neal Cohen, MDSan Francisco, CA 941431790740504
  4. Helge Eilers, MDSan Francisco, CA 941431134182884
  5. Adrian Gelb, MDSan Francisco, CA 941431568427185
  6. Michael Gropper, MDSan Francisco, CA 941431699730416
  7. Jeffrey Katz, MDSan Francisco, CA 941431295790913
  8. Terry Kim, MDSan Francisco, CA 941431972578524

Common questions

What is Vincent Ken Lew, M.D.'s NPI number?

Vincent Ken Lew, M.D.'s National Provider Identifier (NPI) is 1770899940, issued on Aug 26, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Vincent Ken Lew, M.D. located?

The NPPES record lists a practice address at 513 Parnassus Avenue, S-436, San Francisco, CA, 94143. Phone: (541) 619-8085. Providers update this record themselves, so call before visiting.

How can I verify Vincent Ken Lew, M.D.'s license?

NPPES lists California license number A115534, 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 Vincent Ken Lew, M.D.'s MIPS final score?

The 2023 MIPS final score is 91.9 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.