NPPES file of Aug 9, 2026

Lewis Zhiyuan Leng, M.D.

Neurological Surgery Physician · San Francisco, CA

Lewis Zhiyuan Leng, M.D. is a neurological surgery physician with a practice address in San Francisco, California, and NPI 1508018508, issued on Oct 21, 2008. Check the license (California 1145285, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1508018508
Name
Lewis Zhiyuan Leng
Credential
M.D.
Primary taxonomy
Neurological Surgery Physician 207T00000X
License number
1145285 CA
Self-reported in NPPES; status is on the state search
Practice location
1100 Van Ness Ave, San Francisco, CA 94109
Phone
(415) 600-0528
Enumerated
Oct 21, 2008
Record last updated
May 6, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(415) 369-1207
Medicaid ID
1508018508 CA
Medicare enrollment
Enrolled (PECOS I20130624000192); accepts Medicare assignment
Medical or professional school
Perelman School Of Med At The University Of Pennsylvania, 2006
Telehealth
Offers telehealth (CMS)
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 1100 Van Ness Ave

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

  1. Anousheh Afjei, MDInternal Medicine Physician1992365431
  2. Mohammed Ahmed, MDInternal Medicine Physician1700245115
  3. Haila AlbgalFamily Nurse Practitioner1417566043
  4. Ashley Arnold, LCSWClinical Social Worker1710559687
  5. Anjali Asrani, NPNurse Practitioner1184279770
  6. Ginny BaoEndocrinology, Diabetes & Metabolism Physician1801383286

Verify Lewis Zhiyuan Leng in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 1145285
    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

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42% fewer Medicare Part D claims than the average neurological surgery physician in 2024

99 Medicare Part D claims for 42 beneficiaries, against an average of 172 among the 4,378 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 13 claims were for opioids.

  1. Lewis Leng99
  2. Specialty average172

Most prescribed

  1. Meloxicam27 claims
  2. Gabapentin23 claims
  3. Baclofen14 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: $71.10

2 payments; by number, the most common kind was food and beverage; the largest payer was MicroVention, Inc. The 5,377 providers of this specialty with any payment received $14,925.58 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Lewis Leng$71
  2. Specialty average$14,926

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 FoundationNovato, CA

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

Lewis Zhiyuan Leng among 929 neurological surgery physician records in California

Lewis Zhiyuan Leng, M.D. is one of 929 neurological surgery physician records with a practice address in California. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 52% of them.

  • NPI issued2008 · 52% of these records are older, 41% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2006 · median 2005 among the 612 with a school on file
  • Record last updated2020 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207T00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neurological Surgery Physician providers in California

There are 929 neurological surgery physician records in California.

The 8 neurological surgery physician records with the nearest ZIP codes

  1. Matthew Macdougall, M.D.San Francisco, CA 941091053638320
  2. Peter Weber, M.D., NEUROSURGERYSan Francisco, CA 941091639165483
  3. Hesham Zakaria, MDSan Francisco, CA 941091932545316
  4. Michael ZhangSan Francisco, CA 941091972967917
  5. Ernest BarthelemySan Francisco, CA 941101467871442
  6. William Corn, MDSan Francisco, CA 941101962457903
  7. Grant Gauger, MDSan Francisco, CA 941101417901463
  8. Michael Huang, M.D.San Francisco, CA 941101760633770

Common questions

What is Lewis Zhiyuan Leng, M.D.'s NPI number?

Lewis Zhiyuan Leng, M.D.'s National Provider Identifier (NPI) is 1508018508, issued on Oct 21, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Lewis Zhiyuan Leng, M.D. located?

The NPPES record lists a practice address at 1100 Van Ness Ave, San Francisco, CA, 94109. Phone: (415) 600-0528. Providers update this record themselves, so call before visiting.

How can I verify Lewis Zhiyuan Leng, M.D.'s license?

NPPES lists California license number 1145285, 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.

How much does Lewis Zhiyuan Leng, M.D. prescribe under Medicare Part D?

In 2024, Lewis Zhiyuan Leng, M.D. had 99 Medicare Part D claims for 42 beneficiaries; the average among neurological surgery physician prescribers was 172. 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.