NPPES file of Aug 9, 2026

Allen Zeng

Family Medicine Physician · Mountain View, CA

Allen Zeng is a family medicine physician with a practice address in Mountain View, California, and NPI 1396241600, issued on Apr 4, 2018. Check the license (California 17650, 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
1396241600
Name
Allen Zeng
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
17650 CA
Self-reported in NPPES; status is on the state search
Practice location
1674 N Shoreline Blvd, Mountain View, CA 94043
Phone
(888) 201-1937
Enumerated
Apr 4, 2018
Record last updated
Sep 6, 2023
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1674 N Shoreline Blvd

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

  1. Irina Borodulin-Smik, PAC, DCPhysician Assistant1629098116
  2. Jasneet Kullar, M.D.Internal Medicine Physician1639415870

Verify Allen Zeng in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 17650
    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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95% fewer Medicare Part D claims than the average family medicine physician in 2024

162 Medicare Part D claims for 88 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.

  1. Allen Zeng162
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium19 claims
  2. Losartan Potassium11 claims
  3. Simvastatin11 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.

Allen Zeng among 17,133 family medicine physician records in California

Allen Zeng is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 82% of them.

  • NPI issued2018 · 82% of these records are older, 15% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileNo · 62% of these records are
  • Record last updated2023 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

60 family medicine physician records list a practice address in Mountain View

They are 60 of the 2,467 NPPES records with a practice address in Mountain View, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Amanda Guzman, M.D.Mountain View, CA 940431912263500
  2. Kwun-Shan Lip, MDMountain View, CA 940431578615373
  3. Lalaine Smith, FNP-CMountain View, CA 940431245838879
  4. Jenny Hariri, D.O.Mountain View, CA 940411821438458
  5. Lianghuey Leu, MDMountain View, CA 940411104990381
  6. Prameela Madamala, MDMountain View, CA 940411689646390
  7. Lee Mei, M. D.Mountain View, CA 940411447639950
  8. Barbara Troupin, MDMountain View, CA 940411922360254

Common questions

What is Allen Zeng's NPI number?

Allen Zeng's National Provider Identifier (NPI) is 1396241600, issued on Apr 4, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Allen Zeng located?

The NPPES record lists a practice address at 1674 N Shoreline Blvd, Mountain View, CA, 94043. Phone: (888) 201-1937. Providers update this record themselves, so call before visiting.

How can I verify Allen Zeng's license?

NPPES lists California license number 17650, 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 Allen Zeng prescribe under Medicare Part D?

In 2024, Allen Zeng had 162 Medicare Part D claims for 88 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.