NPPES file of Aug 9, 2026

Jennifer Stanziale, MD

Hospitalist Physician · Martinez, CA

Jennifer Stanziale, MD is a hospitalist physician with a practice address in Martinez, California, and NPI 1215467543, issued on Jun 19, 2017. Check the license (California A158366, 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
1215467543
Name
Jennifer Stanziale
Credential
MD
Primary taxonomy
Hospitalist Physician 208M00000X
License number
A158366 CA
Self-reported in NPPES; status is on the state search
Practice location
2500 Alhambra Ave, Martinez, CA 94553
Phone
(925) 370-5200
Enumerated
Jun 19, 2017
Record last updated
Jun 28, 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 2500 Alhambra Ave

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

  1. Pyra Aarden, MDEmergency Medicine Physician1417058199
  2. Zohaib AbbasiPsychiatry Physician1013392224
  3. Lolita AdonaFamily Nurse Practitioner1821110925
  4. Namita AgarwalPediatrics Physician1467626341
  5. Edward AgyekumDentist1124196696
  6. Abid Ahmed, M.D.Internal Medicine Physician1346531001

Verify Jennifer Stanziale in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A158366
    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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85% fewer Medicare Part D claims than the average hospitalist physician in 2024

76 Medicare Part D claims for 15 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 25% of claims.

  1. Jennifer Stanziale76
  2. Specialty average521

Most prescribed

  1. Quetiapine Fumarate12 claims
  2. Risperidone12 claims
  3. Sertraline Hcl12 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.

Jennifer Stanziale among 3,099 hospitalist physician records in California

Jennifer Stanziale, MD is one of 3,099 hospitalist physician records with a practice address in California. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 74% of them.

  • NPI issued2017 · 74% of these records are older, 23% newer
  • In a Medicare fileYes · 90% of these records are
  • In the CMS Doctors and Clinicians fileNo · 81% of these records are
  • Record last updated2023 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hospitalist Physician providers in California

There are 3,099 hospitalist physician records in California.

The 8 hospitalist physician records with the nearest ZIP codes

  1. Brittany Ashlock, MD, PHD, MPHWalnut Creek, CA 945531952728099
  2. Mehrdad Mansouri, M.D., PH.D.Martinez, CA 945531376532747
  3. Alfort Santos, M.D.,R.NLafayette, CA 945491376731505
  4. Amir Behzad Razavi, M.D.Napa, CA 945581063457059
  5. Debra Trnavsky-Hobbs, M.D.Napa, CA 945581316990724
  6. Maria Ait Rais, M.D.Castro Valley, CA 945461811239304
  7. Oluwaseyi Balasire, M.D.Castro Valley, CA 945461003235243
  8. Mariam Beshai, MDCastro Valley, CA 945461447839956

Common questions

What is Jennifer Stanziale, MD's NPI number?

Jennifer Stanziale, MD's National Provider Identifier (NPI) is 1215467543, issued on Jun 19, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Jennifer Stanziale, MD located?

The NPPES record lists a practice address at 2500 Alhambra Ave, Martinez, CA, 94553. Phone: (925) 370-5200. Providers update this record themselves, so call before visiting.

How can I verify Jennifer Stanziale, MD's license?

NPPES lists California license number A158366, 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 Jennifer Stanziale, MD prescribe under Medicare Part D?

In 2024, Jennifer Stanziale, MD had 76 Medicare Part D claims for 15 beneficiaries; the average among hospitalist physician prescribers was 521. 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.