NPPES file of Aug 9, 2026

Jennifer Hasa, M.D.

Family Medicine Physician · Sonoma, CA

Jennifer Hasa, M.D. is a family medicine physician with a practice address in Sonoma, California, and NPI 1982951851, issued on Aug 10, 2012. Check the license (California A162784, 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
1982951851
Name
Jennifer Hasa
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
A162784 CA
Self-reported in NPPES; status is on the state search
Practice location
19270 Sonoma Highway, Sonoma, CA 95476
Phone
(707) 939-6070
Enumerated
Aug 10, 2012
Record last updated
Mar 7, 2023
Medicare enrollment
Enrolled (PECOS I20210915003420); may accept Medicare assignment
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.
Download card Updates feed

Also registered at 19270 Sonoma Highway

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

  1. Stacie Anderson, AGNPGerontology Nurse Practitioner1407695182
  2. Michael Bartos, M.D.Psychiatry Physician1679625891
  3. Jennifer DarbyFamily Nurse Practitioner1356863831
  4. Claudia Govea Ochoa, REGISTER NURSERegistered Nurse1265973143

Verify Jennifer Hasa in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A162784    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

18% more Medicare Part D claims than the average family medicine physician in 2024

4,185 Medicare Part D claims for 335 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 97 claims were for opioids.

  1. Jennifer Hasa4,185
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium328 claims
  2. Lisinopril163 claims
  3. Amlodipine Besylate143 claims
  4. Levothyroxine Sodium140 claims
  5. Losartan Potassium136 claims
  6. Fluticasone Propionate87 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.

Bills Medicare through one group practice

  1. Sonoma Valley Community Health CenterSonoma, CA

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

20 family medicine physician records list a practice address in Sonoma

They are 20 of the 395 NPPES records with a practice address in Sonoma, and 17,133 family medicine physician records in California.

All 20 in Sonoma → All 17,133 in California → Every provider in Sonoma →

Other family medicine physician records in California

  1. Omer Aba-Omer, MDSanta Monica, CA1649702093
  2. Michelle Ababa, MDWilmington, CA1710922513
  3. Anna Tzeitel Abalos, MDRoseville, CA1720200017
  4. Adan Abarca, MDAnaheim, CA1760553689
  5. Vanessa Abarca, DOVentura, CA1952040859
  6. Lorraine Abate, M.D.Sacramento, CA1104840008
  7. Robert Abatecola, MDCastro Valley, CA1669551719
  8. Romeo Abaya, M.D.Cottonwood, CA1598053506
  9. Effiem Abbah, MD, MPHSan Francisco, CA1821185133
  10. Khuzeman Abbasi, MDSanta Rosa, CA1841979952

Common questions

What is Jennifer Hasa, M.D.'s NPI number?

Jennifer Hasa, M.D.'s National Provider Identifier (NPI) is 1982951851, issued on Aug 10, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Jennifer Hasa, M.D. located?

The NPPES record lists a practice address at 19270 Sonoma Highway, Sonoma, CA, 95476. Phone: (707) 939-6070. Providers update this record themselves, so call before visiting.

How can I verify Jennifer Hasa, M.D.'s license?

NPPES lists California license number A162784, 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 Hasa, M.D. prescribe under Medicare Part D?

In 2024, Jennifer Hasa, M.D. had 4,185 Medicare Part D claims for 335 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.