NPPES file of Aug 9, 2026

Andrea Grosz

Family Medicine Physician · San Francisco, CA

Andrea Grosz is a family medicine physician with a practice address in San Francisco, California, and NPI 1801214358, issued on Apr 2, 2014. Check the license (California A139831, 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 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1801214358
Name
Andrea Grosz
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
A139831 CA
Self-reported in NPPES; status is on the state search
Practice location
3850 17TH St, San Francisco, CA 94114
Phone
(415) 934-7700
Enumerated
Apr 2, 2014
Record last updated
Mar 30, 2023
Fax
(415) 558-8221
Medicare enrollment
Enrolled (PECOS I20170829004500); accepts Medicare assignment
Medical or professional school
Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University, 2014
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 3850 17TH St

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

  1. Nilda Alverio, MDFamily Medicine Physician1184756116
  2. Jacob Arellano-Anderson, MDFamily Medicine Physician1073191102
  3. Celia Bird, NP-CFamily Nurse Practitioner1780013979
  4. Kenneth ChristyCommunity Health Worker1356698633
  5. Philip Fagundes, LCSWSocial Worker1538698410
  6. Laura Feeney, PHARM.D.Pharmacist1790019578

Verify Andrea Grosz in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A139831
    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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42% fewer Medicare Part D claims than the average family medicine physician in 2024

2,049 Medicare Part D claims for 176 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims. 80 claims were for opioids.

  1. Andrea Grosz2,049
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium161 claims
  2. Amlodipine Besylate86 claims
  3. Gabapentin83 claims
  4. Levothyroxine Sodium71 claims
  5. Famotidine64 claims
  6. Tivicay64 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 90.3 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 score70.0
  2. Costout of 100 · 30%81.6
  3. Promoting interoperabilityout of 100 · 25%99.0
  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. City And County OF San FranciscoSan Francisco, CA

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

Andrea Grosz among 17,133 family medicine physician records in California

Andrea Grosz 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 2014, is newer than 71% of them.

  • NPI issued2014 · 71% of these records are older, 26% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2014 · median 2005 among the 10,652 with a school on file
  • 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).

Family Medicine Physician providers in California

There are 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Nilda Alverio, MDSan Francisco, CA 941141184756116
  2. Sharon Braun, MDSan Francisco, CA 941141194937441
  3. Jessica ChanSan Francisco, CA 941141902211840
  4. Leslie Lane, MDSan Francisco, CA 941141942595624
  5. Patrick Lowerre, M.D.San Francisco, CA 941141912200338
  6. Jonathan Lynne, M.D.San Francisco, CA 941141982975892
  7. Gregory Martin, MDSan Francisco, CA 941141619995867
  8. Daphne Miller, M.D.San Francisco, CA 941141538260054

Common questions

What is Andrea Grosz's NPI number?

Andrea Grosz's National Provider Identifier (NPI) is 1801214358, issued on Apr 2, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Andrea Grosz located?

The NPPES record lists a practice address at 3850 17TH St, San Francisco, CA, 94114. Phone: (415) 934-7700. Providers update this record themselves, so call before visiting.

How can I verify Andrea Grosz's license?

NPPES lists California license number A139831, 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 Andrea Grosz prescribe under Medicare Part D?

In 2024, Andrea Grosz had 2,049 Medicare Part D claims for 176 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.

What is Andrea Grosz's MIPS final score?

The 2023 MIPS final score is 90.3 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.