Samuel Grossman, MD
Family Medicine Physician · Ventura, CA
Samuel Grossman, MD is a family medicine physician with a practice address in Ventura, California, and NPI 1538653415, issued on Jun 14, 2018. Check the license (California A164155, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Samuel Grossman
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A164155 CA
Self-reported in NPPES; status is on the state search - Practice location
- 300 Hillmont Ave, Bldg 340, Suite 201, Ventura, CA 93003
- Phone
- (805) 652-6100
- Enumerated
- Jun 14, 2018
- Record last updated
- Nov 14, 2023
- Fax
- (805) 652-3252
- Medicare enrollment
- Enrolled (PECOS I20211220000195); accepts Medicare assignment
- Medical or professional school
- New York Medical College, 2018
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 300 Hillmont Ave, Bldg 340, Suite 201
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Matthew Lamon, DOAddiction Medicine (Family Medicine) Physician1356835243
- John Nuhn, MDFamily Medicine Physician1144714973
Verify Samuel Grossman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A164155Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
50% fewer Medicare Part D claims than the average family medicine physician in 2024
1,771 Medicare Part D claims for 145 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 20 claims were for opioids.
Most prescribed
- Atorvastatin Calcium199 claims
- Metformin Hcl75 claims
- Lisinopril73 claims
- Losartan Potassium71 claims
- Levothyroxine Sodium70 claims
- Rosuvastatin Calcium67 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): 87.2 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $18.96
1 payment: food and beverage; the largest payer was Lilly USA, LLC. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
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
- County OF VenturaVentura, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Samuel Grossman among 17,133 family medicine physician records in California
Samuel Grossman, MD 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 fileYes · 62% of these records are
- Graduated2018 · 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).
234 family medicine physician records list a practice address in Ventura
They are 234 of the 4,435 NPPES records with a practice address in Ventura, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Ventura → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Charles Adams, M.D.Ventura, CA 930031811925225
- Veronica Butler, M.D.Ventura, CA 930031063472736
- Eric Chun, M.D.Ventura, CA 930031699702381
- Michelle Daucett, D.O.Ventura, CA 930031003873035
- Derrick Dcosta, M.D.Ventura, CA 930031487699005
- James Hermann, M.D.Ventura, CA 930031861442899
- Theodore Hole, M.D.Ventura, CA 930031104873611
- Andrew Kerr, M.D.Ventura, CA 930031487695078
Common questions
What is Samuel Grossman, MD's NPI number?
Samuel Grossman, MD's National Provider Identifier (NPI) is 1538653415, issued on Jun 14, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Samuel Grossman, MD located?
The NPPES record lists a practice address at 300 Hillmont Ave, Bldg 340, Suite 201, Ventura, CA, 93003. Phone: (805) 652-6100. Providers update this record themselves, so call before visiting.
How can I verify Samuel Grossman, MD's license?
NPPES lists California license number A164155, 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 Samuel Grossman, MD prescribe under Medicare Part D?
In 2024, Samuel Grossman, MD had 1,771 Medicare Part D claims for 145 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Samuel Grossman, MD's MIPS final score?
The 2023 MIPS final score is 87.2 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.