Jerry J. Cimmarusti, MD
Internal Medicine Physician · Covina, CA
Jerry J. Cimmarusti, MD is an internal medicine physician with a practice address in Covina, California, and NPI 1386603322, issued on Mar 20, 2006. Check the license (California A56323, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Jerry J. Cimmarusti
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A56323 CA
Self-reported in NPPES; status is on the state search - Practice location
- 420 W Rowland St, Covina, CA 91723
- Phone
- (626) 331-6411
- Enumerated
- Mar 20, 2006
- Record last updated
- May 4, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (626) 251-1559
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 420 W Rowland St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mary Absood, M.D.Internal Medicine Physician1497735906
- Nancy Aceves, RN, FNPFamily Nurse Practitioner1235171703
- Joseph Alonzo, M.D.Internal Medicine Physician1225077050
- Sarah Anh, M.D.Emergency Medicine Physician1104037159
- Travis Boyer, FNPFamily Nurse Practitioner1265901870
- Annamari Cabrera, MDPediatrics Physician1881653434
Verify Jerry J. Cimmarusti in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A56323Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
55% more Medicare Part D claims than the average internal medicine physician in 2024
4,908 Medicare Part D claims for 1,618 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 85 claims were for opioids.
Most prescribed
- Atorvastatin Calcium327 claims
- Losartan Potassium235 claims
- Levothyroxine Sodium215 claims
- Amlodipine Besylate194 claims
- Omeprazole156 claims
- Eliquis140 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.
Jerry J. Cimmarusti among 17,696 internal medicine physician records in California
Jerry J. Cimmarusti, MD is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2021 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
35 internal medicine physician records list a practice address in Covina
They are 35 of the 3,736 NPPES records with a practice address in Covina, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Covina → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Mary Absood, M.D.Covina, CA 917231497735906
- Joseph Alonzo, M.D.Covina, CA 917231225077050
- Harry Chao, MDCovina, CA 917231487613451
- Kamini Chari, M.D.Covina, CA 917231265489280
- Vahid Javaherian, DOCovina, CA 917231609836972
- Ahmereen Khan, M.D.Covina, CA 917231174562243
- Sanjay Khedia, M.D.Covina, CA 917231326063801
- Arlene Nepomuceno, MDCovina, CA 917231043279037
Common questions
What is Jerry J. Cimmarusti, MD's NPI number?
Jerry J. Cimmarusti, MD's National Provider Identifier (NPI) is 1386603322, issued on Mar 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jerry J. Cimmarusti, MD located?
The NPPES record lists a practice address at 420 W Rowland St, Covina, CA, 91723. Phone: (626) 331-6411. Providers update this record themselves, so call before visiting.
How can I verify Jerry J. Cimmarusti, MD's license?
NPPES lists California license number A56323, 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 Jerry J. Cimmarusti, MD prescribe under Medicare Part D?
In 2024, Jerry J. Cimmarusti, MD had 4,908 Medicare Part D claims for 1,618 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.