NPPES file of Aug 9, 2026

Alan S. Rosenthal, DO

Internal Medicine Physician · Salinas, CA

Alan S. Rosenthal, DO is an internal medicine physician with a practice address in Salinas, California, and NPI 1174606818, issued on Oct 24, 2006. Check the license (California 20A4010, 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
1174606818
Name
Alan S. Rosenthal
Credential
DO
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
20A4010 CA
Self-reported in NPPES; status is on the state search
Practice location
2 Rossi Cir, Salinas, CA 93907
Phone
(831) 770-0444
Enumerated
Oct 24, 2006
Record last updated
Jul 9, 2007 (not updated in 19 years: call before relying on the address or phone)
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.
Download card Updates feed

Also registered at 2 Rossi Cir

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

  1. Ernesto Alvero, PAPhysician Assistant1013006477
  2. Melvin Carter, M.D.Internal Medicine Physician1134125636
  3. Briana Elliott, PA-CPhysician Assistant1447964176
  4. Marc Johnson, MDOccupational Medicine Physician1033251681
  5. Larry Widman, M.D.Occupational Medicine Physician1366765448

Verify Alan S. Rosenthal in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A4010
    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.

100% fewer Medicare Part D claims than the average internal medicine physician in 2024

11 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Alan Rosenthal11
  2. Specialty average3,176

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.

Alan S. Rosenthal among 17,696 internal medicine physician records in California

Alan S. Rosenthal, DO 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 updated2007 · 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).

Internal Medicine Physician providers in California

There are 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Melvin Carter, M.D.Salinas, CA 939071134125636
  2. Navneet Adya, MDSalinas, CA 939061558570010
  3. Leora Tricia AquinoSalinas, CA 939061659951341
  4. Jeanne Cabeza, MDSalinas, CA 939061598716227
  5. Matthew CalzettaSalinas, CA 939061619268257
  6. Valerie Choy, MDSalinas, CA 939061528011822
  7. Alfred Sadler, MDSalinas, CA 939061477559995
  8. Laura Solorio, MDSalinas, CA 939061558313734

Common questions

What is Alan S. Rosenthal, DO's NPI number?

Alan S. Rosenthal, DO's National Provider Identifier (NPI) is 1174606818, issued on Oct 24, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Alan S. Rosenthal, DO located?

The NPPES record lists a practice address at 2 Rossi Cir, Salinas, CA, 93907. Phone: (831) 770-0444. Providers update this record themselves, so call before visiting.

How can I verify Alan S. Rosenthal, DO's license?

NPPES lists California license number 20A4010, 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 Alan S. Rosenthal, DO prescribe under Medicare Part D?

In 2024, Alan S. Rosenthal, DO had 11 Medicare Part D claims; 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.