Robert Francisco Letamendi, M.D.
Adult Medicine Physician · Watsonville, CA
Robert Francisco Letamendi, M.D. is an adult medicine physician with a practice address in Watsonville, California, and NPI 1356341671, issued on Jul 28, 2005. Check the license (California A50002, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Robert Francisco Letamendi
- Credential
- M.D.
- Primary taxonomy
- Adult Medicine Physician 207QA0505X
- License number
- A50002 CA
Self-reported in NPPES; status is on the state search - Practice location
- 21 Brennan St, Watsonville, CA 95076
- Phone
- (831) 728-4030
- Enumerated
- Jul 28, 2005
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (831) 728-3205
- Medicaid ID
- 00A500020 CA
- Entity
- Type 1 · individual
8 nearest adult medicine physician records → All 386 in California → Look up another NPI →
Also registered at 21 Brennan St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- James Greenwood, D.O.Family Medicine Physician1477589281
- Alexandra SantosBehavior Analyst1780289009
Verify Robert Francisco Letamendi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A50002Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
78% fewer Medicare Part D claims than the average adult medicine physician in 2024
664 Medicare Part D claims for 51 beneficiaries, against an average of 3,002 among the 1,307 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
- Atorvastatin Calcium81 claims
- Losartan Potassium48 claims
- Metformin Hcl47 claims
- Levothyroxine Sodium39 claims
- Hydrochlorothiazide29 claims
- Escitalopram Oxalate28 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.
Robert Francisco Letamendi among 386 adult medicine physician records in California
Robert Francisco Letamendi, M.D. is one of 386 adult medicine physician records with a practice address in California. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 97% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileNo · 48% of these records are
- Record last updated2007 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207QA0505X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Adult Medicine Physician providers in California
There are 386 adult medicine physician records in California.
All 386 in California → Every provider in Watsonville → Adult Medicine Physician nationwide →
The 8 adult medicine physician records with the nearest ZIP codes
- Sharon Gehringer, PA-CSanta Cruz, CA 950601053423608
- Anand Singh, M.D.Santa Clara, CA 950541982818415
- Pacifico Santos, M.D.San Jose, CA 951161265547608
- Hung Trinh, M.D.,San Jose, CA 951161558336743
- Lien-Huong Nguyen, MDSan Jose, CA 951191841222197
- Johnny PhuSan Jose, CA 951191437682531
- Kindchia WongSan Jose, CA 951191326741679
- Vilasni Ganesh, MDLos Gatos, CA 950321972697738
Common questions
What is Robert Francisco Letamendi, M.D.'s NPI number?
Robert Francisco Letamendi, M.D.'s National Provider Identifier (NPI) is 1356341671, issued on Jul 28, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Robert Francisco Letamendi, M.D. located?
The NPPES record lists a practice address at 21 Brennan St, Watsonville, CA, 95076. Phone: (831) 728-4030. Providers update this record themselves, so call before visiting.
How can I verify Robert Francisco Letamendi, M.D.'s license?
NPPES lists California license number A50002, 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 Robert Francisco Letamendi, M.D. prescribe under Medicare Part D?
In 2024, Robert Francisco Letamendi, M.D. had 664 Medicare Part D claims for 51 beneficiaries; the average among adult medicine physician prescribers was 3,002. 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.