Richard Hamner, MD
Hospitalist Physician · Santa Cruz, CA
Richard Hamner, MD is a hospitalist physician with a practice address in Santa Cruz, California, and NPI 1588660401, issued on Jun 24, 2005. Check the license (California A66513, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Richard Hamner
- Credential
- MD
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- A66513 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1661 Soquel Dr Ste D, Santa Cruz, CA 95065
- Phone
- (831) 479-6603
- Enumerated
- Jun 24, 2005
- Record last updated
- Feb 22, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20041117000535); accepts Medicare assignment
- Medical or professional school
- University Of Southern California Keck School Of Medicine, 1997
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 3,099 in California → Look up another NPI →
Also registered at 1661 Soquel Dr Ste D
A shared address usually means a shared clinic or building; it does not show who employs whom.
- John Boggs, ACNPAcute Care Nurse Practitioner1679919138
- William Cao, MDHospitalist Physician1932189529
- Cesar Castillo, MDHospitalist Physician1578735148
- Rodrigo Cordero-Pangrazio, M.D.Hospitalist Physician1033571161
- Laura Hallahan, M.D.Hospitalist Physician1093155756
- David Hayward, M.D.Internal Medicine Physician1447368576
Verify Richard Hamner in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A66513Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
71% fewer Medicare Part D claims than the average hospitalist physician in 2024
150 Medicare Part D claims for 68 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D.
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.
Bills Medicare through one group practice
- Sutter Bay Medical FoundationSanta Cruz, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Richard Hamner among 3,099 hospitalist physician records in California
Richard Hamner, MD is one of 3,099 hospitalist physician records with a practice address in California. 90% 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, 98% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 81% of these records are
- Graduated1997 · median 2010 among the 2,505 with a school on file
- Record last updated2021 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in California
There are 3,099 hospitalist physician records in California.
All 3,099 in California → Every provider in Santa Cruz → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Jenifer Butler, M.D.Santa Cruz, CA 950651902950538
- William Cao, MDSanta Cruz, CA 950651932189529
- Cesar Castillo, MDSanta Cruz, CA 950651578735148
- Yolanda Cuadros, MDSanta Cruz, CA 950651619987203
- Rema Hanna, MDSanta Cruz, CA 950651265571202
- Donaldo Hernandez, M.D.Santa Cruz, CA 950651588644470
- Nhat Hoang, DOSanta Cruz, CA 950651215196480
- Wendi Knapp, M.D.Santa Cruz, CA 950651942238209
Common questions
What is Richard Hamner, MD's NPI number?
Richard Hamner, MD's National Provider Identifier (NPI) is 1588660401, issued on Jun 24, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Richard Hamner, MD located?
The NPPES record lists a practice address at 1661 Soquel Dr Ste D, Santa Cruz, CA, 95065. Phone: (831) 479-6603. Providers update this record themselves, so call before visiting.
How can I verify Richard Hamner, MD's license?
NPPES lists California license number A66513, 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 Richard Hamner, MD prescribe under Medicare Part D?
In 2024, Richard Hamner, MD had 150 Medicare Part D claims for 68 beneficiaries; the average among hospitalist physician prescribers was 521. 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.