Merlin J. Hamer, M.D.
Orthopaedic Hand Surgery Physician · La Jolla, CA
Merlin J. Hamer, M.D. is an orthopaedic hand surgery physician with a practice address in La Jolla, California, and NPI 1124233820, issued on May 14, 2007. Check the license (California A105394, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Merlin J. Hamer
- Credential
- M.D.
- Primary taxonomy
- Orthopaedic Hand Surgery Physician 207XS0106X
- License number
- A105394 CA
Self-reported in NPPES; status is on the state search - Practice location
- 10666 N. Torrey Pines RD., La Jolla, CA 92037
- Phone
- (858) 554-7989
- Enumerated
- May 14, 2007
- Record last updated
- Jun 13, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (858) 554-6321
- Medicaid ID
- 200869890 IN
- Medicare enrollment
- Enrolled (PECOS I20090402000240); accepts Medicare assignment
- Medical or professional school
- Georgetown University School Of Medicine, 2002
- Entity
- Type 1 · individual
8 nearest orthopaedic hand surgery physician records → All 288 in California → Look up another NPI →
Also registered at 10666 N. Torrey Pines RD.
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Andrew Fernandez, DRNP,ANP-BC,OEHNPAdult Health Nurse Practitioner1396815775
- Janet Snyder, R.D.Registered Dietitian1255622403
Verify Merlin J. Hamer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A105394Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
76% fewer Medicare Part D claims than the average orthopaedic hand surgery physician in 2024
44 Medicare Part D claims for 33 beneficiaries, against an average of 186 among the 2,203 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 30 claims were for opioids.
Most prescribed
- Oxycodone Hcl25 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.
Bills Medicare through one group practice
- Scripps HealthLa Jolla, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Merlin J. Hamer among 288 orthopaedic hand surgery physician records in California
Merlin J. Hamer, M.D. is one of 288 orthopaedic hand surgery physician records with a practice address in California. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 48% of them.
- NPI issued2007 · 48% of these records are older, 38% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated2002 · median 2004 among the 214 with a school on file
- Record last updated2018 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207XS0106X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Orthopaedic Hand Surgery Physician providers in California
There are 288 orthopaedic hand surgery physician records in California.
All 288 in California → Every provider in La Jolla → Orthopaedic Hand Surgery Physician nationwide →
The 8 orthopaedic hand surgery physician records with the nearest ZIP codes
- Richard Brown, M.D.La Jolla, CA 920371477571958
- Paul Feldon, M.D.La Jolla, CA 920371346217817
- Lorenzo Pacelli, M.D.La Jolla, CA 920371457315178
- Mark Rechnic, MDLa Jolla, CA 920371114060126
- Michael Thompson, M.D.La Jolla, CA 920371356313167
- Arush Patel, M.D.Escondido, CA 920291487892352
- Justin Chan, M.D.Encinitas, CA 920241619310208
- Robert Gelb, M.D.Encinitas, CA 920241710079314
Common questions
What is Merlin J. Hamer, M.D.'s NPI number?
Merlin J. Hamer, M.D.'s National Provider Identifier (NPI) is 1124233820, issued on May 14, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Merlin J. Hamer, M.D. located?
The NPPES record lists a practice address at 10666 N. Torrey Pines RD., La Jolla, CA, 92037. Phone: (858) 554-7989. Providers update this record themselves, so call before visiting.
How can I verify Merlin J. Hamer, M.D.'s license?
NPPES lists California license number A105394, 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 Merlin J. Hamer, M.D. prescribe under Medicare Part D?
In 2024, Merlin J. Hamer, M.D. had 44 Medicare Part D claims for 33 beneficiaries; the average among orthopaedic hand surgery physician prescribers was 186. 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.