Richard Greenfield, M.D.
Orthopaedic Surgery Physician · San Diego, CA
Richard Greenfield, M.D. is an orthopaedic surgery physician with a practice address in San Diego, California, and NPI 1528020864, issued on Apr 3, 2006. Check the license (California A23089, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Richard Greenfield
- Credential
- M.D.
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- License number
- A23089 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3737 Moraga Ave, San Diego, CA 92117
- Phone
- (858) 270-4420
- Enumerated
- Apr 3, 2006
- Record last updated
- Jun 23, 2010 (not updated in 16 years: call before relying on the address or phone)
- Medicaid ID
- 00A230890 CA
- Medicare enrollment
- Enrolled (PECOS I20101227000228); accepts Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 1967
- Entity
- Type 1 · individual
Also registered at 3737 Moraga Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Richard Greenfield in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A23089Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
68% fewer Medicare Part D claims than the average orthopaedic surgery physician in 2024
109 Medicare Part D claims for 43 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D. 20 claims were for opioids.
Most prescribed
- Diclofenac Sodium59 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
- Richard Greenfield M D A Medical CorporationSan Diego, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Orthopaedic Surgery Physician providers in California
There are 2,276 orthopaedic surgery physician records in California.
Other orthopaedic surgery physician records in California
- Karim Abdollahi, M.D.Laguna Beach, CA1942240403
- Michael Abdulian, MDGlendale, CA1649469628
- Hussein Abdulrassoul, MDRiverside, CA1972123891
- Douglas Abeles, MDCastro Valley, CA1508961582
- Anthony Abene, MDSan Jose, CA1457437964
- Torgom Abraamyan, M.D.Van Nuys, CA1013370410
- Monther AbuhantashSan Francisco, CA1447041512
- Joshua Acebo, MDPalo Alto, CA1396373734
- Daniel Acevedo, M.D.Thousand Oaks, CA1184856122
- John Adams, MDLos Angeles, CA1215914114
Common questions
What is Richard Greenfield, M.D.'s NPI number?
Richard Greenfield, M.D.'s National Provider Identifier (NPI) is 1528020864, issued on Apr 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Richard Greenfield, M.D. located?
The NPPES record lists a practice address at 3737 Moraga Ave, San Diego, CA, 92117. Phone: (858) 270-4420. Providers update this record themselves, so call before visiting.
How can I verify Richard Greenfield, M.D.'s license?
NPPES lists California license number A23089, 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 Greenfield, M.D. prescribe under Medicare Part D?
In 2024, Richard Greenfield, M.D. had 109 Medicare Part D claims for 43 beneficiaries; the average among orthopaedic surgery physician prescribers was 346. 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.