Ames D. Ressa, MD
Surgery Physician · San Diego, CA
Ames D. Ressa, MD is a surgery physician with a practice address in San Diego, California, and NPI 1487702338, issued on Jan 8, 2007. Check the license (California G55284, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ames D. Ressa
- Credential
- MD
- Primary taxonomy
- Surgery Physician 208600000X
- License number
- G55284 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4647 Zion Ave, San Diego, CA 92120
- Phone
- (619) 528-5000
- Enumerated
- Jan 8, 2007
- Record last updated
- Nov 22, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20101022001268); accepts Medicare assignment
- Medical or professional school
- Columbia University College Of Physicians And Surgeons, 1980
- Entity
- Type 1 · individual
8 nearest surgery physician records → All 3,118 in California → Look up another NPI →
Also registered at 4647 Zion Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Samy Abdou, MDNeurological Surgery Physician1215085006
- Samvel Abelyan, PHARMDPharmacist1306629928
- Ali Aboutaleb, MDFamily Medicine Physician1821261405
- Patricia Achilly, CNMAdvanced Practice Midwife1932257847
- Linda Adams, PAPhysician Assistant1427174689
- Mette-Margrethe Adkisson, M.D.Emergency Medicine Physician1528288081
Verify Ames D. Ressa in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G55284Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average surgery physician in 2024
16 Medicare Part D claims, against an average of 147 among the 20,115 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
- Southern California Permanente Medical GroupSan Diego, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ames D. Ressa among 3,118 surgery physician records in California
Ames D. Ressa, MD is one of 3,118 surgery physician records with a practice address in California. 75% 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 45% of them.
- NPI issued2007 · 45% of these records are older, 42% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated1980 · median 2003 among the 1,901 with a school on file
- Record last updated2021 · 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 208600000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgery Physician providers in California
There are 3,118 surgery physician records in California.
All 3,118 in California → Every provider in San Diego → Surgery Physician nationwide →
The 8 surgery physician records with the nearest ZIP codes
- Bradley Bartos, MDSan Diego, CA 921201033267836
- Michael Clar, MDSan Diego, CA 921201205996493
- Charles Dinerman, MDSan Diego, CA 921201285701136
- Amilcar Exume, MDSan Diego, CA 921201174682835
- Leah Farinas, M.D.San Diego, CA 921201295835072
- Jeffrey Farrier, MDSan Diego, CA 921201053488957
- Scott Greenway, MDSan Diego, CA 921201023177698
- Jennifer Khoe, M.D.San Diego, CA 921201679553101
Common questions
What is Ames D. Ressa, MD's NPI number?
Ames D. Ressa, MD's National Provider Identifier (NPI) is 1487702338, issued on Jan 8, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Ames D. Ressa, MD located?
The NPPES record lists a practice address at 4647 Zion Ave, San Diego, CA, 92120. Phone: (619) 528-5000. Providers update this record themselves, so call before visiting.
How can I verify Ames D. Ressa, MD's license?
NPPES lists California license number G55284, 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 Ames D. Ressa, MD prescribe under Medicare Part D?
In 2024, Ames D. Ressa, MD had 16 Medicare Part D claims; the average among surgery physician prescribers was 147. 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.