Gregory K. Feld, M.D.
Clinical Cardiac Electrophysiology Physician · San Diego, CA
Gregory K. Feld, M.D. is a clinical cardiac electrophysiology physician with a practice address in San Diego, California, and NPI 1720003924, issued on Jul 12, 2006. Check the license (California G37258, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Gregory K. Feld
- Credential
- M.D.
- Primary taxonomy
- Clinical Cardiac Electrophysiology Physician 207RC0001X
- License number
- G37258 CA
Self-reported in NPPES; status is on the state search - Practice location
- 200 W Arbor Dr, San Diego, CA 92103
- Phone
- (858) 657-8530
- Enumerated
- Jul 12, 2006
- Record last updated
- Nov 27, 2017 (not updated in 9 years: call before relying on the address or phone)
- Medicaid ID
- 00G372580 CA
- Medicare enrollment
- Enrolled (PECOS I20100929000184); accepts Medicare assignment
- Medical or professional school
- Geisel School Of Medicine At Dartmouth, 1977
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest clinical cardiac electrophysiology physician records → All 304 in California → Look up another NPI →
Also registered at 200 W Arbor Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Alison A'Court, MDAnesthesiology Physician1912218199
- Benjamin Abbadessa, M.D.Colon & Rectal Surgery Physician1255593612
- Geraldine Abcede, RNCertified Registered Nurse Anesthetist1982384046
- Joseph Abdelmalek, M.DNephrology Physician1740485531
- Kristy AbelCertified Registered Nurse Anesthetist1962113035
- Paula Abeleda, NPFamily Nurse Practitioner1558945022
Verify Gregory K. Feld in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G37258Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
77% fewer Medicare Part D claims than the average clinical cardiac electrophysiology physician in 2024
388 Medicare Part D claims for 131 beneficiaries, against an average of 1,710 among the 3,173 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims.
Most prescribed
- Metoprolol Succinate59 claims
- Eliquis46 claims
- Amiodarone Hcl34 claims
- Dofetilide27 claims
- Flecainide Acetate22 claims
- Diltiazem 24hr Er (Cd)21 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.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $14,460.02
88 payments; by number, the most common kind was food and beverage; the largest payer was Vektor Medical Inc. The 3,167 providers of this specialty with any payment received $10,651.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Regents OF The University OF CaliforniaSan Diego, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory K. Feld among 304 clinical cardiac electrophysiology physician records in California
Gregory K. Feld, M.D. is one of 304 clinical cardiac electrophysiology physician records with a practice address in California. 93% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 58% newer
- In a Medicare fileYes · 93% of these records are
- In the CMS Doctors and Clinicians fileYes · 87% of these records are
- Graduated1977 · median 2002 among the 261 with a school on file
- Record last updated2017 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0001X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Clinical Cardiac Electrophysiology Physician providers in California
There are 304 clinical cardiac electrophysiology physician records in California.
All 304 in California → Every provider in San Diego → Clinical Cardiac Electrophysiology Physician nationwide →
The 8 clinical cardiac electrophysiology physician records with the nearest ZIP codes
- Ulrika Birgersdotter-Green, MDSan Diego, CA 921031851349757
- Frederick Han, M.D.San Diego, CA 921031427255967
- Gordon Ho, M.D.San Diego, CA 921031346516069
- Kurt Hoffmayer, MDSan Diego, CA 921031841322195
- Jonathan Hsu, MDSan Diego, CA 921031629199195
- Calvin Kagan, MD, MPHSan Diego, CA 921031437543733
- David Krummen, M.D.San Diego, CA 921031235152885
- Tuan Mai, M.D.San Diego, CA 921031326280231
Common questions
What is Gregory K. Feld, M.D.'s NPI number?
Gregory K. Feld, M.D.'s National Provider Identifier (NPI) is 1720003924, issued on Jul 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregory K. Feld, M.D. located?
The NPPES record lists a practice address at 200 W Arbor Dr, San Diego, CA, 92103. Phone: (858) 657-8530. Providers update this record themselves, so call before visiting.
How can I verify Gregory K. Feld, M.D.'s license?
NPPES lists California license number G37258, 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 Gregory K. Feld, M.D. prescribe under Medicare Part D?
In 2024, Gregory K. Feld, M.D. had 388 Medicare Part D claims for 131 beneficiaries; the average among clinical cardiac electrophysiology physician prescribers was 1,710. Part D covers Medicare prescriptions only.
What is Gregory K. Feld, M.D.'s MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.