Darren Bond Keller, M.D.
Gastroenterology Physician · San Diego, CA
Darren Bond Keller, M.D. is a gastroenterology physician with a practice address in San Diego, California, and NPI 1013988922, issued on Jan 30, 2006. Check the license (California C54900, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Darren Bond Keller
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- C54900 CA
0101234685 VA
Self-reported in NPPES; status is on the state search - Practice location
- 2929 Health Center Dr, San Diego, CA 92123
- Phone
- (858) 939-6531
- Enumerated
- Jan 30, 2006
- Record last updated
- Jun 19, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (619) 874-2351
- Medicare enrollment
- Enrolled (PECOS I20120530000675); accepts Medicare assignment
- Medical or professional school
- Boston University School Of Medicine, 2001
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 2,140 in California → Look up another NPI →
Also registered at 2929 Health Center Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Darren Bond Keller in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C54900Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
52% fewer Medicare Part D claims than the average gastroenterology physician in 2024
386 Medicare Part D claims for 122 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.
Most prescribed
- Omeprazole85 claims
- Mesalamine26 claims
- Ursodiol26 claims
- Azathioprine19 claims
- Gavilyte-G19 claims
- Linzess19 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 73.6 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Sharp Rees-Stealy Medical Group IncSan Diego, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Darren Bond Keller among 2,140 gastroenterology physician records in California
Darren Bond Keller, M.D. is one of 2,140 gastroenterology physician records with a practice address in California. 83% 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, 48% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2001 · median 2002 among the 1,538 with a school on file
- Record last updated2013 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in California
There are 2,140 gastroenterology physician records in California.
All 2,140 in California → Every provider in San Diego → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Michael Bennett, MDSan Diego, CA 921231700895927
- Susan Chu, M.D.San Diego, CA 921231033127162
- Sergio Flores, MDSan Diego, CA 921231588674022
- R Johnson, M.D.San Diego, CA 921231548272446
- Hyun Kim, MDSan Diego, CA 921231013023365
- Daniel Lee, M.D.San Diego, CA 921231063522613
- John Person, M.D.San Diego, CA 921231285647297
- Douglas Politoske, MDSan Diego, CA 921231528077740
Common questions
What is Darren Bond Keller, M.D.'s NPI number?
Darren Bond Keller, M.D.'s National Provider Identifier (NPI) is 1013988922, issued on Jan 30, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Darren Bond Keller, M.D. located?
The NPPES record lists a practice address at 2929 Health Center Dr, San Diego, CA, 92123. Phone: (858) 939-6531. Providers update this record themselves, so call before visiting.
How can I verify Darren Bond Keller, M.D.'s license?
NPPES lists California license number C54900, 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 Darren Bond Keller, M.D. prescribe under Medicare Part D?
In 2024, Darren Bond Keller, M.D. had 386 Medicare Part D claims for 122 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Darren Bond Keller, M.D.'s MIPS final score?
The 2023 MIPS final score is 73.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.