Carleton Thomas Nibley, M.D.
Clinical Cardiac Electrophysiology Physician · Concord, CA
Carleton Thomas Nibley, M.D. is a clinical cardiac electrophysiology physician with a practice address in Concord, California, and NPI 1508963489, issued on Sep 20, 2006. Check the license (California G81444, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Carleton Thomas Nibley
- Credential
- M.D.
- Primary taxonomy
- Clinical Cardiac Electrophysiology Physician 207RC0001X
- License number
- G81444 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2700 Grant St, Concord, CA 94520
- Phone
- (925) 674-2880
- Enumerated
- Sep 20, 2006
- Record last updated
- Aug 30, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (925) 674-2883
- Medicaid IDs
- G81444 CA
GR0098120 CA - Medicare enrollment
- Enrolled (PECOS I20040216000729); accepts Medicare assignment
- Medical or professional school
- University Of Southern California Keck School Of Medicine, 1988
- 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 2700 Grant St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jason AdajarPhysical Therapist1689187825
- Johnson Adeyanju, M.D.Internal Medicine Physician1467403147
- Susan Adler-Bressler, M.D.Family Medicine Physician1588615207
- Kris Arneson, P.T.Physical Therapist1669596425
- Alicia Bakkum, NPClinical Nurse Specialist1982793220
- Mike Bannout, M.D.Internal Medicine Physician1598784662
Verify Carleton Thomas Nibley in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G81444Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
58% fewer Medicare Part D claims than the average clinical cardiac electrophysiology physician in 2024
723 Medicare Part D claims for 242 beneficiaries, against an average of 1,710 among the 3,173 providers of this specialty who prescribed in Part D. Brand-name drugs were 27% of claims.
Most prescribed
- Eliquis114 claims
- Metoprolol Succinate114 claims
- Amiodarone Hcl87 claims
- Xarelto41 claims
- Propafenone Hcl40 claims
- Sotalol31 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): 85.7 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).
Industry payments in 2024: $661.23
30 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. 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
- John Muir Physician NetworkConcord, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Carleton Thomas Nibley among 304 clinical cardiac electrophysiology physician records in California
Carleton Thomas Nibley, 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
- Graduated1988 · median 2002 among the 261 with a school on file
- Record last updated2016 · 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 Concord → Clinical Cardiac Electrophysiology Physician nationwide →
The 8 clinical cardiac electrophysiology physician records with the nearest ZIP codes
- Christopher Swan, M.D.Concord, CA 945201790913879
- Matthew Cain, M.D.Saint Helena, CA 945741912210931
- Susan Eisenberg, M.D.Saint Helena, CA 945741134226020
- Anurag Gupta, M.D.Walnut Creek, CA 945981255520623
- Steven Kang, MDOakland, CA 946091851320162
- Michael Lee, MDOakland, CA 946091770512378
- Sanjay Bindra, MDSan Mateo, CA 944031528080256
- Alan Schwartz, MDSan Mateo, CA 944021427019769
Common questions
What is Carleton Thomas Nibley, M.D.'s NPI number?
Carleton Thomas Nibley, M.D.'s National Provider Identifier (NPI) is 1508963489, issued on Sep 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Carleton Thomas Nibley, M.D. located?
The NPPES record lists a practice address at 2700 Grant St, Concord, CA, 94520. Phone: (925) 674-2880. Providers update this record themselves, so call before visiting.
How can I verify Carleton Thomas Nibley, M.D.'s license?
NPPES lists California license number G81444, 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 Carleton Thomas Nibley, M.D. prescribe under Medicare Part D?
In 2024, Carleton Thomas Nibley, M.D. had 723 Medicare Part D claims for 242 beneficiaries; the average among clinical cardiac electrophysiology physician prescribers was 1,710. Part D covers Medicare prescriptions only.
What is Carleton Thomas Nibley, M.D.'s MIPS final score?
The 2023 MIPS final score is 85.7 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.