Keith L. Callahan, M.D.
Family Medicine Physician · Warwick, RI
Keith L. Callahan, M.D. is a family medicine physician with a practice address in Warwick, Rhode Island, and NPI 1629063219, issued on Sep 20, 2005. Check the license (Rhode Island MD12303, as entered in NPPES) on the Rhode Island Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- Keith L. Callahan
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- MD12303 RI
Self-reported in NPPES; status is on the state search - Practice location
- 390 Toll Gate RD, Warwick, RI 02886
- Phone
- (401) 921-5672
- Enumerated
- Sep 20, 2005
- Record last updated
- Jun 24, 2026
- Fax
- (401) 921-5679
- Medicare enrollment
- Enrolled (PECOS I20071024000216); accepts Medicare assignment
- Medical or professional school
- Rush Medical College Of Rush University, 1995
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 475 in Rhode Island → Look up another NPI →
Also registered at 390 Toll Gate RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Paula Kocon, LICSWClinical Social Worker1508226614
Verify Keith L. Callahan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersRhode Island Board of Medical Licensure and Discipline
Search for license MD12303Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
82% more Medicare Part D claims than the average family medicine physician in 2024
6,463 Medicare Part D claims for 392 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 54 claims were for opioids.
Most prescribed
- Atorvastatin Calcium534 claims
- Amlodipine Besylate437 claims
- Lisinopril288 claims
- Alprazolam269 claims
- Levothyroxine Sodium230 claims
- Rosuvastatin Calcium229 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.
Industry payments in 2024: $521.32
23 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 55,478 providers of this specialty with any payment received $902.55 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.
Keith L. Callahan among 475 family medicine physician records in Rhode Island
Keith L. Callahan, M.D. is one of 475 family medicine physician records with a practice address in Rhode Island. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 88% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated1995 · median 2008 among the 282 with a school on file
- Record last updated2026 · 41% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Rhode Island practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
92 family medicine physician records list a practice address in Warwick
They are 92 of the 2,776 NPPES records with a practice address in Warwick, and 475 family medicine physician records in Rhode Island.
All 475 in Rhode Island → Every provider in Warwick → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Pierre Caron, MDWarwick, RI 028861871588947
- Susan Clemens, MDWarwick, RI 028861972566396
- David Danzer, M.D.Warwick, RI 028861770528275
- Michael Felder, DOWarwick, RI 028861871530592
- Douglas Foreman, DOWarwick, RI 028861710983366
- John Horan, DOWarwick, RI 028861679567531
- Polly Leonard, D.O.Warwick, RI 028861801893367
- Heather Mackey-Fowler, M.D.Warwick, RI 028861548294218
Common questions
What is Keith L. Callahan, M.D.'s NPI number?
Keith L. Callahan, M.D.'s National Provider Identifier (NPI) is 1629063219, issued on Sep 20, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Keith L. Callahan, M.D. located?
The NPPES record lists a practice address at 390 Toll Gate RD, Warwick, RI, 02886. Phone: (401) 921-5672. Providers update this record themselves, so call before visiting.
How can I verify Keith L. Callahan, M.D.'s license?
NPPES lists Rhode Island license number MD12303, as entered by the provider. Search the Rhode Island Board of Medical Licensure and Discipline at https://healthri.mylicense.com/Verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Keith L. Callahan, M.D. prescribe under Medicare Part D?
In 2024, Keith L. Callahan, M.D. had 6,463 Medicare Part D claims for 392 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.