Clifford Davis Gaddy, MD
Family Medicine Physician · Billings, MT
Clifford Davis Gaddy, MD is a family medicine physician with a practice address in Billings, Montana, and NPI 1457810301, issued on Mar 19, 2019. Check the license (Montana MED-PHYS-LIC-152739, as entered in NPPES) on the Montana Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Clifford Davis Gaddy
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- MED-PHYS-LIC-152739 MT
Self-reported in NPPES; status is on the state search - Practice location
- 801 N 29TH St, Billings, MT 59101
- Phone
- (406) 238-2500
- Enumerated
- Mar 19, 2019
- Record last updated
- May 22, 2026
- Medicare enrollment
- Enrolled (PECOS I20250618002975); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 775 in Montana → Look up another NPI →
Also registered at 801 N 29TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Bijan Andrade, DPMFoot & Ankle Surgery Podiatrist1891059556
Verify Clifford Davis Gaddy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMontana Board of Medical Examiners
Search for license MED-PHYS-LIC-152739Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
29% fewer Medicare Part D claims than the average family medicine physician in 2024
2,526 Medicare Part D claims for 305 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 36 claims were for opioids.
Most prescribed
- Atorvastatin Calcium257 claims
- Amlodipine Besylate174 claims
- Metformin Hcl104 claims
- Pantoprazole Sodium87 claims
- Albuterol Sulfate Hfa85 claims
- Losartan Potassium82 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: $300.71
15 payments; by number, the most common kind was food and beverage; the largest payer was Teva Pharmaceuticals USA, Inc. 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.
One hospital affiliation
- Billings ClinicBillings, MT · Acute Care Hospitals4 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Clifford Davis Gaddy among 775 family medicine physician records in Montana
Clifford Davis Gaddy, MD is one of 775 family medicine physician records with a practice address in Montana. 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 2019, is newer than 90% of them.
- NPI issued2019 · 90% of these records are older, 8% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2019 · median 2007 among the 464 with a school on file
- Record last updated2026 · 53% 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 Montana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
111 family medicine physician records list a practice address in Billings
They are 111 of the 4,035 NPPES records with a practice address in Billings, and 775 family medicine physician records in Montana.
All 775 in Montana → Every provider in Billings → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Dale Agner, M.D.Billings, MT 591011861486490
- Bryn Burnham, D.O.Billings, MT 591011164476693
- Emily Colson, MDBillings, MT 591011952397929
- Diana Doll, MDBillings, MT 591011942263405
- Roxanne Fahrenwald, MDBillings, MT 591011104810688
- Paolo Gerbasi, MDBillings, MT 591011134166622
- James Guyer, M.D.Billings, MT 591011962495697
- Thomas James, MDBillings, MT 591011831183482
Common questions
What is Clifford Davis Gaddy, MD's NPI number?
Clifford Davis Gaddy, MD's National Provider Identifier (NPI) is 1457810301, issued on Mar 19, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Clifford Davis Gaddy, MD located?
The NPPES record lists a practice address at 801 N 29TH St, Billings, MT, 59101. Phone: (406) 238-2500. Providers update this record themselves, so call before visiting.
How can I verify Clifford Davis Gaddy, MD's license?
NPPES lists Montana license number MED-PHYS-LIC-152739, as entered by the provider. Search the Montana Board of Medical Examiners at https://ebiz.mt.gov/POL/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Clifford Davis Gaddy, MD prescribe under Medicare Part D?
In 2024, Clifford Davis Gaddy, MD had 2,526 Medicare Part D claims for 305 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.