James Dana Leo, M.D.
Internal Medicine Physician · Prescott, AZ
James Dana Leo, M.D. is an internal medicine physician with a practice address in Prescott, Arizona, and NPI 1730212010, issued on Mar 14, 2007. Check the license (Arizona 61337, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- James Dana Leo
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 61337 AZ
G49243 CA
Self-reported in NPPES; status is on the state search - Practice location
- 810 Ainsworth Dr, Prescott, AZ 86301
- Phone
- (928) 463-6831
- Enumerated
- Mar 14, 2007
- Record last updated
- Feb 21, 2026
- Fax
- (866) 342-0292
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,853 in Arizona → Look up another NPI →
Also registered at 810 Ainsworth Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify James Dana Leo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 61337Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
21% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,513 Medicare Part D claims for 170 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 43 claims were for opioids.
Most prescribed
- Rosuvastatin Calcium144 claims
- Ezetimibe102 claims
- Atorvastatin Calcium92 claims
- Amlodipine Besylate91 claims
- Metoprolol Succinate68 claims
- Olmesartan Medoxomil66 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: $31.47
1 payment: food and beverage; the largest payer was Medtronic, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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.
James Dana Leo among 2,853 internal medicine physician records in Arizona
James Dana Leo, M.D. is one of 2,853 internal medicine physician records with a practice address in Arizona. 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 2007, is newer than 45% of them.
- NPI issued2007 · 45% of these records are older, 47% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 58% of these records are
- Record last updated2026 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
48 internal medicine physician records list a practice address in Prescott
They are 48 of the 1,818 NPPES records with a practice address in Prescott, and 2,853 internal medicine physician records in Arizona.
All 2,853 in Arizona → Every provider in Prescott → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Suzanne Allen, M.D.Prescott, AZ 863011649287574
- Hojat Askari, MDPrescott, AZ 863011326251695
- Robert Barker, MDPrescott, AZ 863011710924196
- Kristen Bendinger, M.D.Prescott, AZ 863011386935344
- Kamala Boast, D.O.Prescott, AZ 863011639219520
- Erik Contreras, MDPrescott, AZ 863011265708416
- Syamala Darira, M.D.Prescott, AZ 863011780784710
- Joseph Goldberger, MDPrescott, AZ 863011699784546
Common questions
What is James Dana Leo, M.D.'s NPI number?
James Dana Leo, M.D.'s National Provider Identifier (NPI) is 1730212010, issued on Mar 14, 2007. An NPI identifies a provider in billing; it is not a license.
Where is James Dana Leo, M.D. located?
The NPPES record lists a practice address at 810 Ainsworth Dr, Prescott, AZ, 86301. Phone: (928) 463-6831. Providers update this record themselves, so call before visiting.
How can I verify James Dana Leo, M.D.'s license?
NPPES lists Arizona license number 61337, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does James Dana Leo, M.D. prescribe under Medicare Part D?
In 2024, James Dana Leo, M.D. had 2,513 Medicare Part D claims for 170 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.