Brian Leonard, DO
Family Medicine Physician · Greeley, CO
Brian Leonard, DO is a family medicine physician with a practice address in Greeley, Colorado, and NPI 1265683098, issued on Oct 10, 2008. Check the license (Colorado 50456, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Brian Leonard
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 50456 CO
Self-reported in NPPES; status is on the state search - Practice location
- 1600 23RD Ave, Greeley, CO 80634
- Phone
- (970) 356-2424
- Enumerated
- Oct 10, 2008
- Record last updated
- Apr 23, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (970) 346-2771
- Medicare enrollment
- Enrolled (PECOS I20111111000621); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,563 in Colorado → Look up another NPI →
Also registered at 1600 23RD Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Brian Leonard in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 50456Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
41% fewer Medicare Part D claims than the average family medicine physician in 2024
2,083 Medicare Part D claims for 220 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. 45 claims were for opioids.
Most prescribed
- Atorvastatin Calcium143 claims
- Lisinopril125 claims
- Levothyroxine Sodium102 claims
- Omeprazole80 claims
- Simvastatin60 claims
- Losartan Potassium56 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: $25.61
1 payment: food and beverage; the largest payer was Exact Sciences Corporation. 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.
Bills Medicare through one group practice
- Intermountain Medical Group Denver LLCThornton, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Brian Leonard among 3,563 family medicine physician records in Colorado
Brian Leonard, DO is one of 3,563 family medicine physician records with a practice address in Colorado. 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 2008, is newer than 58% of them.
- NPI issued2008 · 58% of these records are older, 38% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2008 · median 2008 among the 2,077 with a school on file
- Record last updated2013 · 58% 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 Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
121 family medicine physician records list a practice address in Greeley
They are 121 of the 3,518 NPPES records with a practice address in Greeley, and 3,563 family medicine physician records in Colorado.
All 3,563 in Colorado → Every provider in Greeley → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Jacqueline Bearden, M.D.Greeley, CO 806341013912930
- Richard Budensiek, D.O.Greeley, CO 806341518962448
- Jeffrey Cook, MDGreeley, CO 806341992781892
- Herbert Fahrenholtz, MDGreeley, CO 806341811986169
- Anthony Fink, MDGreeley, CO 806341235116120
- Stacey Garber, MDGreeley, CO 806341558350892
- Wayne Jeffers, MDGreeley, CO 806341952390114
- Brian Kingston, MDGreeley, CO 806341356345391
Common questions
What is Brian Leonard, DO's NPI number?
Brian Leonard, DO's National Provider Identifier (NPI) is 1265683098, issued on Oct 10, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Brian Leonard, DO located?
The NPPES record lists a practice address at 1600 23RD Ave, Greeley, CO, 80634. Phone: (970) 356-2424. Providers update this record themselves, so call before visiting.
How can I verify Brian Leonard, DO's license?
NPPES lists Colorado license number 50456, as entered by the provider. Search the Colorado Medical Board at https://dpo.colorado.gov/Medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Brian Leonard, DO prescribe under Medicare Part D?
In 2024, Brian Leonard, DO had 2,083 Medicare Part D claims for 220 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.