Garrett Sanford Mayo, MD
Family Medicine Physician · Greeley, CO
Garrett Sanford Mayo, MD is a family medicine physician with a practice address in Greeley, Colorado, and NPI 1619590494, issued on May 27, 2020. Check the license (Colorado DR.0066821, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Garrett Sanford Mayo
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- DR.0066821 CO
TL.0008449 CO
Self-reported in NPPES; status is on the state search - Practice location
- 1600 23RD Ave, Greeley, CO 80634
- Phone
- (970) 810-2815
- Enumerated
- May 27, 2020
- Record last updated
- Feb 9, 2024
- Fax
- (970) 353-5884
- Medicare enrollment
- Enrolled (PECOS I20230829002933); accepts Medicare assignment
- Medical or professional school
- Drexel University College Of Medicine, 2020
- 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 Garrett Sanford Mayo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license DR.0066821Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
80% fewer Medicare Part D claims than the average family medicine physician in 2024
712 Medicare Part D claims for 107 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 11 claims were for opioids.
Most prescribed
- Atorvastatin Calcium34 claims
- Gabapentin25 claims
- Lisinopril21 claims
- Omeprazole20 claims
- Ozempic17 claims
- Metformin Hcl16 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.
Bills Medicare through one group practice
- Sunrise Community HealthGreeley, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Garrett Sanford Mayo among 3,563 family medicine physician records in Colorado
Garrett Sanford Mayo, MD 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 2020, is newer than 90% of them.
- NPI issued2020 · 90% of these records are older, 8% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2020 · median 2008 among the 2,077 with a school on file
- Record last updated2024 · 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 Garrett Sanford Mayo, MD's NPI number?
Garrett Sanford Mayo, MD's National Provider Identifier (NPI) is 1619590494, issued on May 27, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Garrett Sanford Mayo, MD located?
The NPPES record lists a practice address at 1600 23RD Ave, Greeley, CO, 80634. Phone: (970) 810-2815. Providers update this record themselves, so call before visiting.
How can I verify Garrett Sanford Mayo, MD's license?
NPPES lists Colorado license number DR.0066821, 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 Garrett Sanford Mayo, MD prescribe under Medicare Part D?
In 2024, Garrett Sanford Mayo, MD had 712 Medicare Part D claims for 107 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.