Charles Zachary Marriott, MD
Surgery Physician · Greeley, CO
Charles Zachary Marriott, MD is a surgery physician with a practice address in Greeley, Colorado, and NPI 1871122135, issued on Apr 7, 2020. Check the license (Colorado DR.0075462, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Charles Zachary Marriott
- Credential
- MD
- Primary taxonomy
- Surgery Physician 208600000X
- License numbers
- DR.0075462 CO
V6355 TX
Self-reported in NPPES; status is on the state search - Practice location
- 1800 15TH St Ste 200, Greeley, CO 80631
- Phone
- (970) 810-8216
- Enumerated
- Apr 7, 2020
- Record last updated
- Aug 28, 2025
- Fax
- (970) 810-5297
- Medicare enrollment
- Enrolled (PECOS I20250717004472); accepts Medicare assignment
- Medical or professional school
- George Washington University School Of Medicine, 2020
- Entity
- Type 1 · individual
8 nearest surgery physician records → All 608 in Colorado → Look up another NPI →
Also registered at 1800 15TH St Ste 200
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Thersia Knapik, M.D.Trauma Surgery Physician1679790034
- James Speed, M.D.Endocrinology, Diabetes & Metabolism Physician1811059660
Verify Charles Zachary Marriott in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license DR.0075462Check 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% fewer Medicare Part D claims than the average surgery physician in 2024
27 Medicare Part D claims for 14 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D.
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
- Banner Health Physicians Colorado LLCGreeley, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Charles Zachary Marriott among 608 surgery physician records in Colorado
Charles Zachary Marriott, MD is one of 608 surgery physician records with a practice address in Colorado. 74% 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 97% of them.
- NPI issued2020 · 97% of these records are older, under 1% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated2020 · median 2005 among the 370 with a school on file
- Record last updated2025 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgery Physician providers in Colorado
There are 608 surgery physician records in Colorado.
All 608 in Colorado → Every provider in Greeley → Surgery Physician nationwide →
The 8 surgery physician records with the nearest ZIP codes
- Molly Decker, DOGreeley, CO 806311194972091
- John Fessenden, M.D.Greeley, CO 806311407878598
- Lesley Fraser, MDGreeley, CO 806311154309011
- Michael Johnell, MDGreeley, CO 806311790700029
- Jason Ogren, MDGreeley, CO 806311275574758
- Michael Peetz, MDGreeley, CO 806311255319927
- James Schiefen, DOGreeley, CO 806311477525285
- Joseph Tyburczy, MDGreeley, CO 806311386682086
Common questions
What is Charles Zachary Marriott, MD's NPI number?
Charles Zachary Marriott, MD's National Provider Identifier (NPI) is 1871122135, issued on Apr 7, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Charles Zachary Marriott, MD located?
The NPPES record lists a practice address at 1800 15TH St Ste 200, Greeley, CO, 80631. Phone: (970) 810-8216. Providers update this record themselves, so call before visiting.
How can I verify Charles Zachary Marriott, MD's license?
NPPES lists Colorado license number DR.0075462, 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 Charles Zachary Marriott, MD prescribe under Medicare Part D?
In 2024, Charles Zachary Marriott, MD had 27 Medicare Part D claims for 14 beneficiaries; the average among surgery physician prescribers was 147. 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.