Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1871122135 Individual Practitioner Male Practitioner

Dr. Charles Zachary Marriott , MD

Surgery • Greeley, CO

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Charles Marriott, MD is a certified Surgery practicing in Greeley, CO. With approximately 6 years of clinical experience since graduating from George Washington University School Of Medicine in 2020, Dr. Marriott delivers high-quality medical care to the local community at 1800 15TH ST STE 200.

Dr. Marriott is affiliated with Banner Health Physicians Colorado Llc and accepts Medicare assignment.

Practice Location & Contact Primary Location

Practice Address

1800 15th St Ste 200

Greeley, CO 806314563

Telephone 9708108216
Fax 9708105297
Associated Practice Facility / Clinic

Medicare Profile & Education

Medical School

George Washington University School Of Medicine

Graduation Year

2020

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Surgery in Greeley, CO

Experienced Practitioner (5-10 Yrs)
Practitioner Clinical Experience
6 Yrs -17.0 yrs vs City Avg
City Avg: 23.0 Yrs
State Avg: 23.8 Yrs
Regional Practice Density
13 Specialists

Practicing in Greeley, CO (635 Statewide)

Telehealth Adoption Rate
0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
67.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Marriott (6 Years) 6 Yrs
Greeley Specialty Average (23.0 Years) 23.0 Yrs

Medical Specialties & State Licenses

CMS Verified: 2025-08-28
Surgery Primary Specialty

NUCC Taxonomy Code: 208600000X

State License CO DR.0075462

A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

Surgery

NUCC Taxonomy Code: 208600000X

State License TX V6355

A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

Student in an Organized Health Care Education/Training Program

NUCC Taxonomy Code: 390200000X

An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.

Hospital & Practice Group Affiliations

Banner Health Physicians Colorado Llc

1800 15th St, Greeley, CO 806314563

Phone: 9708108216

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

1 Associated Practitioners
NPI 1811651243

PHYSICIANASSISTANT

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

10 Historical Events
📍
Updated Practice Location August 28, 2025

Registered at 1800 15TH ST STE 200, GREELEY, CO 806314563 (Tel: 9708108216)

📍
Updated Business Mailing Address August 28, 2025

Registered at 1800 15TH ST STE 200, GREELEY, CO 806314563 (Tel: 9708108216)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) August 28, 2025

Surgery (License #V6355 in TX)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) May 19, 2025

Surgery (License #DR.0075462 in CO)

NPI Profile Active April 07, 2020

NPI status registered as active in NPPES database

📍
Updated Practice Location April 07, 2020

Registered at 7703 FLOYD CURL DR, SAN ANTONIO, TX 782293901 (Tel: 2105677000)

📍
Updated Business Mailing Address April 07, 2020

Registered at 7703 FLOYD CURL DR, SAN ANTONIO, TX 782293901 (Tel: 2105677000)

👤
Provider Name / Credentials Updated April 07, 2020

Recorded as CHARLES MARRIOTT, MD

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) April 07, 2020

Student in an Organized Health Care Education/Training Program

🟢
Initial NPI Registration & Enumeration April 07, 2020

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1871122135
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: April 07, 2020
Last Update: August 28, 2025
Sole Proprietor: No

Mailing Address

1800 15th St Ste 200

Greeley, CO 806314563

Phone: 9708108216

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.