Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Graham J Sellers, MD

Colon & Rectal Surgery Physician in Denver, CO · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1801900089

Verified

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Registry record

Entity type Individual (Type 1)

Name Graham J Sellers

Credential MD

Sex Male

Practice address 1601 E 19th Ave, Suite 6300, Denver, CO, 80218

Phone (303) 839-5669

Fax (303) 839-1216

Enumeration date Aug 18, 2006

Last updated in NPPES Oct 22, 2021

Taxonomy & licenses

208C00000X Colon & Rectal Surgery Physician Allopathic & Osteopathic Physicians · License 37025 (CO) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
01370253	Medicaid	CO	-

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Graham Sellers?

Graham Sellers is registered in NPPES with the primary taxonomy of Colon & Rectal Surgery Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

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Matthew Breeden Obstetrics & Gynecology Physician · Denver, CO NPI 1508864455 Victor Schramm Otolaryngology Physician · Denver, CO NPI 1538161096 Pediatric Otolaryngology, Head and Neck Surgery, P.C. Specialist · Denver, CO NPI 1487644571 Nigel Pashley Specialist · Denver, CO NPI 1780674887 Rocky Mountain Pediatric Surgery, P.C Specialist · Denver, CO NPI 1104817055 Cynthia Kelly Orthopaedic Surgery Physician · Denver, CO NPI 1487635173 Rhonda Haver Surgical Physician Assistant · Denver, CO NPI 1174504948 Ross Wilkins Orthopaedic Surgery Physician · Denver, CO NPI 1629059308

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-10-22.