Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Graham J Sellers, MD

Individual provider Colon & Rectal Surgery Physician · NPI 1801900089

Graham J Sellers, MD is registered under Colorectal Surgery (Proctology) in Denver, Colorado. Qualified in 1992, 34 years ago. Practices with North Shore-Lij Medical PC, a 6,350-clinician group. Licensed in Colorado.

Years since qualifying
34
Licensed in
CO
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

1601 E 19th Ave Ste 6300
Denver, CO 80218-1216
Phone: (303) 839-5669
Fax: (303) 839-1216
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Colon & Rectal Surgery Physician (primary) Taxonomy 208C00000X · Licence 37025 (CO)

Record details

NPI number1801900089
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 18, 2006
Last updated in NPPESOctober 22, 2021
Certification dateOctober 22, 2021

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCOLORECTAL SURGERY (PROCTOLOGY)
Medical schoolOTHER
Graduated 1992 (34 years in practice)
Group practice North Shore-Lij Medical Pc — 6350 clinicians
Accepts Medicare assignment Not indicated
Practice locations2 on file with Medicare

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Colonoscopy 16 times · 45th percentile
Removal of tissue 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients103
Services billed 261 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • Northern Westchester Hospital Hospital · Mount Kisco, NY · listed as Northern Westchester Hospital Assoc
  • Phelps Hospital Hospital · Sleepy Hollow, NY · listed as Phelps Memorial Hospital
  • North Shore Home Care Chha Home health agency · Westbury, NY

Colleagues at North Shore-Lij Medical PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 6350 clinicians in the practice; 12 are shown here.

Other providers in Denver