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

Gregory Gerritt Marino, DO

Individual provider Hematology & Oncology Physician · NPI 1023054285

Gregory Gerritt Marino, DO is a Hematology & Oncology Physician in Sheridan, Wyoming. Works from 3 locations. Licensed in Alaska and Wyoming.

Licensed in
AK, WY
In the registry since
2006
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Practice location Address checks out

1401 W 5th St
Sheridan, WY 82801-2705
Phone: (307) 674-6022
Fax: (307) 674-5405
Show map & directions

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

Additional practice locations (2)

  • 4315 Diplomacy Dr, Anchorage, AK 99508-5926 — (907) 729-3971
  • 4315 Diplomacy Dr, Anchorage, AK 99508-5926 — (907) 729-3971

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence 9050A (WY)
Hematology & Oncology Physician Taxonomy 207RH0003X · Licence 4548 (AK)

Record details

NPI number1023054285
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJune 22, 2006
Last updated in NPPESMarch 17, 2018
Mailing address1401 W 5th St, Sheridan, WY 82801-2705

Other providers in Sheridan