Thomas Aambrose Dowgin , MD

Gastroenterology and Internal Medicine

Centers For Gastroenterology
8225 W 20th St
Greeley, CO 80634


Dr. Dowgin sees patients at our Greeley Office. He attended Gettysburg College, Gettysburg, Pennsylvania for his undergraduate degree. Dr. Dowgin received his medical degree from New Jersey Medical School, Newark, New Jersey in 1984. He finished his Internship at The National Naval Medical Center, Bethesda Maryland in 1985 and completed Internal Medicine Residency in 1988, and GI Fellowship in 1992, all at Bethesda. Dr Dowgin is a Fellow of the American College of Physicians, a member of the American Gastroenterological Association, as well as the American Society for Gastrointestinal Endoscopy and the American College of Gastroenterology. Dr. Dowgin was on active duty in the U.S. Navy from 1984-1995. Prior to leaving the Navy, Commander Dowgin was gastroenterology consultant to the Office of the Attending Physician at the U.S. Capitol in Washington, D.C.

Gender: Male

Years in Practice: 37 Years

Languages Spoken: English and Spanish

Education & Training

Medical School: Rutgers New Jersey Medical School

Graduation Date: in 1984

Specialties & Hospital Affiliations

Hospital Affiliations:

  • Poudre Valley Hospital

Specialties: Gastroenterology and Internal Medicine

Health Insurance and Affiliations

  • Aetna Choice POS II
  • Aetna HMO
  • Aetna Managed Choice POS Open Access
  • Aetna Signature Administrators PPO
  • Aetna Whole Health Colorado Front Range
  • Anthem CO Blue Priority HMO
  • Anthem CO Blue Priority PPO
  • Anthem CO Bronze Pathway X HMO
  • Anthem CO Gold Pathway HMO
  • Anthem CO HMO
  • Anthem CO Pathway
  • Anthem CO Silver Pathway X HMO
  • Anthem PPO
  • BCBS Blue Card PPO
  • CIGNA LocalPlus
  • CIGNA Open Access Plus
  • First Health PPO
  • Humana Choice POS
  • Humana National POS
  • Kaiser Colorado
  • Kaiser Permanente
  • Rocky Mountain Good Health and Vista HMO PPO
  • Rocky Mountain Monument PPO - Tier 2
  • Rocky Mountain Summit Group
  • UHC Choice Plus POS
  • UHC Navigate HMO
  • UHC Navigate POS
  • UHC Nexus Open Access
  • UHC Options PPO

Dowgin's Office Information

Centers For Gastroenterology
8225 W 20th St
Greeley, CO 80634

Fax: (970) 020-7189
Accepting New Patients: Yes
Medicare Accepted: Yes
Medicaid Accepted: No

Office Hours:

Mon7:00 AM-3:30 PM
Tue7:00 AM-3:30 PM
Wed7:00 AM-3:30 PM
Thu7:00 AM-3:30 PM
Fri7:00 AM-3:30 PM

Doctor Dowgin's Other Office Information

Center For Gastroenterology
7251 W 20th St Unit J
Greeley, CO 80634

Website:Not available
Accepting New Patients: No
Medicare Accepted:No
Medicaid Accepted:No

Office Hours:


Harmony Surgery Center Llc
2127 E Harmony Rd Ste 200
Fort Collins, CO 80528
(970) 297-6300

Fax:(970) 029-7632
Accepting New Patients: Yes
Medicare Accepted:Yes
Medicaid Accepted:No

Office Hours:

Mon6:00 AM-4:30 PM
Tue6:00 AM-4:30 PM
Wed6:00 AM-4:30 PM
Thu6:00 AM-4:30 PM
Fri6:00 AM-4:30 PM