Quick answers
- Where does Tom G. Matzakos see patients?
- Medicare's clinician data lists 1 practice location in Denver, CO. Call before your visit to confirm the address.
- What is Tom G. Matzakos's specialty?
- Medicare lists Gastroenterology as the primary specialty, and also Internal Medicine.
- Does Tom G. Matzakos accept Medicare assignment?
- Yes. Medicare's clinician data says Tom G. Matzakos accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Tom G. Matzakos?
- (303) 338-4545, as listed in official Medicare / NPI Registry data.
- What is Tom G. Matzakos's NPI number?
- 1619004629. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Tom G. Matzakos is enrolled with Medicare (CMS data updated 2026-10-02).
- 2045 N Franklin St, Kaiser Permanente Franklin MedicalDenver, CO 80205 (303) 338‑4545
Group practices
Medicare enrollment lists Tom G. Matzakos as a member of this group (CMS data updated 2026-10-02).
- Colorado Permanente Medical Group PC1,327 clinicians in the group
Specialties
- Gastroenterologyprimary
- Internal Medicinealso
Other gastroenterologists in Denver
Clinicians with the same Medicare primary specialty in Denver, CO — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Colorado School Of Medicine, Denver |
| Graduation year | 1998 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1619004629 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians