Thomas Walker, M.D.
NPI 1275570053 · Pediatric Gastroenterology Physician · Aurora, CO
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thomas Walker, M.D. is a Pediatric Gastroenterology Physician provider in Aurora, CO (NPI 1275570053).
Provider details
- NPI number
- 1275570053
- Entity type
- Individual
- Primary specialty
- Pediatric Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 0057373 (CO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Additional practice locations (2)
- 300 Longwood AveChildren'S Hosp-Gi & NutritionBoston, MA 02115-5724Phone: (617) 355-7911
- 801 N 29th StBillings, MT 59101-0905Phone: (406) 238-2500
Registry dates
- Enumerated
- 2006-06-01
- Last updated
- 2018-09-11
Frequently asked questions
- What is Thomas Walker's NPI number?
- Thomas Walker's National Provider Identifier (NPI) is 1275570053, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Walker's specialty?
- Thomas Walker is listed in the NPPES registry with a primary specialty of Pediatric Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Walker located?
- Thomas Walker's practice location on file with NPPES is 13123 E 16th Ave # B290, Aurora, CO 80045-7106.
- What is Thomas Walker's phone number?
- The practice phone number listed in the NPPES registry for Thomas Walker is (720) 777-6669.
- Does Thomas Walker accept Medicare?
- Thomas Walker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thomas Walker's NPI active?
- Yes — Thomas Walker's NPI (1275570053) is active in the NPPES registry as of the last update on 2018-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.