Douglas Harrison, MD
NPI 1821293176 · Pediatric Hematology & Oncology Physician · Houston, TX
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Douglas Harrison, MD is a Pediatric Hematology & Oncology Physician provider in Houston, TX (NPI 1821293176).
Provider details
- NPI number
- 1821293176
- Entity type
- Individual
- Primary specialty
- Pediatric Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- Q1413 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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
Registry dates
- Enumerated
- 2007-06-18
- Last updated
- 2017-01-11
Frequently asked questions
- What is Douglas Harrison's NPI number?
- Douglas Harrison's National Provider Identifier (NPI) is 1821293176, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Douglas Harrison's specialty?
- Douglas Harrison is listed in the NPPES registry with a primary specialty of Pediatric Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Douglas Harrison located?
- Douglas Harrison's practice location on file with NPPES is 1515 Holcombe Blvd, Houston, TX 77030-4009.
- What is Douglas Harrison's phone number?
- The practice phone number listed in the NPPES registry for Douglas Harrison is (713) 792-6161.
- Does Douglas Harrison accept Medicare?
- Douglas Harrison is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Douglas Harrison's NPI active?
- Yes — Douglas Harrison's NPI (1821293176) is active in the NPPES registry as of the last update on 2017-01-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.