David Harrison, M.D.
NPI 1346265436 · Hematology & Oncology Physician · San Luis Obispo, CA
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Harrison, M.D. is a Hematology & Oncology Physician provider in San Luis Obispo, CA (NPI 1346265436).
Provider details
- NPI number
- 1346265436
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- C37637 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
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
- 2006-07-12
- Last updated
- 2022-12-27
- Certified
- 2022-12-27
Frequently asked questions
- What is David Harrison's NPI number?
- David Harrison's National Provider Identifier (NPI) is 1346265436, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Harrison's specialty?
- David Harrison is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is David Harrison located?
- David Harrison's practice location on file with NPPES is 715 Tank Farm Rd Ste C, San Luis Obispo, CA 93401-7068.
- What is David Harrison's phone number?
- The practice phone number listed in the NPPES registry for David Harrison is (805) 543-5577.
- Does David Harrison accept Medicare?
- David Harrison is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Harrison's NPI active?
- Yes — David Harrison's NPI (1346265436) is active in the NPPES registry as of the last update on 2022-12-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.