Gary Harkins, M.D.
NPI 1942204375 · Hematology & Oncology Physician · San Luis Obispo, CA
Gary Harkins, M.D. is a Hematology & Oncology Physician provider in San Luis Obispo, CA (NPI 1942204375).
Provider details
- NPI number
- 1942204375
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G25721 (CA)
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
21 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
- 2005-06-13
- Last updated
- 2007-07-09
Frequently asked questions
- What is Gary Harkins's NPI number?
- Gary Harkins's National Provider Identifier (NPI) is 1942204375, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gary Harkins's specialty?
- Gary Harkins is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Gary Harkins located?
- Gary Harkins's practice location on file with NPPES is 1941 Johnson Ave, San Luis Obispo, CA 93401-4169.
- What is Gary Harkins's phone number?
- The practice phone number listed in the NPPES registry for Gary Harkins is (805) 543-5577.
- Is Gary Harkins's NPI active?
- Yes — Gary Harkins's NPI (1942204375) is active in the NPPES registry as of the last update on 2007-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.