Donald Halsey
NPI 1811917537 · Family Medicine Physician · Arroyo Grande, CA
Donald Halsey is a Family Medicine Physician provider in Arroyo Grande, CA (NPI 1811917537).
Provider details
- NPI number
- 1811917537
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- Yes
- License
- G32152 (CA)
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
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
- 2006-07-19
- Last updated
- 2015-06-11
Frequently asked questions
- What is Donald Halsey's NPI number?
- Donald Halsey's National Provider Identifier (NPI) is 1811917537, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Donald Halsey's specialty?
- Donald Halsey is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Donald Halsey located?
- Donald Halsey's practice location on file with NPPES is 1057 E Grand Ave, Arroyo Grande, CA 93420-2504.
- What is Donald Halsey's phone number?
- The practice phone number listed in the NPPES registry for Donald Halsey is (805) 270-1700.
- Is Donald Halsey's NPI active?
- Yes — Donald Halsey's NPI (1811917537) is active in the NPPES registry as of the last update on 2015-06-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.