Donald Alpiner, DO
NPI 1811086952 · Surgery Physician · Upland, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Donald Alpiner, DO is a Surgery Physician provider in Upland, CA (NPI 1811086952).
Provider details
- NPI number
- 1811086952
- Entity type
- Individual
- Primary specialty
- Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 20A4758 (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
- 2006-10-12
- Last updated
- 2019-06-20
Frequently asked questions
- What is Donald Alpiner's NPI number?
- Donald Alpiner's National Provider Identifier (NPI) is 1811086952, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Donald Alpiner's specialty?
- Donald Alpiner is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Donald Alpiner located?
- Donald Alpiner's practice location on file with NPPES is 999 San Bernardino Rd, Upland, CA 91786-4920.
- What is Donald Alpiner's phone number?
- The practice phone number listed in the NPPES registry for Donald Alpiner is (909) 239-1621.
- Does Donald Alpiner accept Medicare?
- Donald Alpiner is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Donald Alpiner's NPI active?
- Yes — Donald Alpiner's NPI (1811086952) is active in the NPPES registry as of the last update on 2019-06-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.