IndividualActive
Stephen Mc Donnell, MD
NPI 1922167527 · Family Medicine Physician · Fontana, CA
Stephen Mc Donnell, MD is a Family Medicine Physician provider in Fontana, CA (NPI 1922167527).
Provider details
- NPI number
- 1922167527
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G43898 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(90/100 index)
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
9961 Sierra Ave
Fontana, CA 92335-6720
Phone: (909) 427-3910
Street-level locationGet directions
Mailing address
9961 Sierra Ave
Fontana, CA 92335-6720
Registry dates
- Enumerated
- 2006-12-08
- Last updated
- 2008-09-23
Frequently asked questions
- What is Stephen Mc Donnell's NPI number?
- Stephen Mc Donnell's National Provider Identifier (NPI) is 1922167527, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Mc Donnell's specialty?
- Stephen Mc Donnell is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Stephen Mc Donnell located?
- Stephen Mc Donnell's practice location on file with NPPES is 9961 Sierra Ave, Fontana, CA 92335-6720.
- What is Stephen Mc Donnell's phone number?
- The practice phone number listed in the NPPES registry for Stephen Mc Donnell is (909) 427-3910.
- Is Stephen Mc Donnell's NPI active?
- Yes — Stephen Mc Donnell's NPI (1922167527) is active in the NPPES registry as of the last update on 2008-09-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.