Stacy Petersen Medical Group, P.C.
NPI 1194677955 · Ophthalmology Physician · Riverside, CA
Stacy Petersen Medical Group, P.C. is a Ophthalmology Physician organization in Riverside, CA (NPI 1194677955).
Provider details
- NPI number
- 1194677955
- Entity type
- Organization
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Stacy Difley, Secretary(949) 991-4172
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
Under 1 yr in 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
- 2026-02-12
- Last updated
- 2026-02-12
- Certified
- 2026-02-10
Frequently asked questions
- What is Stacy Petersen Medical Group, P.C.'s NPI number?
- Stacy Petersen Medical Group, P.C.'s National Provider Identifier (NPI) is 1194677955, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Stacy Petersen Medical Group, P.C.?
- Stacy Petersen Medical Group, P.C. is classified in the NPPES registry as Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Stacy Petersen Medical Group, P.C. located?
- Stacy Petersen Medical Group, P.C.'s practice location on file with NPPES is 4445 Magnolia Ave, Riverside, CA 92501.
- What is Stacy Petersen Medical Group, P.C.'s phone number?
- The practice phone number listed in the NPPES registry for Stacy Petersen Medical Group, P.C. is (949) 991-4172.
- Who is the authorized official for Stacy Petersen Medical Group, P.C.?
- The authorized official listed on Stacy Petersen Medical Group, P.C.'s NPPES record is Stacy Difley, Secretary. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Stacy Petersen Medical Group, P.C.'s NPI active?
- Yes — Stacy Petersen Medical Group, P.C.'s NPI (1194677955) is active in the NPPES registry as of the last update on 2026-02-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.