Maria Sipowicz, MD
NPI 1902954928 · Family Medicine Physician · Anaheim, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maria Sipowicz, MD is a Family Medicine Physician provider in Anaheim, CA (NPI 1902954928).
Provider details
- NPI number
- 1902954928
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A80227 (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
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
- 2007-01-08
- Last updated
- 2008-09-15
Frequently asked questions
- What is Maria Sipowicz's NPI number?
- Maria Sipowicz's National Provider Identifier (NPI) is 1902954928, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maria Sipowicz's specialty?
- Maria Sipowicz is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Maria Sipowicz located?
- Maria Sipowicz's practice location on file with NPPES is 441 N Lakeview Ave, Anaheim, CA 92807-3028.
- What is Maria Sipowicz's phone number?
- The practice phone number listed in the NPPES registry for Maria Sipowicz is (888) 988-2800.
- Does Maria Sipowicz accept Medicare?
- Maria Sipowicz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Maria Sipowicz's NPI active?
- Yes — Maria Sipowicz's NPI (1902954928) is active in the NPPES registry as of the last update on 2008-09-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.