Grace Lozinski MD Inc
NPI 1811865892 · Internal Medicine Physician · Irvine, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Grace Lozinski MD Inc is a Internal Medicine Physician organization in Irvine, CA (NPI 1811865892).
Provider details
- NPI number
- 1811865892
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Grace Lozinski, Owner(949) 262-9700
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
- 2025-10-29
- Last updated
- 2026-03-03
- Certified
- 2026-03-03
Frequently asked questions
- What is Grace Lozinski MD Inc's NPI number?
- Grace Lozinski MD Inc's National Provider Identifier (NPI) is 1811865892, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Grace Lozinski MD Inc?
- Grace Lozinski MD Inc is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Grace Lozinski MD Inc located?
- Grace Lozinski MD Inc's practice location on file with NPPES is 4950 Barranca Pkwy Ste 207, Irvine, CA 92604-8648.
- What is Grace Lozinski MD Inc's phone number?
- The practice phone number listed in the NPPES registry for Grace Lozinski MD Inc is (949) 262-9700.
- Does Grace Lozinski MD Inc accept Medicare?
- Grace Lozinski MD Inc is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Grace Lozinski MD Inc?
- The authorized official listed on Grace Lozinski MD Inc's NPPES record is Grace Lozinski, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Grace Lozinski MD Inc's NPI active?
- Yes — Grace Lozinski MD Inc's NPI (1811865892) is active in the NPPES registry as of the last update on 2026-03-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.