Greas Medical Corporation
NPI 1043011711 · Dermatopathology (Pathology) Physician · Loma Linda, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Greas Medical Corporation is a Dermatopathology (Pathology) Physician organization in Loma Linda, CA (NPI 1043011711).
Provider details
- NPI number
- 1043011711
- Entity type
- Organization
- Primary specialty
- Dermatopathology (Pathology) PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Michael Greas, Owner/Ceo(818) 406-6439
Specialties & taxonomies
Allopathic & Osteopathic Physicians
- Hematology (Pathology) Physician207ZH0000X
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
- Dermatology Physician207N00000X
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
1 yr 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
- 2025-03-20
- Last updated
- 2025-03-20
- Certified
- 2025-03-17
Frequently asked questions
- What is Greas Medical Corporation's NPI number?
- Greas Medical Corporation's National Provider Identifier (NPI) is 1043011711, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Greas Medical Corporation?
- Greas Medical Corporation is classified in the NPPES registry as Dermatopathology (Pathology) Physician (Allopathic & Osteopathic Physicians).
- Where is Greas Medical Corporation located?
- Greas Medical Corporation's practice location on file with NPPES is 10898 Bryn Mawr Ave, Loma Linda, CA 92354-4201.
- What is Greas Medical Corporation's phone number?
- The practice phone number listed in the NPPES registry for Greas Medical Corporation is (818) 406-6439.
- Does Greas Medical Corporation accept Medicare?
- Greas Medical Corporation 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 Greas Medical Corporation?
- The authorized official listed on Greas Medical Corporation's NPPES record is Michael Greas, Owner/Ceo. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Greas Medical Corporation's NPI active?
- Yes — Greas Medical Corporation's NPI (1043011711) is active in the NPPES registry as of the last update on 2025-03-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.