Demian Grau, MD
NPI 1407310253 · General Practice Physician · Corozal, PR
Enrolled with Medicare as Practitioner - General Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Demian Grau, MD is a General Practice Physician provider in Corozal, PR (NPI 1407310253).
Provider details
- NPI number
- 1407310253
- Entity type
- Individual
- Primary specialty
- General Practice PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 24013 (PR)
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
7 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.
Mailing address
Registry dates
- Enumerated
- 2019-01-25
- Last updated
- 2026-06-04
- Certified
- 2026-06-04
Frequently asked questions
- What is Demian Grau's NPI number?
- Demian Grau's National Provider Identifier (NPI) is 1407310253, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Demian Grau's specialty?
- Demian Grau is listed in the NPPES registry with a primary specialty of General Practice Physician (Allopathic & Osteopathic Physicians).
- Where is Demian Grau located?
- Demian Grau's practice location on file with NPPES is Carr 891 Km 15.1, Corozal, PR 00783.
- What is Demian Grau's phone number?
- The practice phone number listed in the NPPES registry for Demian Grau is (787) 859-2560.
- Does Demian Grau accept Medicare?
- Demian Grau is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Demian Grau's NPI active?
- Yes — Demian Grau's NPI (1407310253) is active in the NPPES registry as of the last update on 2026-06-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.