Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1407310253 Individual Practitioner Male Practitioner

Dr. Demian Emil Grau , MD

General Practice • Corozal, PR

Professional Overview & Biography Verified Profile Summary

Dr. Demian Grau, MD is a registered healthcare professional specializing in General Practice in Corozal, PR. Practice services are available at CARR 891 KM 15.1 under active NPI credentials.

Practice Location & Contact Primary Location

Practice Address

Carr 891 Km 15.1

Corozal, PR 00783

Telephone 7878592560
Associated Practice Facility / Clinic

Specialty Benchmarks & Practice Insights

Comparative analytics for General Practice in Corozal, PR

Active Practitioner
Practitioner Clinical Experience
Active
City Avg: 30.7 Yrs
State Avg: 25.4 Yrs
Regional Practice Density
30 Specialists

Practicing in Corozal, PR (4449 Statewide)

Telehealth Adoption Rate
0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
67.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Medical Specialties & State Licenses

CMS Verified: 2026-06-04
General Practice Primary Specialty

NUCC Taxonomy Code: 208D00000X

State License PR 24013

A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions.

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

9 Associated Practitioners
Miriam Ruiz Rapale

Health Educator

NPI 1003286832
NPI 1134504814

Doctor of Medicine (M.D.)

NPI 1316048119

Doctor of Medicine (M.D.)

Mariangelie Marrero , MSW

Social Worker - Clinical

NPI 1316328743

Master of Social Work

NPI 1326055187

Doctor of Medicine (M.D.)

NPI 1629636279

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

12 Historical Events
📍
Updated Practice Location June 04, 2026

Registered at CARR 891 KM 15.1, COROZAL, PR 00783 (Tel: 7878592560)

📍
Updated Business Mailing Address June 04, 2026

Registered at 1047 CALLE 9 SE, SAN JUAN, PR 009213124 (Tel: 7876908895)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) July 17, 2024

General Practice (License #24013 in PR)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) March 21, 2023

General Practice (License #16297-I in PR)

📍
Updated Practice Location June 02, 2022

Registered at HOSP FEDERICO TRILLA, AVE 65 DE INFANTERIA KM 8.3, CAROLINA, PR 00984 (Tel: 7877571800)

👤
Provider Name / Credentials Updated June 02, 2022

Recorded as DEMIAN GRAU, MD

NPI Profile Active January 25, 2019

NPI status registered as active in NPPES database

📍
Updated Practice Location January 25, 2019

Registered at 1047 CALLE 9 SE, REPT METROPOLITANO, SAN JUAN, PR 00921 (Tel: 7876908895)

📍
Updated Business Mailing Address January 25, 2019

Registered at 1047 CALLE 9 SE, REPT METROPOLITANO, SAN JUAN, PR 00921 (Tel: 7876908895)

👤
Provider Name / Credentials Updated January 25, 2019

Recorded as DEMIAN GRAU

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) January 25, 2019

Student in an Organized Health Care Education/Training Program

🟢
Initial NPI Registration & Enumeration January 25, 2019

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1407310253
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: January 25, 2019
Last Update: June 04, 2026
Sole Proprietor: Yes

Mailing Address

1047 Calle 9 Se

San Juan, PR 009213124

Phone: 7876908895

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.