Iris Grau, MD
NPI 1841393881 · Family Medicine Physician · San Lorenzo, PR
Enrolled with Medicare as Practitioner - General Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Iris Grau, MD is a Family Medicine Physician provider in San Lorenzo, PR (NPI 1841393881).
Provider details
- NPI number
- 1841393881
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 12595 (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
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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 108 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 534 | 163 |
| Famotidine | 520 | 138 |
| Gabapentin | 440 | 129 |
| Losartan Potassium | 352 | 103 |
| Lisinopril | 304 | 92 |
| Simvastatin | 290 | 85 |
| Alendronate Sodium | 260 | 61 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-06
- Last updated
- 2007-07-08
Frequently asked questions
- What is Iris Grau's NPI number?
- Iris Grau's National Provider Identifier (NPI) is 1841393881, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Iris Grau's specialty?
- Iris Grau is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Iris Grau located?
- Iris Grau's practice location on file with NPPES is Calle Munoz Rivera, San Lorenzo, PR 00754.
- What is Iris Grau's phone number?
- The practice phone number listed in the NPPES registry for Iris Grau is (787) 736-3655.
- Does Iris Grau accept Medicare?
- Iris Grau is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Iris Grau's NPI active?
- Yes — Iris Grau's NPI (1841393881) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.