Marta Diaz Nater, M.D.
NPI 1922048206 · Internal Medicine Physician · Guaynabo, PR
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marta Diaz Nater, M.D. is a Internal Medicine Physician provider in Guaynabo, PR (NPI 1922048206).
Provider details
- NPI number
- 1922048206
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 13331 (PR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
20 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 · 194 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 1,391 | 313 |
| Gabapentin | 778 | 178 |
| Omeprazole | 743 | 159 |
| Losartan Potassium | 724 | 159 |
| Levothyroxine Sodium | 705 | 161 |
| Levothyroxine Sodiumbrand: Synthroid | 614 | 128 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$307 across 14 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-07
- Last updated
- 2019-07-29
Frequently asked questions
- What is Marta Diaz Nater's NPI number?
- Marta Diaz Nater's National Provider Identifier (NPI) is 1922048206, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marta Diaz Nater's specialty?
- Marta Diaz Nater is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Marta Diaz Nater located?
- Marta Diaz Nater's practice location on file with NPPES is 2 Carr. 177 Atp. 207, Guaynabo, PR 00966.
- What is Marta Diaz Nater's phone number?
- The practice phone number listed in the NPPES registry for Marta Diaz Nater is (787) 766-0430.
- Does Marta Diaz Nater accept Medicare?
- Marta Diaz Nater is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marta Diaz Nater's NPI active?
- Yes — Marta Diaz Nater's NPI (1922048206) is active in the NPPES registry as of the last update on 2019-07-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.