Marta Diaz Nater, M.D.
Internal Medicine Physician · Guaynabo, PR
Marta Diaz Nater, M.D. is an internal medicine physician with a practice address in Guaynabo, Puerto Rico, and NPI 1922048206, issued on Jun 7, 2006. Check the license (Puerto Rico 13331, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Marta Diaz Nater
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 13331 PR
Self-reported in NPPES; status is on the state search - Practice location
- 2 Carr. 177 Atp. 207, Guaynabo, PR 00966
- Phone
- (787) 766-0430
- Enumerated
- Jun 7, 2006
- Record last updated
- Jul 29, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20040911000102); accepts Medicare assignment
- Medical or professional school
- University Central Del Caribe Escuela De Medicina, 1997
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,146 in Puerto Rico → Look up another NPI →
Verify Marta Diaz Nater in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Puerto Rico board licenses this profession
Search for license 13331Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
6.8 times the Medicare Part D claims of the average internal medicine physician in 2024
21,469 Medicare Part D claims for 663 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 171 claims were for opioids.
Most prescribed
- Atorvastatin Calcium1,391 claims
- Gabapentin778 claims
- Omeprazole743 claims
- Losartan Potassium724 claims
- Levothyroxine Sodium705 claims
- Synthroid614 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $306.77
14 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Marta Diaz Nater among 1,146 internal medicine physician records in Puerto Rico
Marta Diaz Nater, M.D. is one of 1,146 internal medicine physician records with a practice address in Puerto Rico. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 13% of them.
- NPI issued2006 · 13% of these records are older, 52% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 52% of these records are
- Graduated1997 · median 1996 among the 595 with a school on file
- Record last updated2019 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Puerto Rico practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
28 internal medicine physician records list a practice address in Guaynabo
They are 28 of the 2,143 NPPES records with a practice address in Guaynabo, and 1,146 internal medicine physician records in Puerto Rico.
All 1,146 in Puerto Rico → Every provider in Guaynabo → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Eilyn De Jesus Gonzalez, M.D.Guaynabo, PR 009661497763551
- Julie Rodriguez-Poventud, M.D.Guaynabo, PR 009661710019146
- Ramon Ruiz, M.D.Guaynabo, PR 009661932184645
- Luis Sanchez, MDGuaynabo, PR 009661366485054
- Claudia Villate Montejo, MDGuaynabo, PR 009661780622530
- Roldan Cabret, MDGuaynabo, PR 009681336170521
- Federico Gregory-Gonzalez, M.D.Guaynabo, PR 009681376675843
- Jose IrizarryGuaynabo, PR 009681720617152
Common questions
What is Marta Diaz Nater, M.D.'s NPI number?
Marta Diaz Nater, M.D.'s National Provider Identifier (NPI) is 1922048206, issued on Jun 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Marta Diaz Nater, M.D. located?
The NPPES record lists a practice address at 2 Carr. 177 Atp. 207, Guaynabo, PR, 00966. Phone: (787) 766-0430. Providers update this record themselves, so call before visiting.
How can I verify Marta Diaz Nater, M.D.'s license?
NPPES lists Puerto Rico license number 13331, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does Marta Diaz Nater, M.D. prescribe under Medicare Part D?
In 2024, Marta Diaz Nater, M.D. had 21,469 Medicare Part D claims for 663 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.