Nadja Diaz Baez, MD
Internal Medicine Physician · Ponce, PR
Nadja Diaz Baez, MD is an internal medicine physician with a practice address in Ponce, Puerto Rico, and NPI 1568554483, issued on Sep 28, 2006. Check the license (Puerto Rico 12997, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Nadja Diaz Baez
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 12997 PR
Self-reported in NPPES; status is on the state search - Practice location
- 7813 Calle Nazaret, Ponce, PR 00717
- Phone
- (787) 840-1053
- Enumerated
- Sep 28, 2006
- Record last updated
- Nov 13, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (787) 305-1410
- Medicare enrollment
- Enrolled (PECOS I20050829000112); accepts Medicare assignment
- Medical or professional school
- Ponce School Of Medicine, 1996
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,146 in Puerto Rico → Look up another NPI →
Also registered at 7813 Calle Nazaret
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nelson Diaz Baez, M.D.General Practice Physician1558457218
- Soria Diaz Baez, MDGeneral Practice Physician1508957630
Verify Nadja Diaz Baez 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 12997Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.7 times the Medicare Part D claims of the average internal medicine physician in 2024
8,509 Medicare Part D claims for 386 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims. 48 claims were for opioids.
Most prescribed
- Atorvastatin Calcium379 claims
- Omeprazole359 claims
- Gabapentin323 claims
- Famotidine291 claims
- Losartan Potassium224 claims
- Lisinopril222 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: $406.53
15 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.
Nadja Diaz Baez among 1,146 internal medicine physician records in Puerto Rico
Nadja Diaz Baez, MD 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
- Graduated1996 · median 1996 among the 595 with a school on file
- Record last updated2015 · 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).
116 internal medicine physician records list a practice address in Ponce
They are 116 of the 3,338 NPPES records with a practice address in Ponce, and 1,146 internal medicine physician records in Puerto Rico.
All 1,146 in Puerto Rico → Every provider in Ponce → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Pedro Amador, MDPonce, PR 007171407851306
- Jorge Anglero Alfaro, M.D.Ponce, PR 007171285694505
- Jose Batista, MD.Ponce, PR 007171437195278
- Ricardo Blondet Vissepo, M.D.Ponce, PR 007171679594337
- Walter Feliciano-Velez, MDPonce, PR 007171700837796
- Victor Fraticelli, M.D.Ponce, PR 007171255303038
- Gil Hermida Perez, MDPonce, PR 007171205837564
- Sergio Lopez Del Pozo, MDPonce, PR 007171679686091
Common questions
What is Nadja Diaz Baez, MD's NPI number?
Nadja Diaz Baez, MD's National Provider Identifier (NPI) is 1568554483, issued on Sep 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Nadja Diaz Baez, MD located?
The NPPES record lists a practice address at 7813 Calle Nazaret, Ponce, PR, 00717. Phone: (787) 840-1053. Providers update this record themselves, so call before visiting.
How can I verify Nadja Diaz Baez, MD's license?
NPPES lists Puerto Rico license number 12997, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does Nadja Diaz Baez, MD prescribe under Medicare Part D?
In 2024, Nadja Diaz Baez, MD had 8,509 Medicare Part D claims for 386 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.