Carmen Marizor Nieves, M.D.
Family Medicine Physician · Rio Piedras, PR
Carmen Marizor Nieves, M.D. is a family medicine physician with a practice address in Rio Piedras, Puerto Rico, and NPI 1255352746, issued on Jul 21, 2006. Check the license (Puerto Rico 11981, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Carmen Marizor Nieves
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 11981 PR
Self-reported in NPPES; status is on the state search - Practice location
- 10 Calle Casia, Rio Piedras, PR 00921
- Phone
- (787) 641-7582
- Enumerated
- Jul 21, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 604 in Puerto Rico → Look up another NPI →
Also registered at 10 Calle Casia
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Myrna Abrams, RN.ET.CNS.Enterostomal Therapy Registered Nurse1366452286
- Zaira Benabe, MED./OTR/L.Occupational Therapist1265451439
- Sandra Lopez-Huertas, R.N.Registered Nurse1568610368
- Carmen Rivera, OTRHospitalist Physician1700081056
- Laura Rodriguez, RN, MSNAdministrator Registered Nurse1245251735
- Marilyn Rodriguez-Perez, BSPhysical Therapist1295765626
Verify Carmen Marizor Nieves 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 11981Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average family medicine physician in 2024
55 Medicare Part D claims, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
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: $67.50
1 payment: food and beverage; the largest payer was Genzyme Corporation. The 55,478 providers of this specialty with any payment received $902.55 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.
Carmen Marizor Nieves among 604 family medicine physician records in Puerto Rico
Carmen Marizor Nieves, M.D. is one of 604 family 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 14% of them.
- NPI issued2006 · 14% of these records are older, 43% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 39% of these records are
- Record last updated2007 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Puerto Rico practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
4 family medicine physician records list a practice address in Rio Piedras
They are 4 of the 372 NPPES records with a practice address in Rio Piedras, and 604 family medicine physician records in Puerto Rico.
All 604 in Puerto Rico → Every provider in Rio Piedras → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Nestor Cabrera, MDSan Juan, PR 009211952323107
- Jose Carrasquillo, MDSan Juan, PR 009211629045612
- Jorge Corzo, MDSan Juan, PR 009211790787000
- Sonia Fernandez, M.D.San Juan, PR 009211487689584
- Enrique Fernandez-Perez, MDSan Juan, PR 009211831117191
- Jose Forina, MDSan Juan, PR 009211487624615
- Mayra Gonzalez-Bayron, MDSan Juan, PR 009211144248725
- Felipe Hernandez, M.D.San Juan, PR 009211790861698
Common questions
What is Carmen Marizor Nieves, M.D.'s NPI number?
Carmen Marizor Nieves, M.D.'s National Provider Identifier (NPI) is 1255352746, issued on Jul 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Carmen Marizor Nieves, M.D. located?
The NPPES record lists a practice address at 10 Calle Casia, Rio Piedras, PR, 00921. Phone: (787) 641-7582. Providers update this record themselves, so call before visiting.
How can I verify Carmen Marizor Nieves, M.D.'s license?
NPPES lists Puerto Rico license number 11981, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does Carmen Marizor Nieves, M.D. prescribe under Medicare Part D?
In 2024, Carmen Marizor Nieves, M.D. had 55 Medicare Part D claims; the average among family medicine physician prescribers was 3,544. 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.