NPPES file of Aug 9, 2026

Dalianie Nieves, MD

Hematology & Oncology Physician · San Juan, PR

Dalianie Nieves, MD is a hematology & oncology physician with a practice address in San Juan, Puerto Rico, and NPI 1073044517, issued on Mar 26, 2017. Check the license (Puerto Rico 21292, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1073044517
Name
Dalianie Nieves
Credential
MD
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License number
21292 PR
Self-reported in NPPES; status is on the state search
Practice location
10 Calle Casia, San Juan, PR 00921
Phone
(787) 641-7582
Enumerated
Mar 26, 2017
Record last updated
Jul 3, 2023
Medicare enrollment
Enrolled (PECOS I20230912004104); accepts Medicare assignment
Medical or professional school
Ponce School Of Medicine, 2017
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 10 Calle Casia

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Rosemarie AcevedoRegistered Dietitian1174984306
  2. Brian Acevedo Fuentes, MDStudent in an Organized Health Care Education/Training Program1770422941
  3. Sonia Adrover, MSWClinical Social Worker1710912324
  4. Miguel Agosto EncarnacionPharmacy Technician1891653259
  5. Jose Alamo, D.M.D.General Practice Dentistry1235143322
  6. Karlya Alejandro, PSY.DClinical Psychologist1780956276

Verify Dalianie Nieves in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Puerto Rico board licenses this profession
    Search for license 21292
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Puerto Rico license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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1% fewer Medicare Part D claims than the average hematology & oncology physician in 2024

866 Medicare Part D claims for 148 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims. 63 claims were for opioids.

  1. Dalianie Nieves866
  2. Specialty average877

Most prescribed

  1. Anastrozole147 claims
  2. Ondansetron Hcl37 claims
  3. Dexamethasone36 claims
  4. Prednisone36 claims
  5. Erleada29 claims
  6. Oxycodone-Acetaminophen28 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: $4,737.79

197 payments; by number, the most common kind was food and beverage; the largest payer was E.R. Squibb & Sons, L.L.C. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Dalianie Nieves$4,737.79
  2. Specialty average$7,481.41

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Hospital Espanol Auxilio Mutuo DE Puerto Rico, Inc.San Juan, PR

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Dalianie Nieves among 134 hematology & oncology physician records in Puerto Rico

Dalianie Nieves, MD is one of 134 hematology & oncology physician records with a practice address in Puerto Rico. 91% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 95% of them.

  • NPI issued2017 · 95% of these records are older, 2% newer
  • In a Medicare fileYes · 91% of these records are
  • In the CMS Doctors and Clinicians fileYes · 73% of these records are
  • Graduated2017 · median 2001 among the 98 with a school on file
  • Record last updated2023 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Puerto Rico practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hematology & Oncology Physician providers in Puerto Rico

There are 134 hematology & oncology physician records in Puerto Rico.

The 8 hematology & oncology physician records with the nearest ZIP codes

  1. Natalia Almodovar Arbelo, MDSan Juan, PR 009211114381902
  2. Norma Arroyo, M.D.San Juan, PR 009211750391454
  3. William Caceres, MDSan Juan, PR 009211518910801
  4. Elizabeth Calderon-Alicea, MDSan Juan, PR 009211285883520
  5. Miguel Colon Donate, MDSan Juan, PR 009211609262781
  6. Armando Garcia, M.D.San Juan, PR 009211346347515
  7. Awilda Maldonado-Mercado, MDSan Juan, PR 009211316930431
  8. Natalia Mestres FrancoSan Juan, PR 009211013416056

Common questions

What is Dalianie Nieves, MD's NPI number?

Dalianie Nieves, MD's National Provider Identifier (NPI) is 1073044517, issued on Mar 26, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Dalianie Nieves, MD located?

The NPPES record lists a practice address at 10 Calle Casia, San Juan, PR, 00921. Phone: (787) 641-7582. Providers update this record themselves, so call before visiting.

How can I verify Dalianie Nieves, MD's license?

NPPES lists Puerto Rico license number 21292, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.

How much does Dalianie Nieves, MD prescribe under Medicare Part D?

In 2024, Dalianie Nieves, MD had 866 Medicare Part D claims for 148 beneficiaries; the average among hematology & oncology physician prescribers was 877. 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.