NPPES file of Aug 9, 2026

Anna Maria Di Marco, M.D.

Hematology & Oncology Physician · Ponce, PR

Anna Maria Di Marco, M.D. is a hematology & oncology physician with a practice address in Ponce, Puerto Rico, and NPI 1992981690, issued on Jan 14, 2008. Check the license (Puerto Rico 16950, 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
1992981690
Name
Anna Maria Di Marco
Credential
M.D.
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License number
16950 PR
Self-reported in NPPES; status is on the state search
Practice location
609 Ave Tito Castro Ste 102, Ponce, PR 00716
Phone
(787) 548-8412
Enumerated
Jan 14, 2008
Record last updated
Oct 23, 2014 (not updated in 12 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20130701000532); accepts Medicare assignment
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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Verify Anna Maria Di Marco 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 16950
    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

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3.6 times the Medicare Part D claims of the average hematology & oncology physician in 2024

3,127 Medicare Part D claims for 500 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 22% of claims. 19 claims were for opioids.

  1. Anna Di Marco3,127
  2. Specialty average877

Most prescribed

  1. Anastrozole1,365 claims
  2. Ibrance156 claims
  3. Exemestane98 claims
  4. Ondansetron Hcl72 claims
  5. Dexamethasone Sodium Phosphate70 claims
  6. Diphenhydramine Hcl70 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: $4,566.87

144 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme LLC. 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. Anna Di Marco$4,566.87
  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.

Anna Maria Di Marco among 134 hematology & oncology physician records in Puerto Rico

Anna Maria Di Marco, M.D. 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 2008, is newer than 64% of them.

  • NPI issued2008 · 64% of these records are older, 28% newer
  • In a Medicare fileYes · 91% of these records are
  • In the CMS Doctors and Clinicians fileYes · 73% of these records are
  • Graduated2003 · median 2001 among the 98 with a school on file
  • Record last updated2014 · 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. Miguel Diaz Ferriol, MDPonce, PR 007161245767193
  2. Maryknoll De La Paz, MDPonce, PR 007171740414291
  3. Rolando Jimenez, M.D.Ponce, PR 007171780691238
  4. Roberto Velazquez Torres, MDPonce, PR 007171588622674
  5. Hector Velez Cortes, MDPonce, PR 007171952405425
  6. Yazmin Corujo Sanchez, MDCaguas, PR 007251265564694
  7. Evelyn Fonseca Rivera, M.D.Caguas, PR 007251659398949
  8. Aitsa Jimenez Velez, MDCaguas, PR 007251891731675

Common questions

What is Anna Maria Di Marco, M.D.'s NPI number?

Anna Maria Di Marco, M.D.'s National Provider Identifier (NPI) is 1992981690, issued on Jan 14, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Anna Maria Di Marco, M.D. located?

The NPPES record lists a practice address at 609 Ave Tito Castro Ste 102, Ponce, PR, 00716. Phone: (787) 548-8412. Providers update this record themselves, so call before visiting.

How can I verify Anna Maria Di Marco, M.D.'s license?

NPPES lists Puerto Rico license number 16950, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.

How much does Anna Maria Di Marco, M.D. prescribe under Medicare Part D?

In 2024, Anna Maria Di Marco, M.D. had 3,127 Medicare Part D claims for 500 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.