Efrain A. Marcantoni, M.D.
Internal Medicine Physician · Ciales, PR
Efrain A. Marcantoni, M.D. is an internal medicine physician with a practice address in Ciales, Puerto Rico, and NPI 1053387993, issued on Feb 28, 2006. Check the license (Puerto Rico 7712, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Efrain A. Marcantoni
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 7712 PR
Self-reported in NPPES; status is on the state search - Practice location
- 12 Calle Ignacio Fernandez, Ciales, PR 00638
- Phone
- (787) 871-3677
- Enumerated
- Feb 28, 2006
- Record last updated
- Mar 17, 2025
- Fax
- (787) 871-4972
- Medicare enrollment
- Enrolled (PECOS I20131211000386); accepts Medicare assignment
- Medical or professional school
- University Of Puerto Rico School Of Medicine, 1982
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,146 in Puerto Rico → Look up another NPI →
Verify Efrain A. Marcantoni 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 7712Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.7 times the Medicare Part D claims of the average internal medicine physician in 2024
11,714 Medicare Part D claims for 251 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims.
Most prescribed
- Atorvastatin Calcium1,330 claims
- Amlodipine Besylate844 claims
- Lisinopril811 claims
- Metformin Hcl804 claims
- Naproxen550 claims
- Losartan Potassium456 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: $17.12
1 payment: food and beverage; the largest payer was Janssen Pharmaceuticals, Inc. 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.
Efrain A. Marcantoni among 1,146 internal medicine physician records in Puerto Rico
Efrain A. Marcantoni, 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
- Graduated1982 · median 1996 among the 595 with a school on file
- Record last updated2025 · 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).
3 internal medicine physician records list a practice address in Ciales
They are 3 of the 133 NPPES records with a practice address in Ciales, and 1,146 internal medicine physician records in Puerto Rico.
All 1,146 in Puerto Rico → Every provider in Ciales → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Eric Alicea Martinez, M.D.Ciales, PR 006381487623062
- Orlando Sanchez Gonzalez, MDCiales, PR 006381336112895
- Jorge Ayala-Colon, M.D.Sabana Grande, PR 006371760466023
- Edgardo Baez Ayala, M.D.Sabana Grande, PR 006371609967140
- Juan Barrientos-Gayoso, M.D.Sabana Grande, PR 006371972672970
- Juan Colon PadillaSabana Grande, PR 006371821087057
- Luis Deliz-Varela, M.D.Sabana Grande, PR 006371538172341
- Luz Martinez-Martinez, M.D.Sabana Grande, PR 006371265436794
Common questions
What is Efrain A. Marcantoni, M.D.'s NPI number?
Efrain A. Marcantoni, M.D.'s National Provider Identifier (NPI) is 1053387993, issued on Feb 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Efrain A. Marcantoni, M.D. located?
The NPPES record lists a practice address at 12 Calle Ignacio Fernandez, Ciales, PR, 00638. Phone: (787) 871-3677. Providers update this record themselves, so call before visiting.
How can I verify Efrain A. Marcantoni, M.D.'s license?
NPPES lists Puerto Rico license number 7712, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does Efrain A. Marcantoni, M.D. prescribe under Medicare Part D?
In 2024, Efrain A. Marcantoni, M.D. had 11,714 Medicare Part D claims for 251 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.