Efrain Marcantoni, M.D.
Internal Medicine Physician · Ciales, PR
Efrain 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 with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Efrain Marcantoni
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- Practice location
- 12 Calle Ignacio Fernandez, Ciales, PR 00638
- Phone
- (787) 871-3677
- Enumerated
- Feb 28, 2006
- Entity
- Type 1 · individual
Verify Efrain Marcantoni in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Puerto Rico board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
4.2 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 2,785 among the 127,794 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, mostly food and beverage; the largest payer was Janssen Pharmaceuticals, Inc. The 65,274 providers of this specialty with any payment received $2,536.66 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.
2 internal medicine physician records list a Ciales practice address
They are 2 of the 133 NPPES records with a Ciales practice address, and 1,357 internal medicine physician records in Puerto Rico.
All 2 in Ciales → All 1,357 in Puerto Rico → Every provider in Ciales →
Other internal medicine physician records in Puerto Rico
- Jamil Abou El Hossen Carmona, MDRio Piedras, PR1700575495
- Jamil Abouelhossen, MDFajardo, PR1356347538
- James Abrams, MDSan Juan, PR1861721789
- Fernando Abreu GonzalezSan Juan, PR1437100930
- Jumana Abuomar, M.D.Canovanas, PR1104028307
- Lourdes Acevedo, M.D.Aguada, PR1487751574
- Luis Acevedo Aquino, MDAguadilla, PR1477128999
- Sara Acevedo Armaiz, MDCarolina, PR1194731711
- Luis Acevedo Rodriguez, M.D..Guaynabo, PR1326149121
- Luis Acevedo Soto, MDMayaguez, PR1851084412
Common questions
What is Efrain Marcantoni, M.D.'s NPI number?
Efrain 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 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 Marcantoni, M.D.'s license?
Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does Efrain Marcantoni, M.D. prescribe under Medicare Part D?
In 2024, Efrain Marcantoni, M.D. had 11,714 Medicare Part D claims for 251 beneficiaries; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.