NPPES file of Aug 9, 2026

Carlos A. Pantojas, M.D.

Rheumatology Physician · San Juan, PR

Carlos A. Pantojas, M.D. is a rheumatology physician with a practice address in San Juan, Puerto Rico, and NPI 1144299074, issued on Mar 14, 2006. Check the license (Puerto Rico 9017, 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
1144299074
Name
Carlos A. Pantojas
Credential
M.D.
Primary taxonomy
Rheumatology Physician 207RR0500X
License number
9017 PR
Self-reported in NPPES; status is on the state search
Practice location
1801 Ave Ponce DE Leon, San Juan, PR 00909
Phone
(787) 999-0440
Enumerated
Mar 14, 2006
Record last updated
Apr 10, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(787) 999-0442
Medicare enrollment
Enrolled (PECOS I20110531000218); accepts Medicare assignment
Medical or professional school
University Central Del Caribe Escuela De Medicina, 1984
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 1801 Ave Ponce DE Leon

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

  1. Alicia Bigay-Ramos, LCSWClinical Social Worker1023538501
  2. Lynnette Burgos, LCDANutrition Education Nutritionist1124076799
  3. Juan Deniz, MDClinical Neurophysiology Physician1205811692
  4. Juan Flores-Gonzalez, M.D.Pulmonary Disease Physician1891008314
  5. Hamid Galib, MDGastroenterology Physician1508825159
  6. Maria Garcia, PHDPsychologist1053683482

Verify Carlos A. Pantojas 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 9017    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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4.3 times the Medicare Part D claims of the average rheumatology physician in 2024

8,424 Medicare Part D claims for 1,198 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. 576 claims were for opioids.

  1. Carlos Pantojas8,424
  2. Specialty average1,978

Most prescribed

  1. Gabapentin1,403 claims
  2. Tizanidine Hcl1,066 claims
  3. Pregabalin817 claims
  4. Methotrexate405 claims
  5. Tramadol Hcl383 claims
  6. Baclofen353 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.

Rheumatology Physician providers in Puerto Rico

There are 87 rheumatology physician records in Puerto Rico.

All 87 in Puerto Rico → Every provider in San Juan →

Other rheumatology physician records in Puerto Rico

  1. Paloma Alejandro, M.D.San Juan, PR1578820577
  2. Roberto Alvarez, M.D.Aibonito, PR1225071467
  3. Osvaldo Antommattei, MDPonce, PR1821063074
  4. Oscar Arill, M.D.San Juan, PR1871540724
  5. Michael Babilonia Roman, M.D.Mayaguez, PR1720088057
  6. Laisha Baez Negron, MDCarolina, PR1336660448
  7. Maria Del Carmen Ballesteros Ramos, MDPonce, PR1841251683
  8. Livia Bermudez, M.D.Fajardo, PR1659477800
  9. Lillian Bezares, M.D.Caguas, PR1861547960
  10. Phillip Bonneaux, MDSan Juan, PR1629066006

Common questions

What is Carlos A. Pantojas, M.D.'s NPI number?

Carlos A. Pantojas, M.D.'s National Provider Identifier (NPI) is 1144299074, issued on Mar 14, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Carlos A. Pantojas, M.D. located?

The NPPES record lists a practice address at 1801 Ave Ponce DE Leon, San Juan, PR, 00909. Phone: (787) 999-0440. Providers update this record themselves, so call before visiting.

How can I verify Carlos A. Pantojas, M.D.'s license?

NPPES lists Puerto Rico license number 9017, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.

How much does Carlos A. Pantojas, M.D. prescribe under Medicare Part D?

In 2024, Carlos A. Pantojas, M.D. had 8,424 Medicare Part D claims for 1,198 beneficiaries; the average among rheumatology physician prescribers was 1,978. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.