NPPES file of Aug 9, 2026

Jonathan Romero Casillas, M.D.

Undersea and Hyperbaric Medicine (Emergency Medicine) Physician · Carolina, PR

Jonathan Romero Casillas, M.D. is an undersea and hyperbaric medicine (emergency medicine) physician with a practice address in Carolina, Puerto Rico, and NPI 1346783420, issued on Nov 22, 2016. Check the license (Puerto Rico 19513, 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
1346783420
Name
Jonathan Romero Casillas
Credential
M.D.
Primary taxonomy
Undersea and Hyperbaric Medicine (Emergency Medicine) Physician 207PE0005X
License number
19513 PR
Self-reported in NPPES; status is on the state search
Practice location
Carr 185 KM15.8 BO Cedros, Carolina, PR 00987
Phone
(787) 918-2348
Enumerated
Nov 22, 2016
Record last updated
Apr 6, 2024
Medicare enrollment
Enrolled (PECOS I20231207000182); accepts Medicare assignment
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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Verify Jonathan Romero Casillas 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 19513
    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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95% fewer Medicare Part D claims than the average undersea and hyperbaric medicine (emergency medicine) physician in 2024

17 Medicare Part D claims, against an average of 374 among the 112 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Jonathan Romero Casillas17
  2. Specialty average374

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: $80.92

1 payment: food and beverage; the largest payer was Genentech USA, Inc. The 66 providers of this specialty with any payment received $444.01 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Jonathan Romero Casillas$80.92
  2. Specialty average$444.01

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. Ajl Medical Services LLCCarolina, PR

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

Undersea and Hyperbaric Medicine (Emergency Medicine) Physician providers in Puerto Rico

There are 2 undersea and hyperbaric medicine (emergency medicine) physician records in Puerto Rico.

The 1 undersea and hyperbaric medicine (emergency medicine) physician record with the nearest ZIP codes

  1. Ivan Rosario, MDIsabela, PR 006621720044829

Common questions

What is Jonathan Romero Casillas, M.D.'s NPI number?

Jonathan Romero Casillas, M.D.'s National Provider Identifier (NPI) is 1346783420, issued on Nov 22, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Jonathan Romero Casillas, M.D. located?

The NPPES record lists a practice address at Carr 185 KM15.8 BO Cedros, Carolina, PR, 00987. Phone: (787) 918-2348. Providers update this record themselves, so call before visiting.

How can I verify Jonathan Romero Casillas, M.D.'s license?

NPPES lists Puerto Rico license number 19513, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.

How much does Jonathan Romero Casillas, M.D. prescribe under Medicare Part D?

In 2024, Jonathan Romero Casillas, M.D. had 17 Medicare Part D claims; the average among undersea and hyperbaric medicine (emergency medicine) physician prescribers was 374. 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.