NPPES file of Aug 9, 2026

Lilliana Marie Serrano Arroyo

Rheumatology Physician · Ponce, PR

Lilliana Marie Serrano Arroyo is a rheumatology physician with a practice address in Ponce, Puerto Rico, and NPI 1851934129, issued on Oct 19, 2019. Check the license (Puerto Rico 023261, 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
1851934129
Name
Lilliana Marie Serrano Arroyo
Primary taxonomy
Rheumatology Physician 207RR0500X
License number
023261 PR
Self-reported in NPPES; status is on the state search
Practice location
909 Ave Tito Castro Ste 503, Ponce, PR 00716
Phone
(787) 407-8741
Enumerated
Oct 19, 2019
Record last updated
Jul 29, 2026
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Lilliana Marie Serrano Arroyo 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 023261
    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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99% fewer Medicare Part D claims than the average rheumatology physician in 2024

26 Medicare Part D claims, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D.

  1. Lilliana Serrano Arroyo26
  2. Specialty average1,978

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: $361.94

3 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 4,486 providers of this specialty with any payment received $8,538.33 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Lilliana Serrano Arroyo$361.94
  2. Specialty average$8,538.33

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Lilliana Marie Serrano Arroyo among 87 rheumatology physician records in Puerto Rico

Lilliana Marie Serrano Arroyo is one of 87 rheumatology 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 2019, is newer than 99% of them.

  • NPI issued2019 · 99% of these records are older, 0% newer
  • In a Medicare fileYes · 91% of these records are
  • In the CMS Doctors and Clinicians fileNo · 79% of these records are
  • Record last updated2026 · 69% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a Puerto Rico practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Rheumatology Physician providers in Puerto Rico

There are 87 rheumatology physician records in Puerto Rico.

The 8 rheumatology physician records with the nearest ZIP codes

  1. Rafael Rios Rivera, M.D.Ponce, PR 007161366891590
  2. Ileana Rivera-Burgos, MDPonce, PR 007161003131996
  3. Osvaldo Antommattei, MDPonce, PR 007171821063074
  4. Roberto Leon-Perez, MDPonce, PR 007171932197639
  5. Maria Del Carmen Ballesteros Ramos, MDPonce, PR 007131841251683
  6. Elizabeth Ramirez-Diaz, MDNaranjito, PR 007191235471186
  7. Lillian Bezares, M.D.Caguas, PR 007251861547960
  8. Leyda Diaz-Correa, M.D.Caguas, PR 007251144453317

Common questions

What is Lilliana Marie Serrano Arroyo's NPI number?

Lilliana Marie Serrano Arroyo's National Provider Identifier (NPI) is 1851934129, issued on Oct 19, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Lilliana Marie Serrano Arroyo located?

The NPPES record lists a practice address at 909 Ave Tito Castro Ste 503, Ponce, PR, 00716. Phone: (787) 407-8741. Providers update this record themselves, so call before visiting.

How can I verify Lilliana Marie Serrano Arroyo's license?

NPPES lists Puerto Rico license number 023261, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.

How much does Lilliana Marie Serrano Arroyo prescribe under Medicare Part D?

In 2024, Lilliana Marie Serrano Arroyo had 26 Medicare Part D claims; 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.

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.