NPPES file of Aug 9, 2026

Xiomara Lopez, M.D.

General Practice Physician · Isabela, PR

Xiomara Lopez, M.D. is a general practice physician with a practice address in Isabela, Puerto Rico, and NPI 1629404363, issued on Sep 25, 2013. Check the license (Puerto Rico 18581, 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
1629404363
Name
Xiomara Lopez
Credential
M.D.
Primary taxonomy
General Practice Physician 208D00000X
License number
18581 PR
Self-reported in NPPES; status is on the state search
Practice location
35A Calle Cofre, Isabela, PR 00662
Phone
(787) 245-0900
Enumerated
Sep 25, 2013
Record last updated
Sep 25, 2013 (not updated in 13 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20180807002606); accepts Medicare assignment
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.
Download card Updates feed

Verify Xiomara Lopez 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 18581
    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

60% fewer Medicare Part D claims than the average general practice physician in 2024

1,209 Medicare Part D claims for 59 beneficiaries, against an average of 3,030 among the 8,395 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 27 claims were for opioids.

  1. Xiomara Lopez1,209
  2. Specialty average3,030

Most prescribed

  1. Lisinopril94 claims
  2. Simvastatin84 claims
  3. Synthroid80 claims
  4. Losartan Potassium68 claims
  5. Atorvastatin Calcium46 claims
  6. Amlodipine Besylate37 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.

Xiomara Lopez among 4,170 general practice physician records in Puerto Rico

Xiomara Lopez, M.D. is one of 4,170 general practice physician records with a practice address in Puerto Rico. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 60% of them.

  • NPI issued2013 · 60% of these records are older, 40% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 29% of these records are
  • Graduated2009 · median 2004 among the 1,228 with a school on file
  • Record last updated2013 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208D00000X and a Puerto Rico practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

48 general practice physician records list a practice address in Isabela

They are 48 of the 397 NPPES records with a practice address in Isabela, and 4,170 general practice physician records in Puerto Rico.

The 8 general practice physician records with the nearest ZIP codes

  1. Aracelio Camacho Vega, MDIsabela, PR 006621578574174
  2. David Kalantar, M.D.Isabela, PR 006621093755332
  3. Juan Liceaga Sanchez, M.D.Isabela, PR 006621689600678
  4. Juan Melon-Velez, MDIsabela, PR 006621730278714
  5. Yanila Mendez-Pietri, M.D.Isabela, PR 006621821181140
  6. Mayra Del Carmen Mora, MDIsabela, PR 006621467433615
  7. Luis Nieves Gonzalez, M.D.Isabela, PR 006621215976782
  8. Olga Padilla, MDIsabela, PR 006621750300802

Common questions

What is Xiomara Lopez, M.D.'s NPI number?

Xiomara Lopez, M.D.'s National Provider Identifier (NPI) is 1629404363, issued on Sep 25, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Xiomara Lopez, M.D. located?

The NPPES record lists a practice address at 35A Calle Cofre, Isabela, PR, 00662. Phone: (787) 245-0900. Providers update this record themselves, so call before visiting.

How can I verify Xiomara Lopez, M.D.'s license?

NPPES lists Puerto Rico license number 18581, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.

How much does Xiomara Lopez, M.D. prescribe under Medicare Part D?

In 2024, Xiomara Lopez, M.D. had 1,209 Medicare Part D claims for 59 beneficiaries; the average among general practice physician prescribers was 3,030. 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.