NPPES file of Aug 9, 2026

Osvaldo Castro Montalvo, MD

Family Medicine Physician · Arecibo, PR

Osvaldo Castro Montalvo, MD is a family medicine physician with a practice address in Arecibo, Puerto Rico, and NPI 1104846468, issued on Jul 20, 2006. Check the license (Puerto Rico 16283, 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
1104846468
Name
Osvaldo Castro Montalvo
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
16283 PR
Self-reported in NPPES; status is on the state search
Practice location
51 Calle Andres Garcia, Arecibo, PR 00612
Phone
(787) 650-3522
Enumerated
Jul 20, 2006
Record last updated
Oct 31, 2025
Fax
(787) 879-4691
Medicare enrollment
Enrolled (PECOS I20060306000500); 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.
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Verify Osvaldo Castro Montalvo 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 16283
    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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2.7 times the Medicare Part D claims of the average family medicine physician in 2024

9,408 Medicare Part D claims for 279 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 64 claims were for opioids.

  1. Osvaldo Castro Montalvo9,408
  2. Specialty average3,544

Most prescribed

  1. Gabapentin672 claims
  2. Montelukast Sodium479 claims
  3. Duloxetine Hcl418 claims
  4. Pantoprazole Sodium379 claims
  5. Famotidine368 claims
  6. Atorvastatin Calcium367 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: $50.69

1 payment: food and beverage; the largest payer was Revance Therapeutics, Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Osvaldo Castro Montalvo$50.69
  2. Specialty average$902.55

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

Osvaldo Castro Montalvo among 604 family medicine physician records in Puerto Rico

Osvaldo Castro Montalvo, MD is one of 604 family medicine physician records with a practice address in Puerto Rico. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 14% of them.

  • NPI issued2006 · 14% of these records are older, 43% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 39% of these records are
  • Graduated2003 · median 1995 among the 234 with a school on file
  • Record last updated2025 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Puerto Rico practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

17 family medicine physician records list a practice address in Arecibo

They are 17 of the 976 NPPES records with a practice address in Arecibo, and 604 family medicine physician records in Puerto Rico.

The 8 family medicine physician records with the nearest ZIP codes

  1. Julia BonillaArecibo, PR 006121871697045
  2. Francisco Colmenares, M.D.Arecibo, PR 006121194713412
  3. Victor Font, M.DArecibo, PR 006121073650842
  4. Nancy Grajales, MDArecibo, PR 006121922850569
  5. Marcos Hernandez Hernandez, M.D.Arecibo, PR 006121558663203
  6. Juan Martino, M.D.Arecibo, PR 006121912914391
  7. Ada Miranda-Ruiz, M.D.Arecibo, PR 006121154357234
  8. Nelson Narvaez Oms, M.D.Arecibo, PR 006121326242538

Common questions

What is Osvaldo Castro Montalvo, MD's NPI number?

Osvaldo Castro Montalvo, MD's National Provider Identifier (NPI) is 1104846468, issued on Jul 20, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Osvaldo Castro Montalvo, MD located?

The NPPES record lists a practice address at 51 Calle Andres Garcia, Arecibo, PR, 00612. Phone: (787) 650-3522. Providers update this record themselves, so call before visiting.

How can I verify Osvaldo Castro Montalvo, MD's license?

NPPES lists Puerto Rico license number 16283, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.

How much does Osvaldo Castro Montalvo, MD prescribe under Medicare Part D?

In 2024, Osvaldo Castro Montalvo, MD had 9,408 Medicare Part D claims for 279 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.