Gabriel Montalvo-Castro, M.D.
General Practice Physician · Bayamon, PR
Gabriel Montalvo-Castro, M.D. is a general practice physician with a practice address in Bayamon, Puerto Rico, and NPI 1851704589, issued on Jun 10, 2014. Check the license (Puerto Rico 19155, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gabriel Montalvo-Castro
- Credential
- M.D.
- Primary taxonomy
- General Practice Physician 208D00000X
- License numbers
- 19155 PR
ME141853 FL
316085 NY
Self-reported in NPPES; status is on the state search - Practice location
- 66 Calle Santa Cruz, Bayamon, PR 00961
- Phone
- (787) 798-8486
- Enumerated
- Jun 10, 2014
- Record last updated
- Feb 21, 2024
- Fax
- (787) 740-7170
- Entity
- Type 1 · individual
8 nearest general practice physician records → All 4,170 in Puerto Rico → Look up another NPI →
Also registered at 66 Calle Santa Cruz
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Lillian Diaz, M.A., CCC-SLPSpeech-Language Pathologist1235393547
- Mario Espinosa Garcia, MDPulmonary Disease Physician1083653141
- Judy Fernandez-Gallardo, M.D.Psychiatry Physician1205059573
Verify Gabriel Montalvo-Castro in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Puerto Rico board licenses this profession
Search for license 19155Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average general practice physician in 2024
299 Medicare Part D claims for 223 beneficiaries, against an average of 3,030 among the 8,395 providers of this specialty who prescribed in Part D.
Most prescribed
- Azithromycin33 claims
- Methylprednisolone27 claims
- Prednisone19 claims
- Diclofenac Potassium15 claims
- Cephalexin14 claims
- Dexamethasone13 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.
Gabriel Montalvo-Castro among 4,170 general practice physician records in Puerto Rico
Gabriel Montalvo-Castro, 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 2014, is newer than 60% of them.
- NPI issued2014 · 60% of these records are older, 38% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileNo · 29% of these records are
- Record last updated2024 · 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).
273 general practice physician records list a practice address in Bayamon
They are 273 of the 2,958 NPPES records with a practice address in Bayamon, and 4,170 general practice physician records in Puerto Rico.
All 4,170 in Puerto Rico → Every provider in Bayamon → General Practice Physician nationwide →
The 8 general practice physician records with the nearest ZIP codes
- Rafael Cepeda Lara, MDBayamon, PR 009611790779395
- Gilmarie Cumba Llavona, M.D.Bayamon, PR 009611902854409
- Wanda Davila AponteBayamon, PR 009611639146202
- Gladys Deliz-Figueroa, M.D.Bayamon, PR 009611578557435
- Yesmin Fadul Paulino, MDBayamon, PR 009611104810373
- Manuel FerrerisBayamon, PR 009611447221148
- Maxuel Genao Encarnacion, M.D.Bayamon, PR 009611366438434
- Martin Martino, M.D.Bayamon, PR 009611679568547
Common questions
What is Gabriel Montalvo-Castro, M.D.'s NPI number?
Gabriel Montalvo-Castro, M.D.'s National Provider Identifier (NPI) is 1851704589, issued on Jun 10, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Gabriel Montalvo-Castro, M.D. located?
The NPPES record lists a practice address at 66 Calle Santa Cruz, Bayamon, PR, 00961. Phone: (787) 798-8486. Providers update this record themselves, so call before visiting.
How can I verify Gabriel Montalvo-Castro, M.D.'s license?
NPPES lists Puerto Rico license number 19155, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does Gabriel Montalvo-Castro, M.D. prescribe under Medicare Part D?
In 2024, Gabriel Montalvo-Castro, M.D. had 299 Medicare Part D claims for 223 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.