Mayra Z. Negron-Monserrate, M.D.
General Practice Physician · San Juan, PR
Mayra Z. Negron-Monserrate, M.D. is a general practice physician with a practice address in San Juan, Puerto Rico, and NPI 1952434334, issued on Mar 14, 2007. Check the license (Puerto Rico 9340, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mayra Z. Negron-Monserrate
- Credential
- M.D.
- Primary taxonomy
- General Practice Physician 208D00000X
- License number
- 9340 PR
Self-reported in NPPES; status is on the state search - Practice location
- 32 Calle Mayaguez, San Juan, PR 00917
- Phone
- (787) 504-0115
- Enumerated
- Mar 14, 2007
- Record last updated
- May 9, 2024
- Fax
- (787) 294-9820
- Entity
- Type 1 · individual
8 nearest general practice physician records → All 4,170 in Puerto Rico → Look up another NPI →
Also registered at 32 Calle Mayaguez
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Vanessa Puig MatteiPhysician Assistant1033002027
Verify Mayra Z. Negron-Monserrate 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 9340Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average general practice physician in 2024
412 Medicare Part D claims for 20 beneficiaries, against an average of 3,030 among the 8,395 providers of this specialty who prescribed in Part D.
Most prescribed
- Gabapentin28 claims
- Losartan Potassium27 claims
- Atorvastatin Calcium25 claims
- Famotidine21 claims
- Metoprolol Succinate18 claims
- Metformin Hcl14 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: $125.00
1 payment: food and beverage; the largest payer was Abbvie Inc. The 4,259 providers of this specialty with any payment received $1,273.40 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Mayra Z. Negron-Monserrate among 4,170 general practice physician records in Puerto Rico
Mayra Z. Negron-Monserrate, 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 2007, is newer than 35% of them.
- NPI issued2007 · 35% of these records are older, 51% 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).
622 general practice physician records list a practice address in San Juan
They are 622 of the 8,960 NPPES records with a practice address in San Juan, and 4,170 general practice physician records in Puerto Rico.
All 4,170 in Puerto Rico → Every provider in San Juan → General Practice Physician nationwide →
The 8 general practice physician records with the nearest ZIP codes
- Bienvenida Arocho, MDHato Rey, PR 009171134101355
- Yudit Brito PequeraSan Juan, PR 009171013119304
- Rhina Calderon, MDHato Rey, PR 009171659839017
- Jorge Dominguez, MDSan Juan, PR 009171629049432
- Ivette Falcon, MDSan Juan, PR 009171962552786
- Roberto Fernandez McClin, M.D.San Juan, PR 009171134536550
- Victor Hernandez, MDSan Juan, PR 009171144496555
- Emily Irizarry-Pagan, M.D.San Juan, PR 009171235531526
Common questions
What is Mayra Z. Negron-Monserrate, M.D.'s NPI number?
Mayra Z. Negron-Monserrate, M.D.'s National Provider Identifier (NPI) is 1952434334, issued on Mar 14, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Mayra Z. Negron-Monserrate, M.D. located?
The NPPES record lists a practice address at 32 Calle Mayaguez, San Juan, PR, 00917. Phone: (787) 504-0115. Providers update this record themselves, so call before visiting.
How can I verify Mayra Z. Negron-Monserrate, M.D.'s license?
NPPES lists Puerto Rico license number 9340, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does Mayra Z. Negron-Monserrate, M.D. prescribe under Medicare Part D?
In 2024, Mayra Z. Negron-Monserrate, M.D. had 412 Medicare Part D claims for 20 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.