NPPES file of Aug 9, 2026

Gretchen Rivera Monserrate, M.D.

Child & Adolescent Psychiatry Physician · San Juan, PR

Gretchen Rivera Monserrate, M.D. is a child & adolescent psychiatry physician with a practice address in San Juan, Puerto Rico, and NPI 1225238173, issued on Jul 19, 2007. Check the license (Puerto Rico 18167, 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
1225238173
Name
Gretchen Rivera Monserrate
Credential
M.D.
Primary taxonomy
Child & Adolescent Psychiatry Physician 2084P0804X
License number
18167 PR
Self-reported in NPPES; status is on the state search
Practice location
1789 Carr 21, San Juan, PR 00921
Phone
(787) 479-6889
Enumerated
Jul 19, 2007
Record last updated
Aug 18, 2022
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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Also registered at 1789 Carr 21

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Gustavo Melero Gigante, M.D.Otolaryngology Physician1326049156
  2. Yineli Ortiz Torres, MDEndocrinology, Diabetes & Metabolism Physician1881009793
  3. Hector Perez Arroyo, M.D.Gastroenterology Physician1043218480

Verify Gretchen Rivera Monserrate 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 18167
    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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66% fewer Medicare Part D claims than the average child & adolescent psychiatry physician in 2024

169 Medicare Part D claims for 11 beneficiaries, against an average of 504 among the 3,545 providers of this specialty who prescribed in Part D.

  1. Gretchen Rivera Monserrate169
  2. Specialty average504

Most prescribed

  1. Clonidine Hcl22 claims
  2. Lurasidone Hcl22 claims
  3. Hydroxyzine Pamoate19 claims
  4. Atomoxetine Hcl11 claims
  5. Lorazepam11 claims
  6. Sertraline Hcl11 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: $100.00

1 payment: food and beverage; the largest payer was TG Therapeutics, Inc. The 1,578 providers of this specialty with any payment received $1,427.96 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Gretchen Rivera Monserrate$100.00
  2. Specialty average$1,427.96

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

Gretchen Rivera Monserrate among 82 child & adolescent psychiatry physician records in Puerto Rico

Gretchen Rivera Monserrate, M.D. is one of 82 child & adolescent psychiatry physician records with a practice address in Puerto Rico. 76% 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 39% of them.

  • NPI issued2007 · 39% of these records are older, 32% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileNo · 12% of these records are
  • Record last updated2022 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0804X and a Puerto Rico practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Child & Adolescent Psychiatry Physician providers in Puerto Rico

There are 82 child & adolescent psychiatry physician records in Puerto Rico.

The 8 child & adolescent psychiatry physician records with the nearest ZIP codes

  1. Ana Anguita Oliveras, M.D.San Juan, PR 009211427310077
  2. Lourdes Barreras, M.D.San Juan, PR 009211265513287
  3. Joaquin CollazoSan Juan, PR 009211710434576
  4. Gerardo Collazo Malave, MDSan Juan, PR 009211417422353
  5. Sarah Huertas - Goldman, MDRio Piedras, PR 009211982758124
  6. Karen Martinez-Gonzalez, MDSan Juan, PR 009211205872512
  7. Fransheska Rivera Cordova, MDSan Juan, PR 009211518481233
  8. Angela Del Muro, MDSan Juan, PR 009201821183476

Common questions

What is Gretchen Rivera Monserrate, M.D.'s NPI number?

Gretchen Rivera Monserrate, M.D.'s National Provider Identifier (NPI) is 1225238173, issued on Jul 19, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Gretchen Rivera Monserrate, M.D. located?

The NPPES record lists a practice address at 1789 Carr 21, San Juan, PR, 00921. Phone: (787) 479-6889. Providers update this record themselves, so call before visiting.

How can I verify Gretchen Rivera Monserrate, M.D.'s license?

NPPES lists Puerto Rico license number 18167, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.

How much does Gretchen Rivera Monserrate, M.D. prescribe under Medicare Part D?

In 2024, Gretchen Rivera Monserrate, M.D. had 169 Medicare Part D claims for 11 beneficiaries; the average among child & adolescent psychiatry physician prescribers was 504. 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.