Doctor profile · Federal record

Dr. William Grassette Melendez, MD

General Practice Physician (CMS: General Practice) · Toa Baja, PR

  • NPI 1972515856
  • 40 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
3474 Paseo Camaron, 3Ra Seccion Levittown
Toa Baja, PR 009493634
(787) 795-2521
fax (787) 795-2289
Mailing address
229 Calle del Parque, Cond. Parque Central Apt. 904
San Juan, PR 009123223

Credentials & registration

NPPES · NUCC
NPI registered
August 2006 — 20 yrs on file
Profile last updated
April 11, 2018
Year of graduation
1986 — 40 yrs since
Specialty taxonomy
208D00000X — NUCC code
State license (1)
Puerto Rico #10816

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1972515856. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$24
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
PBG PUERTO RICO LLC 1 $23.53

By nature of payment

Food and Beverage
$24

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
4,056
Patients
1,298
Total drug cost
$76,562
Drug Type Claims Patients Total cost
Simvastatin Generic 493 174 $5,024
Hydrochlorothiazide Generic 479 142 $2,956
Lisinopril Generic 337 114 $3,632
Omeprazole Generic 309 69 $2,158
Naproxen Generic 297 117 $2,414
Metformin Hcl Generic 283 87 $2,839
Gabapentin Generic 273 71 $3,827
Metoprolol Succinate Generic 251 80 $7,934
Alendronate Sodium Generic 224 95 $3,458
Synthroid (Levothyroxine Sodium) Brand 213 57 $21,649

Frequently asked questions

Auto-generated from federal data
What is Dr. William Grassette Melendez's medical specialty?
Dr. William Grassette Melendez practices General Practice Physician in Toa Baja, PR.
Where does Dr. William Grassette Melendez practice?
Dr. William Grassette Melendez practices at 3474 Paseo Camaron, Toa Baja, PR 009493634. Office phone: 7877952521.
What is Dr. William Grassette Melendez's NPI?
Dr. William Grassette Melendez's National Provider Identifier (NPI) is 1972515856, issued by NPPES.
Does Dr. William Grassette Melendez accept Medicare assignment?
Dr. William Grassette Melendez does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.