Dr. William Grassette Melendez, MD
- Medicare services, 2020
- 42
- Part D claims, 2024
- 7,704
- Industry payments
- $5,545
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- Hf-16 Lizzie Graham Septima Seccion Levittown, Toa Baja, PR 00949-3634
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Csm Servicios De Cuidado - Toa Baja (Hf 16 Lizzie Graham)
Primary care practice · Toa Baja, Puerto Rico
Find Dr. Grassette Melendez's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. William Grassette Melendez is a general practice physician in Lake Mary, Florida
Dr. Grassette Melendez practices at Csm Servicios De Cuidado - Toa Baja (Hf 16 Lizzie Graham) in Toa Baja, Puerto Rico.
Dr. Grassette Melendez's NPI, 1972515856, was assigned on August 12, 2006. Dr. Grassette Melendez holds Puerto Rico license 10816.
- NPI
- 1972515856NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6204922974
- NPI enumeration date
- August 12, 2006
- NPI status
- Active
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 66
- Medical school graduation
- 1986
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. William Grassette Melendez practices in Toa Baja and Lake Mary
Dr. Grassette Melendez's primary practice is Csm Servicios De Cuidado - Toa Baja (Hf 16 Lizzie Graham), at Hf-16 Lizzie Graham Septima Seccion Levittown, Toa Baja, PR 00949-3634. The NPI Registry lists Dr. Grassette Melendez's practice address as 3200 Lake Emma Rd, Lake Mary, FL 32746.
- Csm Servicios De Cuidado - Toa Baja (Hf 16 Lizzie Graham)PrimaryHf-16 Lizzie Graham Septima Seccion Levittown, Toa Baja, PR 00949-3634
- NPI Registry address3200 Lake Emma Rd, Lake Mary, FL 32746 · Seminole CountyPhone(787) 795-2521
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. William Grassette Melendez is affiliated with 1 site of care and 1 medical group
Dr. Grassette Melendez's primary practice is Csm Servicios De Cuidado - Toa Baja (Hf 16 Lizzie Graham) in Toa Baja, Puerto Rico. The medical group on file is Centro de Servicios Medicos de Levittown, Inc.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. William Grassette Melendez's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Grassette Melendez practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Csm Servicios De Cuidado - Toa Baja (Hf 16 Lizzie Graham) | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. William Grassette Melendez is one of 1,706 general practice physicians in Florida
General practice is Dr. Grassette Melendez's primary specialty in the NPI Registry, under taxonomy code 208D00000X. Dr. Grassette Melendez is licensed in Puerto Rico.
Specialties and state licenses
- General practice, Puerto RicoPrimary
General practice physicians near Dr. Grassette Melendez
Counts of general practice physicians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. William Grassette Melendez billed Medicare for 42 services in 2020
CMS data shows 42 Medicare services from Dr. Grassette Melendez across 1 procedure code in 2020, all of them office visits. Medicare paid $1,544 for them. Every service was in an office.
Dr. Grassette Melendez's Medicare services by type, 2019 to 2020
- 2019
- 2020
- Office and hospital visits
- 2019: 672020: 4237%
Dr. Grassette Melendez compared with the Florida median for general practice physicians, 2020
- Dr. Grassette Melendez
- Florida median
- Medicare services
- 42vs 10259% below
- Part D claims
- 7,079vs 1,5974.4 times
Medians across 1,557 general practice physicians in Florida with Dmand AI profiles that report each measure.
Dr. Grassette Melendez's most billed Medicare procedure codes, 2020
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. William Grassette Melendez's patients have a median age of 64
Across all payers, Dmand AI patient panel data puts Dr. Grassette Melendez's median patient age at 64, with 0% women.
Dr. Grassette Melendez's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
Patient panel by sex, all payers
- Women0%
- Men100%
Source: Dmand AI Patient Panel Data
Dr. William Grassette Melendez wrote 7,704 Medicare Part D claims in 2024
In 2024, Dr. Grassette Melendez wrote 7,704 Medicare Part D claims for 408 patients. 89% of them were for generic drugs. CMS names the drug for 7,079 of them, across 100 drugs with 11 or more claims each, at $221,341 in total drug cost. In 2023, CMS named 7,381 claims across 102 drugs.
Dr. Grassette Melendez's Part D claims by kind of drug, 2024
- Generic6,820 claims89%
- Brand-name809 claims11%
- Other75 claims1%
Dr. Grassette Melendez's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Grassette Melendez's Part D claims, 2024
- Opioids0%28 of 7,704 claims
- Antibiotics3%198 of 7,704 claims
- Antipsychotics, patients 65 and over1%49 of 7,704 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 7,3812024: 7,0794%
Drugs named by CMS: 100 in 2024, 102 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Dr. William Grassette Melendez received $5,545 in industry payments from 2016 to 2025
CMS Open Payments shows 81 general payments to Dr. Grassette Melendez from 13 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Pfizer Inc. paid the most, $1,052.
General payments to Dr. Grassette Melendez by program year, 2016 to 2025
General payments to Dr. Grassette Melendez by kind, 2016 to 2025
- Food and beverage$5,545100%
- Education$00%
Companies that paid Dr. Grassette Melendez the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. William Grassette Melendez's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. William Grassette Melendez
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What is Dr. William Grassette Melendez's NPI number?
Dr. William Grassette Melendez's NPI number is 1972515856. It was assigned on August 12, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. William Grassette Melendez?
Dr. William Grassette Melendez is a general practice physician in Lake Mary, Florida. The primary specialty in the NPI Registry is General Practice Physician (taxonomy code 208D00000X).
Where does Dr. William Grassette Melendez practice?
Dr. Grassette Melendez practices at Hf-16 Lizzie Graham Septima Seccion Levittown, Toa Baja, PR 00949-3634. Dr. Grassette Melendez also practices at 3200 Lake Emma Rd, Lake Mary, FL 32746. Dr. Grassette Melendez's primary practice is Csm Servicios De Cuidado - Toa Baja (Hf 16 Lizzie Graham) in Toa Baja, Puerto Rico.
What is Dr. William Grassette Melendez's medical license number?
Dr. Grassette Melendez holds Puerto Rico license 10816.
What medical group is Dr. William Grassette Melendez part of?
Dr. Grassette Melendez is linked to Centro de Servicios Medicos de Levittown, Inc.
Does Dr. William Grassette Melendez accept Medicare?
Yes. CMS data shows Dr. Grassette Melendez billed Medicare for 42 services in 2020.
What services does Dr. William Grassette Melendez bill to Medicare?
In 2020, Dr. Grassette Melendez's most billed Medicare services were office visit, established patient (99213).
What drugs does Dr. William Grassette Melendez prescribe most?
In 2024 Medicare Part D data, Dr. Grassette Melendez's most prescribed drugs by claims were Simvastatin, Hydrochlorothiazide and Lisinopril.
Has Dr. William Grassette Melendez received payments from drug or device companies?
CMS Open Payments shows $5,545 in general payments to Dr. Grassette Melendez from 13 companies from 2016 to 2025. The largest total came from Pfizer Inc.
How long has Dr. William Grassette Melendez been practicing?
Dr. Grassette Melendez graduated from medical school in 1986, 40 years ago.
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