Active NPI
Henry Xavier Nieves Diaz, MD
- Addiction Medicine (Family Medicine) Physician
- Manati, PR
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Addiction Medicine (Family Medicine) Physician
- License
- 21671
- Practice address
- Manati Medical Center
Urb. Atenas, Calle Hernandez Carrion
Manati, PR 00674 - Phone
- (787) 621-3700
- NPI assigned
- Mar 21, 2018
- Sex
- Male
- Sole proprietor
- Yes
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Addiction Medicine (Family Medicine) Physician | 207QA0401X | 21671 | PR | Primary |
| General Practice Physician | 208D00000X | 21671 | PR |
Addresses
Primary practice location
Manati Medical Center
Urb. Atenas, Calle Hernandez Carrion
Manati, PR 00674
Mailing address
V3 Calle Higuero
Quintas de Villamar
Dorado, PR 00646
Phone (787) 478-4377
Other practice location 1
Vega Alta Community Health
Carr #2 Km 3.1
Vega Alta, PR 00692
Phone (787) 883-6718
Other practice location 2
Dorado Community Health
Carr #698 Bo. Mameyal
Dorado, PR 00646
Phone (787) 796-3330
Other practice location 3
Universidad Central Del Caribe
300 Ave Laurel, Urb Santa Juanita
Bayamon, PR 00956
Phone (787) 798-3001 ext. 2707
Other practice location 4
#100 Urb. Mariolga Bo. Turabo
Caguas, PR 00725
Phone (787) 961-4562
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in PR
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 1
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| I20251124002763 | PR | Practitioner - Addiction Medicine | 0446742704 | Practice locations: Caguas, PR |
Care Compare profile
Medicare Care Compare- Specialty
- Addiction Medicine
- Education
- University Central del Caribe Escuela de Medicina, 2025
- Medicare assignment
- May accept Medicare assignment
Practice addresses (Care Compare)
100 Ave Luis Munoz Marin
Caguas, PR 00725
100 Ave Luis Munoz Marin
Caguas, PR 00725-6184
Phone (787) 478-4377
V3 Calle Higuero
Dorado, PR 00646
Hospital & facility affiliations
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 21671 | PR | MD | Addiction Medicine (Family Medicine) Physician |
Hospital & facility affiliations 1
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Caguas, PR
- NPI 1467234039
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1521590400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1751241600000",
"number": "1588168850",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "V3 CALLE HIGUERO",
"address_2": "QUINTAS DE VILLAMAR",
"city": "DORADO",
"state": "PR",
"postal_code": "00646",
"telephone_number": "787-478-4377"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "MANATI MEDICAL CENTER",
"address_2": "URB. ATENAS, CALLE HERNANDEZ CARRION",
"city": "MANATI",
"state": "PR",
"postal_code": "00674",
"telephone_number": "787-621-3700"
}
],
"practiceLocations": [
{
"address_1": "Vega Alta Community Health",
"address_2": "Carr #2 Km 3.1",
"address_purpose": "LOCATION",
"city": "Vega Alta",
"state": "PR",
"postal_code": "00692",
"country_code": "US",
"telephone_number": "787-883-6718",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "Dorado Community Health",
"address_2": "Carr #698 Bo. Mameyal",
"address_purpose": "LOCATION",
"city": "Dorado",
"state": "PR",
"postal_code": "00646",
"country_code": "US",
"telephone_number": "787-796-3330",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "Universidad Central Del Caribe",
"address_2": "300 Ave Laurel, Urb Santa Juanita",
"address_purpose": "LOCATION",
"city": "Bayamon",
"state": "PR",
"postal_code": "00956",
"country_code": "US",
"telephone_number": "787-798-3001 x2707",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "#100 Urb. Mariolga Bo. Turabo",
"address_purpose": "LOCATION",
"city": "Caguas",
"state": "PR",
"postal_code": "00725",
"country_code": "US",
"telephone_number": "787-961-4562",
"fax_number": "787-961-4562",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "NIEVES DIAZ",
"first_name": "HENRY",
"middle_name": "XAVIER",
"name_prefix": "Dr.",
"credential": "MD",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2018-03-21",
"last_updated": "2025-06-30",
"certification_date": "2025-06-09",
"status": "A"
},
"taxonomies": [
{
"code": "207QA0401X",
"taxonomy_group": "",
"desc": "Family Medicine, Addiction Medicine",
"state": "PR",
"license": "21671",
"primary": true
},
{
"code": "208D00000X",
"taxonomy_group": "",
"desc": "General Practice",
"state": "PR",
"license": "21671",
"primary": false
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Manati, PR
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 30, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.