Active NPI
Martinezfesholdid
- Infectious Disease Physician
- San Juan, PR
National Provider Identifier
1629901608
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Infectious Disease Physician
- Legal business name
- MARTINEZFESHOLDID
- Practice address
- 371 Calle de Diego
San Juan, PR 00923-3002 - Phone
- (787) 767-5100
- NPI assigned
- Jun 8, 2026
- Organization subpart
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Authorized official
- Name
- Dr. Jonathan A Martinez Feshold, MD
- Title
- President
- Phone
- (787) 402-5656
Authorized official NPPES reports the official by name only. The link goes to the one practitioner connected to this organization with that name.
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Infectious Disease Physician | 207RI0200X | Primary |
Addresses
Primary practice location
371 Calle de Diego
San Juan, PR 00923-3002
Mailing address
900 Calle Harvard
San Juan, PR 00927-4810
Phone (787) 402-5656
National Provider Directory
National Provider DirectoryPractitioners & affiliated clinicians
Practitioners 1
Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.
-
- Infectious Disease Physician
- San Juan, PR
- NPI 1851749964
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1780876800000",
"enumeration_type": "NPI-2",
"last_updated_epoch": "1780876800000",
"number": "1629901608",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "900 CALLE HARVARD",
"city": "SAN JUAN",
"state": "PR",
"postal_code": "009274810",
"telephone_number": "787-402-5656"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "371 CALLE DE DIEGO",
"city": "SAN JUAN",
"state": "PR",
"postal_code": "009233002",
"telephone_number": "787-767-5100"
}
],
"practiceLocations": [],
"basic": {
"organization_name": "MARTINEZFESHOLDID",
"organizational_subpart": "NO",
"enumeration_date": "2026-06-08",
"last_updated": "2026-06-08",
"certification_date": "2026-06-08",
"status": "A",
"authorized_official_last_name": "MARTINEZ FESHOLD",
"authorized_official_first_name": "JONATHAN",
"authorized_official_middle_name": "A",
"authorized_official_title_or_position": "PRESIDENT",
"authorized_official_telephone_number": "787-402-5656",
"authorized_official_name_prefix": "Dr.",
"authorized_official_credential": "MD"
},
"taxonomies": [
{
"code": "207RI0200X",
"taxonomy_group": "193400000X SINGLE SPECIALTY GROUP",
"desc": "Internal Medicine, Infectious Disease",
"state": null,
"license": null,
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in San Juan, PR
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 8, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.