Active NPI
Howard Brensilver, M.D.
- Internal Medicine Physician
- Mystic, CT
National Provider Identifier
1336134451
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Internal Medicine Physician
- License
- 015952
- Practice address
- 200 Sandy Hollow Rd
Mystic, CT 06355-1720 - Phone
- (860) 572-8911
- Fax
- (860) 572-7758
- NPI assigned
- Sep 14, 2005
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Internal Medicine Physician | 207R00000X | 015952 | CT | Primary |
Addresses
Primary practice location
200 Sandy Hollow Rd
Mystic, CT 06355-1720
Mailing address
200 Sandy Hollow Rd
Mystic, CT 06355-1720
Phone (860) 572-8911
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Not enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 015952 | CT | MD | Internal Medicine Physician |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1126656000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1783900800000",
"number": "1336134451",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "200 SANDY HOLLOW RD",
"city": "MYSTIC",
"state": "CT",
"postal_code": "063551720",
"telephone_number": "860-572-8911",
"fax_number": "860-572-7758"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "200 SANDY HOLLOW RD",
"city": "MYSTIC",
"state": "CT",
"postal_code": "063551720",
"telephone_number": "860-572-8911",
"fax_number": "860-572-7758"
}
],
"practiceLocations": [],
"basic": {
"last_name": "BRENSILVER",
"first_name": "HOWARD",
"name_prefix": "Dr.",
"credential": "M.D.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2005-09-14",
"last_updated": "2026-07-13",
"status": "A"
},
"taxonomies": [
{
"code": "207R00000X",
"taxonomy_group": "",
"desc": "Internal Medicine",
"state": "CT",
"license": "015952",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Mystic, CT
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 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.