Helen Blythe Provenzano, DMD

Primary specialty

General Practice DentistryTaxonomy code 1223G0001X

License

11446 Issued in SC

Practice address

1554 Central Ave Ste B
Summerville, SC 29483-5593

Phone

(854) 264-7270

NPI assigned

May 27, 2026

Sex

Female

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Addresses

Other names 1

• Helen Blythe Coss Former name

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

Practice roles

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Dental Professional of South Carolina, P.C.

  • General Practice Dentistry
  • Summerville, SC
  • NPI 1871469528
  NPD (past)

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1779840000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1779840000000",
    "number": "1972434033",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1871 ASHLEY RIVER RD APT 4308",
            "city": "CHARLESTON",
            "state": "SC",
            "postal_code": "294078723"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1554 CENTRAL AVE STE B",
            "city": "SUMMERVILLE",
            "state": "SC",
            "postal_code": "294835593",
            "telephone_number": "854-264-7270"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "PROVENZANO",
        "first_name": "HELEN",
        "middle_name": "BLYTHE",
        "credential": "DMD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2026-05-27",
        "last_updated": "2026-05-27",
        "certification_date": "2026-05-27",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1223G0001X",
            "taxonomy_group": "",
            "desc": "Dentist, General Practice",
            "state": "SC",
            "license": "11446",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "HELEN",
            "last_name": "COSS",
            "middle_name": "BLYTHE",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

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• General Practice Dentistry in Summerville, SC
• Providers in Summerville, SC by specialty
• General Practice Dentistry in South Carolina

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 27, 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.

Verify at the official NPI Registry.