NPIMap

Organization Active NPI

Pathology Sciences Medical Group, PC

  • Anatomic Pathology & Clinical Pathology Physician
  • Norfolk, VA
National Provider Identifier
1366499733
Registry record updated Mar 27, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Anatomic Pathology & Clinical Pathology PhysicianTaxonomy code 207ZP0102X
Legal business name
PATHOLOGY SCIENCES MEDICAL GROUP, PC
Practice address
600 Gresham Dr
Sentara Norfolk Gen Hospital Path Dept
Norfolk, VA 23507-1904
Phone
(757) 388-3221
Fax
(614) 583-3300
NPI assigned
May 30, 2006
Last updated
Mar 27, 2026By the provider in NPPES
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Mar 27, 2026

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

Authorized official

Name
Mr. Hassan R Tahhan, MDNPI 1770541229
Title
Vice President
Phone
(757) 388-3221

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)CodeLicenseStatePrimary
Anatomic Pathology & Clinical Pathology Physician 207ZP0102X Primary

Addresses

Primary practice location

600 Gresham Dr
Sentara Norfolk Gen Hospital Path Dept
Norfolk, VA 23507-1904

Mailing address

PO Box 79671
Baltimore, MD 21279-0671
Phone (800) 554-2695

Other identifiers 1

IdentifierTypeStateIssuer
CE9565OtherVARR MEDICARE

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in VA, NC2 enrollments

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
O20040129000160 VA Part B Supplier - Clinic/Group Practice 7315840261 Receives reassigned benefits from 27 practitioners
Practice locations: Hampton, VA; Norfolk, VA; Suffolk, VA; Virginia Beach, VA; Williamsburg, VA; Woodbridge, VA
O20160920002337 NC Part B Supplier - Clinic/Group Practice 7315840261 Receives reassigned benefits from 19 practitioners
Practice locations: Elizabeth City, NC

National Provider Directory

National Provider Directory

Locations

6333 Center Dr
#16
Norfolk, VA 23502
Phone (757) 252-9500

Practitioners & affiliated clinicians

Practitioners 48

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.

View all 48

NPI Registry JSON

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

{
    "created_epoch": "1148947200000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1774569600000",
    "number": "1366499733",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 79671",
            "city": "BALTIMORE",
            "state": "MD",
            "postal_code": "212790671",
            "telephone_number": "800-554-2695",
            "fax_number": "614-583-3300"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "600 GRESHAM DR",
            "address_2": "SENTARA NORFOLK GEN HOSPITAL PATH DEPT",
            "city": "NORFOLK",
            "state": "VA",
            "postal_code": "235071904",
            "telephone_number": "757-388-3221",
            "fax_number": "614-583-3300"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "PATHOLOGY SCIENCES MEDICAL GROUP, PC",
        "organizational_subpart": "NO",
        "enumeration_date": "2006-05-30",
        "last_updated": "2026-03-27",
        "certification_date": "2026-03-27",
        "status": "A",
        "authorized_official_last_name": "TAHHAN",
        "authorized_official_first_name": "HASSAN",
        "authorized_official_middle_name": "R",
        "authorized_official_title_or_position": "VICE PRESIDENT",
        "authorized_official_telephone_number": "757-388-3221",
        "authorized_official_name_prefix": "Mr.",
        "authorized_official_credential": "MD"
    },
    "taxonomies": [
        {
            "code": "207ZP0102X",
            "taxonomy_group": "",
            "desc": "Pathology, Anatomic Pathology & Clinical Pathology",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "RR MEDICARE",
            "identifier": "CE9565",
            "state": "VA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Norfolk, VA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 27, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.