NPIMap

Organization Active NPI

Nelson Medical Group

  • Family Medicine Physician
  • Philadelphia, PA
National Provider Identifier
1952323461
Registry record updated Sep 11, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Family Medicine PhysicianTaxonomy code 207Q00000X
Legal business name
NELSON MEDICAL GROUP
Practice address
255 S 17TH St
Suite 2001
Philadelphia, PA 19103-6231
Phone
(215) 546-7049
Fax
(215) 546-8646
NPI assigned
Jul 24, 2006
Last updated
Sep 11, 2025By the provider in NPPES
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Sep 11, 2025

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

Authorized official

Name
Dr. Gregory Allen Nelson, M.D.
Title
Ceo
Phone
(215) 546-7049

Specialties & licenses 4

Specialty (taxonomy)CodeLicenseStatePrimary
Family Medicine PhysicianGroup: 193200000X MULTI-SPECIALTY GROUP 207Q00000X Primary
Internal Medicine PhysicianGroup: 193200000X MULTI-SPECIALTY GROUP 207R00000X
Orthopaedic Surgery PhysicianGroup: 193200000X MULTI-SPECIALTY GROUP 207X00000X
Pediatrics PhysicianGroup: 193200000X MULTI-SPECIALTY GROUP 208000000X

Addresses

Primary practice location

255 S 17TH St
Suite 2001
Philadelphia, PA 19103-6231

Mailing address

255 S 17TH St
Suite 2001
Philadelphia, PA 19103-6231
Phone (215) 546-7049

Other identifiers 10

IdentifierTypeStateIssuer
1912952789OtherPANPI#
MD050257LOtherPAMEDICAL LICENCE
OS006039LOtherPALICENSE #
MD051318LOtherPALICENSE #
MD050204LOtherPALISCENCE NUMBER
MD050257LOtherPAMEDICAL LISCENCE
MD013724EOtherPAMEDICAL LISCENCE
MD004666EOtherPAMEDICAL LISCENCE
MD033656LOtherPALICENSE #
C31657OtherPAUPIN

National Provider Directory

National Provider Directory
Tax ID family
Multispeciality5 organizations share this tax ID, including this one

Other organizations with this tax ID 4

Organizations that report the same tax identification number in the National Provider Directory.

NPI Registry JSON

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

{
    "created_epoch": "1153699200000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1757548800000",
    "number": "1952323461",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "255 S 17TH ST",
            "address_2": "SUITE 2001",
            "city": "PHILADELPHIA",
            "state": "PA",
            "postal_code": "191036231",
            "telephone_number": "215-546-7049",
            "fax_number": "215-546-8646"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "255 S 17TH ST",
            "address_2": "SUITE 2001",
            "city": "PHILADELPHIA",
            "state": "PA",
            "postal_code": "191036231",
            "telephone_number": "215-546-7049",
            "fax_number": "215-546-8646"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "NELSON MEDICAL GROUP",
        "organizational_subpart": "NO",
        "enumeration_date": "2006-07-24",
        "last_updated": "2025-09-11",
        "status": "A",
        "authorized_official_last_name": "NELSON",
        "authorized_official_first_name": "GREGORY",
        "authorized_official_middle_name": "ALLEN",
        "authorized_official_title_or_position": "CEO",
        "authorized_official_telephone_number": "215-546-7049",
        "authorized_official_name_prefix": "Dr.",
        "authorized_official_credential": "M.D."
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Family Medicine",
            "state": null,
            "license": null,
            "primary": true
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Internal Medicine",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "207X00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Orthopaedic Surgery",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "208000000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Pediatrics",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "NPI#",
            "identifier": "1912952789",
            "state": "PA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICAL LICENCE",
            "identifier": "MD050257L",
            "state": "PA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "LICENSE #",
            "identifier": "OS006039L",
            "state": "PA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "LICENSE #",
            "identifier": "MD051318L",
            "state": "PA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "LISCENCE NUMBER",
            "identifier": "MD050204L",
            "state": "PA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICAL LISCENCE",
            "identifier": "MD050257L",
            "state": "PA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICAL LISCENCE",
            "identifier": "MD013724E",
            "state": "PA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICAL LISCENCE",
            "identifier": "MD004666E",
            "state": "PA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "LICENSE #",
            "identifier": "MD033656L",
            "state": "PA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "UPIN",
            "identifier": "C31657",
            "state": "PA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Philadelphia, PA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 2025; 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.