Individual provider Active NPI

Lisa J Mahan, MD

  • Internal Medicine Physician
  • Memphis, TN
National Provider Identifier
1508824285
Registry record updated Mar 31, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
35126 Issued in TN
Practice address
3360 N Watkins St
Memphis, TN 38127-6405
Phone
(901) 401-7150
NPI assigned
May 3, 2006
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Mar 31, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Emergency Medicine Physician 207P00000X 35126 TN
Internal Medicine Physician 207R00000X 35126 TN Primary

Addresses

Primary practice location

3360 N Watkins St
Memphis, TN 38127-6405

Mailing address

PO Box 746725
Atlanta, GA 30374-6725
Phone (901) 401-7150

Other practice location 1

2847 Poplar Ave Ste 103
Memphis, TN 38111-2022
Phone (901) 244-3549

Other practice location 2

850 N Graham St
Memphis, TN 38122-2505
Phone (901) 292-2880

Other identifiers 1

IdentifierTypeStateIssuer
3863830MedicaidTN

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in TN
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20101029000748 TN Practitioner - Internal MedicinePractitioner - Emergency Medicine 9032303425 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Internal MedicineAlso: Emergency Medicine
Education
Other, 1997
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Osh Mi Physicians Group, PCGroup PAC ID 7810282191, 154 clinicians

Practice addresses (Care Compare)

3360 N Watkins St
Memphis, TN 38127-6432
Phone (901) 401-7150

Hospital & facility affiliations

  • Methodist Hospitals of Memphis Hospital, Memphis, TN, CCN 440049

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

Practice roles

OrganizationSpecialtyStatusNew patients
Harper Medical Group, PC CurrentSince Nov 10, 2019 Accepting new patients
Oak Street Health Physicians Group of Tennessee, PLLC Internal Medicine CurrentSince Jul 21, 2024 Accepting new patients
Osh Mi Physicians Group, PC CurrentSince Jul 8, 2024 Accepting new patients
Osh-Mi Physicians Group PC Internal Medicine Past Accepting new patients

Locations

5475 Poplar Ave
Ste 106
Memphis, TN 38119
Phone (901) 254-8040

3360 N Watkins St
Memphis, TN 38127
Phone (901) 353-4603

Interoperability endpoints

  • Direct secure messaging: lisa.mahan@oakstreethealth.gwaydirect.com

Organizations & group practices 4

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.

Hospital & facility affiliations 3

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

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

{
    "created_epoch": "1146614400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1774915200000",
    "number": "1508824285",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 746725",
            "city": "ATLANTA",
            "state": "GA",
            "postal_code": "303746725",
            "telephone_number": "901-401-7150",
            "fax_number": "901-347-1285"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3360 N WATKINS ST",
            "city": "MEMPHIS",
            "state": "TN",
            "postal_code": "381276405",
            "telephone_number": "901-401-7150"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2847 Poplar Ave Ste 103",
            "address_purpose": "LOCATION",
            "city": "Memphis",
            "state": "TN",
            "postal_code": "381112022",
            "country_code": "US",
            "telephone_number": "901-244-3549",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "850 N Graham St",
            "address_purpose": "LOCATION",
            "city": "Memphis",
            "state": "TN",
            "postal_code": "381222505",
            "country_code": "US",
            "telephone_number": "901-292-2880",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MAHAN",
        "first_name": "LISA",
        "middle_name": "J",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-05-03",
        "last_updated": "2026-03-31",
        "certification_date": "2026-03-31",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "TN",
            "license": "35126",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "TN",
            "license": "35126",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "3863830",
            "state": "TN"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Memphis, TN

Sources for this page

Verify at the official NPI Registry.