Individual provider Active NPI

Janet L Mahan, MD

  • Internal Medicine Physician
  • Tinton Falls, NJ
National Provider Identifier
1780651448
Registry record updated Feb 26, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
25MAO4910600 Issued in NJ
Practice address
3000 Essex Rd
Tinton Falls, NJ 07753-2400
Phone
(732) 643-2070
Fax
(732) 643-2015
NPI assigned
Mar 1, 2006
Last updated
Feb 26, 2026By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Feb 26, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X 25MAO4910600 NJ Primary

Addresses

Primary practice location

3000 Essex Rd
Tinton Falls, NJ 07753-2400

Mailing address

5730 Executive Dr Ste 230
Catonsville, MD 21228-1762
Phone (732) 643-2070

Other practice location 1

400 New Hampshire Ave
Ocean County Family Care
Lakewood, NJ 08701-4510
Phone (732) 901-6400

Other identifiers 1

IdentifierTypeStateIssuer
810301OtherNJMEDICARE GROUP

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in NJ
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
I20050104000614 NJ Practitioner - Internal Medicine 9234187592 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
Howard University College of Medicine, 1985
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices

Practice addresses (Care Compare)

3000 Essex Rd
Tinton Falls, NJ 07753-2400
Phone (732) 643-2070

Hospital & facility affiliations

Procedures performed for Medicare patients

ProcedureNumber of procedures
Removal of tissue1-10

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
25MAO4910600NJMDInternal Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
GPS Physician Group of New Jersey, PC CurrentSince Jan 1, 2018 Accepting new patients
Erickson Health Medical Group of New Jersey PC Internal Medicine CurrentSince Sep 22, 2020 Accepting new patients
Erickson Health Medical Group of New Jersey PC Internal Medicine CurrentSince Sep 22, 2020 Accepting new patients
Physicians Home & Health Services Internal Medicine PastSince Oct 31, 1997 Accepting new patients

Locations

5525 Research Park Dr
Catonsville, MD 21228

5525 Research Park Dr
Fl 4
Catonsville, MD 21228
Phone (410) 247-5602

5730 Executive Dr
Ste 230
Catonsville, MD 21228
Phone (410) 402-2379

1361 Route 72 W
Manahawkin, NJ 08050
Phone (609) 978-0600

249 High St
Newton, NJ 07860
Phone (973) 383-5600

843 Wilbur Ave
Phillipsburg, NJ 08865
Phone (908) 454-2627

1 Cedar Crest Village Dr
Pompton Plns, NJ 07444
Phone (973) 831-3540

1351 Old Freehold Rd
Toms River, NJ 08753
Phone (732) 240-0090

Interoperability endpoints

  • Direct secure messaging: janetmahan@zjhc.ssdirect.aprima.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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

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": "1141171200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1772064000000",
    "number": "1780651448",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5730 EXECUTIVE DR STE 230",
            "city": "CATONSVILLE",
            "state": "MD",
            "postal_code": "212281762",
            "telephone_number": "732-643-2070",
            "fax_number": "732-643-2015"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3000 ESSEX RD",
            "city": "TINTON FALLS",
            "state": "NJ",
            "postal_code": "077532400",
            "telephone_number": "732-643-2070",
            "fax_number": "732-643-2015"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "400 New Hampshire Ave",
            "address_2": "Ocean County Family Care",
            "address_purpose": "LOCATION",
            "city": "Lakewood",
            "state": "NJ",
            "postal_code": "087014510",
            "country_code": "US",
            "telephone_number": "732-901-6400",
            "fax_number": "732-901-0744",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MAHAN",
        "first_name": "JANET",
        "middle_name": "L",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-03-01",
        "last_updated": "2026-02-26",
        "certification_date": "2026-02-26",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "NJ",
            "license": "25MAO4910600",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICARE GROUP",
            "identifier": "810301",
            "state": "NJ"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Tinton Falls, NJ

Sources for this page

Verify at the official NPI Registry.