NPIMap

Individual provider Active NPI

Marianne Riordan, MD

  • Endocrinology, Diabetes & Metabolism Physician
  • Philadelphia, PA
National Provider Identifier
1649891961
Registry record updated Jan 30, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Endocrinology, Diabetes & Metabolism PhysicianTaxonomy code 207RE0101X
License
MD490718 Issued in PA
Practice address
3401 N Broad St
Philadelphia, PA 19140-5103
Phone
(215) 707-4600
Fax
(215) 707-5599
NPI assigned
Apr 27, 2020
Last updated
Jan 30, 2026By the provider in NPPES
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jan 30, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Endocrinology, Diabetes & Metabolism Physician 207RE0101X MD490718 PA Primary

Addresses

Primary practice location

3401 N Broad St
Philadelphia, PA 19140-5103

Mailing address

3509 N Broad St
Philadelphia, PA 19140-4105
Phone (215) 707-2433

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20250909002093 PA Practitioner - Endocrinology 7719489541 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Endocrinology
Education
Other, 2016
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Temple Faculty Practice Plan IncGroup PAC ID 0345588711, 1,325 clinicians

Practice addresses (Care Compare)

1331 E Wyoming Ave
Philadelphia, PA 19124-3808
Phone (215) 707-2098

2301 E Allegheny Ave
Philadelphia, PA 19134-4427
Phone (215) 291-3631

3401 N Broad St
Philadelphia, PA 19140-5103

7600 Central Ave
Philadelphia, PA 19111-2442
Phone (215) 707-5864

Hospital & facility affiliations

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Temple Faculty Practice Plan Inc Internal Medicine CurrentSince Sep 1, 2025 Accepting new patients
Temple Faculty Practice Plan Inc CurrentSince Sep 1, 2025 Accepting new patients
Temple Faculty Practice Plan Inc Current Accepting new patients

Locations

3401 N Broad St
Philadelphia, PA 19140
Phone (215) 707-3807

3500 N Broad St
Philadelphia, PA 19140
Phone (215) 707-3656

3509 N Broad St
Philadelphia, PA 19140
Phone (215) 707-2433

Organizations & group practices 3

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 8

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": "1587945600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1769731200000",
    "number": "1649891961",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3509 N BROAD ST",
            "city": "PHILADELPHIA",
            "state": "PA",
            "postal_code": "191404105",
            "telephone_number": "215-707-2433"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3401 N BROAD ST",
            "city": "PHILADELPHIA",
            "state": "PA",
            "postal_code": "191405103",
            "telephone_number": "215-707-4600",
            "fax_number": "215-707-5599"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "RIORDAN",
        "first_name": "MARIANNE",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2020-04-27",
        "last_updated": "2026-01-30",
        "certification_date": "2026-01-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RE0101X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Endocrinology, Diabetes & Metabolism",
            "state": "PA",
            "license": "MD490718",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Philadelphia, PA

Sources for this page

Verify at the official NPI Registry.