Individual provider Active NPI

Marian D Pfefferkorn, MD

  • Pediatric Gastroenterology Physician
  • Indianapolis, IN
National Provider Identifier
1144335761
Registry record updated Feb 7, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Pediatric Gastroenterology PhysicianTaxonomy code 2080P0206X
License
01048304 Issued in IN
Practice address
705 Riley Hospital Dr
Roc 4210
Indianapolis, IN 46202-5109
Phone
(317) 944-3774
Fax
(317) 944-8521
NPI assigned
Aug 21, 2006
Last updated
Feb 7, 2026By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Feb 7, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Pediatric Gastroenterology Physician 2080P0206X 01048304 IN Primary

Addresses

Primary practice location

705 Riley Hospital Dr
Roc 4210
Indianapolis, IN 46202-5109

Mailing address

PO Box 719094
PO Box 719094
Chicago, IL 60677-9318
Phone (317) 777-6435

Other identifiers 3

IdentifierTypeStateIssuer
64881501MedicaidKY
200186770MedicaidIN
1011506MedicaidVT

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address mpfeffer@direct.iuhealth.org

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in IN
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
I20110311000084 IN Practitioner - GastroenterologyPractitioner - Pediatric Medicine 7113109141 Reassigns benefits to 1 organization

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
01048304INMDPediatric Gastroenterology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
University Pediatric Associates, Inc. CurrentSince Dec 1, 1999 Accepting new patients
Major Hospital Past Accepting new patients
Parkview Hospital, Inc. Past Accepting new patients
Iu Health Medical Group Riley Specialists, LLC Past Accepting new patients

Locations

702 Barnhill Dr
#4210
Indianapolis, IN 46202

705 Riley Hospital Dr
Indianapolis, IN 46202
Phone (317) 274-4779

705 Riley Hospital Dr
#4210
Indianapolis, IN 46202
Phone (317) 944-3774

Interoperability endpoints

  • Direct secure messaging: mpfeffer@direct.iuhealth.org

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.

NPI Registry JSON

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

{
    "created_epoch": "1156118400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1770422400000",
    "number": "1144335761",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 719094",
            "address_2": "PO BOX 719094",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606779318",
            "telephone_number": "317-777-6435",
            "fax_number": "317-777-6644"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "705 RILEY HOSPITAL DR",
            "address_2": "ROC 4210",
            "city": "INDIANAPOLIS",
            "state": "IN",
            "postal_code": "462025109",
            "telephone_number": "317-944-3774",
            "fax_number": "317-944-8521"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "PFEFFERKORN",
        "first_name": "MARIAN",
        "middle_name": "D",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-08-21",
        "last_updated": "2026-02-07",
        "certification_date": "2026-02-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2080P0206X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Pediatric Gastroenterology",
            "state": "IN",
            "license": "01048304",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "64881501",
            "state": "KY"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "200186770",
            "state": "IN"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "1011506",
            "state": "VT"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "mpfeffer@direct.iuhealth.org",
            "affiliation": "N",
            "address_1": "705 Riley Hospital Dr",
            "address_2": "ROC 4210",
            "city": "Indianapolis",
            "state": "IN",
            "country_code": "US",
            "postal_code": "462025109",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Indianapolis, IN

Sources for this page

Verify at the official NPI Registry.