Chad H Felsenstein, MD

Primary specialty

Emergency Medicine PhysicianTaxonomy code 207P00000X

License

MD071946L Issued in PA

Practice address

51 N 39TH St
Philadelphia, PA 19104-2640

Phone

(215) 662-8214

Fax

(215) 662-3953

NPI assigned

Jun 30, 2006

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in PA

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

Merit-based Incentive Payment System (MIPS)

Final score

84.91 of 100Reported as group

Quality

73.58

Promoting interoperability

100

Improvement activities

40

Cost

76.13

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

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.

• University of Penn-Medical Group

  • Gynecologic Oncology Physician
  • Philadelphia, PA
  • NPI 1235527342
  Medicare reassignment NPD
• University of Penn-Medical Group

  • Surgical Oncology Physician
  • Philadelphia, PA
  • NPI 1871981985
  NPD
• University of Penn-Medical Group

  • Emergency Medicine Physician
  • Philadelphia, PA
  • NPI 1952799074
  NPD

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

{
    "created_epoch": "1151625600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1782086400000",
    "number": "1235167743",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "51 N 39TH ST",
            "city": "PHILADELPHIA",
            "state": "PA",
            "postal_code": "191042640",
            "telephone_number": "215-662-8214",
            "fax_number": "215-662-3953"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "51 N 39TH ST",
            "city": "PHILADELPHIA",
            "state": "PA",
            "postal_code": "191042640",
            "telephone_number": "215-662-8214",
            "fax_number": "215-662-3953"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "FELSENSTEIN",
        "first_name": "CHAD",
        "middle_name": "H",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-06-30",
        "last_updated": "2026-06-22",
        "certification_date": "2026-06-22",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "PA",
            "license": "MD071946L",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "0018380330002",
            "state": "PA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Gabriel Sung Ho Fellin
• Ilaria Fellini
• Matthew Ian Fellows, M.D.
• Scott Robert Fellows, MSW LSW CAADC
• Jennifer L Felmey, CRNA
• Anne Felten
• Natalee Helene Felten, PHARMD, BCPS
• Courtney Felter
• Jeanne Marie Felter, PH.D LPC
• Nicholas Felter, MD

• Emergency Medicine Physician in Philadelphia, PA
• Providers in Philadelphia, PA by specialty
• Emergency Medicine Physician in Pennsylvania

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 22, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.