Gelsey Lynn Rellosa, MD

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

MD445436 Issued in PA

Practice address

6232 Market St
Philadelphia, PA 19139-2922

Phone

(215) 444-7672

Fax

(267) 627-5873

NPI assigned

Jan 1, 2009

Last updated

Apr 30, 2025By the provider in NPPES

Sex

Female

Sole proprietor

No

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

Specialties & licenses 4

Addresses

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

Specialty

Internal Medicine

Education

Temple University School of Medicine, 2006

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Osh - PA Physicians Group, PCGroup PAC ID 7517213879, 113 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Pennsylvania Hospital Hospital, Philadelphia, PA, CCN 390226

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Interoperability endpoints

• Direct secure messaging: gelsey.rellosa@oakstreethealth.gwaydirect.com

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.

• Osh - PA Physicians Group, PC

  • Primary Care Clinic/Center
  • Philadelphia, PA
  • NPI 1811405533
  Medicare reassignment Care Compare group

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

• The Pennsylvania Hospital of the University of Pennsylvania Health Sys

  • General Acute Care Hospital
  • Phila, PA
  • NPI 1063489342
  Care Compare affiliation

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

{
    "created_epoch": "1230768000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1745971200000",
    "number": "1497991079",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 746722",
            "city": "ATLANTA",
            "state": "GA",
            "postal_code": "303746722",
            "telephone_number": "312-733-9730",
            "fax_number": "773-866-8014"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "6232 MARKET ST",
            "city": "PHILADELPHIA",
            "state": "PA",
            "postal_code": "191392922",
            "telephone_number": "215-444-7672",
            "fax_number": "267-627-5873"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "RELLOSA",
        "first_name": "GELSEY",
        "middle_name": "LYNN",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2009-01-01",
        "last_updated": "2025-04-30",
        "certification_date": "2025-04-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MD",
            "license": "D68991",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "VA",
            "license": "0101248505",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "PA",
            "license": "MD445436",
            "primary": true
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "DC",
            "license": "MD038030",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Reliance Home Care Agency Inc
• Reliance Home Medical Care Inc (Reliance Home Care)
• Reliance Non- Emergency Medical Transportation
• Reliance Senior Homes Inc
• Relinquish & Transcend Counseling
• Rely Medical Supplies LLC
• Rem Audiology Associates, P.C.
• Ehren Remal, LCSW
• Ilan Remba, MD
• Alexander Michael Rembalsky, DO

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

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 30, 2025; 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.