Daniel Aaron Portney, MD

Primary specialty

Orthopaedic Surgery PhysicianTaxonomy code 207X00000X

License

MD600003689 Issued in DC

Practice address

2 Dudley St Ste 200
Providence, RI 02905-3248

Phone

(401) 457-1500

NPI assigned

Dec 12, 2015

Sex

Male

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 RI, DC2 enrollments

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 2

Specialty

Orthopedic Surgery

Education

Northwestern University Feinberg Medical School, 2019

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Medstar Medical Group II LLCGroup PAC ID 0547413825, 3,726 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Medstar Georgetown University Hospital Hospital, Washington, DC, CCN 090004

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

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.

• Medstar Medical Group II LLC

  • General Practice Physician
  • Baltimore, MD
  • NPI 1184046187

  DC

  Medicare reassignment Care Compare group NPD
• University Orthopedics, Inc.

  • Orthopaedic Surgery Physician
  • Providence, RI
  • NPI 1235181041
  Medicare reassignment NPD
• University Orthopedics, Inc.

  • Orthopaedic Surgery Physician
  • Cranston, RI
  • NPI 1285320093
  NPD
• Medstar Medical Group II LLC

  • Hospitalist Physician
  • Washington, DC
  • NPI 1770198301
  NPD
• Medstar Medical Group II LLC

  • Internal Medicine Physician
  • Washington, DC
  • NPI 1376887844
  NPD (past)

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

• Medstar - Georgetown Medical Center, Inc.

  • General Acute Care Hospital
  • Washington, DC
  • NPI 1427145176
  Care Compare affiliation

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

{
    "created_epoch": "1449878400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1762128000000",
    "number": "1023483369",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1 KETTLE POINT AVE",
            "city": "EAST PROVIDENCE",
            "state": "RI",
            "postal_code": "029145375"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2 DUDLEY ST STE 200",
            "city": "PROVIDENCE",
            "state": "RI",
            "postal_code": "029053248",
            "telephone_number": "401-457-1500"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "PORTNEY",
        "first_name": "DANIEL",
        "middle_name": "AARON",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2015-12-12",
        "last_updated": "2025-11-03",
        "certification_date": "2025-11-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207X00000X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery",
            "state": "VA",
            "license": "0101286203",
            "primary": false
        },
        {
            "code": "207X00000X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery",
            "state": "RI",
            "license": "MD20082",
            "primary": false
        },
        {
            "code": "207X00000X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery",
            "state": "DC",
            "license": "MD600003689",
            "primary": true
        },
        {
            "code": "207X00000X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery",
            "state": "MD",
            "license": "D0104232",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Tamra Danielle Portalla, DAOM
• Judy Anne Portella-Self, MSW,RN,LCDPII
• Jennifer Rose Portelli-Gupta, PA-C
• David Portelli, MD
• Lindsay Rose Porteous, MD. FRCSC
• Carl Porto III
• Roberta Bellas Portugal, RN
• Raphaela Posner, MD
• Michelle D Pothier, M.ED.
• Sarah Pothier

• Orthopaedic Surgery Physician in Providence, RI
• Providers in Providence, RI by specialty
• Orthopaedic Surgery Physician in Rhode Island

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 3, 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.