Brandon Gregory Twombly, DO

Primary specialty

Family Medicine PhysicianTaxonomy code 207Q00000X

License

OS022995 Issued in PA

Practice address

955 E Haverford Rd Ste 300
Bryn Mawr, PA 19010-3848

Phone

(610) 525-2990

Fax

(610) 525-2099

NPI assigned

Mar 30, 2021

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

Electronic endpoints 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

Specialty

Family Practice

Education

Philadelphia College of Osteopathic Medicine, 2021

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Bryn Mawr Medical Specialists AssociationGroup PAC ID 4183610934, 135 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Main Line Health Home Care & Hospice - Home Health Home health agency, Radnor, PA, CCN 397012
• Bryn Mawr Hospital Hospital, Bryn Mawr, PA, CCN 390139
• Main Line Hospital Lankenau Hospital, Wynnewood, PA, CCN 390195
• Paoli Hospital Hospital, Paoli, PA, CCN 390153
• Riddle Memorial Hospital Hospital, Media, PA, CCN 390222
• Hospital of Univ of Pennsylvania Hospital, Philadelphia, PA, CCN 390111

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: paexchange@patientfirstclinics.com

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.

• Bryn Mawr Medical Specialists Association

  • Multi-Specialty Clinic/Center
  • Bryn Mawr, PA
  • NPI 1841226099
  Medicare reassignment Care Compare group NPD
• Bryn Mawr Medical Specialists Association

  • Internal Medicine Physician
  • Bryn Mawr, PA
  • NPI 1790192441

  Family Medicine

  NPD

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

• Hospital of the University of PA

  • Ambulatory Fertility Facility
  • Phila, PA
  • NPI 1033262316

  Hospital

  Care Compare affiliation
• Main Line Hospitals, Inc.

  • General Acute Care Hospital
  • Paoli, PA
  • NPI 1215042114
  Care Compare affiliation
• Main Line Hospitals, Inc.

  • General Acute Care Hospital
  • Wynnewood, PA
  • NPI 1245335629
  Care Compare affiliation
• Main Line Hospitals, Inc.

  • General Acute Care Hospital
  • Bryn Mawr, PA
  • NPI 1508971441
  Care Compare affiliation
• Riddle Memorial Hospital

  • General Acute Care Hospital
  • Media, PA
  • NPI 1407856099
  Care Compare affiliation
• Trustees of the University of Pennsylvania

  • General Acute Care Hospital
  • Philadelphia, PA
  • NPI 1851370910
  Care Compare affiliation

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

{
    "created_epoch": "1617062400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1754956800000",
    "number": "1013595396",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "825 OLD LANCASTER RD STE 320",
            "city": "BRYN MAWR",
            "state": "PA",
            "postal_code": "190103235",
            "telephone_number": "610-527-3800"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "955 E HAVERFORD RD STE 300",
            "city": "BRYN MAWR",
            "state": "PA",
            "postal_code": "190103848",
            "telephone_number": "610-525-2990",
            "fax_number": "610-525-2099"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "417 Baltimore Pike",
            "address_purpose": "LOCATION",
            "city": "Springfield",
            "state": "PA",
            "postal_code": "190643810",
            "country_code": "US",
            "telephone_number": "484-470-2600",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1260 E Woodland Ave Ste 200",
            "address_purpose": "LOCATION",
            "city": "Springfield",
            "state": "PA",
            "postal_code": "190643956",
            "country_code": "US",
            "telephone_number": "610-690-4490",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "TWOMBLY",
        "first_name": "BRANDON",
        "middle_name": "GREGORY",
        "name_prefix": "Dr.",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2021-03-30",
        "last_updated": "2025-08-12",
        "certification_date": "2025-08-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "PA",
            "license": "OS022995",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "PAExchange@patientfirstclinics.com",
            "affiliation": "N",
            "endpointDescription": "email",
            "use": "HIE",
            "useDescription": "Health Information Exchange (HIE)",
            "address_1": "417 Baltimore Pike",
            "city": "Springfield",
            "state": "PA",
            "country_code": "US",
            "postal_code": "190643810",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Daniel Tsang
• Steven D Tsao, PH.D.
• Maki Ishii Tsou, D.M.D.
• Ashley Tucker, PA-C
• Katherine Kelly Turner, RD, LDN
• Julia Margaret Uffner, MD
• Luna Ugrenovic, PH.D.
• Leonard P Ulan Jr., DO
• Hyong Un, MD
• Mara Underwood, MD

• Family Medicine Physician in Bryn Mawr, PA
• Providers in Bryn Mawr, PA by specialty
• Family Medicine Physician in Pennsylvania

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 12, 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.