John David Farrell Jr., M.D.

Primary specialty

Pediatrics PhysicianTaxonomy code 208000000X

License

0101054063 Issued in VA

Practice address

25055 Riding PLZ Ste 150
Suite 150
Chantilly, VA 20152-5919

Phone

(703) 327-0075

Fax

(703) 327-7977

NPI assigned

Aug 18, 2006

Last updated

Oct 31, 2025By the provider in NPPES

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Interoperability endpoints

• Direct secure messaging: john.farrell@tdsr.eclinicaldirectplus.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.

• Frederick Health Hospital Inc

  dba Frederick Health Hospital

  • General Acute Care Hospital
  • Frederick, MD
  • NPI 1538165527
  NPD (past)
• Pediatrix Medical Group of the Mid-Atlantic PC

  • Maternal & Fetal Medicine Physician
  • Rockville, MD
  • NPI 1205859691
  NPD (past)

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

{
    "created_epoch": "1155859200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1761868800000",
    "number": "1851405708",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "25055 RIDING PLZ STE 150",
            "address_2": "SUITE 150",
            "city": "CHANTILLY",
            "state": "VA",
            "postal_code": "201525919",
            "telephone_number": "703-327-0075",
            "fax_number": "703-327-7977"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "25055 RIDING PLZ STE 150",
            "address_2": "SUITE 150",
            "city": "CHANTILLY",
            "state": "VA",
            "postal_code": "201525919",
            "telephone_number": "703-327-0075",
            "fax_number": "703-327-7977"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "FARRELL",
        "first_name": "JOHN",
        "middle_name": "DAVID",
        "name_prefix": "Dr.",
        "name_suffix": "Jr.",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2006-08-18",
        "last_updated": "2025-10-31",
        "certification_date": "2025-10-31",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "VA",
            "license": "0101054063",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Family Beeginnings Inc.
• Megan Drye Famodu, PHARMD
• Margaret Elinor Fanning
• Fannypants LLC
• Elizabeth Rapp Farasey, MS, LPC
• Kevin Faust
• Jason J Fecko, D.C.
• Cindy Cheng Feely, M.D.
• Flora Paul Fenchel, R.N.
• Deborah A. Fenyak, CRNA

• Pediatrics Physician in Chantilly, VA
• Providers in Chantilly, VA by specialty
• Pediatrics Physician in Virginia

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 31, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.