Pam L Diffley, CRNA

Primary specialty

Registered NurseTaxonomy code 163W00000X

Practice address

1850 Town Center Parkway
Reston Hospital Center
Reston, VA 20190

Phone

(703) 471-0919

Fax

(703) 742-9081

NPI assigned

Feb 13, 2006

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Enrolled

Credentials

Certified Registered Nurse

State licenses

Practice roles

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.

• Loudoun Anesthesia Associates

  • Anesthesiology Physician
  • Potomac Falls, VA
  • NPI 1629017645
  NPD (past)
• Reston Anesthesia Associates, PC

  • Anesthesiology Physician
  • Reston, VA
  • NPI 1932210093
  NPD (past)

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

{
    "created_epoch": "1139788800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1760456339",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 2757",
            "city": "RESTON",
            "state": "VA",
            "postal_code": "20195",
            "telephone_number": "703-471-0919",
            "fax_number": "703-742-9081"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1850 TOWN CENTER PARKWAY",
            "address_2": "RESTON HOSPITAL CENTER",
            "city": "RESTON",
            "state": "VA",
            "postal_code": "20190",
            "telephone_number": "703-471-0919",
            "fax_number": "703-742-9081"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DIFFLEY",
        "first_name": "PAM",
        "middle_name": "L",
        "credential": "CRNA",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-02-13",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "163W00000X",
            "taxonomy_group": "",
            "desc": "Registered Nurse",
            "state": "VA",
            "license": null,
            "primary": true
        },
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "VA",
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Shirley Derosa, LPC
• Ananya Dhoundiyal
• Sarah Harwood Dial, RN, CNS
• Amy Elizabeth Diehl, BCBA
• Carly Diffenderfer
• Digitrace Care Services Inc.
• Kaye Dillah, O.D.
• Kathleen G Dillon
• Daniel Stark Dinsmoor, PH. D.
• Anthony Dipaola, M.D.

• Registered Nurse in Reston, VA
• Providers in Reston, VA by specialty
• Registered Nurse in Virginia

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2026; 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.