William B Ershler, M.D.

Primary specialty

Hematology & Oncology PhysicianTaxonomy code 207RH0003X

License

0101054727 Issued in VA

Practice address

8501 Arlington Blvd Ste 340
Fairfax, VA 22031

Phone

(703) 207-0733

NPI assigned

Jul 27, 2006

Last updated

Nov 27, 2023By 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

Other identifiers 1

Electronic endpoints 1

Medicare fee-for-service enrollment

Enrolled in VA, 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

Internal MedicineAlso: Hematology/Oncology, Medical Oncology

Education

State University of Ny Upstate Medical University, 1974

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Inova Health Care ServicesGroup PAC ID 2466351093, shared by 24 NPIs, 1,821 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Inova Fairfax Hospital Hospital, Falls Church, VA, CCN 490063

Merit-based Incentive Payment System (MIPS)

Final score

83.36 of 100Reported as group

Quality

73.03

Promoting interoperability

100

Improvement activities

40

Cost

71.49

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: wershler25119@soc.inova.org

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.

• Inova Health Care Services

  dba Inova Fairfax Hospital Schar Physicians

  • Medical Oncology Physician
  • Fairfax, VA
  • NPI 1275097123

  DC

  Medicare reassignment
• Inova Health Care Services

  • Internal Medicine Physician
  • Falls Church, VA
  • NPI 1952320061

  DC

  Medicare reassignment
• Inova Health Care Services

  dba Inova Juniper Program

  • Multi-Specialty Clinic/Center
  • Fairfax, VA
  • NPI 1669511051
  NPD
• Frederick Health Hospital Inc

  dba Frederick Health Hospital

  • General Acute Care Hospital
  • Frederick, MD
  • NPI 1538165527
  NPD (past)

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

• Inova Health Care Services

  dba Inova Fairfax Hospital

  • Rehabilitation Hospital Unit
  • Falls Church, VA
  • NPI 1588795462
  Care Compare affiliation
• Inova Health Care Services

  dba Inova Fairfax Hospital

  • General Acute Care Hospital
  • Falls Church, VA
  • NPI 1831220714
  Care Compare affiliation

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

{
    "created_epoch": "1153958400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1701043200000",
    "number": "1669496881",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "8110 GATEHOUSE RD STE 300W",
            "city": "FALLS CHURCH",
            "state": "VA",
            "postal_code": "220421253",
            "telephone_number": "703-207-0733"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "8501 ARLINGTON BLVD STE 340",
            "city": "FAIRFAX",
            "state": "VA",
            "postal_code": "22031",
            "telephone_number": "703-207-0733"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "6400 Arlington Blvd",
            "address_2": "Suite 940",
            "address_purpose": "LOCATION",
            "city": "Falls Church",
            "state": "VA",
            "postal_code": "220422325",
            "country_code": "US",
            "telephone_number": "703-241-1010",
            "fax_number": "703-241-7723",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "ERSHLER",
        "first_name": "WILLIAM",
        "middle_name": "B",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2006-07-27",
        "last_updated": "2023-11-27",
        "certification_date": "2020-10-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RH0003X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology & Oncology",
            "state": "VA",
            "license": "0101054727",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "005862493",
            "state": "VA"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "wershler25119@soc.inova.org",
            "affiliation": "Y",
            "endpointDescription": "Health Information Exchange",
            "affiliationName": "Inova Health Care Services",
            "use": "HIE",
            "useDescription": "Health Information Exchange (HIE)",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "CCDA",
            "address_1": "8081 Innovation Park Dr",
            "city": "Fairfax",
            "state": "VA",
            "country_code": "US",
            "postal_code": "220314867",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Dana W. Ericksen, DDS
• Erickson Health Medical Group of Virginia, PC
• Yvi Erickson
• Alicia Ann Ericson, CPO
• Ann Rochell Ermitanio, PA
• Jessica Escobar, M.S.
• Melanie J Escobar, MSPT
• Marisol Y Escriba Amau, RN
• Caroline Corrigan Eskow, D.D.S, M.S.
• Hamid Espandyari, PT

• Hematology & Oncology Physician in Fairfax, VA
• Providers in Fairfax, VA by specialty
• Hematology & Oncology Physician in Virginia

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 27, 2023; 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.