Karen Roberta Maser, M.D.

Primary specialty

Obstetrics & Gynecology PhysicianTaxonomy code 207V00000X

License

0101058017 Issued in VA

Practice address

8505 Arlington Blvd Ste 410
Fairfax, VA 22031-4636

Phone

(703) 560-9070

Fax

(703) 560-9024

NPI assigned

Dec 6, 2006

Last updated

Sep 4, 2014By the provider in NPPES

Sex

Female

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

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.

Opted out of Medicare

Previously, effective Oct 5, 2022 through Oct 5, 2026

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Interoperability endpoints

• Direct secure messaging: kmaser25709@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.

• Karen R Maser MD LLC

  • Obstetrics & Gynecology Physician
  • Fairfax, VA
  • NPI 1477751030
  NPD (past) Authorized official

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

{
    "created_epoch": "1165363200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1409788800000",
    "number": "1699834986",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "8505 ARLINGTON BLVD STE 410",
            "city": "FAIRFAX",
            "state": "VA",
            "postal_code": "220314636",
            "telephone_number": "703-560-9070",
            "fax_number": "703-560-9024"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "8505 ARLINGTON BLVD STE 410",
            "city": "FAIRFAX",
            "state": "VA",
            "postal_code": "220314636",
            "telephone_number": "703-560-9070",
            "fax_number": "703-560-9024"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MASER",
        "first_name": "KAREN",
        "middle_name": "ROBERTA",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2006-12-06",
        "last_updated": "2014-09-04",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "VA",
            "license": "0101058017",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Jennifer Marie Martini, MD
• Amanda Marvin, ATC
• Maryanne Healthcare Services LLC
• Vincent James Mascatello, MD
• Philbert John Masele
• Catherine Sanders Maskell, ARNP
• Heather Maslonek, LCSW
• Youssef Radwan Masmoudi, MD
• Anna Dieringer Mason, FNP-C
• David Mason, LPC

• Obstetrics & Gynecology Physician in Fairfax, VA
• Providers in Fairfax, VA by specialty
• Obstetrics & Gynecology Physician in Virginia

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 4, 2014; 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; Opt Out Affidavits.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.