Erik Gretzmacher, CRNA

Primary specialty

Certified Registered Nurse AnesthetistTaxonomy code 367500000X

License

0024193851 Issued in VA

Practice address

3800 Reservoir Rd NW
Washington, DC 20007-2113

Phone

(202) 444-1697

NPI assigned

Jun 11, 2022

Sex

Male

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

Enrolled in DC, VA2 enrollments

Enrollment records 2

Specialty

Certified Registered Nurse Anesthetist (Crna)

Education

Other, 2025

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Northstar Anesthesia of Virginia, LLCGroup PAC ID 6608268826, 407 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

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

Medicare enrollment (NPD)

Enrolled

State licenses

Practice roles

Locations

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.

• Northstar Anesthesia of Virginia, LLC

  • Anesthesiology Physician
  • Alexandria, VA
  • NPI 1194488791

  DC

  Medicare reassignment Care Compare group NPD

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

• Inova Health Care Services

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

  • 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": "1654905600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1754611200000",
    "number": "1154051373",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2104 N SCOTT ST APT 37",
            "city": "ARLINGTON",
            "state": "VA",
            "postal_code": "222091018",
            "telephone_number": "856-889-2931"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3800 RESERVOIR RD NW",
            "city": "WASHINGTON",
            "state": "DC",
            "postal_code": "200072113",
            "telephone_number": "202-444-1697"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GRETZMACHER",
        "first_name": "ERIK",
        "credential": "CRNA",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2022-06-11",
        "last_updated": "2025-08-08",
        "certification_date": "2025-08-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "163WC0200X",
            "taxonomy_group": "",
            "desc": "Registered Nurse, Critical Care Medicine",
            "state": "DC",
            "license": "RN1049033",
            "primary": false
        },
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "VA",
            "license": "0024193851",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Natalia Grekova, M.D.
• Gilda-Rae Grell, MD
• Burt B. Grenell, PH.D.
• Jerique Cortez Greogry
• Shelia Renee Gresham
• Joan F. Grew, N.P.
• Amrita Grewal
• Jaspreet Singh Grewal, M.D.
• Sarbjot Grewal, MD
• Conor Christopher Grey, DO

• Certified Registered Nurse Anesthetist in Washington, DC
• Providers in Washington, DC by specialty
• Certified Registered Nurse Anesthetist in District of Columbia

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 8, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
• 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.