Miriam Ruth Fischer, MD

Primary specialty

Emergency Medicine PhysicianTaxonomy code 207P00000X

License

MD046798 Issued in DC

Practice address

110 Irving St NW
Washington, DC 20010-3017

Phone

(202) 877-2424

NPI assigned

Apr 30, 2009

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

Enrolled in DC, MD2 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

Emergency Medicine

Education

George Washington University School of Medicine, 2009

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Medstar Medical Group II LLCGroup PAC ID 0547413825, 3,726 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Medstar Washington Hospital Center Hospital, Washington, DC, CCN 090011

Merit-based Incentive Payment System (MIPS)

Final score

94.27 of 100Reported as group

Quality

80.29

Promoting interoperability

100

Improvement activities

40

Cost

75.48

Medicare enrollment (NPD)

Not enrolled

HHS exclusion list flag

Flagged The directory lists this NPI on an HHS exclusion list. The OIG exclusions file (LEIE) holds no record for this NPI, and the directory does not say which list the flag comes from. How exclusions are shown Confirm with the OIG exclusions search.

Credentials

Doctor of Medicine

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.

• Medstar Medical Group II LLC

  • General Practice Physician
  • Baltimore, MD
  • NPI 1184046187

  DC

  Medicare reassignment Care Compare group NPD
• WHC Physician Group LLC

  • General Practice Physician
  • Washington, DC
  • NPI 1700154226

  MD

  Medicare reassignment NPD
• Medstar Medical Group II LLC

  • Diagnostic Radiology Physician
  • Washington, DC
  • NPI 1578302055
  NPD
• WHC Emerg Phys

  • Emergency Medical Services (Emergency Medicine) Physician
  • Washington, DC
  • NPI 1306260625
  NPD
• Bestpractices, Inc.

  • Emergency Medicine Physician
  • Falls Church, VA
  • NPI 1639177942
  NPD (past)
• Bestpractices, Inc.

  • Emergency Medicine Physician
  • Woodbridge, VA
  • NPI 1730180944
  NPD (past)

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

• Medstar Washington Hospital Center

  • General Acute Care Hospital
  • Washington, DC
  • NPI 1548378235
  Care Compare affiliation

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

{
    "created_epoch": "1241049600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1769040000000",
    "number": "1639313976",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "21 BARTLETT CRES",
            "city": "BROOKLINE",
            "state": "MA",
            "postal_code": "024462208",
            "telephone_number": "607-227-9778"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "110 IRVING ST NW",
            "city": "WASHINGTON",
            "state": "DC",
            "postal_code": "200103017",
            "telephone_number": "202-877-2424"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "3300 Gallows Rd",
            "address_purpose": "LOCATION",
            "city": "Falls Church",
            "state": "VA",
            "postal_code": "220423307",
            "country_code": "US",
            "telephone_number": "703-776-3195",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "FISCHER",
        "first_name": "MIRIAM",
        "middle_name": "RUTH",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2009-04-30",
        "last_updated": "2026-01-22",
        "certification_date": "2026-01-22",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "DC",
            "license": "MD046798",
            "primary": true
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "VA",
            "license": "0101251966",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Firststop Health Services, Inc
• Nikki Katrina Fischbach
• Ernest Fischer, M.D.
• Lorraine Fischer, MSW
• Michele Patricia Fischer, MD
• Stephen Lewis Fischer, M.D.
• Catherine Marjorie Fish, MSW
• Chloe Madeline Fish, OTR/L #OT210002277
• Steven Laurence Fish, M.D.
• Dawn A Fishbein, MD

• Emergency Medicine Physician in Washington, DC
• Providers in Washington, DC by specialty
• Emergency Medicine Physician in District of Columbia

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 22, 2026; 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.