NPIMap

Individual provider Active NPI

Christopher Kalhorn

  • Neurological Surgery Physician
  • Washington, DC
National Provider Identifier
1609875137
Registry record updated Mar 8, 2012
On this page

Key facts

NPPES NPI Registry
Primary specialty
Neurological Surgery PhysicianTaxonomy code 207T00000X
License
32585 Issued in DC
Practice address
3800 Reservoir Rd NW
Washington, DC 20007-2113
Phone
(202) 444-4972
NPI assigned
Jul 18, 2005
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Mar 8, 2012

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Neurological Surgery Physician 207T00000X 32585 DC Primary

Addresses

Primary practice location

3800 Reservoir Rd NW
Washington, DC 20007-2113

Mailing address

PO Box 418283
Boston, MA 02241-8283
Phone (703) 558-1544

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in DC
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20111101000080 DC Practitioner - Neurosurgery 0547433963 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Neurosurgery
Education
Loyola University of Chicago, Stritch School of Medicine, 1996
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Medstar Medical Group II LLCGroup PAC ID 0547413825, 3,726 clinicians

Practice addresses (Care Compare)

1145 19TH St NW
311 MMG at 19TH Street NW
Washington, DC 20036-3735
Phone (202) 429-2401

3007 Tilden St NW
Suite 5N
Washington, DC 20008-3030

3800 Reservoir Rd NW
Washington, DC 20007-2113
Phone (703) 558-1400

5454 Wisconsin Ave
Chevy Chase, MD 20815-6901
Phone (877) 677-3627

6410 Rockledge Dr
Suite 600
Bethesda, MD 20817-1844

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
82.97 of 100Reported as group
Quality
72.87
Promoting interoperability
100
Improvement activities
40
Cost
67.82

Procedures performed for Medicare patients

ProcedureNumber of procedures
Spinal fusion40
Laminectomy or laminotomy (partial removal of spine bones)28
Removal of tissue1-10

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
32585DCMDNeurological Surgery Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Medstar Medical Group II LLC CurrentSince May 7, 2025 Accepting new patients
Medstar Medical Group II LLC CurrentSince Jul 12, 2002 Accepting new patients
Medstar Medical Group II LLC CurrentSince May 7, 2025 Accepting new patients
MGMC, LLC Current Accepting new patients
Medstar Medical Group II LLC CurrentSince Jul 12, 2002 Accepting new patients
Medstar Georgetown Medical Center, Inc Past Accepting new patients
Frederick Health Hospital Inc Past Accepting new patients
Medstar Medical Group II LLC Past Accepting new patients
Medstar - Georgetown Medical Center, Inc. Past Accepting new patients

Locations

3800 Reservoir Rd NW
Fl 6
Washington, DC 20007
Phone (202) 687-8188

3800 Reservoir Rd NW
Washington, DC 20007
Phone (202) 687-2203

1145 19th St NW
Ste 311
Washington, DC 20036
Phone (202) 429-2401

3800 Reservoir Rd NW
#1
Washington, DC 20007
Phone (202) 444-8612

Organizations & group practices 10

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.

Hospital & facility affiliations 4

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

NPI Registry JSON

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

{
    "created_epoch": "1121644800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1331164800000",
    "number": "1609875137",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 418283",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "022418283",
            "telephone_number": "703-558-1544"
        },
        {
            "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": "202-444-4972"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "KALHORN",
        "first_name": "CHRISTOPHER",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-07-18",
        "last_updated": "2012-03-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207T00000X",
            "taxonomy_group": "",
            "desc": "Neurological Surgery",
            "state": "DC",
            "license": "32585",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Washington, DC

Sources for this page

Verify at the official NPI Registry.