Individual provider Active NPI

Kathryn Knill, CNP

  • Family Nurse Practitioner
  • Washington, DC
National Provider Identifier
1326492042
Registry record updated Jul 30, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Family Nurse PractitionerTaxonomy code 363LF0000X
License
NP500021867 Issued in DC
Practice address
3800 Reservoir Rd NW
Washington, DC 20007-2113
Phone
(202) 451-6882
Fax
(443) 537-9913
NPI assigned
Apr 19, 2016
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jul 30, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Family Nurse Practitioner 363LF0000X NP500021867 DC Primary
Registered Nurse 163W00000X RN500021867 DC

Addresses

Primary practice location

3800 Reservoir Rd NW
Washington, DC 20007-2113

Mailing address

3800 Reservoir Rd NW
Washington, DC 20007-2113
Phone (202) 451-6882

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in OH, DC2 enrollments
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: No
Green means eligible to order or refer.

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20161006001450 OH Practitioner - Nurse Practitioner 2062700065 Reassigns benefits to 1 organization
I20250617000293 DC Practitioner - Nurse Practitioner 2062700065 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Nurse Practitioner
Education
Other, 2016
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)

110 Irving St NW
Washington, DC 20010-3017
Phone (202) 877-7000

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Certified Nurse Practitioner, Nurse Practitioner

State licenses

LicenseStateTypeSpecialty
384371OHMDRegistered Nurse
F06161804OHMDFamily Nurse Practitioner

Practice roles

OrganizationSpecialtyStatusNew patients
Ohiohealth Corporation CurrentSince May 1, 2024 Accepting new patients
Medstar Medical Group II LLC CurrentSince Jun 1, 2025 Accepting new patients
Ohiohealth Corporation Current Accepting new patients
Ohiohealth Corporation CurrentSince May 1, 2024 Accepting new patients
Lima Memorial Joint Operating Company Past Accepting new patients

Locations

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

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

110 Irving St NW
Washington, DC 20010
Phone (202) 877-2000

500 Thomas Ln
Ste 1A
Columbus, OH 43214
Phone (614) 566-1600

Dept L3652
Columbus, OH 43260

393 E Town St
Ste 116
Columbus, OH 43215
Phone (614) 566-9108

Organizations & group practices 5

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 2

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": "1461024000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1785369600000",
    "number": "1326492042",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3800 RESERVOIR RD NW",
            "city": "WASHINGTON",
            "state": "DC",
            "postal_code": "200072113",
            "telephone_number": "202-451-6882",
            "fax_number": "443-537-9913"
        },
        {
            "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": "202-451-6882",
            "fax_number": "443-537-9913"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "KNILL",
        "first_name": "KATHRYN",
        "credential": "CNP",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2016-04-19",
        "last_updated": "2026-07-30",
        "certification_date": "2026-07-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "DC",
            "license": "NP500021867",
            "primary": true
        },
        {
            "code": "163W00000X",
            "taxonomy_group": "",
            "desc": "Registered Nurse",
            "state": "DC",
            "license": "RN500021867",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Washington, DC

Sources for this page

Verify at the official NPI Registry.