Individual provider Active NPI

Dean L Kolnick, M.D.

  • Diagnostic Radiology Physician
  • Washington, DC
National Provider Identifier
1538477906
Registry record updated Feb 18, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Diagnostic Radiology PhysicianTaxonomy code 2085R0202X
License
MD600005405 Issued in DC
Practice address
2150 Pennsylvania Ave NW
Washington, DC 20037-3201
Phone
(202) 741-3000
NPI assigned
Sep 20, 2010
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Feb 18, 2026

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

Specialties & licenses 4

Specialty (taxonomy)CodeLicenseStatePrimary
Diagnostic Radiology PhysicianGroup: 193400000X SINGLE SPECIALTY GROUP 2085R0202X ME134112 FL
Diagnostic Radiology Physician 2085R0202X MD600005405 DC Primary
Student in an Organized Health Care Education/Training Program 390200000X
Diagnostic Radiology Physician 2085R0202X 279645 NY

Addresses

Primary practice location

2150 Pennsylvania Ave NW
Washington, DC 20037-3201

Mailing address

3811 Fairfax Dr Ste 300
Arlington, VA 22203-1707
Phone (202) 741-3560

Other practice location 1

100 Woods Road
Dept. of Radiology
Valhalla, NY 10595
Phone (914) 275-5977

Other practice location 2

9582 W Colonial Drive
Lee B Cecil, CPCS
Ocoee, FL 34761
Phone (407) 363-6700

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in NY, CA, DC, MI, WI5 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 5

Enrollment IDStateProvider typePAC IDDetails
I20150713000876 NY Practitioner - Diagnostic Radiology 2769794247 Reassigns benefits to 4 organizations
I20161010002141 CA Practitioner - Diagnostic Radiology 2769794247
I20260303003919 DC Practitioner - Diagnostic Radiology 2769794247 Reassigns benefits to 1 organization
I20260402000506 MI Practitioner - Diagnostic Radiology 2769794247 Reassigns benefits to 6 organizations
I20260407003021 WI Practitioner - Diagnostic Radiology 2769794247 Reassigns benefits to 11 organizations

Care Compare profile

Medicare Care Compare
Specialty
Diagnostic Radiology
Education
Other, 2009
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Langlade Hospital - Hotel Dieu of St Joseph of Antigo WisconsinGroup PAC ID 1557271202, shared by 7 NPIs, 86 clinicians
Aspirus Medford Hospital and Clinics IncGroup PAC ID 5799688602, shared by 9 NPIs, 126 clinicians
Medical Faculty Associates, IncGroup PAC ID 4082528898, 676 clinicians
Divine Savior Healthcare IncGroup PAC ID 5799684007, 135 clinicians
Aspirus Rhinelander and Tomahawk Hospitals and Clinics, Inc.Group PAC ID 9335059856, shared by 17 NPIs, 566 clinicians

Practice addresses (Care Compare)

100 Woods Rd
Valhalla, NY 10595-1530

112 E 5TH Ave
Antigo, WI 54409-2710
Phone (715) 623-2331

135 S Gibson St
Medford, WI 54451-1622
Phone (715) 748-8100

2150 Pennsylvania Ave NW
Washington, DC 20037-3201
Phone (202) 741-2600

241 N Rd
Poughkeepsie, NY 12601-1154
Phone (845) 483-5000

2817 New Pinery Rd
Portage, WI 53901-9240
Phone (608) 742-4131

401 W Mohawk Dr
Suite 100
Tomahawk, WI 54487-2273
Phone (715) 361-2000

95 Grasslands Rd
Valhalla, NY 10595-1652
Phone (914) 493-6940

N10561 Grandview LN
Ironwood, MI 49938-9622
Phone (906) 932-2525

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
75 of 100Reported as group

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
MD600005405DCMDDiagnostic Radiology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Maimonides Faculty Practice Plan Single Specialty CurrentSince Jul 1, 2015 Accepting new patients
Medical Faculty Associates, Inc Single Specialty CurrentSince Feb 19, 2026 Accepting new patients
Maimonides Medical Center - MMC Radiology FPP Single Specialty CurrentSince Jul 1, 2015 Accepting new patients
Westchester Medical Center Advanced Physician Services, PC Single Specialty CurrentSince Feb 1, 2022 Accepting new patients
Westchester Medical Center Advanced Physician Services PC Single Specialty CurrentSince Feb 1, 2022 Accepting new patients
Lima Memorial Joint Operating Company Single Specialty Past Accepting new patients

Locations

2150 Pennsylvania Ave NW
Washington, DC 20037
Phone (202) 741-2222

848 49th St
Brooklyn, NY 11220
Phone (718) 375-6000

4802 10th Ave
Brooklyn, NY 11219
Phone (718) 283-8724

6010 Bay Pkwy
Brooklyn, NY 11204
Phone (718) 238-2100

19 Bradhurst Ave
Ste 3100N
Hawthorne, NY 10532
Phone (914) 231-8373

95 Grasslands Rd
Valhalla, NY 10595
Phone (914) 493-2961

100 Woods Rd
Valhalla, NY 10595
Phone (914) 490-7000

3811 Fairfax Dr
Ste 300
Arlington, VA 22203

Networks

  • Freedom Health HMO Network
  • Healthfirst Medicare Network H5989
  • Healthfirst Medicare Network H3359
  • Healthfirst Medicare Network H9678
  • Healthfirst Medicare Network H1722

Organizations & group practices 22

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.

View all 22

Hospital & facility affiliations 5

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": "1284940800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1771372800000",
    "number": "1538477906",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3811 FAIRFAX DR STE 300",
            "city": "ARLINGTON",
            "state": "VA",
            "postal_code": "222031707",
            "telephone_number": "202-741-3560",
            "fax_number": "202-741-3570"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2150 PENNSYLVANIA AVE NW",
            "city": "WASHINGTON",
            "state": "DC",
            "postal_code": "200373201",
            "telephone_number": "202-741-3000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "100 Woods Road",
            "address_2": "Dept. of Radiology",
            "address_purpose": "LOCATION",
            "city": "Valhalla",
            "state": "NY",
            "postal_code": "10595",
            "country_code": "US",
            "telephone_number": "914-275-5977",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "9582 W Colonial Drive",
            "address_2": "Lee B Cecil, CPCS",
            "address_purpose": "LOCATION",
            "city": "Ocoee",
            "state": "FL",
            "postal_code": "34761",
            "country_code": "US",
            "telephone_number": "407-363-6700",
            "fax_number": "407-865-6012",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KOLNICK",
        "first_name": "DEAN",
        "middle_name": "L",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2010-09-20",
        "last_updated": "2026-02-18",
        "certification_date": "2026-02-18",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0202X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "FL",
            "license": "ME134112",
            "primary": false
        },
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "DC",
            "license": "MD600005405",
            "primary": true
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "NY",
            "license": "279645",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Washington, DC

Sources for this page

Verify at the official NPI Registry.