Individual provider Active NPI

Lee Irwin Blecher, MD

  • Family Medicine Physician
  • Fairfax, VA
National Provider Identifier
1336133875
Registry record updated Apr 22, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Family Medicine PhysicianTaxonomy code 207Q00000X
License
0101232803 Issued in VA
Practice address
3650 Joseph Siewick Dr
Ste 400
Fairfax, VA 22033-1710
Phone
(703) 391-2020
Fax
(703) 391-1211
NPI assigned
Sep 9, 2005
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Apr 22, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Family Medicine Physician 207Q00000X 0101232803 VA Primary

Addresses

Primary practice location

3650 Joseph Siewick Dr
Ste 400
Fairfax, VA 22033-1710

Mailing address

PO Box 37174
Baltimore, MD 21297-3174
Phone (571) 423-5699

Other identifiers 2

IdentifierTypeStateIssuer
080188278OtherRR MEDICARE
05644143MedicaidVA

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address lblecher24831@soc.inova.org Health Information Exchange (HIE) Inova Physician Partners, LLC

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in VA, DC2 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

Enrollment IDStateProvider typePAC IDDetails
I20110505000621 VA Practitioner - Family Practice 9335324334 Reassigns benefits to 1 organization
I20120503000239 DC Practitioner - Family Practice 9335324334 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Family Practice
Education
Other, 1998
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Inova Physician Partners LLCGroup PAC ID 2466581772, 258 clinicians

Practice addresses (Care Compare)

3600 Joseph Siewick Dr
Fairfax, VA 22033-1709
Phone (703) 391-3600

3914 Centreville Rd
Suite 250
Chantilly, VA 20151-3290
Phone (703) 435-1223

Hospital & facility affiliations

Procedures performed for Medicare patients

ProcedureNumber of procedures
Removal of skin lesions1-10
Removal of nail tissue1-10
Removal or shaving of skin growth1-10
Skin biopsy1-10

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Privia Medical Group, LLC CurrentSince Jun 15, 2015 Accepting new patients
Privia Medical Group, LLC Family Medicine CurrentSince Jun 15, 2015 Accepting new patients
Inova Physician Partners, LLC Family Medicine CurrentSince Jun 25, 2020 Accepting new patients
Inova Physician Partners, Inc. - Specialists Past Accepting new patients
Frederick Health Hospital Inc Past Accepting new patients

Locations

9470 Annapolis Rd
Ste 309
Lanham, MD 20706
Phone (202) 832-1800

20905 Professional Plz
Ste 330
Ashburn, VA 20147
Phone (703) 726-0003

3914 Centreville Rd
Ste 250
Chantilly, VA 20151
Phone (703) 435-1223

3650 Joseph Siewick Dr
Ste 101
Fairfax, VA 22033
Phone (703) 391-0900

3650 Joseph Siewick Dr
Ste 400
Fairfax, VA 22033
Phone (703) 391-2020

740 E Main St
Purcellville, VA 20132
Phone (540) 338-4995

115 Park St SE
Ste 300
Vienna, VA 22180
Phone (703) 255-9100

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 6

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": "1126224000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1776816000000",
    "number": "1336133875",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 37174",
            "city": "BALTIMORE",
            "state": "MD",
            "postal_code": "212973174",
            "telephone_number": "571-423-5699",
            "fax_number": "571-423-5698"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3650 JOSEPH SIEWICK DR",
            "address_2": "STE 400",
            "city": "FAIRFAX",
            "state": "VA",
            "postal_code": "220331710",
            "telephone_number": "703-391-2020",
            "fax_number": "703-391-1211"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "BLECHER",
        "first_name": "LEE",
        "middle_name": "IRWIN",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-09-09",
        "last_updated": "2026-04-22",
        "certification_date": "2026-04-22",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "VA",
            "license": "0101232803",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "RR MEDICARE",
            "identifier": "080188278",
            "state": null
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "05644143",
            "state": "VA"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "lblecher24831@soc.inova.org",
            "affiliation": "Y",
            "endpointDescription": "Health Information Exchange",
            "affiliationName": "Inova Physician Partners, LLC",
            "use": "HIE",
            "useDescription": "Health Information Exchange (HIE)",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "CCDA",
            "address_1": "3650 Joseph Siewick Dr",
            "address_2": "Ste 400",
            "city": "Fairfax",
            "state": "VA",
            "country_code": "US",
            "postal_code": "220331710",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Fairfax, VA

Sources for this page

Verify at the official NPI Registry.