Individual provider Active NPI

Kamen V Vlassakov, M.D.

  • Anesthesiology Physician
  • Houston, TX
National Provider Identifier
1972617868
Registry record updated Jan 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Anesthesiology PhysicianTaxonomy code 207L00000X
License
W2797 Issued in TX
Practice address
6411 Fannin St
Houston, TX 77030-1501
Phone
(713) 704-4000
NPI assigned
Aug 18, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jan 13, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Anesthesiology Physician 207L00000X W2797 TX Primary

Addresses

Primary practice location

6411 Fannin St
Houston, TX 77030-1501

Mailing address

6431 Fannin St Ste 5.020
Houston, TX 77030-1501
Phone (713) 500-6200

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MA, TX2 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
I20101123000373 MA Practitioner - Anesthesiology 7315133881 Reassigns benefits to 1 organization
I20260210004480 TX Practitioner - Anesthesiology 7315133881 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Anesthesiology
Education
Other, 1992
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Ut PhysiciansGroup PAC ID 8426960360, 1,744 clinicians
Brigham and Womens Physicians Organization IncGroup PAC ID 3870405988, 2,931 clinicians

Practice addresses (Care Compare)

6411 Fannin St
Houston, TX 77030-1501
Phone (713) 704-4000

70 Francis St
Boston, MA 02115-6134
Phone (857) 307-4100

Hospital & facility affiliations

  • Memorial Hermann - Texas Medical Center Hospital, Houston, TX, CCN 450068
  • Brigham and Women'S Hospital Hospital, Boston, MA, CCN 220110

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
W2797TXMDAnesthesiology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Ut Physicians Anesthesiology CurrentSince Jan 15, 2026 Accepting new patients
Ut Physicians CurrentSince Jan 15, 2026 Accepting new patients
Brigham and Women'S Hospital Current Accepting new patients

Locations

75 Francis St
Boston, MA 02115

75 Francis St
#L1
Boston, MA 02115
Phone (617) 732-8210

6431 Fannin St
Ste 5020
Houston, TX 77030
Phone (713) 500-6200

6410 Fannin St
Ste 500
Houston, TX 77030
Phone (713) 500-5714

6411 Fannin St
Houston, TX 77030
Phone (713) 500-6200

Interoperability endpoints

  • Direct secure messaging: vlassakov.kamen.bwh@direct.partners.masshiway.net

Organizations & group practices 4

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 3

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": "1155859200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1768262400000",
    "number": "1972617868",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "6431 FANNIN ST STE 5.020",
            "city": "HOUSTON",
            "state": "TX",
            "postal_code": "770301501",
            "telephone_number": "713-500-6200"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "6411 FANNIN ST",
            "city": "HOUSTON",
            "state": "TX",
            "postal_code": "770301501",
            "telephone_number": "713-704-4000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "VLASSAKOV",
        "first_name": "KAMEN",
        "middle_name": "V",
        "name_prefix": "Prof.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-08-18",
        "last_updated": "2026-01-13",
        "certification_date": "2026-01-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "TX",
            "license": "W2797",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Houston, TX

Sources for this page

Verify at the official NPI Registry.