NPIMap

Individual provider Active NPI

Steven R Tolkan, MD

  • Nephrology Physician
  • Fairfield, CA
National Provider Identifier
1871554766
Registry record updated Apr 24, 2014
On this page

Key facts

NPPES NPI Registry
Primary specialty
Nephrology PhysicianTaxonomy code 207RN0300X
License
G83696 Issued in CA
Practice address
1525 Webster St Ste a
Fairfield, CA 94533-4935
Phone
(707) 423-2506
Fax
(707) 429-1158
NPI assigned
Mar 30, 2006
Last updated
Apr 24, 2014By the provider in NPPES
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Apr 24, 2014

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X G83696 CA
Nephrology Physician 207RN0300X G83696 CA Primary

Addresses

Primary practice location

1525 Webster St Ste a
Fairfield, CA 94533-4935

Mailing address

1525 Webster St Ste a
Fairfield, CA 94533-4935
Phone (707) 423-2510

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA
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
I20081027000652 CA Practitioner - NephrologyPractitioner - Internal Medicine 5294893707 Practice locations: Fairfield, CA; Napa, CA

Care Compare profile

Medicare Care Compare
Specialty
NephrologyAlso: Internal Medicine
Education
University of Wisconsin School of Medicine, 1973
Medicare assignment
May accept Medicare assignment

Practice addresses (Care Compare)

1261 Travis Blvd
Suite 170
Fairfield, CA 94533-4825
Phone (707) 252-8407

3443 Villa LN
Suite 6
Napa, CA 94558-6417
Phone (707) 252-8407

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
83696CAMDMarriage & Family Therapist
G83696CAMDNephrology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Thomas J. Mampalam, M.D. a Professional Corporation Past Accepting new patients
Davita Nephrology Medical Associates of Ca, Inc. Internal Medicine Past Accepting new patients
Davita Nephrology Medical Associates of Ca, Inc. Internal Medicine PastSince Aug 1, 2007 Accepting new patients
Teodoro P. Nissen M.D., Inc Past Accepting new patients
Ong Rubin Shahmir a Medical Corporation Nephrology Past Accepting new patients

Interoperability endpoints

  • Direct secure messaging: napavalleynephrology&internalmed.steventolkan@149672.advancedmd-direct.com

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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

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": "1143676800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1398297600000",
    "number": "1871554766",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1525 WEBSTER ST STE A",
            "city": "FAIRFIELD",
            "state": "CA",
            "postal_code": "945334935",
            "telephone_number": "707-423-2510",
            "fax_number": "707-425-4236"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1525 WEBSTER ST STE A",
            "city": "FAIRFIELD",
            "state": "CA",
            "postal_code": "945334935",
            "telephone_number": "707-423-2506",
            "fax_number": "707-429-1158"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "TOLKAN",
        "first_name": "STEVEN",
        "middle_name": "R",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2006-03-30",
        "last_updated": "2014-04-24",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "G83696",
            "primary": false
        },
        {
            "code": "207RN0300X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Nephrology",
            "state": "CA",
            "license": "G83696",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Fairfield, CA

Sources for this page

Verify at the official NPI Registry.