Individual provider Active NPI

Ian Sterling Tuznik, M.D.

  • Adult Reconstructive Orthopaedic Surgery Physician
  • Travis Afb, CA
National Provider Identifier
1629310743
Registry record updated Oct 21, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Adult Reconstructive Orthopaedic Surgery PhysicianTaxonomy code 207XS0114X
License
A172139 Issued in CA
Practice address
101 Bodin Cir
60MDG/Sgcoo
Travis Afb, CA 94535
Phone
(707) 423-5394
NPI assigned
Mar 27, 2013
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Oct 21, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Orthopaedic Surgery Physician 207X00000X A172139 CA
Adult Reconstructive Orthopaedic Surgery Physician 207XS0114X A172139 CA Primary

Addresses

Primary practice location

101 Bodin Cir
60MDG/Sgcoo
Travis Afb, CA 94535

Mailing address

101 Bodin Cir BLDG 777
Travis Afb, CA 94535-1809
Phone (707) 423-3000

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA
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 1

Enrollment IDStateProvider typePAC IDDetails
I20230629000901 CA Practitioner - Orthopedic Surgery 8729342555 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
Orthopedic Surgery
Education
Georgetown University School of Medicine, 2007
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices

Practice addresses (Care Compare)

729 Pauline Court
Sonora, CA 95370
Phone (209) 588-8068

815 S Fairmont Ave
Lodi, CA 95240-5116
Phone (209) 333-1884

Hospital & facility affiliations

  • Great Valley Home Health Home health agency, Tracy, CA, CCN 559260
  • Silverline Staff Home Health Home health agency, Fremont, CA, CCN 559548
  • Adventist Health Lodi Memorial Hospital, Lodi, CA, CCN 050336

Merit-based Incentive Payment System (MIPS)

Final score
95.77 of 100Reported as apm
Quality
81.54
Promoting interoperability
100
Improvement activities
40

Merit-based Incentive Payment System (MIPS)

Final score
83.15 of 100Reported as group
Quality
64.8
Promoting interoperability
100
Improvement activities
40
Cost
68.65

Procedures performed for Medicare patients

ProcedureNumber of procedures
Hip replacement1-10
Upper limb (arm) arthroscopy (minimally invasive joint repair)1-10
Removal of tissue1-10

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
A172139CAMDAdult Reconstructive Orthopaedic Surgery Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Regents of the Univ of Ca Orthopaedic Surgery CurrentSince Aug 27, 2023 Accepting new patients
Regents of the Univ of Ca CurrentSince Aug 27, 2023 Accepting new patients
Adventist Health Physicians Network Current Accepting new patients
Adventist Health Physicians Network CurrentSince Apr 15, 2023 Accepting new patients
Regents of the Univ of Ca Current Accepting new patients
Orthopedic Trauma Surgeons of Northern California CurrentSince Oct 16, 2023 Accepting new patients
Adventist Health Physicians Network CurrentSince Apr 15, 2023 Accepting new patients
Adventist Health Heart Institute-Ukiah Past Accepting new patients
Regents of the Univ of Ca Past Accepting new patients

Locations

6620 Coyle Ave
Ste 212
Carmichael, CA 95608
Phone (916) 536-9455

815 S Fairmont Ave
Lodi, CA 95240
Phone (209) 333-1884

10850 White Rock Rd
Rancho Cordova, CA 95670

8120 Timberlake Way
Ste 112
Sacramento, CA 95823
Phone (916) 689-4889

4860 Y St
Ste 1700
Sacramento, CA 95817
Phone (916) 734-2700

4860 Y St
Sacramento, CA 95817
Phone (916) 734-2700

Networks

  • BSC 65 PLUS INDIVIDUAL MAPD

Interoperability endpoints

  • Direct secure messaging: ituznik556502@hisp.ehr.sutterhealth.org

Organizations & group practices 9

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": "1364342400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1761004800000",
    "number": "1629310743",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "101 BODIN CIR BLDG 777",
            "city": "TRAVIS AFB",
            "state": "CA",
            "postal_code": "945351809",
            "telephone_number": "707-423-3000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "101 BODIN CIR",
            "address_2": "60MDG/SGCOO",
            "city": "TRAVIS AFB",
            "state": "CA",
            "postal_code": "94535",
            "telephone_number": "707-423-5394"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "TUZNIK",
        "first_name": "IAN",
        "middle_name": "STERLING",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2013-03-27",
        "last_updated": "2025-10-21",
        "certification_date": "2025-10-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207X00000X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery",
            "state": "CA",
            "license": "A172139",
            "primary": false
        },
        {
            "code": "207XS0114X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery, Adult Reconstructive Orthopaedic Surgery",
            "state": "CA",
            "license": "A172139",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Travis Afb, CA

Sources for this page

Verify at the official NPI Registry.