Active NPI
Ian Sterling Tuznik, M.D.
- Adult Reconstructive Orthopaedic Surgery Physician
- Travis Afb, CA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Adult Reconstructive Orthopaedic Surgery Physician
- License
- A172139
- 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
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| 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
Enrollment records 1
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
- Silverline Staff Home Health
- Adventist Health Lodi Memorial
Merit-based Incentive Payment System (MIPS)
- Final score
- 95.77 of 100
- Quality
- 81.54
- Promoting interoperability
- 100
- Improvement activities
- 40
Merit-based Incentive Payment System (MIPS)
- Final score
- 83.15 of 100
- Quality
- 64.8
- Promoting interoperability
- 100
- Improvement activities
- 40
- Cost
- 68.65
Procedures performed for Medicare patients
| Procedure | Number of procedures |
|---|---|
| Hip replacement | 1-10 |
| Upper limb (arm) arthroscopy (minimally invasive joint repair) | 1-10 |
| Removal of tissue | 1-10 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| A172139 | CA | MD | Adult Reconstructive Orthopaedic Surgery Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Regents of the Univ of Ca | Orthopaedic Surgery | Current | Accepting new patients |
| Regents of the Univ of Ca | Current | Accepting new patients | |
| Adventist Health Physicians Network | Current | Accepting new patients | |
| Adventist Health Physicians Network | Current | Accepting new patients | |
| Regents of the Univ of Ca | Current | Accepting new patients | |
| Orthopedic Trauma Surgeons of Northern California | Current | Accepting new patients | |
| Adventist Health Physicians Network | Current | 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
- 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.
-
- Multi-Specialty Clinic/Center
- Hanford, CA
- NPI 1063718583
-
- Orthopaedic Trauma Physician
- Carmichael, CA
- NPI 1821031741
-
- Maternal & Fetal Medicine Physician
- Sacramento, CA
- NPI 1013906973
-
- Physical Therapy Clinic/Center
- Paradise, CA
- NPI 1134092190
-
- Family Medicine Physician
- Stockton, CA
- NPI 1255956132
-
- Orthopaedic Surgery Physician
- Sacramento, CA
- NPI 1275526295
-
- Diagnostic Radiology Physician
- Sacramento, CA
- NPI 1477546406
-
- Multi-Specialty Clinic/Center
- Ukiah, CA
- NPI 1417295643
-
- Pulmonary Disease Physician
- Sacramento, CA
- NPI 1437142692
Hospital & facility affiliations 3
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- Home Health Agency
- Tracy, CA
- NPI 1902448368
-
- General Acute Care Hospital
- Lodi, CA
- NPI 1316938301
-
- Home Health Agency
- Fremont, CA
- NPI 1902371446
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
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 21, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.