Active NPI
Kathrin Mayer Troppmann, MD
- Surgery Physician
- Sacramento, CA
National Provider Identifier
1386629715
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Surgery Physician
- License
- G78391
- Practice address
- 2315 Stockton Blvd
Department of Surgery
Sacramento, CA 95817-2201 - Phone
- (916) 734-2668
- Fax
- (916) 734-3951
- NPI assigned
- Dec 8, 2005
- Sex
- Female
- Sole proprietor
- No
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 |
|---|---|---|---|---|
| Surgery Physician | 208600000X | G78391 | CA | Primary |
| Surgery Physician | 208600000X | ME 84309 | FL |
Addresses
Primary practice location
2315 Stockton Blvd
Department of Surgery
Sacramento, CA 95817-2201
Mailing address
2315 Stockton Blvd
Department of Surgery
Sacramento, CA 95817-2201
Phone (916) 734-2668
Other names 1
- Dr. Kathrin Leni Mayer
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| G78391 | CA | MD | Surgery Physician |
| ME 84309 | FL | MD | Surgery Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Regents of the Univ of Ca | Past | Accepting new patients | |
| Regents of the University of California | Past | Accepting new patients |
Organizations & group practices 2
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.
-
- Pulmonary Disease Physician
- Sacramento, CA
- NPI 1437142692
-
dba UC Davis Medical Group
- Multi-Specialty Clinic/Center
- Folsom, CA
- NPI 1154301745
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1134000000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1783900800000",
"number": "1386629715",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "2315 STOCKTON BLVD",
"address_2": "DEPARTMENT OF SURGERY",
"city": "SACRAMENTO",
"state": "CA",
"postal_code": "958172201",
"telephone_number": "916-734-2668",
"fax_number": "916-734-3951"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "2315 STOCKTON BLVD",
"address_2": "DEPARTMENT OF SURGERY",
"city": "SACRAMENTO",
"state": "CA",
"postal_code": "958172201",
"telephone_number": "916-734-2668",
"fax_number": "916-734-3951"
}
],
"practiceLocations": [],
"basic": {
"last_name": "TROPPMANN",
"first_name": "KATHRIN",
"middle_name": "MAYER",
"name_prefix": "Dr.",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2005-12-08",
"last_updated": "2026-07-13",
"status": "A"
},
"taxonomies": [
{
"code": "208600000X",
"taxonomy_group": "",
"desc": "Surgery",
"state": "CA",
"license": "G78391",
"primary": true
},
{
"code": "208600000X",
"taxonomy_group": "",
"desc": "Surgery",
"state": "FL",
"license": "ME 84309",
"primary": false
}
],
"identifiers": [],
"endpoints": [],
"other_names": [
{
"first_name": "KATHRIN",
"last_name": "MAYER",
"middle_name": "LENI",
"prefix": "DR.",
"credential": "MD",
"code": "1",
"type": "Former Name"
}
]
}Other providers in Sacramento, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.