Active NPI
Kathryn Mizera O'Neil, M.D.
- Emergency Medicine Physician
- San Diego, CA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Emergency Medicine Physician
- License
- MD.52162
- Practice address
- 34800 Bob Wilson Dr
San Diego, CA 92134-1098 - Phone
- (773) 501-9673
- NPI assigned
- Jun 19, 2012
- 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 4
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Student in an Organized Health Care Education/Training Program | 390200000X | |||
| Emergency Medicine Physician | 207P00000X | 23708 | MS | |
| Emergency Medicine Physician | 207P00000X | MD.52162 | AL | Primary |
| Emergency Medicine Physician | 207P00000X | 23241 | NV |
Addresses
Primary practice location
34800 Bob Wilson Dr
San Diego, CA 92134-1098
Mailing address
2000 Pepperell Pkwy
Opelika, AL 36801-5452
Other practice location 1
2000 Pepperell Pkwy
Opelika, AL 36801-5452
Phone (334) 749-3411
Other names 1
- Kathryn Mizera
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in GA, NV, AL
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 3
Care Compare profile
Medicare Care Compare- Specialty
- Emergency Medicine
- Education
- Rush Medical College of Rush University, 2012
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
2000 Pepperell Pkwy
Opelika, AL 36801-5452
Phone (334) 528-6610
801 E Williams Ave
Fallon, NV 89406-3052
Phone (775) 423-3151
Hospital & facility affiliations
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| MD.52162 | AL | MD | Emergency Medicine Physician |
| 23241 | NV | MD | Emergency Medicine Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Nevada Emergency Physicians PLLC | Emergency Medicine | Current | Accepting new patients |
| Georgia Emergency Physician Specialists | Emergency Medicine | Current | Accepting new patients |
| Nevada Emergency Physicians PLLC | Emergency Medicine | Current | Accepting new patients |
| Team Physicians of Nevada-Scherr, P.C. | Emergency Medicine | Current | Accepting new patients |
| Nevada Emergency Physicians PLLC | Emergency Medicine | Current | Accepting new patients |
Locations
4700 Waters Ave
Savannah, GA 31404
Phone (912) 273-1100
459 Highway 119 S
Springfield, GA 31329
Phone (912) 754-0200
801 E Williams Ave
Fallon, NV 89406
Phone (775) 423-0310
6500 Longley Ln
Reno, NV 89511
Phone (775) 331-7000
2375 E Prater Way
Sparks, NV 89434
Phone (775) 331-7000
Organizations & group practices 7
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.
-
- Emergency Medicine Physician
- Pleasanton, CA
- NPI 1073942116
NV
-
- General Acute Care Hospital
- Opelika, AL
- NPI 1073685483
-
- Emergency Medicine Physician
- Savannah, GA
- NPI 1285685156
-
- Emergency Medicine Physician
- Savannah, GA
- NPI 1306325840
-
- Emergency Medicine Physician
- Reno, NV
- NPI 1013519388
-
- Emergency Medicine Physician
- Reno, NV
- NPI 1730957275
-
- Emergency Medicine Physician
- Sparks, NV
- NPI 1790462232
Hospital & facility affiliations 2
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- Critical Access Hospital
- Fallon, NV
- NPI 1265811251
-
- General Acute Care Hospital
- Opelika, AL
- NPI 1154386431
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1340064000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1775520000000",
"number": "1114280765",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "2000 PEPPERELL PKWY",
"city": "OPELIKA",
"state": "AL",
"postal_code": "368015452"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "34800 BOB WILSON DR",
"city": "SAN DIEGO",
"state": "CA",
"postal_code": "921341098",
"telephone_number": "773-501-9673"
}
],
"practiceLocations": [
{
"address_1": "2000 Pepperell Pkwy",
"address_purpose": "LOCATION",
"city": "Opelika",
"state": "AL",
"postal_code": "368015452",
"country_code": "US",
"telephone_number": "334-749-3411",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "O'NEIL",
"first_name": "KATHRYN",
"middle_name": "MIZERA",
"credential": "M.D.",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2012-06-19",
"last_updated": "2026-04-07",
"certification_date": "2026-04-07",
"status": "A"
},
"taxonomies": [
{
"code": "390200000X",
"taxonomy_group": "",
"desc": "Student in an Organized Health Care Education/Training Program",
"state": null,
"license": null,
"primary": false
},
{
"code": "207P00000X",
"taxonomy_group": "",
"desc": "Emergency Medicine",
"state": "MS",
"license": "23708",
"primary": false
},
{
"code": "207P00000X",
"taxonomy_group": "",
"desc": "Emergency Medicine",
"state": "AL",
"license": "MD.52162",
"primary": true
},
{
"code": "207P00000X",
"taxonomy_group": "",
"desc": "Emergency Medicine",
"state": "NV",
"license": "23241",
"primary": false
}
],
"identifiers": [],
"endpoints": [],
"other_names": [
{
"first_name": "KATHRYN",
"last_name": "MIZERA",
"code": "1",
"type": "Former Name"
}
]
}
Other providers in San Diego, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 7, 2026; 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.