Active NPI
Leonard Krzykowski, CRNA
- Certified Registered Nurse Anesthetist
- Dallas, TX
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Certified Registered Nurse Anesthetist
- License
- 1120723
- Practice address
- 12222 Merit Dr Ste 600
Dallas, TX 75251-3294 - Phone
- (972) 715-5000
- Fax
- (972) 715-9976
- NPI assigned
- Jun 15, 2016
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 3
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Certified Registered Nurse Anesthetist | 367500000X | R 235004-6 | MN | |
| Certified Registered Nurse Anesthetist | 367500000X | 1934 | MN | |
| Certified Registered Nurse Anesthetist | 367500000X | 1120723 | TX | Primary |
Addresses
Primary practice location
12222 Merit Dr Ste 600
Dallas, TX 75251-3294
Mailing address
PO Box 840853
Dallas, TX 75284-0001
Phone (972) 233-1999
Other practice location 1
200 1st St SW
Rochester, MN 55905-0001
Phone (507) 284-2511
Other practice location 2
3705 Medical Pkwy Ste 570
Austin, TX 78705-1024
Phone (972) 715-5000
Other practice location 3
10999 W Interstate 10 Ste 903
San Antonio, TX 78230-1747
Phone (972) 715-5000
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in TX
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Certified Registered Nurse Anesthetist (Crna)
- Education
- Other, 2016
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
1201 W 38TH St
Austin, TX 78705-1006
Phone (512) 324-1000
Hospital & facility affiliations
- Ascension Seton Williamson
- Dell Seton Med Center at the University of TX
- Ascension Seton Medical Center Austin
- Ascension Seton Northwest
- Ascension Seton Cedar Park
Merit-based Incentive Payment System (MIPS)
- Final score
- 88.94 of 100
- Quality
- 91.31
- Improvement activities
- 40
- Cost
- 79.05
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 1934 | MN | MD | Certified Registered Nurse Anesthetist |
| R 235004-6 | MN | MD | Certified Registered Nurse Anesthetist |
| 1120723 | TX | MD | Certified Registered Nurse Anesthetist |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| U. S. Anesthesia Partners of Texas, P.a., | Nurse Anesthetist, Certified Registered | Current | Accepting new patients |
| U S Anesthesia Partners of Texas, PA | Nurse Anesthetist, Certified Registered | Current | Accepting new patients |
Locations
1201 W 38th St
Austin, TX 78705
Phone (512) 324-1058
3705 Medical Pkwy
Ste 570
Austin, TX 78705
Phone (512) 454-2454
4900 Mueller Blvd
Austin, TX 78723
Phone (512) 324-0165
12222 Merit Dr
Ste 600
Dallas, TX 75251
Phone (972) 361-1844
100 Medical Dr
Lake Jackson, TX 77566
Phone (713) 496-7555
10999 W Interstate 10
Ste 903
San Antonio, TX 78230
Phone (210) 375-7790
9250 Pinecroft Dr
Shenandoah, TX 77380
Phone (281) 364-2300
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.
-
- Anesthesiology Physician
- Houston, TX
- NPI 1548208564
Nurse Anesthetist, Certified Registered
-
- Interventional Pain Medicine Physician
- Addison, TX
- NPI 1053800391
Nurse Anesthetist, Certified Registered
Hospital & facility affiliations 5
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Austin, TX
- NPI 1093810327
-
- General Acute Care Hospital
- Austin, TX
- NPI 1124137054
-
- General Acute Care Hospital
- Austin, TX
- NPI 1164526786
-
- General Acute Care Hospital
- Round Rock, TX
- NPI 1578780870
-
- General Acute Care Hospital
- Cedar Park, TX
- NPI 1376662296
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1465948800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1765411200000",
"number": "1447600010",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 840853",
"city": "DALLAS",
"state": "TX",
"postal_code": "752840001",
"telephone_number": "972-233-1999",
"fax_number": "972-233-3666"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "12222 MERIT DR STE 600",
"city": "DALLAS",
"state": "TX",
"postal_code": "752513294",
"telephone_number": "972-715-5000",
"fax_number": "972-715-9976"
}
],
"practiceLocations": [
{
"address_1": "200 1st St SW",
"address_purpose": "LOCATION",
"city": "Rochester",
"state": "MN",
"postal_code": "559050001",
"country_code": "US",
"telephone_number": "507-284-2511",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "3705 Medical Pkwy Ste 570",
"address_purpose": "LOCATION",
"city": "Austin",
"state": "TX",
"postal_code": "787051024",
"country_code": "US",
"telephone_number": "972-715-5000",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "10999 W Interstate 10 Ste 903",
"address_purpose": "LOCATION",
"city": "San Antonio",
"state": "TX",
"postal_code": "782301747",
"country_code": "US",
"telephone_number": "972-715-5000",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "KRZYKOWSKI",
"first_name": "LEONARD",
"credential": "CRNA",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2016-06-15",
"last_updated": "2025-12-11",
"certification_date": "2025-12-11",
"status": "A"
},
"taxonomies": [
{
"code": "367500000X",
"taxonomy_group": "",
"desc": "Nurse Anesthetist, Certified Registered",
"state": "MN",
"license": "R 235004-6",
"primary": false
},
{
"code": "367500000X",
"taxonomy_group": "",
"desc": "Nurse Anesthetist, Certified Registered",
"state": "MN",
"license": "1934",
"primary": false
},
{
"code": "367500000X",
"taxonomy_group": "",
"desc": "Nurse Anesthetist, Certified Registered",
"state": "TX",
"license": "1120723",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Dallas, TX
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 11, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
- 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.