Active NPI
Christopher Keilty Darnall, M.D.
- Sleep Medicine (Psychiatry & Neurology) Physician
- Austin, TX
National Provider Identifier
1225204530
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Sleep Medicine (Psychiatry & Neurology) Physician
- License
- M9242
- Practice address
- 11714 Wilson Parke Ave Ste 150
Austin, TX 78726-4061 - Phone
- (737) 247-7200
- Fax
- (512) 406-7368
- NPI assigned
- May 6, 2008
- 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 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Neurology Physician | 2084N0400X | M9242 | TX | |
| Sleep Medicine (Psychiatry & Neurology) Physician | 2084S0012X | M9242 | TX | Primary |
Addresses
Primary practice location
11714 Wilson Parke Ave Ste 150
Austin, TX 78726-4061
Mailing address
6210 E Hwy 290
Austin, TX 78723-1142
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in TX
- 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
- Sleep Medicine
- Education
- University of Mississippi School of Medicine, 2002
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
11714 Wilson Parke Ave
Suite 150
Austin, TX 78726-4061
Phone (737) 247-7200
Merit-based Incentive Payment System (MIPS)
- Final score
- 75 of 100
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| M9242 | TX | MD | Neurology Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Georgetown Durable Medical Equipment, L.P. | Past | Accepting new patients |
Interoperability endpoints
- https://fhir4.healow.com/fhir/r4/EJGEBA/Endpoint/EJGEBA
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.
-
- Family Medicine Physician
- Austin, TX
- NPI 1821157579
-
- Durable Medical Equipment & Medical Supplies
- Georgetown, TX
- NPI 1093812695
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1210032000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1780444800000",
"number": "1225204530",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "6210 E HWY 290",
"city": "AUSTIN",
"state": "TX",
"postal_code": "787231142"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "11714 WILSON PARKE AVE STE 150",
"city": "AUSTIN",
"state": "TX",
"postal_code": "787264061",
"telephone_number": "737-247-7200",
"fax_number": "512-406-7368"
}
],
"practiceLocations": [],
"basic": {
"last_name": "DARNALL",
"first_name": "CHRISTOPHER",
"middle_name": "KEILTY",
"credential": "M.D.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2008-05-06",
"last_updated": "2026-06-03",
"certification_date": "2026-06-03",
"status": "A"
},
"taxonomies": [
{
"code": "2084N0400X",
"taxonomy_group": "",
"desc": "Psychiatry & Neurology, Neurology",
"state": "TX",
"license": "M9242",
"primary": false
},
{
"code": "2084S0012X",
"taxonomy_group": "",
"desc": "Psychiatry & Neurology, Sleep Medicine",
"state": "TX",
"license": "M9242",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Austin, TX
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 3, 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.