Active NPI
Kristen Erin Mack, APRN, NP-C
- Family Nurse Practitioner
- Fort Smith, AR
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Family Nurse Practitioner
- License
- A004798
- Practice address
- 7301 Rogers Ave
Fort Smith, AR 72903-4100 - Phone
- (479) 314-6240
- NPI assigned
- Jul 5, 2016
- 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 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Family Nurse Practitioner | 363LF0000X | A004798 | AR | Primary |
Addresses
Primary practice location
7301 Rogers Ave
Fort Smith, AR 72903-4100
Mailing address
PO Box 776084
Chicago, IL 60677-6084
Phone (479) 314-6240
Other practice location 1
3117 S 70th St
Fort Smith, AR 72903-5017
Phone (479) 785-9400 ext. 1604
Other identifiers 1
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 215150758 | Medicaid | AR |
Other names 1
- Kristen Erin Spears
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in AR
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: No
Enrollment records 2
Care Compare profile
Medicare Care Compare- Specialty
- Nurse Practitioner
- Education
- Other, 2016
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
7301 Rogers Ave
Fort Smith, AR 72903-4100
Phone (479) 314-5175
7600 Rogers Ave
Fort Smith, AR 72903-5540
Phone (479) 226-8340
Hospital & facility affiliations
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Certified Nurse Specialist, Nurse Practitioner
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| A004798 | AR | MD | Family Nurse Practitioner |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Venvisor Health of Ar PA | Current | Accepting new patients | |
| The Guidance Center - Whole Health | Family | Current | Accepting new patients |
| Mercy Clinic Fort Smith Communities | Current | Accepting new patients | |
| Mercy Clinic Fort Smith Communities | Current | Accepting new patients | |
| The Guidance Center - Van Buren Clinic | Current | Accepting new patients | |
| Western Arkansas Counseling & Guidance Center, Inc | Current | Accepting new patients | |
| Healthy Connections Inc | Past | Accepting new patients |
Locations
1202 NE McClain Rd
Bentonville, AR 72712
Phone (479) 278-4323
7001 Rogers Ave
Ste 200
Fort Smith, AR 72903
Phone (479) 314-4620
3113 S 70th St
Fort Smith, AR 72903
Phone (479) 478-6664
7301 Rogers Ave
Fort Smith, AR 72903
Phone (479) 314-4600
3117 S 70th St
Fort Smith, AR 72903
Phone 4797859400 ext. 1604
1857 Rice St
Waldron, AR 72958
Phone (479) 637-2468
Organizations & group practices 8
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
- Fort Smith, AR
- NPI 1902073620
-
- Rural Health Clinic/Center
- Searcy, AR
- NPI 1992041370
-
- Nurse Practitioner
- Bentonville, AR
- NPI 1992553028
-
- Community/Behavioral Health Agency
- Fort Smith, AR
- NPI 1326040692
-
- Endocrinology, Diabetes & Metabolism Physician
- Fort Smith, AR
- NPI 1790258002
-
- Community/Behavioral Health Agency
- Van Buren, AR
- NPI 1376718775
-
- Family Medicine Physician
- Fort Smith, AR
- NPI 1730787037
-
- Federally Qualified Health Center (FQHC)
- Malvern, AR
- NPI 1003282070
Hospital & facility affiliations 1
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Fort Smith, AR
- NPI 1568433480
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1467676800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1763337600000",
"number": "1477905214",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 776084",
"city": "CHICAGO",
"state": "IL",
"postal_code": "606776084",
"telephone_number": "479-314-6240",
"fax_number": "479-452-0275"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "7301 ROGERS AVE",
"city": "FORT SMITH",
"state": "AR",
"postal_code": "729034100",
"telephone_number": "479-314-6240"
}
],
"practiceLocations": [
{
"address_1": "3117 S 70th St",
"address_purpose": "LOCATION",
"city": "Fort Smith",
"state": "AR",
"postal_code": "729035017",
"country_code": "US",
"telephone_number": "479-785-9400 x1604",
"fax_number": "479-755-6255",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "MACK",
"first_name": "KRISTEN",
"middle_name": "ERIN",
"credential": "APRN, NP-C",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2016-07-05",
"last_updated": "2025-11-17",
"certification_date": "2025-11-17",
"status": "A"
},
"taxonomies": [
{
"code": "363LF0000X",
"taxonomy_group": "",
"desc": "Nurse Practitioner, Family",
"state": "AR",
"license": "A004798",
"primary": true
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "215150758",
"state": "AR"
}
],
"endpoints": [],
"other_names": [
{
"first_name": "KRISTEN",
"last_name": "SPEARS",
"middle_name": "ERIN",
"code": "1",
"type": "Former Name"
}
]
}
Other providers in Fort Smith, AR
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 17, 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.