TriCare: Getting Your 97151 Assessment Authorization
Last updated: July 28, 2026
CPT 97151 covers the initial ABA assessment conducted by a BCBA. Under TRICARE West, families usually must initiate or support the authorization process. The steps below are the most reliable paths to getting approved quickly.
A Note on Alpaca Support
Alpaca will also attempt to reach out to TRICARE on your behalf to help move the authorization process forward. That said, parent or caregiver initiated requests are usually the fastest and most reliable pathway, especially for initial 97151 authorizations. TRICARE often requires confirmation or action directly from the family, which is why we strongly encourage parents to make the initial call whenever possible.
Before You Start: Information You Will Need
Have this ready before making any calls or submitting requests.
Rendering / Group Information
Group Name: Alpaca Health
Group NPI: 1386460848
EIN: 99-1064613
Fax: (302) 274-0656
Corporate Headquarters
5049 Edwards Ranch Rd, STE 400
Fort Worth, TX 76109-4139
Clinical Requirements
Autism diagnosis from an approved provider
Referring provider information (usually the child’s PCM)
Parent or caregiver available to engage with TRICARE
Path 1: Call the Autism Care Navigator (Recommended First Step)
This is usually the fastest and cleanest route.
Who calls
The parent or caregiver
What to do
Call the TRICARE West Autism Care Navigator.
State that the child has an autism diagnosis and needs an initial ABA assessment.
Request authorization for CPT 97151.
Provide your practice’s group NPI and contact information if asked.
Why this works
Autism Care Navigators specialize in ABA and understand the 97151 process.
They coordinate between TRICARE, the PCM, and the provider.
Tip
Encourage families to take notes and ask where the request is being routed.
Path 2: Call TRICARE West Directly
Use this if the family cannot reach their Autism Care Navigator or needs follow-up.
Who calls
Parent or caregiver
Practice admin can be on the line for support if the family allows
What to say
“My child has an autism diagnosis and we are requesting authorization for an initial ABA assessment under CPT 97151 with a TRICARE-authorized provider.”
Be ready to provide
Child’s sponsor information
Diagnosis confirmation
Your group NPI and fax number
What to ask
Has a referral been received
Does the PCM referral need to be submitted or resent
Expected turnaround time
Path 3: Ask the Primary Care Manager (PCM) for a Referral
This is required in many cases and often the missing step.
Who contacts the PCM
Parent or caregiver
What to ask the PCM
Submit a referral for Applied Behavior Analysis
Specifically note initial ABA assessment (CPT 97151)
Key reminder for families
The PCM referral is not the authorization itself, but TRICARE usually will not approve 97151 without it.
After the Request Is Submitted
What to expect
Authorizations are typically issued as a one-time cap of 16 units (4 hours)
These units must be used within a 14-day window starting from the first 97151 date of service
Unused units expire at the end of the 14-day window and do not roll over
Follow-up best practice
If no update in 7 to 10 business days, the family should call TRICARE or the Autism Care Navigator again
Reference that this is an initial ABA assessment pending review
Common Reasons for Delays
PCM referral missing or incomplete
Diagnosis documentation not attached
Mismatch between provider name, NPI, or address
TRICARE waiting on parent confirmation
Pro Tip for Practice Owners
Proactively coach families on these calls. Many delays happen because families do not know the right language to use. A short prep email or call script can reduce authorization time by weeks.
If you need help verifying referral status or troubleshooting a stuck authorization, you can coordinate internally using the Harvi group information listed above.