WILLIAM MICHAEL HILLNER PHD
NPI 1699748954
Psychologist - Forensic in Chattanooga, TN
About William Michael Hillner Phd NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WILLIAM MICHAEL HILLNER PHD (NPI 1699748954) is an individual forensic provider in Chattanooga, Tennessee, licensed in Georgia (1243) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1976).
NPPES Registry Identity
Specialties & Licenses 5
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
William Michael Hillner Phd is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show William Hillner reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Chattanooga, TN 37421
- Reassigned Medicare billing, Georgia and Tennessee enrollments
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Other Providers at the Same Location NPPES 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is William Hillner's NPI number?
The NPI number for William Hillner is 1699748954. It was assigned to this individual provider in the NPPES registry on February 8, 2006.
Where is William Hillner located?
William Hillner practices at 7302 Jarnigan Rd, Chattanooga, TN 37421. The listed phone number is (423) 855-4091.
What is William Hillner's specialty?
The primary specialty registered for this NPI is Psychologist, specializing in Forensic, with taxonomy code 103TF0200X.
Is William Hillner enrolled in Medicare?
Yes. William Hillner is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for William Hillner's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Hillner reassigns Medicare benefits to William M. Hillner, Ph.D., PC (Chattanooga, TN). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for William Hillner's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does William Hillner accept?
Health plans from BlueCross BlueShield of Tennessee, Oscar Insurance Company and UnitedHealthcare list William Hillner as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for William Hillner was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# William Michael Hillner, PHD · NPI 1699748954
Forensic provider in Chattanooga, Tennessee. Individual provider, active in the CMS NPPES registry since February 8, 2006.
## Identity
- **NPI:** 1699748954 (Entity type: Individual)
- **Enumerated:** February 8, 2006
- **Primary specialty:** Psychologist - Forensic · taxonomy 103TF0200X
- **State license:** 1243 (Georgia)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 7302 JARNIGAN RD, Chattanooga, TN 37421-3042
- **Phone:** (423) 855-4091 · **Fax:** (423) 855-8928
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** William M. Hillner, Ph.D., PC (NPI 1811171739, Chattanooga, TN), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1976
## Record status
- **NPPES last updated:** September 11, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1699748954) · Data from the CMS NPPES public registry.