BRIANNA WILLIAMSON PA-C
NPI 1316554884
Physician Assistant in Oak Ridge, TN

Active since September 28, 2020PECOS EnrolledAccepts Medicare Assignment
86.29/100
CMS Quality Rating
800 OAK RIDGE TPKE STE A101, OAK RIDGE, TN 37830(865) 483-1093 Get Directions Write a Review

NPPES record last updated: May 6, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: May 6, 2025, Apr 5, 2023, Oct 25, 2022 and 2 more (5 updates tracked since 2020).

About Brianna Williamson Pa-c NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

BRIANNA WILLIAMSON PA-C (NPI 1316554884) is an individual physician assistant in Oak Ridge, Tennessee, licensed in Tennessee (PA0000004097) and active in the NPI registry since September 2020. She is enrolled in Medicare PECOS, is affiliated with Parkwest Medical Center, and is a graduate of Other (2019).

NPPES Registry Identity

NPI1316554884
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameBRIANNA WILLIAMSONCredential: PA-C
Location Address800 OAK RIDGE TPKE STE A101Oak Ridge, TN 37830-6927
Mailing Address10200 Grand Central Ave Ste 220Owings Mills, MD 21117-4366
Sole ProprietorNo
Medical School CMSOtherGraduated 2019
Enumeration DateSeptember 28, 2020
Last NPPES UpdateMay 6, 20255 updates tracked since enumeration
NPPES CertifiedMay 6, 2025
NPI 1316554884 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License Licensed in TN · PA0000004097
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
Also ListedPhysician Assistant · SurgicalTaxonomy 363AS0400X · License PA0000004097 (TN)
800 OAK RIDGE TPKE STE A101, Oak Ridge, TN 37830

Other Identifiers 1

MedicaidQ062539TN

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Brianna Williamson Pa-c 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.

PECOS PAC ID1658783063
PECOS Enrollment IDI20201208003244
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 4

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
90 services62 patients
Surgical removal of prostate and surrounding lymph nodes using an endoscope 55866
This is a minimally invasive procedure where a small camera (endoscope) is used to remove a gland located in the lower body and nearby small filtering structures. It's done to prevent the spread of unwanted cells and improve overall health.
66 services66 patients
Removal of lymph nodes of both sides of pelvis using an endoscope 38571
This procedure involves using a small camera (endoscope) to view and remove lymph nodes from both sides of your lower torso. Lymph nodes help filter harmful substances from the body. The procedure is done to prevent the spread of certain conditions.
59 services59 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
52 services51 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Parkwest Medical Center

Acute Care Hospitals · Knoxville, TN
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number440173
Location9352 Park West BlvdKnoxville, TN 37923 · Knox County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 37830 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$81.53 typical visit price
range $52.64 – $160.89
Typical copayment $20.38 (range $13.16 – $40.22)
Most-billed visit code 99203
Established Patient
$66.01 typical visit price
range $16.72 – $131.41
Typical copayment $16.50 (range $4.18 – $32.85)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

86.29/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality88.75
Promoting Interoperability100
Improvement Activities40
Cost65.55

Other Providers at the Same Location NPPES 7

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Urology
800 OAK RIDGE TPKE STE A101
OAK RIDGE, TN 37830
Nurse Practitioner (Family)
800 OAK RIDGE TPKE STE A101
OAK RIDGE, TN 37830
Occupational Therapist
800 OAK RIDGE TPKE STE A101
OAK RIDGE, TN 37830
Physician Assistant
800 OAK RIDGE TPKE STE A101
OAK RIDGE, TN 37830
Urology
800 OAK RIDGE TPKE STE A101
OAK RIDGE, TN 37830
Radiology (Diagnostic Radiology)
800 OAK RIDGE TPKE STE A101
OAK RIDGE, TN 37830
Physician Assistant
800 OAK RIDGE TPKE STE A101
OAK RIDGE, TN 37830

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 Brianna Williamson's NPI number?

The NPI number for Brianna Williamson is 1316554884. It was assigned to this individual provider in the NPPES registry on September 28, 2020.

Where is Brianna Williamson located?

Brianna Williamson practices at 800 Oak Ridge Tpke Ste A101, Oak Ridge, TN 37830. The listed phone number is (865) 483-1093.

What is Brianna Williamson's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Brianna Williamson enrolled in Medicare?

Yes. Brianna Williamson 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.

What insurance does Brianna Williamson accept?

Health plans from BlueCross BlueShield of Tennessee and UnitedHealthcare list Brianna Williamson 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.

Is Brianna Williamson affiliated with any hospitals?

According to CMS data, Brianna Williamson is affiliated with Parkwest Medical Center.

When was this NPI record last updated?

The NPPES record for Brianna Williamson was last updated on May 6, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.