ROBERT NATHANIEL FELLER PA-C
NPI 1821803701
Physician Assistant in Knoxville, TN

Active since February 10, 2025PECOS EnrolledAccepts Medicare Assignment
1600 ACCELERATOR WAY STE 220, KNOXVILLE, TN 37920(865) 558-4400(865) 546-9047 Get Directions Write a Review

NPPES record last updated: January 14, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jan 14, 2026, Mar 31, 2025, Mar 19, 2025 and 1 more (4 updates tracked since 2025).

About Robert Nathaniel Feller Pa-c NPPES

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

ROBERT NATHANIEL FELLER PA-C (NPI 1821803701) is an individual physician assistant in Knoxville, Tennessee and active in the NPI registry since February 2025. He is enrolled in Medicare PECOS, is affiliated with University Health System, Inc, and maintains a secondary practice location in Knoxville.

NPPES Registry Identity

NPI1821803701
Entity TypeIndividualMale
Primary Taxonomy363A00000X
Provider Legal NameROBERT NATHANIEL FELLERCredential: PA-C
Location Address1600 ACCELERATOR WAY STE 220Knoxville, TN 37920-3078
Mailing Address8320 E Walker Springs Ln Ste 200Knoxville, TN 37923-3120 · (865) 769-4500 · Fax (865) 769-4501
Fax(865) 546-9047
Sole ProprietorNo
Medical School CMSLincoln Memorial University Medical DepartmentGraduated 2024
Enumeration DateFebruary 10, 2025
Last NPPES UpdateJanuary 14, 20264 updates tracked since enumeration
NPPES CertifiedJanuary 14, 2026
NPI 1821803701 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
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
1600 ACCELERATOR WAY STE 220, Knoxville, TN 37920

Secondary Practice Location 1

Location 12301 Winners DrKnoxville, TN 37920-9599 · Phone (865) 208-1100

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

Robert Nathaniel Feller 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 ID749702595
PECOS Enrollment IDI20250320003258
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.

Hospital Affiliations CMS Care Compare

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

University Health System, Inc

Acute Care Hospitals · Knoxville, TN
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number440015
Location1924 Alcoa HighwayKnoxville, TN 37920 · Knox County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 37920 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.

Other Providers at the Same Location NPPES 5

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

Physical Therapist
1600 ACCELERATOR WAY STE 220
KNOXVILLE, TN 37920
Occupational Therapist
1600 ACCELERATOR WAY STE 220
KNOXVILLE, TN 37920
Physical Therapist
1600 ACCELERATOR WAY STE 220
KNOXVILLE, TN 37920
Clinic/Center (Multi-Specialty)
1600 ACCELERATOR WAY STE 220
KNOXVILLE, TN 37920
Physical Therapist
1600 ACCELERATOR WAY STE 220
KNOXVILLE, TN 37920

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 Robert Feller's NPI number?

The NPI number for Robert Feller is 1821803701. It was assigned to this individual provider in the NPPES registry on February 10, 2025.

Where is Robert Feller located?

Robert Feller practices at 1600 Accelerator Way Ste 220, Knoxville, TN 37920. The listed phone number is (865) 558-4400.

What is Robert Feller's specialty?

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

Is Robert Feller enrolled in Medicare?

Yes. Robert Feller 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 Robert Feller accept?

Health plans from BlueCross BlueShield of Tennessee and UnitedHealthcare list Robert Feller 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 Robert Feller affiliated with any hospitals?

According to CMS data, Robert Feller is affiliated with University Health System, Inc.

When was this NPI record last updated?

The NPPES record for Robert Feller was last updated on January 14, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.