1. Home
  2. Directory
  3. Tennessee
  4. Knoxville
  5. Nurse Practitioner
  6. NPI Profile

KATHERINE KOTSIANAS MASSEY MSN, FNP-BC
NPI 1194458620
Nurse Practitioner - Family in Knoxville, TN

Active since July 01, 2022PECOS EnrolledAccepts Medicare Assignment
100/100
CMS Quality Rating
10215 KINGSTON PIKE STE 100, KNOXVILLE, TN 37922(865) 691-0733 Get Directions Write a Review

NPPES record last updated: February 15, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jul 25, 2022, Jul 18, 2022, Jul 8, 2022 (3 updates tracked since 2022).

About Katherine Kotsianas Massey Msn, Fnp-bc NPPES

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

KATHERINE KOTSIANAS MASSEY MSN, FNP-BC (NPI 1194458620) is an individual family provider in Knoxville, Tennessee, licensed in Tennessee (31951) and active in the NPI registry since July 2022. She is enrolled in Medicare PECOS, is affiliated with Fort Loudoun Medical Center, and maintains a secondary practice location in Franklin.

NPPES Registry Identity

NPI1194458620
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameKATHERINE KOTSIANAS MASSEYCredential: MSN, FNP-BC
Location Address10215 KINGSTON PIKE STE 100Knoxville, TN 37922-3492
Mailing Address1275 Dick Lonas Rd Unit 101Knoxville, TN 37909-1383 · (865) 584-4747 · Fax (865) 381-1509
Phone(865) 691-0733
Sole ProprietorNo
Medical School CMSOtherGraduated 2022
Enumeration DateJuly 1, 2022
Last NPPES UpdateFebruary 15, 20243 updates tracked since enumeration
NPPES CertifiedFebruary 15, 2024
✔ NPI 1194458620 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in TN · 31951
10215 KINGSTON PIKE STE 100, Knoxville, TN 37922
Open in Google Maps ↗

Secondary Practice Location 1

Location 13054 Columbia AveFranklin, TN 37064-7424 · Phone (615) 550-0091

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter Health, Ambetter of Alabama and more.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

Katherine Kotsianas Massey Msn, Fnp-bc 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 ID4486036621
PECOS Enrollment IDI20220803003880
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.

Medicare Billing Reassignments

2

Medicare enrollment records show Katherine Massey reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Summit Medical Group, PLLC
0.1 mi
Internal Medicine
10215 KINGSTON PIKE, SUITE 100
Knoxville, TN 37922
  • Reassigned Medicare billing, Tennessee enrollment
  • 1,003 clinicians in this Medicare group
NPI 1215016506 (865) 691-0733
The Little Clinic Of Tennessee LLC
147 mi
Family
510 HIGHWAY 76
White House, TN 37188
  • Reassigned Medicare billing, Tennessee enrollment
  • 341 clinicians in this Medicare group
NPI 1487848800 (615) 581-5089

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 11

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.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
192 services153 patients
Insertion of needle into vein for collection of blood sample 36415
This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.
79 services57 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
65 services51 patients
Blood test, comprehensive group of blood chemicals 80053
A comprehensive group of blood chemicals test, also known as a comprehensive metabolic panel, is a blood test that measures your sugar level, electrolyte and fluid balance, kidney function, and liver function. This helps to check your body's overall health.
59 services46 patients
Automated urinalysis test 81003
An automated urinalysis test is a routine examination that checks your urine for various substances. It can help identify potential health issues such as kidney problems or diabetes. The test uses a machine to analyze a small urine sample, providing quick and accurate results.
55 services41 patients
Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 85025
A Complete Blood Cell Count is a common test that measures various components of the blood, including red cells (carry oxygen), white cells (fight infection), and platelets (help blood clot). An automated test ensures accuracy. The differential count provides detailed information about white cell types.
49 services42 patients

Hospital Affiliations CMS Care Compare

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

Fort Loudoun Medical Center

Acute Care Hospitals · Lenoir City, TN
5/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number440110
Location550 Fort Loudon Medical Center DrLenoir City, TN 37772 · Loudon County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 37922 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
$93.60 typical visit price
range $16.72 – $131.41
Typical copayment $23.40 (range $4.18 – $32.85)
Most-billed visit code 99214
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.

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

Other Providers at the Same Location NPPES 6

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

HEATHER DIANE SAUNDERS APRN
Nurse Practitioner (Family)
10215 KINGSTON PIKE STE 100
KNOXVILLE, TN 37922
Knox County (865) 691-0733
KRISTY LYNN RUCKER R.N., M.S.N., F.N.P,
Nurse Practitioner (Family)
10215 KINGSTON PIKE STE 100
KNOXVILLE, TN 37922
Knox County (865) 691-0733
MS. JENNA LEE FOWLKES PA-C
Physician Assistant
10215 KINGSTON PIKE STE 100
KNOXVILLE, TN 37922
Knox County (865) 691-0733
DR. BRANDON WAYNE LANCASTER M.D.
Family Medicine
10215 KINGSTON PIKE STE 100
KNOXVILLE, TN 37922
Knox County (865) 691-0733
JENNIFER GAIL STROPE NP-C
Nurse Practitioner (Family)
10215 KINGSTON PIKE STE 100
KNOXVILLE, TN 37922
Knox County (865) 691-0733
PHILIP ALEXANDER GAUSLIN P.A.-C
Physician Assistant
10215 KINGSTON PIKE STE 100
KNOXVILLE, TN 37922
Knox County (865) 691-0733

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 Katherine Massey's NPI number?

The NPI number for Katherine Massey is 1194458620. It was assigned to this individual provider in the NPPES registry on July 1, 2022.

Where is Katherine Massey located?

Katherine Massey practices at 10215 Kingston Pike Ste 100, Knoxville, TN 37922. The listed phone number is (865) 691-0733.

What is Katherine Massey's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Katherine Massey enrolled in Medicare?

Yes. Katherine Massey 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 organizations bill Medicare for Katherine Massey's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Katherine Massey reassigns Medicare benefits to 2 organizations: Summit Medical Group, PLLC (Knoxville, TN) and The Little Clinic Of Tennessee LLC (White House, TN). Each 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 Katherine Massey's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Katherine Massey accept?

Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter of Alabama, Ambetter of North Carolina and Ambetter of Tennessee and 2 other insurers list Katherine Massey 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 Katherine Massey affiliated with any hospitals?

According to CMS data, Katherine Massey is affiliated with Fort Loudoun Medical Center.

When was this NPI record last updated?

The NPPES record for Katherine Massey was last updated on February 15, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years 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.