Doctor profile · Federal record

Dr. Lynn Castle, PAC

Family Medicine Physician (CMS: Physician Assistant) · Surgery Physician · Knoxville, TN

  • NPI 1780741223
  • Accepts Medicare
  • MIPS 92.6 / 100 · 2023
  • 36 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1930 Alcoa Hwy, Suite 240
Knoxville, TN 379201500
(865) 305-9620
fax (865) 305-9168
Mailing address
207 Kathryn Dr
Seymour, TN 378656113

Credentials & registration

NPPES · NUCC
NPI registered
January 2007 — 19 yrs on file
Profile last updated
May 24, 2012
Year of graduation
1990 — 36 yrs since
Specialty taxonomy
207Q00000X — NUCC code
State licenses (2)
Tennessee #TND00000001152 · Tennessee #PA0000000556

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1780741223. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
109
Distinct HCPCS
1
Medicare allowed
$10,049
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 109 52 $92

In context: peer comparison

Among 70 peers in Knoxville Family Medicine Physician, average services per provider: 83. This provider delivers 1.3× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$405
Transactions
18
Manufacturers
13
Payer (manufacturer) Industry Txns Amount
Lilly USA, LLC 1 $54.09
Davol INC. 2 $47.30
Inspire Medical Systems, INC. 1 $46.70
Medtronic, INC. 2 $40.95
Shield Therapeutics INC 2 $38.56
Rhythm Pharmaceuticals, INC. 2 $37.14
Acera Surgical, INC. 2 $32.49
Conmed Corporation 1 $24.92
Abbvie INC. 1 $19.38
Integra LifeSciences Corporation 1 $18.27
Olympus America INC. 1 $16.44
Phathom Pharmaceuticals, INC. 1 $15.10
Teleflex LLC 1 $13.54

By nature of payment

Food and Beverage
$405

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
466
Patients
80
Total drug cost
$121,963
Drug Type Claims Patients Total cost
Famotidine Generic 74 18 $923
Ozempic (Semaglutide) Brand 72 11 $82,583
Omeprazole Generic 52 11 $597
Pantoprazole Sodium Generic 45 17 $793
Ondansetron Hcl Generic 36 11 $774
Promethazine Hcl Generic 36 12 $359
Mounjaro (Tirzepatide) Brand 26 0 $33,004
Levothyroxine Sodium Generic 25 0 $401
Ondansetron Odt (Ondansetron) Brand 22 0 $385
Sucralfate Generic 18 0 $733

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Lynn Castle's medical specialty?
Dr. Lynn Castle practices Family Medicine Physician in Knoxville, TN.
Where does Dr. Lynn Castle practice?
Dr. Lynn Castle practices at 1930 Alcoa Hwy, Knoxville, TN 379201500. Office phone: 8653059620.
What is Dr. Lynn Castle's NPI?
Dr. Lynn Castle's National Provider Identifier (NPI) is 1780741223, issued by NPPES.
Does Dr. Lynn Castle accept Medicare assignment?
Yes. Dr. Lynn Castle accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Lynn Castle commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.