Doctor profile · Federal record

Dr. Patrick Mastin, MD

Rheumatology Physician · Knoxville, TN

  • NPI 1811251655
  • 14 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
8975 Executive Park Dr Ste 200
Knoxville, TN 379234727
(865) 691-4100
fax (833) 908-2116
Mailing address
1275 Dick Lonas RD Unit 101
Knoxville, TN 379091383

Credentials & registration

NPPES · NUCC
NPI registered
June 2012 — 14 yrs on file
Profile last updated
July 20, 2021
Specialty taxonomy
207RR0500X — NUCC code
State license (1)
Tennessee #51030

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1811251655. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
21,427
Distinct HCPCS
10
Medicare allowed
$279,763
HCPCS Description Services Patients Avg allowed
J0717 Injection, certolizumab pegol, 1 mg (code may be used for medicare when drug administered under the direct supervision of a physician, not for use when drug is self administered) 15,200 22 $5
J1602 Injection, golimumab, 1 mg, for intravenous use 2,350 12 $14
J0129 Injection, abatacept, 10 mg (code may be used for medicare when drug administered under the direct supervision of a physician, not for use when drug is self administered) 1,750 13 $43
36415 Insertion of needle into vein for collection of blood sample 406 344 $8
99214 Established patient office or other outpatient visit, 30-39 minutes 384 311 $117
80053 Blood test, comprehensive group of blood chemicals 184 176 $10
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 181 175 $7
73120 X-ray of hand, 2 views 142 71 $28
86140 Measurement c-reactive protein for detection of infection or inflammation 142 140 $5
99213 Established patient office or other outpatient visit, 20-29 minutes 136 129 $82

In context: peer comparison

Among 5 peers in Knoxville Rheumatology Physician, average services per provider: 648. This provider delivers 33× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$50
Transactions
3
Manufacturers
3
Payer (manufacturer) Industry Txns Amount
Novartis Pharmaceuticals Corporation 1 $17.80
Amgen INC. 1 $16.85
Aurinia Pharma U.S., INC. 1 $14.92

By nature of payment

Food and Beverage
$50

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,497
Patients
664
Total drug cost
$343,254
Drug Type Claims Patients Total cost
Methotrexate (Methotrexate Sodium) Brand 296 153 $10,936
Prednisone Generic 277 120 $2,999
Hydroxychloroquine Sulfate Generic 271 124 $12,435
Meloxicam Generic 105 52 $585
Gabapentin Generic 82 30 $717
Celecoxib Generic 70 28 $2,482
Leflunomide Generic 70 33 $3,543
Baclofen Generic 47 19 $651
Allopurinol Generic 43 20 $465
Cyclobenzaprine Hcl Generic 43 15 $511

Frequently asked questions

Auto-generated from federal data
What is Dr. Patrick Mastin's medical specialty?
Dr. Patrick Mastin practices Rheumatology Physician in Knoxville, TN.
Where does Dr. Patrick Mastin practice?
Dr. Patrick Mastin practices at 8975 Executive Park Dr Ste 200, Knoxville, TN 379234727. Office phone: 8656914100.
What is Dr. Patrick Mastin's NPI?
Dr. Patrick Mastin's National Provider Identifier (NPI) is 1811251655, issued by NPPES.
What procedures does Dr. Patrick Mastin commonly perform?
Top Medicare-reported procedures in 2023: Injection, certolizumab pegol, 1 mg (code may be used for medicare when drug administered under the direct supervision of a physician, not for use when drug is self administered) (HCPCS J0717); Injection, golimumab, 1 mg, for intravenous use (HCPCS J1602); Injection, abatacept, 10 mg (code may be used for medicare when drug administered under the direct supervision of a physician, not for use when drug is self administered) (HCPCS J0129). Source: CMS Medicare Physician & Other Practitioners file.