Doctor profile · Federal record

Dr. Clarence Mast, MD

Family Medicine Physician · Meshoppen, PA

  • NPI 1902898638
  • 21 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
Route 6
Meshoppen, PA 18630
(570) 833-8300
fax (570) 833-8310
Mailing address
Rr 1 Box 3J, Hospital Dr
Towanda, PA 188489706

Credentials & registration

NPPES · NUCC
NPI registered
August 2005 — 21 yrs on file
Profile last updated
March 8, 2010
Specialty taxonomy
207Q00000X — NUCC code
State license (1)
Pennsylvania #MD 0126030E
Medicaid
PA #677564

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1902898638. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$96
Transactions
6
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
ABBVIE INC. 5 $80.27
AIMMUNE THERAPEUTICS, INC. 1 $15.34

By nature of payment

Food and Beverage
$96

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,344
Patients
480
Total drug cost
$97,426
Drug Type Claims Patients Total cost
Hydroxychloroquine Sulfate Generic 184 46 $7,113
Metronidazole Generic 171 71 $1,695
Doxycycline Hyclate Generic 156 69 $23,844
Valacyclovir (Valacyclovir Hcl) Brand 139 45 $5,498
Azithromycin Generic 137 56 $4,340
Nystatin Generic 95 32 $2,807
Minocycline Hcl Generic 76 41 $4,084
Methylprednisolone Generic 61 24 $1,925
Atovaquone Generic 60 29 $36,528
Fluconazole Generic 51 28 $1,055

Frequently asked questions

Auto-generated from federal data
What is Dr. Clarence Mast's medical specialty?
Dr. Clarence Mast practices Family Medicine Physician in Meshoppen, PA.
Where does Dr. Clarence Mast practice?
Dr. Clarence Mast practices at Route 6, Meshoppen, PA 18630. Office phone: 5708338300.
What is Dr. Clarence Mast's NPI?
Dr. Clarence Mast's National Provider Identifier (NPI) is 1902898638, issued by NPPES.