Doctor profile · Federal record

Dr. Peter Then, DMD Dr MED Dent

Periodontist · South Portland, ME

  • NPI 1003986589
  • 20 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
254 Western Avenue
South Portland, ME 04106
(207) 774-5527
fax (207) 780-1188
Mailing address
19 Vaill Point Road
Yarmouth, ME 04096

Credentials & registration

NPPES · NUCC
NPI registered
November 2006 — 20 yrs on file
Profile last updated
July 8, 2007
Specialty taxonomy
1223P0300X — NUCC code
State license (1)
Maine #3628

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1003986589. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$4,868
Transactions
7
Manufacturers
4
Payer (manufacturer) Industry Txns Amount
Align Technology, Inc. 1 $4,500.00
Straumann USA LLC 4 $188.41
Keystone Dental Inc. 1 $147.53
Geistlich Pharma, North America, Inc. 1 $32.40

By nature of payment

Honoraria
$4,500
Food and Beverage
$221
Entertainment
$148

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
458
Patients
380
Total drug cost
$1,902
Drug Type Claims Patients Total cost
Amoxicillin Generic 259 207 $926
Chlorhexidine Gluconate Generic 66 62 $315
Clindamycin Hcl Generic 59 47 $248
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 38 32 $120
Sodium Fluoride (Fluoride (Sodium)) Brand 19 18 $197
Azithromycin Generic 17 14 $97

Frequently asked questions

Auto-generated from federal data
What is Dr. Peter Then's medical specialty?
Dr. Peter Then practices Periodontist in South Portland, ME.
Where does Dr. Peter Then practice?
Dr. Peter Then practices at 254 Western Avenue, South Portland, ME 04106. Office phone: 2077745527.
What is Dr. Peter Then's NPI?
Dr. Peter Then's National Provider Identifier (NPI) is 1003986589, issued by NPPES.