Doctor profile · Federal record

Dr. Mark Fiss, D.M.D., M.S.

Orthodontics and Dentofacial Orthopedic Dentist · Wilmington, DE

  • NPI 1508981309
  • 19 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
4901 Limestone RD
Wilmington, DE 198081271
(302) 239-4600
fax (302) 239-9951

Credentials & registration

NPPES · NUCC
NPI registered
March 2007 — 19 yrs on file
Profile last updated
July 8, 2007
Specialty taxonomy
1223X0400X — NUCC code
State license (1)
Delaware #G10001167
Medicaid
DE #17695

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1508981309. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$426
Transactions
10
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Solventum Corporation 6 $352.29
Envista Holdings Corporation 4 $73.61

By nature of payment

Food and Beverage
$426

Frequently asked questions

Auto-generated from federal data
What is Dr. Mark Fiss's medical specialty?
Dr. Mark Fiss practices Orthodontics and Dentofacial Orthopedic Dentist in Wilmington, DE.
Where does Dr. Mark Fiss practice?
Dr. Mark Fiss practices at 4901 Limestone RD, Wilmington, DE 198081271. Office phone: 3022394600.
What is Dr. Mark Fiss's NPI?
Dr. Mark Fiss's National Provider Identifier (NPI) is 1508981309, issued by NPPES.