Doctor profile · Federal record

Dr. Nadder Hassan, DDS

Dentist · Manassas, VA

  • NPI 1780959411
  • 14 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
9954 Liberia Ave
Manassas, VA 201107052
(703) 335-1020
fax (703) 335-2384

Credentials & registration

NPPES · NUCC
NPI registered
March 2012 — 14 yrs on file
Profile last updated
October 15, 2015
Specialty taxonomy
122300000X — NUCC code
State license (1)
Virginia #401413855

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1780959411. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$155
Transactions
3
Manufacturers
3
Payer (manufacturer) Industry Txns Amount
Straumann USA LLC 1 $122.25
BioHorizons Implant Systems Inc. 1 $19.32
Philips North America LLC 1 $13.78

By nature of payment

Entertainment
$122
Food and Beverage
$33

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
38
Patients
36
Total drug cost
$149
Drug Type Claims Patients Total cost
Amoxicillin Generic 22 22 $85
Ibuprofen Generic 16 14 $64

Frequently asked questions

Auto-generated from federal data
What is Dr. Nadder Hassan's medical specialty?
Dr. Nadder Hassan practices Dentist in Manassas, VA.
Where does Dr. Nadder Hassan practice?
Dr. Nadder Hassan practices at 9954 Liberia Ave, Manassas, VA 201107052. Office phone: 7033351020.
What is Dr. Nadder Hassan's NPI?
Dr. Nadder Hassan's National Provider Identifier (NPI) is 1780959411, issued by NPPES.