Nadder Hassan, DDS
Dentist · Manassas, VA
Nadder Hassan, DDS is a dentist with a practice address in Manassas, Virginia, and NPI 1780959411, issued on Mar 13, 2012. Check the license (Virginia 401413855, as entered in NPPES) with the Virginia board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Nadder Hassan
- Credential
- DDS
- Primary taxonomy
- Dentist 122300000X
- License number
- 401413855 VA
Self-reported in NPPES; status is on the state search - Practice location
- 9954 Liberia Ave, Manassas, VA 20110
- Phone
- (703) 335-1020
- Enumerated
- Mar 13, 2012
- Record last updated
- Oct 15, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (703) 335-2384
- Entity
- Type 1 · individual
8 nearest dentist records → All 2,402 in Virginia → Look up another NPI →
Verify Nadder Hassan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Virginia board licenses this profession
Search for license 401413855Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
24% fewer Medicare Part D claims than the average dentist in 2024
65 Medicare Part D claims for 29 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D.
Most prescribed
- Amoxicillin23 claims
- Ibuprofen16 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $155.35
3 payments; by number, the most common kind was food and beverage; the largest payer was Straumann USA LLC. The 31,974 providers of this specialty with any payment received $540.36 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Nadder Hassan among 2,402 dentist records in Virginia
Nadder Hassan, DDS is one of 2,402 dentist records with a practice address in Virginia. 60% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 53% of them.
- NPI issued2012 · 53% of these records are older, 44% newer
- In a Medicare fileYes · 60% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2015 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 122300000X and a Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
37 dentist records list a practice address in Manassas
They are 37 of the 2,327 NPPES records with a practice address in Manassas, and 2,402 dentist records in Virginia.
All 2,402 in Virginia → Every provider in Manassas → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- Layla Baidas, DDSManassas, VA 201101538554126
- Thao Bui-Nguyen, D.D.S.Manassas, VA 201101124341599
- William Hillmann, DMDManassas, VA 201101447334891
- Jeremy Hodge, DMDManassas, VA 201101194891242
- James Howard, DDSManassas, VA 201101760514046
- Linda Jones, D.D.S.Manassas, VA 201101760604144
- Kelly Keefer, DMDManassas, VA 201101659625143
- Eddie Stallings, DDSManassas, VA 201101487793543
Common questions
What is Nadder Hassan, DDS's NPI number?
Nadder Hassan, DDS's National Provider Identifier (NPI) is 1780959411, issued on Mar 13, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Nadder Hassan, DDS located?
The NPPES record lists a practice address at 9954 Liberia Ave, Manassas, VA, 20110. Phone: (703) 335-1020. Providers update this record themselves, so call before visiting.
How can I verify Nadder Hassan, DDS's license?
NPPES lists Virginia license number 401413855, as entered by the provider. Search the Virginia board that licenses this profession; the NPPES record confirms identity only.
How much does Nadder Hassan, DDS prescribe under Medicare Part D?
In 2024, Nadder Hassan, DDS had 65 Medicare Part D claims for 29 beneficiaries; the average among dentist prescribers was 86. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.