Nancy Oy Ling Hsu, DDS
General Practice Dentistry · Rockville, MD
Nancy Oy Ling Hsu, DDS is a general practice dentistry with a practice address in Rockville, Maryland, and NPI 1306264700, issued on Apr 2, 2014. Check the license (Maryland 11806, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Nancy Oy Ling Hsu
- Credential
- DDS
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- 11806 MD
Self-reported in NPPES; status is on the state search - Practice location
- 11300 Rockville Pike Ste 1013, Rockville, MD 20852
- Phone
- (301) 231-9100
- Enumerated
- Apr 2, 2014
- Record last updated
- Mar 6, 2026
- Entity
- Type 1 · individual
8 nearest general practice dentistry records → All 2,408 in Maryland → Look up another NPI →
Also registered at 11300 Rockville Pike Ste 1013
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Navneet Dhaliwal, D.D.SGeneral Practice Dentistry1790156131
Verify Nancy Oy Ling Hsu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license 11806Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average general practice dentistry in 2024
11 Medicare Part D claims, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
Nancy Oy Ling Hsu among 2,408 general practice dentistry records in Maryland
Nancy Oy Ling Hsu, DDS is one of 2,408 general practice dentistry records with a practice address in Maryland. 62% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 74% of them.
- NPI issued2014 · 74% of these records are older, 23% newer
- In a Medicare fileYes · 62% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2026 · 72% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223G0001X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
113 general practice dentistry records list a practice address in Rockville
They are 113 of the 14,353 NPPES records with a practice address in Rockville, and 2,408 general practice dentistry records in Maryland.
All 2,408 in Maryland → Every provider in Rockville → General Practice Dentistry nationwide →
The 8 general practice dentistry records with the nearest ZIP codes
- Marvin Abramson, D.D.SRockville, MD 208521720098957
- Harold Allick, D.D.S.Rockville, MD 208521407875271
- Charles Doring, D.D.SRockville, MD 208521881766913
- L. Finamore, DDSRockville, MD 208521003881582
- Harry Gildenhorn, D.D.S.Rockville, MD 208521295742088
- Samuel Huang, D.D.S.Rockville, MD 208521427154640
- Richard Miller, DDSRockville, MD 208521629085311
- William Powell, JR.Rockville, MD 208521881708014
Common questions
What is Nancy Oy Ling Hsu, DDS's NPI number?
Nancy Oy Ling Hsu, DDS's National Provider Identifier (NPI) is 1306264700, issued on Apr 2, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Nancy Oy Ling Hsu, DDS located?
The NPPES record lists a practice address at 11300 Rockville Pike Ste 1013, Rockville, MD, 20852. Phone: (301) 231-9100. Providers update this record themselves, so call before visiting.
How can I verify Nancy Oy Ling Hsu, DDS's license?
NPPES lists Maryland license number 11806, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.
How much does Nancy Oy Ling Hsu, DDS prescribe under Medicare Part D?
In 2024, Nancy Oy Ling Hsu, DDS had 11 Medicare Part D claims; the average among general practice dentistry prescribers was 83. 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.