Hamil J. Willoughby, DDS
Oral and Maxillofacial Surgery (Dentist) · Stony Brook, NY
Hamil J. Willoughby, DDS is an oral and maxillofacial surgery (dentist) with a practice address in Stony Brook, New York, and NPI 1104074525, issued on Aug 28, 2008. Check the license (New York 027222, as entered in NPPES) with the New York board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Hamil J. Willoughby
- Credential
- DDS
- Primary taxonomy
- Oral and Maxillofacial Surgery (Dentist) 1223S0112X
- License number
- 027222 NY
Self-reported in NPPES; status is on the state search - Practice location
- 184 Sullivan Hall, Stony Brook, NY 11794
- Phone
- (631) 632-8975
- Enumerated
- Aug 28, 2008
- Record last updated
- Sep 11, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (631) 632-3747
- Entity
- Type 1 · individual
8 nearest oral and maxillofacial surgery (dentist) records → All 665 in New York → Look up another NPI →
Also registered at 184 Sullivan Hall
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Brian Howe, D.M.DGeneral Practice Dentistry1003945437
Verify Hamil J. Willoughby in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New York board licenses this profession
Search for license 027222Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average oral and maxillofacial surgery (dentist) in 2024
36 Medicare Part D claims for 23 beneficiaries, against an average of 406 among the 5,870 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Amoxicillin16 claims
- Ibuprofen14 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.
Hamil J. Willoughby among 665 oral and maxillofacial surgery (dentist) records in New York
Hamil J. Willoughby, DDS is one of 665 oral and maxillofacial surgery (dentist) records with a practice address in New York. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 63% of them.
- NPI issued2008 · 63% of these records are older, 30% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileNo · 13% of these records are
- Record last updated2012 · 71% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223S0112X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Oral and Maxillofacial Surgery (Dentist) providers in New York
There are 665 oral and maxillofacial surgery (dentist) records in New York.
All 665 in New York → Every provider in Stony Brook → Oral and Maxillofacial Surgery (Dentist) nationwide →
The 8 oral and maxillofacial surgery (dentist) records with the nearest ZIP codes
- Allan Kucine, DDSStony Brook, NY 117941649314006
- Mitchell Brookstone, DDSWantagh, NY 117931992784748
- Mike Calderon, DDSWest Islip, NY 117951376683714
- Jeffrey Goldberg, D.D.S.Syosset, NY 117911962484360
- Slava Shapiro, DDS, MDSyosset, NY 117911003015926
- Pankaj Singh, DDS, MDWoodbury, NY 117971467568733
- Guenter Jonke, DMDStony Brook, NY 117901730163106
- Daniel Kirk, M.D., D.M.D.Stony Brook, NY 117901407203417
Common questions
What is Hamil J. Willoughby, DDS's NPI number?
Hamil J. Willoughby, DDS's National Provider Identifier (NPI) is 1104074525, issued on Aug 28, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Hamil J. Willoughby, DDS located?
The NPPES record lists a practice address at 184 Sullivan Hall, Stony Brook, NY, 11794. Phone: (631) 632-8975. Providers update this record themselves, so call before visiting.
How can I verify Hamil J. Willoughby, DDS's license?
NPPES lists New York license number 027222, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.
How much does Hamil J. Willoughby, DDS prescribe under Medicare Part D?
In 2024, Hamil J. Willoughby, DDS had 36 Medicare Part D claims for 23 beneficiaries; the average among oral and maxillofacial surgery (dentist) prescribers was 406. 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.