William Thaddeus Benson, DMD
Dentist · Portland, ME
William Thaddeus Benson, DMD is a dentist with a practice address in Portland, Maine, and NPI 1184614778, issued on Oct 25, 2005. Check the license (Maine DEN4602, as entered in NPPES) with the Maine board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- William Thaddeus Benson
- Credential
- DMD
- Primary taxonomy
- Dentist 122300000X
- License numbers
- DEN4602 ME
15695 MA
Self-reported in NPPES; status is on the state search - Practice location
- 716 Stevens Ave, Portland, ME 04103
- Phone
- (978) 372-9122
- Enumerated
- Oct 25, 2005
- Record last updated
- Sep 4, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (978) 372-6131
- Entity
- Type 1 · individual
8 nearest dentist records → All 390 in Maine → Look up another NPI →
Also registered at 716 Stevens Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify William Thaddeus Benson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maine board licenses this profession
Search for license DEN4602Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
80% fewer Medicare Part D claims than the average dentist in 2024
17 Medicare Part D claims for 15 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D.
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.
William Thaddeus Benson among 390 dentist records in Maine
William Thaddeus Benson, DMD is one of 390 dentist records with a practice address in Maine. 58% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 98% newer
- In a Medicare fileYes · 58% of these records are
- In the CMS Doctors and Clinicians fileNo · 1% of these records are
- Record last updated2018 · 65% 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 Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Dentist providers in Maine
There are 390 dentist records in Maine.
All 390 in Maine → Every provider in Portland → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- Pamela Anzelc, DDSPortland, ME 041031457372716
- Nicholas ArmellinoPortland, ME 041031942302278
- Catalina Atienza, DMDPortland, ME 041031851338214
- Michael Bennett, DMDPortland, ME 041031104984970
- Mary Berube Leblanc, DMDPortland, ME 041031912065798
- Juan Bugueno, DDSPortland, ME 041031730150525
- Joel Doyon, DDSPortland, ME 041031609822634
- Gregory Fisher, DDSPortland, ME 041031467481226
Common questions
What is William Thaddeus Benson, DMD's NPI number?
William Thaddeus Benson, DMD's National Provider Identifier (NPI) is 1184614778, issued on Oct 25, 2005. An NPI identifies a provider in billing; it is not a license.
Where is William Thaddeus Benson, DMD located?
The NPPES record lists a practice address at 716 Stevens Ave, Portland, ME, 04103. Phone: (978) 372-9122. Providers update this record themselves, so call before visiting.
How can I verify William Thaddeus Benson, DMD's license?
NPPES lists Maine license number DEN4602, as entered by the provider. Search the Maine board that licenses this profession; the NPPES record confirms identity only.
How much does William Thaddeus Benson, DMD prescribe under Medicare Part D?
In 2024, William Thaddeus Benson, DMD had 17 Medicare Part D claims for 15 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.