William E. Hassett, MD
Family Medicine Physician · Dover, NH
William E. Hassett, MD is a family medicine physician with a practice address in Dover, New Hampshire, and NPI 1386683001, issued on Jun 6, 2006. Check the license (New Hampshire 9418, as entered in NPPES) on the New Hampshire Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- William E. Hassett
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 9418 NH
Self-reported in NPPES; status is on the state search - Practice location
- 10 Members Way, Dover, NH 03820
- Phone
- (603) 742-3174
- Enumerated
- Jun 6, 2006
- Record last updated
- Feb 20, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (603) 742-1855
- Medicaid IDs
- 1386683001 ME
3075042 NH - Medicare enrollment
- Enrolled (PECOS I20050526000073); accepts Medicare assignment
- Medical or professional school
- Georgetown University School Of Medicine, 1988
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 816 in New Hampshire → Look up another NPI →
Also registered at 10 Members Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify William E. Hassett in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Hampshire Board of Medicine
Search for license 9418Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% more Medicare Part D claims than the average family medicine physician in 2024
6,726 Medicare Part D claims for 640 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 130 claims were for opioids.
Most prescribed
- Atorvastatin Calcium496 claims
- Amlodipine Besylate336 claims
- Losartan Potassium313 claims
- Levothyroxine Sodium289 claims
- Simvastatin219 claims
- Metformin Hcl Er217 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.
Bills Medicare through one group practice
- Wentworth Douglass Physician CorporationDover, NH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William E. Hassett among 816 family medicine physician records in New Hampshire
William E. Hassett, MD is one of 816 family medicine physician records with a practice address in New Hampshire. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 13% of them.
- NPI issued2006 · 13% of these records are older, 43% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated1988 · median 2003 among the 498 with a school on file
- Record last updated2014 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a New Hampshire practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
18 family medicine physician records list a practice address in Dover
They are 18 of the 1,266 NPPES records with a practice address in Dover, and 816 family medicine physician records in New Hampshire.
All 816 in New Hampshire → Every provider in Dover → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Sangita Agarwal, MDDover, NH 038201912953316
- Mark Berman, MDDover, NH 038201972559367
- Nancy Braese, DODover, NH 038201932176328
- Lynn Devlin, ARNPDover, NH 038201952321622
- Kevin Donovan, DODover, NH 038201801958186
- Eva Enzinger, MDDover, NH 038201932140019
- Amanda Iantosca, DODover, NH 038201598086241
- Michelle Mancherje, MDDover, NH 038201215341300
Common questions
What is William E. Hassett, MD's NPI number?
William E. Hassett, MD's National Provider Identifier (NPI) is 1386683001, issued on Jun 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William E. Hassett, MD located?
The NPPES record lists a practice address at 10 Members Way, Dover, NH, 03820. Phone: (603) 742-3174. Providers update this record themselves, so call before visiting.
How can I verify William E. Hassett, MD's license?
NPPES lists New Hampshire license number 9418, as entered by the provider. Search the New Hampshire Board of Medicine at https://www.oplc.nh.gov/board-medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William E. Hassett, MD prescribe under Medicare Part D?
In 2024, William E. Hassett, MD had 6,726 Medicare Part D claims for 640 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.