Sean James Dacus, D.O.
Family Medicine Physician · South Deerfield, MA
Sean James Dacus, D.O. is a family medicine physician with a practice address in South Deerfield, Massachusetts, and NPI 1043377609, issued on Jan 3, 2007. Check the license (Massachusetts 236504, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Sean James Dacus
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 236504 MA
Self-reported in NPPES; status is on the state search - Practice location
- 29 Elm St, South Deerfield, MA 01373
- Phone
- (413) 665-6760
- Enumerated
- Jan 3, 2007
- Record last updated
- Apr 1, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (413) 665-2101
- Medicaid ID
- 2156814 MA
- Medicare enrollment
- Enrolled (PECOS I20080805000076); accepts Medicare assignment
- Medical or professional school
- University Of New England, College Of Osteo Medicine, 2005
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,265 in Massachusetts → Look up another NPI →
Also registered at 29 Elm St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jennifer Schott, M.D.Pediatrics Physician1598753600
- Bridget Shea-GanderPediatric Nurse Practitioner1295285278
Verify Sean James Dacus in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 236504Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
59% more Medicare Part D claims than the average family medicine physician in 2024
5,631 Medicare Part D claims for 513 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 287 claims were for opioids.
Most prescribed
- Atorvastatin Calcium342 claims
- Lisinopril319 claims
- Amlodipine Besylate250 claims
- Levothyroxine Sodium223 claims
- Omeprazole191 claims
- Lorazepam138 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
- Mass General Brigham Medical Group Western Massachusetts IncNorthampton, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sean James Dacus among 2,265 family medicine physician records in Massachusetts
Sean James Dacus, D.O. is one of 2,265 family medicine physician records with a practice address in Massachusetts. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 45% of them.
- NPI issued2007 · 45% of these records are older, 47% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2005 · median 2006 among the 1,529 with a school on file
- Record last updated2016 · 59% 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 Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1 family medicine physician record lists a practice address in South Deerfield
They are 1 of the 108 NPPES records with a practice address in South Deerfield, and 2,265 family medicine physician records in Massachusetts.
All 2,265 in Massachusetts → Every provider in South Deerfield → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Kathleen Kerr, MDTurners Falls, MA 013761619947942
- Robert Miller, MDShelburne Falls, MA 013701992884282
- Stefan Topolski, M.D.Shelburne Falls, MA 013701518984087
- Richard Warner, MDShelburne Falls, MA 013701578565297
- Myron Maron, M.D.Petersham, MA 013661245373711
- Rebecca Jackson, MDOrange, MA 013641114999786
- Susan Lowery, M.D.Montague, MA 013511649256033
- Jennifer Mark, M.D.Athol, MA 013311437183266
Common questions
What is Sean James Dacus, D.O.'s NPI number?
Sean James Dacus, D.O.'s National Provider Identifier (NPI) is 1043377609, issued on Jan 3, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Sean James Dacus, D.O. located?
The NPPES record lists a practice address at 29 Elm St, South Deerfield, MA, 01373. Phone: (413) 665-6760. Providers update this record themselves, so call before visiting.
How can I verify Sean James Dacus, D.O.'s license?
NPPES lists Massachusetts license number 236504, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Sean James Dacus, D.O. prescribe under Medicare Part D?
In 2024, Sean James Dacus, D.O. had 5,631 Medicare Part D claims for 513 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.