Robert W. Hansen, M.D.
Emergency Medicine Physician · Millbury, MA
Robert W. Hansen, M.D. is an emergency medicine physician with a practice address in Millbury, Massachusetts, and NPI 1003882192, issued on Feb 27, 2006. Check the license (Massachusetts 76423, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Robert W. Hansen
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 76423 MA
Self-reported in NPPES; status is on the state search - Practice location
- 384 W Main St, Millbury, MA 01527
- Phone
- (508) 450-6648
- Enumerated
- Feb 27, 2006
- Record last updated
- Sep 20, 2022
- Medicaid ID
- 110053835A MA
- Medicare enrollment
- Enrolled (PECOS I20050616001136); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,829 in Massachusetts → Look up another NPI →
Verify Robert W. Hansen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 76423Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
78% more Medicare Part D claims than the average emergency medicine physician in 2024
403 Medicare Part D claims for 281 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 11 claims were for opioids.
Most prescribed
- Prednisone94 claims
- Albuterol Sulfate Hfa34 claims
- Cephalexin28 claims
- Sulfamethoxazole-Trimethoprim24 claims
- Amoxicillin-Clavulanate Potass21 claims
- Doxycycline Monohydrate17 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
- Reliant Medical Group IncWorcester, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Robert W. Hansen among 1,829 emergency medicine physician records in Massachusetts
Robert W. Hansen, M.D. is one of 1,829 emergency medicine physician records with a practice address in Massachusetts. 82% 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 9% of them.
- NPI issued2006 · 9% of these records are older, 59% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1991 · median 2011 among the 1,200 with a school on file
- Record last updated2022 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medicine Physician providers in Massachusetts
There are 1,829 emergency medicine physician records in Massachusetts.
All 1,829 in Massachusetts → Every provider in Millbury → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Allison Darvish, DOHolden, MA 015201588952451
- Richard Freniere, DOHolden, MA 015201023008745
- Donald Jackel, DOHolden, MA 015201497745160
- Rock Jean-Guillaume, D.O.Holden, MA 015201730157918
- William O'Callahan, MDHolden, MA 015201114964186
- Peter Rugg, MDHolden, MA 015201508856121
- Peter Oldak, M.D.Clinton, MA 015101164404851
- Birendra Sinha, M.D.Clinton, MA 015101649209792
Common questions
What is Robert W. Hansen, M.D.'s NPI number?
Robert W. Hansen, M.D.'s National Provider Identifier (NPI) is 1003882192, issued on Feb 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Robert W. Hansen, M.D. located?
The NPPES record lists a practice address at 384 W Main St, Millbury, MA, 01527. Phone: (508) 450-6648. Providers update this record themselves, so call before visiting.
How can I verify Robert W. Hansen, M.D.'s license?
NPPES lists Massachusetts license number 76423, 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 Robert W. Hansen, M.D. prescribe under Medicare Part D?
In 2024, Robert W. Hansen, M.D. had 403 Medicare Part D claims for 281 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.