Edward M. Hallowell, M.D.
Psychiatry Physician · Sudbury, MA
Edward M. Hallowell, M.D. is a psychiatry physician with a practice address in Sudbury, Massachusetts, and NPI 1184661365, issued on May 31, 2006. Check the license (Massachusetts 44431, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Edward M. Hallowell
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 44431 MA
Self-reported in NPPES; status is on the state search - Practice location
- 142 North Road, Sudbury, MA 01776
- Phone
- (978) 287-0810
- Enumerated
- May 31, 2006
- Record last updated
- Jul 13, 2026
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 2,736 in Massachusetts → Look up another NPI →
Verify Edward M. Hallowell in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 44431Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
36% fewer Medicare Part D claims than the average psychiatry physician in 2024
637 Medicare Part D claims for 70 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.
Most prescribed
- Dextroamphetamine-Amphetamine177 claims
- Dextroamphetamine-Amphet Er56 claims
- Bupropion Xl47 claims
- Vyvanse45 claims
- Dextroamphetamine Sulfate35 claims
- Fluoxetine Hcl27 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.
Edward M. Hallowell among 2,736 psychiatry physician records in Massachusetts
Edward M. Hallowell, M.D. is one of 2,736 psychiatry physician records with a practice address in Massachusetts. 65% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 51% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileNo · 45% of these records are
- Record last updated2026 · 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 2084P0800X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
6 psychiatry physician records list a practice address in Sudbury
They are 6 of the 281 NPPES records with a practice address in Sudbury, and 2,736 psychiatry physician records in Massachusetts.
All 2,736 in Massachusetts → Every provider in Sudbury → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- William Barnard, M.D.Sudbury, MA 017761194016345
- Morgan Brooks, PHD, MDSudbury, MA 017761235699711
- Casandra Gale, DNP, PMHNPSudbury, MA 017761598553752
- Marcus Goldman, M.D.Sudbury, MA 017761023022639
- Cathy Schen, M.D.Sudbury, MA 017761609940931
- Arthur Miller, M.D.Stow, MA 017751881721769
- Ronald Abramson, M.D.Wayland, MA 017781326045022
- Charles Carl, MDWayland, MA 017781891729505
Common questions
What is Edward M. Hallowell, M.D.'s NPI number?
Edward M. Hallowell, M.D.'s National Provider Identifier (NPI) is 1184661365, issued on May 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Edward M. Hallowell, M.D. located?
The NPPES record lists a practice address at 142 North Road, Sudbury, MA, 01776. Phone: (978) 287-0810. Providers update this record themselves, so call before visiting.
How can I verify Edward M. Hallowell, M.D.'s license?
NPPES lists Massachusetts license number 44431, 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 Edward M. Hallowell, M.D. prescribe under Medicare Part D?
In 2024, Edward M. Hallowell, M.D. had 637 Medicare Part D claims for 70 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.