William S. Grass, MD
Psychiatry Physician · Burlington, VT
William S. Grass, MD is a psychiatry physician with a practice address in Burlington, Vermont, and NPI 1124041348, issued on Jul 26, 2006. Check the license (Vermont 042-0009917, as entered in NPPES) on the Vermont Board of Medical Practice; the Medicare figures below come from public CMS files.
- Name
- William S. Grass
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 042-0009917 VT
Self-reported in NPPES; status is on the state search - Practice location
- 118 Pine St, Burlington, VT 05401
- Phone
- (802) 660-8000
- Enumerated
- Jul 26, 2006
- Record last updated
- Jul 1, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (802) 862-4062
- Medicaid IDs
- 1007917 VT
30201707 NH - Entity
- Type 1 · individual
Also registered at 118 Pine St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Carrie Burrous, PHDClinical Psychologist1629282876
- John Edwards, M.D.Psychiatry Physician1649394552
- Debra Gottesman, M.D.Psychiatry Physician1700926763
- Suzanne Parker, M.D.Addiction Medicine (Psychiatry & Neurology) Physician1659438323
- Elizabeth Seward, M.D.Internal Medicine Physician1114129871
Verify William S. Grass in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersVermont Board of Medical Practice
Search for license 042-0009917Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
84% fewer Medicare Part D claims than the average psychiatry physician in 2024
155 Medicare Part D claims for 11 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.
Most prescribed
- Clozapine22 claims
- Haloperidol Decanoate16 claims
- Sertraline Hcl16 claims
- Lurasidone Hcl11 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.
67 psychiatry physician records list a practice address in Burlington
They are 67 of the 3,455 NPPES records with a practice address in Burlington, and 203 psychiatry physician records in Vermont.
All 67 in Burlington → All 203 in Vermont → Every provider in Burlington →
Other psychiatry physician records in Vermont
- Ray Abney, MDBellows Falls, VT1689698789
- Kenneth Adler, MDBerlin, VT1417976887
- Saeed Ahmed, M.DRutland, VT1275920845
- David Allan, M.D.Williston, VT1033258850
- Kathleen Allden, MDHartford, VT1770651952
- Grace Andrews, MDBurlington, VT1891444758
- Robert Balaban, M.D.Shelburne, VT1497713341
- Percy Ballantine, MDBrattleboro, VT1871580779
- Harlow Ballard, MDMontpelier, VT1154416774
- Christine Barney, M.D.White River Junction, VT1639262470
Common questions
What is William S. Grass, MD's NPI number?
William S. Grass, MD's National Provider Identifier (NPI) is 1124041348, issued on Jul 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William S. Grass, MD located?
The NPPES record lists a practice address at 118 Pine St, Burlington, VT, 05401. Phone: (802) 660-8000. Providers update this record themselves, so call before visiting.
How can I verify William S. Grass, MD's license?
NPPES lists Vermont license number 042-0009917, as entered by the provider. Search the Vermont Board of Medical Practice at https://www.healthvermont.gov/systems/board-medical-practice. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William S. Grass, MD prescribe under Medicare Part D?
In 2024, William S. Grass, MD had 155 Medicare Part D claims for 11 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.