William B. Ruzicka, MD, PHD
Psychiatry Physician · Belmont, MA
William B. Ruzicka, MD, PHD is a psychiatry physician with a practice address in Belmont, Massachusetts, and NPI 1225297765, issued on Jun 9, 2008. Check the license (Massachusetts 246523, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- William B. Ruzicka
- Credential
- MD, PHD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License numbers
- 246523 MA
L-236646 MA
Self-reported in NPPES; status is on the state search - Practice location
- 115 Mill Street, Belmont, MA 02478
- Phone
- (617) 855-2000
- Enumerated
- Jun 9, 2008
- Record last updated
- Jun 22, 2012 (not updated in 14 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20120723000636); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 2,736 in Massachusetts → Look up another NPI →
Also registered at 115 Mill Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lauren Asermely, CNPNurse Practitioner1760952808
- J. Alexander Bodkin, M.D.Psychiatry Physician1235222969
- David Borsook, MD PHDNeurology Physician1285669564
- Ryan Boxill, PHDPsychologist1538143946
- Karen Boyko, LICSWClinical Social Worker1730359969
- Michael Bromley, MDPsychiatry Physician1366410581
Verify William B. Ruzicka in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 246523Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 75.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- The Mclean Hospital CorporationBelmont, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William B. Ruzicka among 2,736 psychiatry physician records in Massachusetts
William B. Ruzicka, MD, PHD 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 2008, is newer than 63% of them.
- NPI issued2008 · 63% of these records are older, 34% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileYes · 45% of these records are
- Graduated2008 · median 2005 among the 1,219 with a school on file
- Record last updated2012 · 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).
151 psychiatry physician records list a practice address in Belmont
They are 151 of the 1,008 NPPES records with a practice address in Belmont, and 2,736 psychiatry physician records in Massachusetts.
All 2,736 in Massachusetts → Every provider in Belmont → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Joseph Albeck, MDBelmont, MA 024781255313375
- Ross Baldessarini, MDBelmont, MA 024781487644787
- Leora Borek, M.D.Belmont, MA 024781134115553
- Craig Boyajian, M.D.Belmont, MA 024781831188200
- Marni Chanoff, MDBelmont, MA 024781013908706
- Donald Cluett, M.D.Belmont, MA 024781710969381
- Leonard Glass, MDBelmont, MA 024781639159627
- April Hirschberg, MDBelmont, MA 024781063403681
Common questions
What is William B. Ruzicka, MD, PHD's NPI number?
William B. Ruzicka, MD, PHD's National Provider Identifier (NPI) is 1225297765, issued on Jun 9, 2008. An NPI identifies a provider in billing; it is not a license.
Where is William B. Ruzicka, MD, PHD located?
The NPPES record lists a practice address at 115 Mill Street, Belmont, MA, 02478. Phone: (617) 855-2000. Providers update this record themselves, so call before visiting.
How can I verify William B. Ruzicka, MD, PHD's license?
NPPES lists Massachusetts license number 246523, 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.
What is William B. Ruzicka, MD, PHD's MIPS final score?
The 2023 MIPS final score is 75.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.