Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. William B Ruzicka, MD, PHD

Individual provider Psychiatry Physician · NPI 1225297765

Dr. William B Ruzicka, MD, PHD is a Psychiatry in Belmont, Massachusetts. Qualified in 2008, 18 years ago. Practices with The McLean Hospital Corporation, a 186-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
18
Licensed in
MA
In the registry since
2008
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

115 Mill Street McLean Hospital
Belmont, MA 02478
Phone: (617) 855-2000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence 246523 (MA)
Psychiatry Physician Taxonomy 2084P0800X · Licence L-236646 (MA)

Record details

NPI number1225297765
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorYes
NPI enumeratedJune 9, 2008
Last updated in NPPESJune 22, 2012
Mailing address115 Mill Street, McLean Hospital, Belmont, MA 02478

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPSYCHIATRY
Medical schoolOTHER
Graduated 2008 (18 years in practice)
Group practice The McLean Hospital Corporation — 186 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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