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

Otto Walter, MD

Individual provider Anatomic Pathology Physician · NPI 1801942628

Otto Walter, MD is a Pathology in Worcester, Massachusetts. Qualified in 1993, 33 years ago. Practices with Ruffolo Hooper and Associates MD PA, a 43-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
33
Licensed in
MA
In the registry since
2007
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

55 Lake Ave N Dept OF Pathology
Worcester, MA 01655-0002
Phone: (508) 793-6100
Fax: (508) 793-6110
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anatomic Pathology Physician (primary) Taxonomy 207ZP0101X · Licence 239752 (MA)

Record details

NPI number1801942628
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 26, 2007
Last updated in NPPESJuly 27, 2011
Mailing addressPo Box 415348, Boston, MA 02241-5348

Medicare enrollment

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

Medicare specialtyPATHOLOGY
Medical schoolOTHER
Graduated 1993 (33 years in practice)
Group practice Ruffolo Hooper And Associates Md Pa — 43 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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