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

William Klemczuk Jr., DNP, CRNA

Individual provider Registered Nurse · NPI 1134613359

William Klemczuk Jr., DNP, CRNA is a Certified Registered Nurse Anesthetist (CRNA) in Salem, Massachusetts. Qualified in 2025, 1 year ago. Practices with Mass General Brigham Medical Group, Inc, a 140-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
1
Licensed in
MA
In the registry since
2018
Specialties on file
2
What do these letters mean?
DNP — Doctor of Nursing Practice
The highest clinical degree in nursing.
CRNA — Certified Registered Nurse Anesthetist
An advanced practice nurse who administers anaesthesia.

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Practice location Address checks out

81 Highland Ave
Salem, MA 01970-2768
Phone: (978) 741-1200
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 83 Lynn St, Peabody, MA 01960-5735 — (857) 445-6525

Specialties & licences

Certified Registered Nurse Anesthetist (primary) Taxonomy 367500000X · Licence RN2306913 (MA)
Registered Nurse Taxonomy 163W00000X · Licence RN2306913 (MA)

Record details

NPI number1134613359
Entity typeIndividual (Type 1)
GenderMale
Credentials DNP , CRNA
Sole proprietorYes
NPI enumeratedJune 20, 2018
Last updated in NPPESJuly 31, 2025
Certification dateJuly 31, 2025

Medicare enrollment

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

Medicare specialtyCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA)
Medical schoolOTHER
Graduated 2025 (1 years in practice)
Group practice Mass General Brigham Medical Group, Inc. — 140 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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