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

Mr. Jan Slezak, MD

Individual provider Interventional Pain Medicine Physician · NPI 1750357307

Mr. Jan Slezak, MD is an Anesthesiology in Barrington, New Hampshire. Qualified in 1986, 40 years ago. Practices with Northeast Medical Consultants PC, a 7-clinician group and accepts Medicare assignment. Licensed in New Hampshire.

Years since qualifying
40
Licensed in
NH
In the registry since
2006
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

944 Calef Hwy Interventional Spine Medicine
Barrington, NH 03825-7244
Phone: (603) 664-0100
Fax: (603) 664-0101
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Interventional Pain Medicine Physician (primary) Taxonomy 208VP0014X · Licence 10063 (NH)

Record details

NPI number1750357307
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 24, 2006
Last updated in NPPESJanuary 10, 2018
Mailing address944 Calef Hwy, Interventional Spine Medicine, Barrington, NH 03825-7244

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Also practisesPAIN MANAGEMENT
Medical schoolOTHER
Graduated 1986 (40 years in practice)
Group practice Northeast Medical Consultants Pc — 7 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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