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

Mark A Lapp, MD

Individual provider Orthopaedic Surgery of the Spine Physician · NPI 1881664977

Mark A Lapp, MD is an Orthopedic Surgery in North Chelmsford, Massachusetts. Graduated from State University of New York at Stony Brook, School of Medicine in 1993, 33 years ago. Practices with Orthopaedic Surgical Associates of Lowell, PC, a 43-clinician group and accepts Medicare assignment. Licensed in Massachusetts and New Hampshire.

Years since qualifying
33
Trained at
State University of New York at Stony Brook, School of Medicine
Licensed in
MA, NH
In the registry since
2006
Specialties on file
2
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

14 Research Pl
North Chelmsford, MA 01863-2412
Phone: (978) 454-0706
Fax: (978) 970-0454
Show map & directions

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

Specialties & licences

Orthopaedic Surgery of the Spine Physician (primary) Taxonomy 207XS0117X · Licence 160583 (MA)
Orthopaedic Surgery of the Spine Physician Taxonomy 207XS0117X · Licence 12168 (NH)

Record details

NPI number1881664977
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 23, 2006
Last updated in NPPESFebruary 13, 2015
Mailing address14 Research Pl, North Chelmsford, MA 01863-2412

Medicare enrollment

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

Medicare specialtyORTHOPEDIC SURGERY
Medical schoolSTATE UNIVERSITY OF NEW YORK AT STONY BROOK, SCHOOL OF MEDICINE
Graduated 1993 (33 years in practice)
Group practice Orthopaedic Surgical Associates Of Lowell, P.C. — 43 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Other providers in North Chelmsford