Physician Profile
Unclaimed ProfileAbout LAPP
Mark A Lapp, MD is a healthcare provider in North Chelmsford, MA specialising in orthopedic surgery. Mark trained at State University of New York at Stony Brook, School of Medicine, graduating in 1993. Mark is also listed as specialising in orthopaedic surgery of the spine.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What is Dr. Lapp's specialty?
Dr. Lapp is an orthopedic surgeon in North Chelmsford, MA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “ORTHOPEDIC SURGERY”.
NPI registry
Where can I find Dr. Lapp?
Dr. Lapp is listed at 14 RESEARCH PL, North Chelmsford, MA 01863. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Lapp?
The number on file is (978) 454-0706. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Lapp?
Dr. Lapp's National Provider Identifier is 1881664977. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Dr. Lapp's medical education?
Dr. Lapp attended State University of New York at Stony Brook, School of Medicine, graduating in 1993. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Lapp have?
Dr. Lapp has 33 years experience. Calculated from a graduation year of 1993, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Lapp known for?
According to Medicare billing data, Dr. Lapp performs procedures including injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level, injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, each additional level and harvest of bone fragment for spine bone graft; reads or performs imaging such as x-ray of lower and sacral spine, 2-3 views and x-ray of upper spine, 2-3 views, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Lapp's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Lapp. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (978) 454-0706
- Email not available
Practice Locations
14 RESEARCH PL
North Chelmsford, MA 01863
Procedures Most Often Billed to Medicare
6,634 services · 1,653 patients · 25 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level | Procedure | 64483 |
212 |
| Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, each additional level | Procedure | 64484 |
79 |
| Harvest of bone fragment for spine bone graft | Procedure | 20937 |
27 |
| Insertion of cage or mesh device to spine bone and disc space during spine fusion | Procedure | 22853 |
25 |
| Fusion of additional segment of spine | Procedure | 22614 |
25 |
| Aspiration and/or injection of fluid from large joint | Procedure | 20610 |
22 |
| Partial removal of spine bone with release of lower spinal cord and/or nerves, 1 segment | Procedure | 63047 |
20 |
| Partial removal of bone of single segment of spine in lower back with release of spinal cord and/or nerves during fusion of spine in lower back | Procedure | 63052 |
18 |
| Fusion of spine in lower back with partial removal of spine bone and disc | Procedure | 22633 |
18 |
| Partial removal of spine bone with release of spinal cord and/or nerves, each additional segment | Procedure | 63048 |
15 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other orthopedic surgeons at this location 7
Same specialty, same street address — most likely the same department or group.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other orthopedic surgeons in North Chelmsford 2
Same specialty, same city.
More connections — 23 related providers in 3 groups
Trained at State University of New York at Stony Brook, School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1993 at State University of New York at Stony Brook, School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level 7
Providers in MA who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.