Doctor profile · Federal record
Dr. Mark Lapp, MD
Orthopaedic Surgery of the Spine Physician (CMS: Orthopedic Surgery) · Orthopaedic Surgery of the Spine Physician · North Chelmsford, MA
- NPI 1881664977
- Accepts Medicare
- 33 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
14 Research Pl
North Chelmsford, MA 018632412
(978) 454-0706
fax (978) 970-0454
Credentials & registration
- NPI registered
- January 2006 — 20 yrs on file
- Profile last updated
- February 13, 2015
- Year of graduation
- 1993 — 33 yrs since
- Specialty taxonomy
- 207XS0117X — NUCC code
- State licenses (2)
- Massachusetts #160583 · New Hampshire #12168
- Medicaid (2)
- NH #30203450 · MA #3200710
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1881664977. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
5,418
Distinct HCPCS
10
Medicare allowed
$378,331
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
J1100 |
Injection, dexamethasone sodium phosphate, 1 mg | 2,420 | 96 | $0 | |
J3301 |
Injection, triamcinolone acetonide, not otherwise specified, 10 mg | 862 | 99 | $1 | |
72100 |
X-ray of lower and sacral spine, 2-3 views | 398 | 277 | $45 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 353 | 224 | $99 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 276 | 209 | $139 | |
64483 |
Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level | 226 | 151 | $335 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 137 | 112 | $195 | |
Q9966 |
Low osmolar contrast material, 200-299 mg/ml iodine concentration, per ml | 122 | 94 | $0 | |
64484 |
Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, each additional level | 78 | 54 | $127 | |
J0702 |
Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg | 66 | 15 | $7 |
In context: peer comparison
Among 1 peers in North Chelmsford Orthopaedic Surgery of the Spine Physician, average services per provider: 208. This provider delivers 26× the peer median.Open Payments
Industry payments received
All-time total
$8,535
Transactions
3
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Carlsmed, INC. | 3 | $8,535.30 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
73
Patients
68
Total drug cost
$506
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Diclofenac Sodium | Generic | 25 | 23 | $162 |
| Methylprednisolone | Generic | 25 | 24 | $215 |
| Gabapentin | Generic | 23 | 21 | $128 |
Frequently asked questions
What is Dr. Mark Lapp's medical specialty?
Dr. Mark Lapp practices Orthopaedic Surgery of the Spine Physician in North Chelmsford, MA.
Where does Dr. Mark Lapp practice?
Dr. Mark Lapp practices at 14 Research Pl, North Chelmsford, MA 018632412. Office phone: 9784540706.
What is Dr. Mark Lapp's NPI?
Dr. Mark Lapp's National Provider Identifier (NPI) is 1881664977, issued by NPPES.
Does Dr. Mark Lapp accept Medicare assignment?
Yes. Dr. Mark Lapp accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark Lapp commonly perform?
Top Medicare-reported procedures in 2023: Injection, dexamethasone sodium phosphate, 1 mg (HCPCS J1100); Injection, triamcinolone acetonide, not otherwise specified, 10 mg (HCPCS J3301); X-ray of lower and sacral spine, 2-3 views (HCPCS 72100). Source: CMS Medicare Physician & Other Practitioners file.