What is Mark Lapp's specialty?

Mark Lapp (NPI 1881664977) is a Medicare-billing provider whose primary specialty is Orthopedic Surgery in North Chelmsford, MA.

Where does Mark Lapp practice?

Mark Lapp practices in North Chelmsford, MA, based on the location reported in the CMS Medicare provider datasets for NPI 1881664977.

How much does Medicare pay Mark Lapp?

Mark Lapp (NPI 1881664977) received approximately $295K in total Medicare Part B payments, serving 431 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1881664977

Mark LappMD

PRACTICEORTHOPAEDIC SURGICAL ASSOCIATES OF LOWELL, P.C.See all providers at this practice →

Orthopedic SurgeryNorth Chelmsford, MAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,678

Unique beneficiaries

—

Total services

6,659

Distinct HCPCS

Medicare payment

$249K

Peer benchmark

Total Medicare services vs. 531 Orthopedic Surgery providers in MA — top quintile (cohort median 1,092).

PRESCRIBING · PART D · 2024

Total Rx claims

Beneficiaries

—

Total drug cost

$320

Distinct drugs

Brand share

0.0%

Top prescribed drugs

Diclofenac Sodium33 claims

Gabapentin21 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$9K

Payment records

By payment type

Consulting Fee$6K

Travel and Lodging$2K

Food and Beverage$169

Top paying entities

Consulting Fee$6K

Travel and Lodging$2K

Food and Beverage$169

REFERRAL NETWORK

Where Mark Lapp's patients come from & go

Directional shared-patient flow from Medicare claims — who sends patients to this provider (inbound) and where this provider's patients go next (outbound). 29 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
THE LOWELL GENERAL HOSPITAL	217	870
Shields Imaging Of Lowell General Hospital Llc Independent Diagnostic Testing Facility (IDTF) · N Chelmsford, MA	71	148
Jose Mora Diagnostic Radiology · Brooklyn, NY	45	166
June Stott Nurse Practitioner · North Chelmsford, MA	44	183
Aiham Korbage Diagnostic Radiology · Boston, MA	33	96
Walter Jo Cardiology · N Chelmsford, MA	32	86
Atul Bhat Physical Medicine and Rehabilitation · North Chelmsford, MA	31	75
CIRCLE HOME, INC.	26	52
Daniel Gale Diagnostic Radiology · Lowell, MA	25	82
Quest Diagnostics Massachusetts Llc Clinical Laboratory · Marlborough, MA	21	34
Pridestar Ems Inc Ambulance Service Provider · Lowell, MA	18	32
Patrick Hanks Diagnostic Radiology · Lowell, MA	18	54

Refers patients to

Outbound — where patients go next

No outbound pairs above the suppression threshold.

Source: CMS Physician Shared Patient Patterns (30-day window, Medicare FFS). Direction = a beneficiary seen by the first provider, then the second, within 30 days; a proxy for referral, not a documented referral. Pairs with fewer than 11 shared beneficiaries are suppressed.

CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore

OIG/SAM exclusion screening, sanctions history

Healthparse Signals

Monitor this provider for changes — dated NPI change events