What is Mark Merwarth's specialty?

Mark Merwarth (NPI 1932284726) is a Medicare-billing provider whose primary specialty is Physician Assistant in Richmond, VA.

Where does Mark Merwarth practice?

Mark Merwarth practices in Richmond, VA, based on the location reported in the CMS Medicare provider datasets for NPI 1932284726.

How much does Medicare pay Mark Merwarth?

Mark Merwarth (NPI 1932284726) received approximately $6K in total Medicare Part B payments, serving 93 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1932284726

Mark MerwarthPAC

PRACTICEORTHOVIRGINIA INCSee all providers at this practice →

Physician AssistantRichmond, VAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

Unique beneficiaries

—

Total services

Distinct HCPCS

Medicare payment

$4K

Peer benchmark

Total Medicare services vs. 3,062 Physician Assistant providers in VA — bottom quintile (cohort median 318).

PRESCRIBING · PART D · 2024

Total Rx claims

Beneficiaries

—

Total drug cost

$374

Distinct drugs

Brand share

12.8%

Top prescribed drugs

Oxycodone Hcl61 claims

Tramadol Hcl14 claims

Hydrocodone/Acetaminophen11 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

REFERRAL NETWORK

Where Mark Merwarth'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). 4 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Adam Crowl Orthopedic Surgery · Richmond, VA	41	179
HCA HEALTH SERVICES OF VIRGINIA INC	25	65
Lowrey Holthaus Diagnostic Radiology · Richmond, VA	17	27
BON SECOURS ST FRANCIS MEDICAL CENTER LLC	12	20

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