What is Alexander Mark's specialty?

Alexander Mark (NPI 1770573388) is a Medicare-billing provider whose primary specialty is Diagnostic Radiology in Rockville, MD.

Where does Alexander Mark practice?

Alexander Mark practices in Rockville, MD, based on the location reported in the CMS Medicare provider datasets for NPI 1770573388.

How much does Medicare pay Alexander Mark?

Alexander Mark (NPI 1770573388) received approximately $661K in total Medicare Part B payments, serving 2,902 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1770573388

Alexander MarkM.D.

Diagnostic RadiologyRockville, MDI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

4,337

Unique beneficiaries

—

Total services

86,831

Distinct HCPCS

Medicare payment

$629K

Peer benchmark

Total Medicare services vs. 630 Diagnostic Radiology providers in MD — top quintile (cohort median 5,711).

PRESCRIBING · PART D · 2024

No data available for this provider in 2024.

QUALITY · MIPS · 2024

Final MIPS score

75.0

Quality

0.0

Cost

0.0

Improvement activities

0.0

Promoting interop.

0.0

Payment adjustment

0.00%

Individual

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

REFERRAL NETWORK

Where Alexander Mark'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). 27 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
CHRISTIANA CARE HEALTH SERVICES, INC.	159	269
Laboratory Corporation Of America Holdings Clinical Laboratory · Raritan, NJ	124	198
Garth Koniver Diagnostic Radiology · Wilmington, DE	93	142
Quest Diagnostics Incorporated Md Clinical Laboratory · Baltimore, MD	70	114
Quest Diagnostics Clinical Laboratories Inc Clinical Laboratory · Norristown, PA	45	73
Mark Eskander Orthopedic Surgery · Wilmington, DE	34	52
Michael Leviton Diagnostic Radiology · Wilmington, DE	24	33
Sunrise Medical Laboratories, Inc. Clinical Laboratory · Hicksville, NY	23	63
SUBURBAN HOSPITAL, INC.	22	25
Anthony Scola Diagnostic Radiology · Wilmington, DE	22	29
Kennedy Yalamanchili Neurosurgery · Newark, DE	20	26
Accu Reference Medical Lab, Llc Clinical Laboratory · Linden, NJ	18	29

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