What is Mark Johnston's specialty?

Mark Johnston (NPI 1326295726) is a Medicare-billing provider whose primary specialty is Audiologist in San Antonio, TX.

Where does Mark Johnston practice?

Mark Johnston practices in San Antonio, TX, based on the location reported in the CMS Medicare provider datasets for NPI 1326295726.

How much does Medicare pay Mark Johnston?

Mark Johnston (NPI 1326295726) received approximately $24K in total Medicare Part B payments, serving 647 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1326295726

Mark JohnstonA.U.D., CCC-A

AudiologistSan Antonio, TXI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,255

Unique beneficiaries

—

Total services

1,435

Distinct HCPCS

Medicare payment

$24K

Peer benchmark

Total Medicare services vs. 495 Audiologist providers in TX — top quintile (cohort median 214).

PRESCRIBING · PART D · 2024

No data available for this provider in 2024.

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

No data available for this provider in 2024.

REFERRAL NETWORK

Where Mark Johnston'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). 3 inbound referrers · 10 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
BIEDIGER, CHARLES	131	154
Jeffery Rosenbloom Otolaryngology · San Antonio, TX	33	53
Clinical Pathology Laboratories, Inc. Clinical Laboratory · Austin, TX	23	32

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
Jeffery Rosenbloom Otolaryngology · San Antonio, TX	222	392
Quest Diagnostics Clinical Laboratories Inc Clinical Laboratory · Irving, TX	40	70
Benjamin Webb Otolaryngology · San Antonio, TX	36	46
Laboratory Corporation Of America Clinical Laboratory · Houston, TX	30	36
BIEDIGER, CHARLES	19	24
BEXAR COUNTY HOSPITAL DISTRICT	18	24
Clinical Pathology Laboratories, Inc. Clinical Laboratory · Austin, TX	17	21
VHS SAN ANTONIO PARTNERS LLC	13	16
David Wood Diagnostic Radiology · San Antonio, TX	12	15
Gregory Boys Diagnostic Radiology · San Antonio, TX	12	16

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