What is Perry Wallach's specialty?

Perry Wallach (NPI 1538115431) is a Medicare-billing provider whose primary specialty is Internal Medicine in Tyler, TX.

Where does Perry Wallach practice?

Perry Wallach practices in Tyler, TX, based on the location reported in the CMS Medicare provider datasets for NPI 1538115431.

How much does Medicare pay Perry Wallach?

Perry Wallach (NPI 1538115431) received approximately $235K in total Medicare Part B payments, serving 404 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1538115431

Perry WallachMD

Internal MedicineTyler, TXI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,153

Unique beneficiaries

—

Total services

4,625

Distinct HCPCS

Medicare payment

$235K

Peer benchmark

Total Medicare services vs. 6,183 Internal Medicine providers in TX — top quintile (cohort median 673).

PRESCRIBING · PART D · 2024

Total Rx claims

Beneficiaries

—

Total drug cost

$872

Distinct drugs

Brand share

61.3%

Top prescribed drugs

Hydrocodone/Acetaminophen19 claims

Naloxone Hcl12 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 Perry Wallach'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). 81 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
EAST TEXAS MEDICAL CENTER	435	2,238
Clinical Pathology Laboratories, Inc. Clinical Laboratory · Austin, TX	431	2,894
Robert Sanchez Diagnostic Radiology · Tyler, TX	111	321
Jerry Schwarzbach Physical Medicine and Rehabilitation · Tyler, TX	108	397
Charles Crum Diagnostic Radiology · Tyler, TX	95	267
James Cabell Diagnostic Radiology · Tyler, TX	95	246
Timothy Leihgeber Diagnostic Radiology · Tyler, TX	90	246
R. Walker Diagnostic Radiology · Tyler, TX	84	251
Michael Williams Diagnostic Radiology · Tyler, TX	77	162
Gregory Schultz Diagnostic Radiology · Tyler, TX	67	187
AREGO, DONALD	66	540
Lisa Graves-Austin Internal Medicine · Toledo, OH	64	198

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