What is Walter Klein's specialty?

Walter Klein (NPI 1821099078) is a Medicare-billing provider whose primary specialty is Gastroenterology in Harrington Park, NJ.

Where does Walter Klein practice?

Walter Klein practices in Harrington Park, NJ, based on the location reported in the CMS Medicare provider datasets for NPI 1821099078.

How much does Medicare pay Walter Klein?

Walter Klein (NPI 1821099078) received approximately $183K in total Medicare Part B payments, serving 537 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1821099078

Walter KleinM.D.

PRACTICEPARK MEDICAL GROUP PASee all providers at this practice →

GastroenterologyHarrington Park, NJI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,471

Unique beneficiaries

—

Total services

1,722

Distinct HCPCS

Medicare payment

$158K

Peer benchmark

Total Medicare services vs. 544 Gastroenterology providers in NJ — top quintile (cohort median 963).

PRESCRIBING · PART D · 2024

Total Rx claims

2,644

Beneficiaries

—

Total drug cost

$229K

Distinct drugs

Brand share

21.1%

Top prescribed drugs

Pantoprazole Sodium337 claims

Sodium, Potassium,mag Sulfates221 claims

Atorvastatin Calcium176 claims

Rosuvastatin Calcium147 claims

Metformin Hcl128 claims

QUALITY · MIPS · 2024

Final MIPS score

96.1

Quality

86.9

Cost

0.0

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

0.89%

APM Entity

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$2K

Payment records

By payment type

Food and Beverage$2K

Top paying entities

Food and Beverage$2K

REFERRAL NETWORK

Where Walter Klein'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). 28 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
ENGLEWOOD HOSPITAL AND MEDICAL CENTER	363	1,911
Mikhail Tismenetsky Pathology · Englewood, NJ	33	104
Jausheng Tzeng Pathology · Englewood, NJ	30	65
Kavitha Vadde Diagnostic Radiology · Staten Island, NY	29	89
Angelo Mastropasqua Diagnostic Radiology · New York, NY	27	113
BETTA, JOANNE	27	65
Marc Herman Diagnostic Radiology · Englewood, NJ	26	88
Shari Naidrich Diagnostic Radiology · Englewood, NJ	25	58
Katya Rekhtman Sneed Diagnostic Radiology · Englewood, NJ	24	82
John Galant Podiatry · Tenafly, NJ	23	93
Ana Burga Pathology · Englewood, NJ	21	55
Samuel Suede Cardiology · Englewood, NJ	21	58

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