PROVIDER PROFILE · NPI 1548254089

John KowalczykDO

PRACTICESIGNATURE MEDICAL CLINICS INCSee all providers at this practice →

UrologyLos Angeles, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,409

Unique beneficiaries

—

Total services

2,168

Distinct HCPCS

Medicare payment

$98K

Peer benchmark

Total Medicare services vs. 942 Urology providers in CA — above median (cohort median 1,637).

PRESCRIBING · PART D · 2024

Total Rx claims

4,567

Beneficiaries

—

Total drug cost

$381K

Distinct drugs

Brand share

20.1%

Top prescribed drugs

Tamsulosin Hcl1,297 claims

Finasteride832 claims

Dutasteride580 claims

Vibegron273 claims

Doxazosin Mesylate193 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$4K

Payment records

118

By payment type

Food and Beverage$4K

Top paying entities

Food and Beverage$4K

REFERRAL NETWORK

Where John Kowalczyk'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). 30 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Medical Diagnostic Laboratory Llc Clinical Laboratory · La Verne, CA	250	574
LABS-ALL, INC	120	449
Unilab Corporation Clinical Laboratory · West Hills, CA	71	191
KOHAN, MARIO	56	250
SOUTHERN CALIFORNIA HEALTHCARE SYSTEM, INC	45	69
John Kim Podiatry · Los Angeles, CA	44	93
Carmencita Llado General Practice · Los Angeles, CA	41	127
Moustafa Alamy Gastroenterology · Paramount, CA	36	63
City Of Los Angeles Ambulance Service Provider · Los Angeles, CA	34	44
Babak Bamshad Urology · Los Angeles, CA	33	69
OLYMPIA HEALTH CARE LLC	33	47
Eugene Choi Diagnostic Radiology · Los Angeles, CA	31	79

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