What is John Kowalczyk's specialty?

John Kowalczyk (NPI 1548254089) is a Medicare-billing provider whose primary specialty is Urology in Los Angeles, CA.

Where does John Kowalczyk practice?

John Kowalczyk practices in Los Angeles, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1548254089.

How much does Medicare pay John Kowalczyk?

John Kowalczyk (NPI 1548254089) received approximately $140K in total Medicare Part B payments, serving 517 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

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

Healthparse Signals

Monitor this provider for changes — dated NPI change events