PROVIDER PROFILE · NPI 1902910052

Ren ZhangMD

PRACTICELYNN KOWALSKI MD LTDSee all providers at this practice →

Colorectal Surgery (Proctology)Las Vegas, NVI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

311

Unique beneficiaries

—

Total services

393

Distinct HCPCS

Medicare payment

$47K

Peer benchmark

Total Medicare services vs. 9 Colorectal Surgery (Proctology) providers in NV — above median (cohort median 382).

PRESCRIBING · PART D · 2024

Total Rx claims

141

Beneficiaries

—

Total drug cost

$2K

Distinct drugs

Brand share

65.2%

Top prescribed drugs

Oxycodone Hcl/Acetaminophen92 claims

Metronidazole24 claims

Neomycin Sulfate13 claims

Hydromorphone Hcl12 claims

QUALITY · MIPS · 2024

Final MIPS score

23.0

Quality

0.0

Cost

76.7

Improvement activities

0.0

Promoting interop.

0.0

Payment adjustment

-6.24%

Individual

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$7K

Payment records

By payment type

Consulting Fee$6K

Travel and Lodging$698

Food and Beverage$243

REFERRAL NETWORK

Where Ren Zhang'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). 4 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Quest Diagnostics Incorporated Clinical Laboratory · Las Vegas, NV	55	197
SUNRISE MOUNTAINVIEW HOSPITAL, INC.	31	74
Stephanie Wishnev Colorectal Surgery (Proctology) · Las Vegas, NV	17	53
Jonathan Strauss Pathology · Las Vegas, NV	15	45

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