What is Gregory Mclennan's specialty?

Gregory Mclennan (NPI 1912160052) is a Medicare-billing provider whose primary specialty is Urology in Saint Louis, MO.

Where does Gregory Mclennan practice?

Gregory Mclennan practices in Saint Louis, MO, based on the location reported in the CMS Medicare provider datasets for NPI 1912160052.

How much does Medicare pay Gregory Mclennan?

Gregory Mclennan (NPI 1912160052) received approximately $236K in total Medicare Part B payments, serving 761 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1912160052

Gregory MclennanMD

UrologySaint Louis, MOI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,699

Unique beneficiaries

—

Total services

2,157

Distinct HCPCS

Medicare payment

$183K

Peer benchmark

Total Medicare services vs. 182 Urology providers in MO — above median (cohort median 3,465).

PRESCRIBING · PART D · 2024

Total Rx claims

2,809

Beneficiaries

—

Total drug cost

$393K

Distinct drugs

Brand share

38.4%

Top prescribed drugs

Tamsulosin Hcl798 claims

Mirabegron315 claims

Ciprofloxacin Hcl295 claims

Hydrocodone/Acetaminophen266 claims

Finasteride242 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$60K

Payment records

189

By payment type

Consulting Fee$46K

Travel and Lodging$9K

Food and Beverage$5K

Honoraria$350

Top paying entities

Consulting Fee$46K

Travel and Lodging$9K

Food and Beverage$5K

Honoraria$350

REFERRAL NETWORK

Where Gregory Mclennan'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). 19 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
MERCY HOSPITALS EAST COMMUNITIES	195	1,569
ROSENTHAL, DEBRA	25	79
Colleen Spieler Diagnostic Radiology · Saint Louis, MO	18	63
STICKLEY, LOUIS	17	39
GAUM, LEONARD	17	46
Cindy Zhang Diagnostic Radiology · Saint Louis, MO	16	40
James Nepute Diagnostic Radiology · Saint Louis, MO	16	51
CREPPS, LOUIS	15	54
Jason Skyles Diagnostic Radiology · Saint Louis, MO	14	65
Bruce Czarnik Cardiology · Saint Louis, MO	14	38
Shien Micchelli Pathology · Baltimore, MD	14	39
DALAN, LAWRENCE	14	36

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