What is Gregory Maclennan's specialty?

Gregory Maclennan (NPI 1992731681) is a Medicare-billing provider whose primary specialty is Pathology in Cleveland, OH.

Where does Gregory Maclennan practice?

Gregory Maclennan practices in Cleveland, OH, based on the location reported in the CMS Medicare provider datasets for NPI 1992731681.

How much does Medicare pay Gregory Maclennan?

Gregory Maclennan (NPI 1992731681) received approximately $37K in total Medicare Part B payments, serving 290 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1992731681

Gregory MaclennanMD

PRACTICEUNIVERSITY GENETICSSee all providers at this practice →

PathologyCleveland, OHI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

531

Unique beneficiaries

—

Total services

1,022

Distinct HCPCS

Medicare payment

$37K

Peer benchmark

Total Medicare services vs. 492 Pathology providers in OH — below median (cohort median 1,492).

PRESCRIBING · PART D · 2024

No data available for this provider in 2024.

QUALITY · MIPS · 2024

Final MIPS score

81.2

Quality

63.1

Cost

74.2

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

0.26%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

REFERRAL NETWORK

Where Gregory Maclennan'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). 8 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
UNIVERSITY HOSPITALS CLEVELAND MEDICAL CENTER	125	323
Simon Kim Urology · Colorado Springs, CO	32	164
Robert Abouassaly Urology · Cleveland, OH	30	131
UNIVERSITY SUBURBAN HEALTH CENTER	27	62
Ivan Cakulev Cardiology · Cleveland, OH	18	24
STRAZISAR, LEAH	15	16
Prabhakar Rajiah Diagnostic Radiology · Rochester, MN	12	20
Lloyd Greene Cardiology · Cleveland, OH	11	15

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