What is Gregory Lam's specialty?

Gregory Lam (NPI 1861416596) is a Medicare-billing provider whose primary specialty is Gastroenterology in Cincinnati, OH.

Where does Gregory Lam practice?

Gregory Lam practices in Cincinnati, OH, based on the location reported in the CMS Medicare provider datasets for NPI 1861416596.

How much does Medicare pay Gregory Lam?

Gregory Lam (NPI 1861416596) received approximately $94K in total Medicare Part B payments, serving 480 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1861416596

Gregory LamD.O.

GastroenterologyCincinnati, OHI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

648

Unique beneficiaries

—

Total services

714

Distinct HCPCS

Medicare payment

$79K

Peer benchmark

Total Medicare services vs. 553 Gastroenterology providers in OH — above median (cohort median 554).

PRESCRIBING · PART D · 2024

Total Rx claims

685

Beneficiaries

—

Total drug cost

$247K

Distinct drugs

Brand share

53.1%

Top prescribed drugs

Sodium, Potassium,mag Sulfates264 claims

Pantoprazole Sodium184 claims

Omeprazole47 claims

Dupilumab25 claims

Dicyclomine Hcl20 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$2K

Payment records

By payment type

Travel and Lodging$2K

Food and Beverage$565

Top paying entities

Travel and Lodging$2K

Food and Beverage$565

REFERRAL NETWORK

Where Gregory Lam'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). 63 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
St Elizabeth Medical Center, Inc Portable X-Ray Supplier · Edgewood, KY	206	746
ST ELIZABETH MEDICAL CENTER, INC	76	187
Niva Khan Internal Medicine · Southgate, KY	62	231
LUBBERS, DAVID	60	178
NPI 1154365245	60	312
MARKS, BYRON	56	137
Bradley Miller Diagnostic Radiology · Edgewood, KY	56	161
Philip Williams Gastroenterology · Florence, KY	49	188
John Guluzian Diagnostic Radiology · Edgewood, KY	47	104
Ralph Huller Pulmonary Disease · Crestview Hills, KY	46	96
Thomas Schussler Gastroenterology · Montgomery, OH	45	135
Kirk Doerger Diagnostic Radiology · Edgewood, KY	42	96

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