What is Mark Lemert's specialty?

Mark Lemert (NPI 1306810478) is a Medicare-billing provider whose primary specialty is Gastroenterology in New York, NY.

Where does Mark Lemert practice?

Mark Lemert practices in New York, NY, based on the location reported in the CMS Medicare provider datasets for NPI 1306810478.

How much does Medicare pay Mark Lemert?

Mark Lemert (NPI 1306810478) received approximately $58K in total Medicare Part B payments, serving 255 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1306810478

Mark LemertM.D.

GastroenterologyNew York, NYI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

410

Unique beneficiaries

—

Total services

454

Distinct HCPCS

Medicare payment

$45K

Peer benchmark

Total Medicare services vs. 1,360 Gastroenterology providers in NY — above median (cohort median 521).

PRESCRIBING · PART D · 2024

Total Rx claims

290

Beneficiaries

—

Total drug cost

$24K

Distinct drugs

Brand share

45.9%

Top prescribed drugs

Omeprazole76 claims

Peg3350/Sod Sulf,bicarb,cl/Kcl58 claims

Sod Picosulf/Mag Ox/Citric Ac34 claims

Balsalazide Disodium27 claims

Sodium Chloride/Nahco3/Kcl/Peg25 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (1)

CCN 330214

Hospital

REFERRAL NETWORK

Where Mark Lemert'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 · 13 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Laboratory Corporation Of America Holdings Clinical Laboratory · Raritan, NJ	63	132
NYU LANGONE HOSPITALS	14	33
Antonio Galvao Neto Pathology · Houston, TX	13	25
Charles Love Clinical Cardiac Electrophysiology · Baltimore, MD	11	23

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
NYU LANGONE HOSPITALS	76	223
Laboratory Corporation Of America Holdings Clinical Laboratory · Raritan, NJ	38	70
NEUDACHIN, LUDMILLA	33	68
MARMEL, RICHARD	22	41
Charles Love Clinical Cardiac Electrophysiology · Baltimore, MD	14	23
NEW YORK CITY HEALTH AND HOSPITALS CORPORATION	14	22
NPI 1912993221	13	35
Antonio Galvao Neto Pathology · Houston, TX	12	17
Quest Diagnostics Incorporated Clinical Laboratory · Clifton, NJ	11	31
Edward Greaney Internal Medicine · New York, NY	11	24
Francis Obrien Cardiology · New York, NY	11	32
NYU LANGONE HOSPITALS	11	33

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