What is Randall Lengeling's specialty?

Randall Lengeling (NPI 1912976861) is a Medicare-billing provider whose primary specialty is Gastroenterology in Dubuque, IA.

Where does Randall Lengeling practice?

Randall Lengeling practices in Dubuque, IA, based on the location reported in the CMS Medicare provider datasets for NPI 1912976861.

How much does Medicare pay Randall Lengeling?

Randall Lengeling (NPI 1912976861) received approximately $2K in total Medicare Part B payments, serving 13 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1912976861

Randall LengelingM.D.

PRACTICEDUBUQUE INTERNAL MEDICINE PCSee all providers at this practice →

GastroenterologyDubuque, IAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

Unique beneficiaries

—

Total services

Distinct HCPCS

Medicare payment

$42

Peer benchmark

Total Medicare services vs. 87 Gastroenterology providers in IA — bottom quintile (cohort median 771).

PRESCRIBING · PART D · 2024

Total Rx claims

829

Beneficiaries

—

Total drug cost

$25K

Distinct drugs

Brand share

0.0%

Top prescribed drugs

Omeprazole556 claims

Sucralfate128 claims

Pantoprazole Sodium98 claims

Sulfasalazine18 claims

Mesalamine16 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.

REFERRAL NETWORK

Where Randall Lengeling'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). 28 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Kirby Clark Diagnostic Radiology · Waterloo, IA	49	137
Warren Spencer Diagnostic Radiology · Cedar Rapids, IA	49	120
Andrew Vanderheyden Pathology · Dubuque, IA	46	87
Hillard Salas Internal Medicine · Dubuque, IA	33	144
Alexander Johnson Hospitalist · Dubuque, IA	33	110
Timothy Timmerman Pathology · Dubuque, IA	29	46
Alex Horchak Urology · Dubuque, IA	29	54
John Whalen Nephrology · Dubuque, IA	28	164
Joseph Compton Internal Medicine · Davenport, IA	24	108
Mark Liaboe Internal Medicine · Dubuque, IA	23	68
WARD, MICHAEL	22	47
Melissa Casey Physician Assistant · Dubuque, IA	19	59

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