What is Colleen Hartwig's specialty?

Colleen Hartwig (NPI 1720056757) is a Medicare-billing provider whose primary specialty is Internal Medicine in Livonia, MI.

Where does Colleen Hartwig practice?

Colleen Hartwig practices in Livonia, MI, based on the location reported in the CMS Medicare provider datasets for NPI 1720056757.

How much does Medicare pay Colleen Hartwig?

Colleen Hartwig (NPI 1720056757) received approximately $73K in total Medicare Part B payments, serving 191 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1720056757

Colleen HartwigD.O.

PRACTICEINPATIENT CONSULTANTS OF OHIO, PCSee all providers at this practice →

Internal MedicineLivonia, MII

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

449

Unique beneficiaries

—

Total services

850

Distinct HCPCS

Medicare payment

$73K

Peer benchmark

Total Medicare services vs. 3,459 Internal Medicine providers in MI — above median (cohort median 549).

PRESCRIBING · PART D · 2024

Total Rx claims

106

Beneficiaries

—

Total drug cost

$383

Distinct drugs

Brand share

40.6%

Top prescribed drugs

Isosorbide Mononitrate19 claims

Pantoprazole Sodium19 claims

Furosemide16 claims

Carvedilol16 claims

Clopidogrel Bisulfate13 claims

QUALITY · MIPS · 2024

Final MIPS score

89.6

Quality

85.1

Cost

77.9

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

0.62%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

REFERRAL NETWORK

Where Colleen Hartwig'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). 90 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
BOTSFORD GENERAL HOSPITAL	417	1,504
Timothy Mcknight Diagnostic Radiology · Farmington Hills, MI	162	727
Kathy Borovicka Diagnostic Radiology · Ann Arbor, MI	128	571
Elias Antypas Diagnostic Radiology · Farmington Hills, MI	118	458
Michael Schwartz Diagnostic Radiology · Birmingham, MI	115	405
ZUCKERMAN, STEVEN	98	325
Philip Kaplan Pulmonary Disease · Novi, MI	71	256
VANDER ROEST, WILFRED	71	444
Majid Qazi Cardiology · Farmington Hills, MI	68	289
Amy Iaquinta-Wilkerson Physician Assistant · Livonia, MI	64	334
Robert Pierce Neurology · Farmington Hills, MI	60	150
William Boudouris Neurology · Farmington Hills, MI	55	144

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