Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. THOMAS GREGORY LIENHOOP MD
NPI 1588056204
Radiology - Diagnostic Radiology in Evanston, IL

Q: What is Thomas Lienhoop's NPI number?

The NPI number for Thomas Lienhoop is 1588056204. It was assigned to this individual provider in the NPPES registry on March 4, 2015.

Q: What is Thomas Lienhoop's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Q: When was this NPI record last updated?

The NPPES record for Thomas Lienhoop was last updated on September 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 39 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since March 04, 2015PECOS EnrolledAccepts Medicare Assignment

2650 RIDGE AVE # 1223, EVANSTON, IL 60201(847) 570-2040 Get Directions Write a Review

NPPES record last updated: September 14, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 14, 2026, Feb 5, 2024, Jun 19, 2019 and 2 more (5 updates tracked since 2018).

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About Dr. Thomas Gregory Lienhoop Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. THOMAS GREGORY LIENHOOP MD (NPI 1588056204) is an individual diagnostic radiology provider in Evanston, Illinois, licensed in Illinois (036165443) and active in the NPI registry since March 2015. He is enrolled in Medicare PECOS, is affiliated with Northshore University Healthsystem - Evanston Hospital, and maintains a secondary practice location in Chicago.

NPPES Registry Identity

NPI1588056204

Entity TypeIndividualMale

Primary Taxonomy2085R0202X

Provider Legal NameDR. THOMAS GREGORY LIENHOOPCredential: MD

Location Address2650 RIDGE AVE # 1223Evanston, IL 60201-1700

Mailing Address2650 Ridge Ave # 1223Evanston, IL 60201-1700 · (847) 570-2040

Phone(847) 570-2040

Sole ProprietorNo

Medical School CMSNorthwestern University Feinberg Medical SchoolGraduated 2018

Enumeration DateMarch 4, 2015

Last NPPES UpdateSeptember 14, 20265 updates tracked since enumeration

NPPES CertifiedSeptember 14, 2026

✔ NPI 1588056204 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians

Taxonomy Code2085R0202X

Licenses✔ Licensed in IL · 036165443✔ Licensed in IL · 125071807

Definition

A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.

2650 RIDGE AVE # 1223, Evanston, IL 60201

Open in Google Maps ↗

Secondary Practice Location 1

Location 15841 S Maryland Ave # Mc2026Chicago, IL 60637-1443 · Phone (773) 702-1161

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Thomas Gregory Lienhoop Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6800143991

PECOS Enrollment IDI20240220004483

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Thomas Lienhoop reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Endeavor Health Medical Group

Same address

Anesthesiology

2650 RIDGE AVE, ANESTHESIOLOGY ROOM 3905
Evanston, IL 60201

Reassigned Medicare billing, Illinois enrollment
4,841 clinicians in this Medicare group

NPI 1265695944 (847) 570-2760

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 10

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Screening 3d breast mammography 77063

Screening 3D breast mammography is a procedure that uses low-dose X-rays to create detailed images of the breast. This allows for early detection of any unusual changes or growths. It's a non-invasive, outpatient procedure that typically takes about 30 minutes.

473 services473 patients

Screening mammography 77067

Screening mammography is a preventative measure that uses low-dose X-rays to take images of the chest area. It's a key tool in early detection of abnormalities, helping to identify issues before they become symptomatic. It is recommended annually for certain age groups.

473 services473 patients

Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066) G0279

Diagnostic digital breast tomosynthesis is a 3D imaging test that allows doctors to examine your breast tissue layer by layer. It's performed on one or both sides. It helps in detecting abnormalities more accurately. It's often done in addition to other tests.

101 services100 patients

Diagnostic mammography of 1 breast 77065

Diagnostic mammography of 1 breast is a detailed imaging test that allows doctors to closely examine a specific area in the breast. It's often used when a routine screening reveals an abnormality. This test can help identify any unusual changes or issues.

61 services60 patients

Diagnostic mammography of both breasts 77066

Diagnostic mammography involves using special imaging technology to capture detailed images of both breasts. This procedure helps in identifying any unusual changes or abnormalities. It's a crucial step in ensuring breast health and early detection of potential issues.

58 services58 patients

Limited ultrasound scan of 1 breast 76642

A limited ultrasound scan of one breast is a non-invasive imaging test. It uses sound waves to create pictures of the inside of your breast. It helps identify any unusual growths or changes. It's safe, quick, and typically painless.

35 services35 patients

Hospital Affiliations CMS Care Compare 4

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Northshore University Healthsystem - Evanston Hospital

Acute Care Hospitals · Evanston, IL

5/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number140010

Location2650 Ridge AveEvanston, IL 60201 · Cook County

Emergency services Birthing friendly

Swedish Hospital

Acute Care Hospitals · Chicago, IL

2/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number140114

Location5145 N California AveChicago, IL 60625 · Cook County

Emergency services Birthing friendly

Northwestern Lake Forest Hospital

Acute Care Hospitals · Lake Forest, IL

5/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number140130

Location1000 N Westmoreland RoadLake Forest, IL 60045 · Lake County

Emergency services Birthing friendly

Northwestern Memorial Hospital

Acute Care Hospitals · Chicago, IL

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140281

Location251 E Huron StChicago, IL 60611 · Cook County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60201 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$94.06 typical visit price

range $60.08 – $183.39

Typical copayment $23.51 (range $15.02 – $45.84)

Most-billed visit code 99203

Established Patient

$74.80 typical visit price

range $18.97 – $148.12

Typical copayment $18.70 (range $4.74 – $37.03)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. LOUISE SUZANNE MATTHEWS M.D.

Hospitalist

2650 RIDGE AVE # 1223
EVANSTON, IL 60201

Cook County (847) 570-2222

CLAIRE JEAN CHAPSKI PA-C

Physician Assistant

2650 RIDGE AVE # 1223
EVANSTON, IL 60201

Cook County (847) 570-1010

DR. RENY MARY MATHEW MD

Hospitalist

2650 RIDGE AVE # 1223
EVANSTON, IL 60201

Cook County (847) 982-3172

JIMMY PARIKH

Hospitalist

2650 RIDGE AVE # 1223
EVANSTON, IL 60201

Cook County (847) 982-3172

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Thomas Lienhoop's NPI number?

The NPI number for Thomas Lienhoop is 1588056204. It was assigned to this individual provider in the NPPES registry on March 4, 2015.

Where is Thomas Lienhoop located?

Thomas Lienhoop practices at 2650 Ridge Ave # 1223, Evanston, IL 60201. The listed phone number is (847) 570-2040.

What is Thomas Lienhoop's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Is Thomas Lienhoop enrolled in Medicare?

Yes. Thomas Lienhoop is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Thomas Lienhoop's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Thomas Lienhoop reassigns Medicare benefits to Endeavor Health Medical Group (Evanston, IL). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Thomas Lienhoop's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Thomas Lienhoop affiliated with any hospitals?

According to CMS data, Thomas Lienhoop is affiliated with Northshore University Healthsystem - Evanston Hospital, Swedish Hospital, Northwestern Lake Forest Hospital and Northwestern Memorial Hospital.

When was this NPI record last updated?

The NPPES record for Thomas Lienhoop was last updated on September 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 39 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.