THOMAS WALLER
NPI 1780116376
Internal Medicine - Infectious Disease in Chicago, IL

Q: What is Thomas Waller's NPI number?

The NPI number for Thomas Waller is 1780116376. It was assigned to this individual provider in the NPPES registry on April 1, 2017.

Q: What is Thomas Waller's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Q: When was this NPI record last updated?

The NPPES record for Thomas Waller was last updated on July 16, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years 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 April 01, 2017PECOS EnrolledAccepts Medicare Assignment

1620 W HARRISON ST, CHICAGO, IL 60612(312) 942-5000 Get Directions Write a Review

NPPES record last updated: July 16, 2020. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jul 16, 2020, Apr 1, 2017 (2 updates tracked since 2017).

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About Thomas Waller NPPES

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

THOMAS WALLER (NPI 1780116376) is an individual infectious disease provider in Chicago, Illinois, licensed in Illinois (036.153369) and active in the NPI registry since April 2017. He is enrolled in Medicare PECOS, is affiliated with John H Stroger Jr Hospital, and maintains a secondary practice location in Olympia Fields.

NPPES Registry Identity

NPI1780116376

Entity TypeIndividualMale

Primary Taxonomy207RI0200X

Provider Legal NameTHOMAS WALLER

Location Address1620 W HARRISON STChicago, IL 60612-3801

Mailing Address5321 N Moody AveChicago, IL 60630-1048 · (708) 692-6971

Phone(312) 942-5000

Sole ProprietorNo

Medical School CMSMidwestern University College Of Dental Medicine, Downers GroveGraduated 2017

Enumeration DateApril 1, 2017

Last NPPES UpdateJuly 16, 20202 updates tracked since enumeration

NPPES CertifiedJuly 16, 2020

✔ NPI 1780116376 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RI0200X

License✔ Licensed in IL · 036.153369

Definition

An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

1620 W HARRISON ST, Chicago, IL 60612

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Secondary Practice Location 1

Location 120201 Crawford Ave, Attn: Postdoctoral EductationOlympia Fields, IL 60461-1010 · Phone (708) 747-4000

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

Thomas Waller 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 ID6002186459

PECOS Enrollment IDI20220629001167

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 Reassignments

Medicare enrollment records show Thomas Waller reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Cook County

0.3 mi

Family Medicine

605 S WOLCOTT AVE, SUITE 605
Chicago, IL 60612

Reassigned Medicare billing, Illinois enrollment
1,047 clinicians in this Medicare group

NPI 1912063439 (312) 864-4649

Northwest Infectious Disease Consultants, S.C.

13 mi

Infectious Disease

7900 N MILWAUKEE AVE, SUITE 231
Niles, IL 60714

Reassigned Medicare billing, Illinois enrollment
10 clinicians in this Medicare group

NPI 1194775221 (847) 663-9400

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 7

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

953 services457 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

562 services341 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

154 services144 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

134 services131 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

58 services38 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

25 services19 patients

Hospital Affiliations CMS Care Compare

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

John H Stroger Jr Hospital

Acute Care Hospitals · Chicago, IL

2/5 CMS rating

OwnershipGovernment - Local

CMS Certification Number140124

Location1901 W Harrison StChicago, IL 60612 · Cook County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60612 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

$138.86 typical visit price

range $60.08 – $183.39

Typical copayment $34.71 (range $15.02 – $45.84)

Most-billed visit code 99204

Established Patient

$105.70 typical visit price

range $18.97 – $148.12

Typical copayment $26.42 (range $4.74 – $37.03)

Most-billed visit code 99214

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 20

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

NICHOLAS RIGLER

Internal Medicine