DONALD TANIS M.D.
NPI 1902822158
Internal Medicine - Adult Congenital Heart Disease in Chicago, IL

Q: What is Donald Tanis's NPI number?

The NPI number for Donald Tanis is 1902822158. It was assigned to this individual provider in the NPPES registry on July 14, 2006.

Q: What is Donald Tanis's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Adult Congenital Heart Disease, with taxonomy code 207RA0002X.

Q: When was this NPI record last updated?

The NPPES record for Donald Tanis was last updated on April 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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 July 14, 2006PECOS EnrolledAccepts Medicare Assignment

1725 W HARRISON ST, SUITE 1159, CHICAGO, IL 60612(312) 942-5020(312) 942-4039 Get Directions Write a Review

NPPES record last updated: April 22, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Apr 22, 2026, Sep 8, 2023 (2 updates tracked since 2023).

On this page

About Donald Tanis M.d. NPPES

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

DONALD TANIS M.D. (NPI 1902822158) is an individual adult congenital heart disease provider in Chicago, Illinois, licensed in Illinois (036083772) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Loyola Gottlieb Memorial Hospital, and is a graduate of Other (1985).

NPPES Registry Identity

NPI1902822158

Entity TypeIndividualMale

Primary Taxonomy207RA0002X

Provider Legal NameDONALD TANISCredential: M.D.

Location Address1725 W HARRISON ST, SUITE 1159Chicago, IL 60612-3841

Mailing Address1725 W Harrison St, Suite 1159Chicago, IL 60612-3841 · (312) 942-5020 · Fax (312) 942-4039

Phone(312) 942-5020

Fax(312) 942-4039

Sole ProprietorNo

Medical School CMSOtherGraduated 1985

Enumeration DateJuly 14, 2006

Last NPPES UpdateApril 22, 20262 updates tracked since enumeration

NPPES CertifiedApril 22, 2026

✔ NPI 1902822158 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Adult Congenital Heart DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RA0002X

License✔ Licensed in IL · 036083772

Definition

A physician who specializes in the care and treatment of adults with congenital heart disease. Adult congenital heart disease (ACHD) physicians are trained to understand the complexities of congenital heart disease, anatomy, physiology, surgical repairs, and long-term complications and use that to manage ACHD with acquired heart disease, including heart failure, arrhythmias, and pulmonary hypertension.

Also ListedInternal Medicine · Cardiovascular DiseaseTaxonomy 207RC0000X · License 036-083772 (IL)

1725 W HARRISON ST, Chicago, IL 60612

Open in Google Maps ↗

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Donald Tanis M.d. 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 ID9234266479

PECOS Enrollment IDI20100420001031

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.

Areas of Expertise CMS Part B claims 12

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.

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010

A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.

814 services610 patients

Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306

This is a heart ultrasound, also known as an echocardiogram. It uses sound waves to create pictures of your heart, showing how blood flows through it. The color depicts the blood flow's speed and direction. It also checks the heart's valves to ensure they're working properly.

179 services176 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.

134 services77 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

48 services48 patients

Routine electrocardiogram (ecg) using at least 12 leads with tracing 93005

An Electrocardiogram (ECG) is a simple, painless test that records the heart's electrical activity. Using 12 leads attached to your skin, it generates a tracing of your heart rhythm. It helps detect any heart problems by showing the timing and strength of electrical signals passing through each part of your heart.

29 services29 patients

Heart rhythm review and interpretation of continous external ekg over 8-15 days 93248

This service involves wearing a device for 8-15 days that continuously records your heart's electrical activity. It helps in identifying irregular heart rhythms. The recorded data is then reviewed and interpreted by a healthcare professional for any abnormalities.

27 services27 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

23 services22 patients

Heart rhythm review, and interpretation of continous external ekg over more than 48 hours up to 7 days 93244

A heart rhythm review involves monitoring your heart's electrical activity for more than 48 hours up to 7 days. Using a device called an external EKG, doctors can track your heartbeats to detect irregularities and help diagnose heart conditions.

14 services14 patients

Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes 99152

This procedure involves a doctor administering a medication to reduce your consciousness during a procedure. This helps in managing discomfort and anxiety. The initial application lasts for 15 minutes and is for individuals aged 5 years or older.

14 services14 patients

Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician 93018

An exercise or drug-induced heart stress test with ECG is a procedure to assess how your heart functions under stress. It can involve exercising or medication to make your heart work harder while an ECG records its activity. A physician reviews the results.

12 services12 patients

Ultrasound of heart during rest, exercise and/or drug-induced stress with report 93350

This procedure involves using ultrasound imaging to view your heart at rest, during exercise, and/or under drug-induced stress. It helps assess how well your heart responds to exertion. A report of the findings is provided after the test.

12 services12 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.

11 services11 patients

Hospital Affiliations CMS Care Compare 2

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

Loyola Gottlieb Memorial Hospital

Acute Care Hospitals · Melrose Park, IL

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140008

Location701 West North AveMelrose Park, IL 60160 · Cook County

Emergency services

Loyola University Medical Center

Acute Care Hospitals · Maywood, IL

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140276

Location2160 S 1st AvenueMaywood, IL 60153 · Cook County

Emergency services Birthing friendly

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.

DR. MARTA BATUS MD

Internal Medicine (Medical Oncology)

1725 W HARRISON ST, SUITE 809
CHICAGO, IL 60612

Cook County (312) 563-2487

KM WILLIAMS MD SC

Clinic/Center (Ophthalmologic Surgery)

1725 W HARRISON ST, STE 910
CHICAGO, IL 60612

Cook County (312) 622-7320

KENNETH M BOYER M.D.

Pediatrics (Pediatric Infectious Diseases)

1725 W HARRISON ST, SUITE 710
CHICAGO, IL 60612

Cook County (312) 942-3034

RUSH UNIVERSITY MEDICAL CENTER

Internal Medicine (Hematology)

1725 W HARRISON ST, SUITE 1010
CHICAGO, IL 60612

Cook County (312) 942-5904

DAVID ANSELL M.D.

Internal Medicine

1725 W HARRISON ST, SUITE 263
CHICAGO, IL 60612

Cook County (312) 942-6700

MIDWEST NEUROPSYCHIATRIC ASSOC LTD

Specialist

1725 W HARRISON ST, SUITE 744
CHICAGO, IL 60612

Cook County (312) 942-0118

JANICE DIESCHBOURG M.D.

Radiology (Diagnostic Radiology)

1725 W HARRISON ST, SUITE 155
CHICAGO, IL 60612

Cook County (312) 563-3269

AFFILIATED UROLOGISTS, LTD

Specialist

1725 W HARRISON ST, SUITE 762
CHICAGO, IL 60612

Cook County (312) 563-3447

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 Donald Tanis's NPI number?

The NPI number for Donald Tanis is 1902822158. It was assigned to this individual provider in the NPPES registry on July 14, 2006.

Where is Donald Tanis located?

Donald Tanis practices at 1725 W Harrison St Suite 1159, Chicago, IL 60612. The listed phone number is (312) 942-5020.

What is Donald Tanis's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Adult Congenital Heart Disease, with taxonomy code 207RA0002X.

Is Donald Tanis enrolled in Medicare?

Yes. Donald Tanis 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.

Is Donald Tanis affiliated with any hospitals?

According to CMS data, Donald Tanis is affiliated with Loyola Gottlieb Memorial Hospital and Loyola University Medical Center.

When was this NPI record last updated?

The NPPES record for Donald Tanis was last updated on April 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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.