MALCOLM GEBAUER MD
NPI 1437837762
Psychiatry & Neurology - Child & Adolescent Psychiatry in Chicago, IL

NPI Status: Active since July 07, 2023

Contact Information

1620 W HARRISON ST
CHICAGO, IL
ZIP 60612
Phone: (312) 942-5375

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  • Individual
  • Male
  • Years of Experience 3
  • Psychiatry & Neurology
  • Child & Adolescent Psychiatry
  • May Accept Medicare Approved Payment
  • PECOS Enrolled

About MALCOLM GEBAUER

This page provides the complete NPI Profile along with additional information for Malcolm Gebauer, a provider established in Chicago, Illinois with a medical specialization in Psychiatry & Neurology, focusing in child & adolescent psychiatry and more than 3 years of experience. He graduated from Rush Medical College Of Rush University in 2023. The healthcare provider is registered in the NPI registry with number 1437837762 assigned on July 2023. The practitioner's primary taxonomy code is 2084P0804X with license number 036.176874 (IL). The provider is registered as an individual and his NPI record was last updated May 2026.

NPI
1437837762
Provider Name
MALCOLM GEBAUER MD
Gender
Male
Entity Type
Individual
Location Address
1620 W HARRISON ST CHICAGO, IL 60612
Location Phone
(312) 942-5375
Mailing Address
1620 W HARRISON ST CHICAGO, IL 60612
Mailing Phone
(312) 942-5375
Medical School Name
RUSH MEDICAL COLLEGE OF RUSH UNIVERSITY
Graduation Year
2023
Is Sole Proprietor?
No
Enumeration Date
07-07-2023
Last Update Date
05-11-2026
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Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Psychiatry & Neurology Child & Adolescent Psychiatry

Taxonomy Code
2084P0804X
Type
Allopathic & Osteopathic Physicians
License No.
036.176874
License State
IL
Taxonomy Description
Child & Adolescent Psychiatry is a subspecialty of psychiatry with additional skills and training in the diagnosis and treatment of developmental, behavioral, emotional, and mental disorders of childhood and adolescence.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
12084P0800XAllopathic & Osteopathic Physicians

Psychiatry & Neurology
Psychiatry

036.176874 (IL)
2390200000XStudent, Health Care

Student in an Organized Health Care Education/Training Program

036.176874 (IL)

Medicare Participation & PECOS Enrollment Status

Malcolm Gebauer is registered with Medicare but maybe doesn't accept claims assignment. If you are a Medicare beneficiary call and confirm with the provider before seeking any services.

Malcolm Gebauer is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • PECOS PAC ID: 1052809274

    What is the PECOS Associate Control ID?
    A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.

  • PECOS Enrollment ID: I20251021001481

    What is the Provider Enrollment ID?
    The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.

  • Accepts Medicare Assignment? Maybe

    What does it mean "accepts medicare assignment"?
    When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
    A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

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NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1437837762, we treat the final digit (2) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 68. The final step is to find the difference between that total and the next multiple of ten (70 - 68 = 2).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
4
Unchanged
Pos 3
3
Doubled → 6
Pos 4
7
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
3
Unchanged
Pos 7
7
Doubled → 14 → 1 + 4
Pos 8
7
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
Check
2
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 3 → 6 8 → 16 → 7 7 → 14 → 5 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 4 + 6 + 7 + 1 + 6 + 3 + 1 + 4 + 7 + 1 + 2 + 24 = 68

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 68 is 70. The difference is the calculated check digit.

70 - 68 = 2
This NPI is valid
The calculated check digit is 2, which matches the last digit of 1437837762.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Emergency Medicine
1620 W HARRISON ST, DEPT. OF EMERGENCY MEDICINE TOWER
CHICAGO, IL 60612
Emergency Medicine
1620 W HARRISON ST, DEPARTMENT OF EMERGENCY MEDICINE
CHICAGO, IL 60612
Social Worker (Clinical)
1620 W HARRISON ST, TOWER RESOURCE CENTER, STE 04527
CHICAGO, IL 60612
Student in an Organized Health Care Education/Training Program
1620 W HARRISON ST
CHICAGO, IL 60612
Registered Nurse (Pediatrics)
1620 W HARRISON ST
CHICAGO, IL 60612
Dietitian, Registered
1620 W HARRISON ST
CHICAGO, IL 60612
Registered Nurse (Neonatal Intensive Care)
1620 W HARRISON ST
CHICAGO, IL 60612
Plastic Surgery
1620 W HARRISON ST
CHICAGO, IL 60612
Internal Medicine
1620 W HARRISON ST
CHICAGO, IL 60612
Internal Medicine
1620 W HARRISON ST
CHICAGO, IL 60612
Psychiatry & Neurology (Neurology)
1620 W HARRISON ST
CHICAGO, IL 60612
Psychiatry & Neurology (Psychiatry)
1620 W HARRISON ST
CHICAGO, IL 60612
Orthopaedic Surgery
1620 W HARRISON ST
CHICAGO, IL 60612
Internal Medicine (Infectious Disease)
1620 W HARRISON ST
CHICAGO, IL 60612
Nurse Practitioner (Neonatal, Critical Care)
1620 W HARRISON ST
CHICAGO, IL 60612
Anesthesiology
1620 W HARRISON ST
CHICAGO, IL 60612
Surgery
1620 W HARRISON ST
CHICAGO, IL 60612
Nurse Practitioner (Psychiatric/Mental Health)
1620 W HARRISON ST
CHICAGO, IL 60612
Nurse Anesthetist, Certified Registered
1620 W HARRISON ST
CHICAGO, IL 60612
Nurse Practitioner (Acute Care)
1620 W HARRISON ST
CHICAGO, IL 60612

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1437837762, enumerated as an "individual" on July 07, 2023.

The provider is located at 1620 W HARRISON ST CHICAGO, IL 60612 and the phone number is (312) 942-5375.

Psychiatry & Neurology with taxonomy code 2084P0804X and a focus in Child & Adolescent Psychiatry.