DR. ARNOLD B GRAUER MD
NPI 1619960184
Internal Medicine in Chicago, IL

NPI Status: Active since August 30, 2005

Contact Information

233 E ERIE ST
SUITE 710
CHICAGO, IL
ZIP 60611
Phone: (312) 624-9671
Fax: (312) 624-8849

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  • Individual
  • Male
  • Internal Medicine

About ARNOLD GRAUER

This page provides the complete NPI Profile along with additional information for Arnold Grauer, an internist established in Chicago, Illinois with a medical specialization in Internal Medicine. The healthcare provider is registered in the NPI registry with number 1619960184 assigned on August 2005. The practitioner's primary taxonomy code is 207R00000X with license number 036039248 (IL). The provider is registered as an individual and his NPI record was last updated 16 years ago.

NPI
1619960184
Provider Name
DR. ARNOLD B GRAUER MD
Gender
Male
Entity Type
Individual
Location Address
233 E ERIE ST SUITE 710 CHICAGO, IL 60611
Location Phone
(312) 624-9671
Location Fax
(312) 624-8849
Mailing Address
233 E ERIE ST SUITE 710 CHICAGO, IL 60611
Mailing Phone
(312) 624-9671
Mailing Fax
(312) 624-8849
Is Sole Proprietor?
Yes
Enumeration Date
08-30-2005
Last Update Date
06-03-2010
Code Navigator

An internist like Arnold Grauer is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.

Location Map

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

Internal Medicine

Taxonomy Code
207R00000X
Type
Allopathic & Osteopathic Physicians
License No.
036039248
License State
IL
Taxonomy Description
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
C41434MEDICARE UPIN (02)IL 
110087227OTHER (01)ILRR MEDICARE
L25620MEDICARE PIN (08)IL 
036039248MEDICAID (05)IL 

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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 1619960184, we treat the final digit (4) 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 66. The final step is to find the difference between that total and the next multiple of ten (70 - 66 = 4).

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
6
Unchanged
Pos 3
1
Doubled → 2
Pos 4
9
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
6
Unchanged
Pos 7
0
Doubled → 0
Pos 8
1
Unchanged
Pos 9
8
Doubled → 16 → 1 + 6
Check
4
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 1 → 2 9 → 18 → 9 0 → 0 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 2 + 9 + 1 + 8 + 6 + 0 + 1 + 1 + 6 + 24 = 66

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

The next multiple of ten after 66 is 70. The difference is the calculated check digit.

70 - 66 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1619960184.

Other Providers at the Same Location


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

Allergy & Immunology (Allergy)
233 E ERIE ST, 810
CHICAGO, IL 60611
Internal Medicine (Cardiovascular Disease)
233 E ERIE ST, SUITE 412
CHICAGO, IL 60611
Psychologist (Clinical)
233 E ERIE ST, STE 608
CHICAGO, IL 60611
Counselor (Professional)
233 E ERIE ST
CHICAGO, IL 60611
Internal Medicine (Cardiovascular Disease)
233 E ERIE ST, SUITE 500
CHICAGO, IL 60611
Pediatrics
233 E ERIE ST, SUITE 304
CHICAGO, IL 60611
Internal Medicine (Cardiovascular Disease)
233 E ERIE ST, SUITE 500
CHICAGO, IL 60611
Dentist (General Practice)
233 E ERIE ST, SITE 406
CHICAGO, IL 60611
Psychologist (Clinical)
233 E ERIE ST, SUITE 601
CHICAGO, IL 60611
Psychologist (Clinical)
233 E ERIE ST, SUITE 608
CHICAGO, IL 60611
Psychologist (Clinical)
233 E ERIE ST, SUITE 808
CHICAGO, IL 60611
Counselor (Professional)
233 E ERIE ST, 601
CHICAGO, IL 60611
Dentist (General Practice)
233 E ERIE ST, SUITE #812
CHICAGO, IL 60611
Dentist (General Practice)
233 E ERIE ST, SUITE 602
CHICAGO, IL 60611
Psychologist (Clinical)
233 E ERIE ST, SUITE 309
CHICAGO, IL 60611
Psychiatry & Neurology (Neurology)
233 E ERIE ST, SUITE 500
CHICAGO, IL 60611
Physical Therapist (Orthopedic)
233 E ERIE ST, SUITE 404
CHICAGO, IL 60611
Psychologist (Clinical)
233 E ERIE ST
CHICAGO, IL 60611
Psychologist
233 E ERIE ST, SUITE 409
CHICAGO, IL 60611
Psychologist (Clinical)
233 E ERIE ST, SUITE#212
CHICAGO, IL 60611

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1619960184, enumerated as an "individual" on August 30, 2005.

The provider is located at 233 E ERIE ST SUITE 710 CHICAGO, IL 60611 and the phone number is (312) 624-9671.

Internal Medicine with taxonomy code 207R00000X.

The provider might be accepting Accepts: Medicare, Medicaid and Railroad Medicare. Please consult your insurance carrier or call the provider to verify.