DR. JOHN JOSEPH SHEEHAN MD
NPI 1699906487
Radiology - Diagnostic Radiology in Evanston, IL

NPI Status: Active since July 28, 2009

Contact Information

2650 RIDGE AVE
EVANSTON HOSPITAL
EVANSTON, IL
ZIP 60201
Phone: (847) 570-2000

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  • Individual
  • Male
  • Radiology
  • Diagnostic Radiology

About JOHN SHEEHAN

This page provides the complete NPI Profile along with additional information for John Sheehan, a provider established in Evanston, Illinois with a medical specialization in Radiology, focusing in diagnostic radiology . The healthcare provider is registered in the NPI registry with number 1699906487 assigned on July 2009. The practitioner's primary taxonomy code is 2085R0202X with license number 125.053863 (IL). The provider is registered as an individual and his NPI record was last updated 17 years ago.

NPI
1699906487
Provider Name
DR. JOHN JOSEPH SHEEHAN MD
Gender
Male
Entity Type
Individual
Location Address
2650 RIDGE AVE EVANSTON HOSPITAL EVANSTON, IL 60201
Location Phone
(847) 570-2000
Mailing Address
2650 RIDGE AVE EVANSTON HOSPITAL EVANSTON, IL 60201
Mailing Phone
(847) 570-2000
Is Sole Proprietor?
No
Enumeration Date
07-28-2009
Last Update Date
07-28-2009
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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

Radiology Diagnostic Radiology

Taxonomy Code
2085R0202X
Type
Allopathic & Osteopathic Physicians
License No.
125.053863
License State
IL
Taxonomy Description
A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.

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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 1699906487, we treat the final digit (7) 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 73. The final step is to find the difference between that total and the next multiple of ten (80 - 73 = 7).

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
9
Doubled → 18 → 1 + 8
Pos 4
9
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
0
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
4
Unchanged
Pos 9
8
Doubled → 16 → 1 + 6
Check
7
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 9 → 18 → 9 9 → 18 → 9 6 → 12 → 3 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 + 1 + 8 + 9 + 1 + 8 + 0 + 1 + 2 + 4 + 1 + 6 + 24 = 73

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

The next multiple of ten after 73 is 80. The difference is the calculated check digit.

80 - 73 = 7
This NPI is valid
The calculated check digit is 7, which matches the last digit of 1699906487.

Other Providers at the Same Location


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

Internal Medicine (Cardiovascular Disease)
2650 RIDGE AVE
EVANSTON, IL 60201
Physician Assistant (Surgical)
2650 RIDGE AVE, DIVISION OF NEUROSURGERY
EVANSTON, IL 60201
Genetic Counselor, MS
2650 RIDGE AVE, FETAL DIAGNOSTICS
EVANSTON, IL 60201
Genetic Counselor, MS
2650 RIDGE AVE, FETAL DIAGNOSTICS, RM 1400
EVANSTON, IL 60201
Radiology (Neuroradiology)
2650 RIDGE AVE, DEPARTMENT OF RADIOLOGY, G507
EVANSTON, IL 60201
Internal Medicine (Pulmonary Disease)
2650 RIDGE AVE
EVANSTON, IL 60201
Anesthesiology
2650 RIDGE AVE, EVANSTON HOSPITAL RM 1210
EVANSTON, IL 60201
Pathology (Anatomic Pathology & Clinical Pathology)
2650 RIDGE AVE, EVANSTON HOSPITAL RM 1210
EVANSTON, IL 60201
Pathology (Anatomic Pathology & Clinical Pathology)
2650 RIDGE AVE, EVANSTON HOSPITAL RM 1210
EVANSTON, IL 60201
Pathology (Clinical Pathology/Laboratory Medicine)
2650 RIDGE AVE, EVANSTON HOSPITAL
EVANSTON, IL 60201
Pathology (Anatomic Pathology)
2650 RIDGE AVE, EVANSTON HOSPITAL
EVANSTON, IL 60201
Pharmacist (Pharmacotherapy)
2650 RIDGE AVE, INPATIENT PHARMACY
EVANSTON, IL 60201
Specialist
2650 RIDGE AVE
EVANSTON, IL 60201
Pathology (Anatomic Pathology & Clinical Pathology)
2650 RIDGE AVE, EVANSTON HOSPITAL RM 1210
EVANSTON, IL 60201
Pharmacist
2650 RIDGE AVE
EVANSTON, IL 60201
Pathology (Anatomic Pathology & Clinical Pathology)
2650 RIDGE AVE, EVANSTON HOSPITAL RM 1210
EVANSTON, IL 60201
Anesthesiology
2650 RIDGE AVE, ANESTHESIOLOGY ROOM 3905
EVANSTON, IL 60201
Anesthesiology
2650 RIDGE AVE, EVANSTON HOSPITAL
EVANSTON, IL 60201
Pathology (Anatomic Pathology & Clinical Pathology)
2650 RIDGE AVE, EVANSTON HOSPITAL
EVANSTON, IL 60201
Pathology (Clinical Pathology/Laboratory Medicine)
2650 RIDGE AVE, EVANSTON HOSPITAL
EVANSTON, IL 60201

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1699906487, enumerated as an "individual" on July 28, 2009.

The provider is located at 2650 RIDGE AVE EVANSTON HOSPITAL EVANSTON, IL 60201 and the phone number is (847) 570-2000.

Radiology with taxonomy code 2085R0202X and a focus in Diagnostic Radiology.