RUSH OAK PARK PHYSICIANS GROUP LAKE STREET
NPI 1285503797
Family Medicine in Chicago, IL

NPI Status: Active since November 03, 2025

Contact Information

230 W MONROE ST
STE 100
CHICAGO, IL
ZIP 60606
Phone: (888) 663-6331
Fax: (415) 252-7176

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  • Organization
  • Family Medicine

About RUSH OAK PARK PHYSICIANS GROUP LAKE STREET

This page provides the complete NPI Profile along with additional information for Rush Oak Park Physicians Group Lake Street, a primary care provider established in Chicago, Illinois operating as a Family Medicine. The healthcare provider is registered in the NPI registry with number 1285503797 assigned on November 2025. The practitioner's primary taxonomy code is 207Q00000X. The provider is registered as an organization and their NPI record was last updated May 2026. Rush Oak Park Physicians Group Lake Street operates as a Multi-Specialty Group with one or more individual practitioners, who practice different areas of specialization. The authorized official of this NPI record is Scott Halper (Authorized Official)

NPI
1285503797
Provider Name
RUSH OAK PARK PHYSICIANS GROUP LAKE STREET
Entity Type
Organization
Location Address
230 W MONROE ST STE 100 CHICAGO, IL 60606
Location Phone
(888) 663-6331
Location Fax
(415) 252-7176
Mailing Address
1700 W VAN BUREN ST STE 161 CHICAGO, IL 60612
Mailing Phone
(312) 563-4577
Mailing Fax
(415) 252-7176
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
11-03-2025
Last Update Date
05-28-2026
Code Navigator

A primary care provider (PCP) like Rush Oak Park Physicians Group Lake Street sees people with common medical problems. The primary care provider might be a doctor, physician assistant, nurse practitioner or clinic that are usually involved in your long-term care. A PCP might provide preventive care, treat common medical conditions, identify urgent medical problems and refer you to specialists when necessary. Primary care is usually provided in an outpatient facility but if you are admitted to a hospital your PCP may assist in your care. The most common medical conditions seen by primary care providers are: hypertension, upper respiratory tract infections, depression or anxiety, back pain, arthritis, dermatitis, diabetes, urinary tract infections, etc .

Location Map

Secondary Locations

  • 3041 Butterfield Rd # E100
    Oak Brook, IL 60523
    (888) 663-6331
  • 730 Waukegan Rd
    Deerfield, IL 60015
    (888) 663-6331
  • 4999 Old Orchard Shopping Center Ste F12 & F13
    Skokie, IL 60077
    (888) 663-6331
  • 1640 N Damen Ave
    Chicago, IL 60647
    (888) 663-6331
  • 1931 N Halsted St
    Chicago, IL 60614
    (888) 663-6331
  • 109 N Aberdeen St Spc Sw2
    Chicago, IL 60607
    (888) 663-6331
  • 415 N LaSalle Dr Ste 100
    Chicago, IL 60654
    (888) 663-6331

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

Family Medicine

Taxonomy Code
207Q00000X
Type
Allopathic & Osteopathic Physicians
Taxonomy Description
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

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)
1207R00000XAllopathic & Osteopathic Physicians

Internal Medicine

 
2208000000XAllopathic & Osteopathic Physicians

Pediatrics

 

Group Taxonomy 193200000X MULTI-SPECIALTY GROUP

This provider is a business group of one or more individual practitioners, who practice with different areas of specialization.

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

SCOTT HALPER

Authorized Official Title
AUTHORIZED OFFICIAL
Authorized Official Phone
(312) 942-7770

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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 1285503797, 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 63. The final step is to find the difference between that total and the next multiple of ten (70 - 63 = 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
2
Unchanged
Pos 3
8
Doubled → 16 → 1 + 6
Pos 4
5
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
0
Unchanged
Pos 7
3
Doubled → 6
Pos 8
7
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
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 8 → 16 → 7 5 → 10 → 1 3 → 6 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

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

2 + 2 + 1 + 6 + 5 + 1 + 0 + 0 + 6 + 7 + 1 + 8 + 24 = 63

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

The next multiple of ten after 63 is 70. The difference is the calculated check digit.

70 - 63 = 7
This NPI is valid
The calculated check digit is 7, which matches the last digit of 1285503797.

Other Providers at the Same Location


The following 10 providers are registered at the same or a nearby location.

Internal Medicine
230 W MONROE ST, SUITE 1925
CHICAGO, IL 60606
Internal Medicine
230 W MONROE ST, SUITE 1925
CHICAGO, IL 60606
Internal Medicine
230 W MONROE ST, SUITE 1925
CHICAGO, IL 60606
Internal Medicine
230 W MONROE ST, SUITE 1925
CHICAGO, IL 60606
Nurse Practitioner (Family)
230 W MONROE ST, SUITE 2540
CHICAGO, IL 60606
Nursing Facility/Intermediate Care Facility
230 W MONROE ST
CHICAGO, IL 60606
Nurse Practitioner (Adult Health)
230 W MONROE ST, SUITE 2540
CHICAGO, IL 60606
Nurse Practitioner
230 W MONROE ST, SUITE 2540
CHICAGO, IL 60606
Nurse Practitioner (Family)
230 W MONROE ST, SUITE 2540
CHICAGO, IL 60606
Nurse Practitioner (Family)
230 W MONROE ST
CHICAGO, IL 60606

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1285503797, enumerated as an "organization" on November 03, 2025.

The provider is located at 230 W MONROE ST STE 100 CHICAGO, IL 60606 and the phone number is (888) 663-6331.

Family Medicine with taxonomy code 207Q00000X.