ABDULLAH B. CHAHIN MD – NPI #1972736890
Internal Medicine

An internist who diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.

Health Care Provider Taxonomy Code for Internal Medicine

ABDULLAH CHAHIN is a physician located in CHICAGO RIDGE, IL. NPPES has assigned the NPI number 1972736890 to ABDULLAH CHAHIN on August 26, 2009. It is a Type-1 NPI, indicating this NPI number is associated with an individual. According to the NPI Registry, there are 4 additional location(s) assigned to this provider which are listed below. With multiple taxonomy codes selected, the primary taxonomy selected by this provider is 207RC0200X from the Health Care Provider Taxonomy code set, which is classified as Internal Medicine, specializing in Critical Care Medicine

The NPI profile was last updated on Apr 02, 2026. Use the NPI data found here to bill health insurance companies, identify providers enrolled in Medicare and Medicaid services or other HIPAA compliant transactions. See the complete NPI profile for ABDULLAH CHAHIN below.

NPI Profile for
ABDULLAH B. CHAHIN

NPI Number
1972736890
Enumeration Date

(about 17 years ago)
Entity Type
Type-1  Individual (Male)
Legal Name
ABDULLAH B. CHAHIN
Credentials
MD
Primary location
10604 SOUTHWEST HWY STE 107
CHICAGO RIDGE, IL 60415-2717
Phone: (708) 422-0636 Fax: (708) 371-9330
4 Other location(s):
2160 S 1st Ave
Maywood, IL 60153-3328
Phone: (708) 216-9000
12251 S 80th Ave
Palos Heights, IL 60463-1290
Phone: (708) 923-5869
Fax: (708) 923-5859
11900 Southwest Hwy
Palos Park, IL 60464-1200
Phone: (708) 274-4900
Fax: (708) 274-4949
330 Borthwick Ave Ste 210
Portsmouth, NH 03801-7111
Phone: (603) 433-8733
Fax: (603) 433-8834
Mailing address
17 VIRGINIA AVE
SUITE 107
PROVIDENCE, RI 02905-4406
Phone: (401) 443-4992 Fax: (401) 784-4902
Sole Proprietor
No
Updated
Certification Date
Apr 02, 2026

Note: NPPES allows providers to attest to the accuracy of their NPI data. When a provider request any change to the NPI record, they will be able to attest to their changed NPI data, resulting in an updated certification date.

Taxonomy Code(s)

A taxonomy code is a code that describes the health care service provider's type, classification, and the area of specialization. The primary specialty for this provider is indicated as (Primary) below.

Taxonomy Classification / Specialization State License
207RC0200X
- Internal Medicine / Critical Care Medicine (Primary)		 IL 036155515
207RI0200X
- Internal Medicine / Infectious Disease		 IL 036155515
207R00000X
- Internal Medicine		 IL 036155515

The taxonomy codes are selected by the provider at the time of NPI registration. Selection of a taxonomy code does not replace any credentialing or validation process that the provider requesting the code should complete.

Endpoint

Health Information Exchange (HEI)

HEI is the mobilization of health care information electronically across organizations within a region, community or hospital system. Endpoints provide a simple and secure way for participants to send authenticated, encrypted health information directly to known, trusted recipients over the internet such as primary care physicians, specialists, hospitals, labs, etc.

Endpoint
[email protected]
Endpoint type
Direct Messaging Address
Endpoint Description
Content Type
Affiliation
N
Endpoint Location
2160 S 1ST AVE,
MAYWOOD, IL 77025-1669

Additional Information

Accepts Medicare
This provider accepts Medicare-approved amount as payment in full. The Medicare-approved amount is the total the provider can be paid. When a provider accepts the Medicare-approved amount as payment, you won't be billed for more than the Medicare deductible & coinsureance.
Medicare Ordering & Referring
Provider can:
  • Refer to Part B
  • Order Durable Medical Equipment
  • Refer to Home Health Agency
  • Order Power Mobility Devices
Affiliations
ABDULLAH CHAHIN is affiliated with the following medical group(s):
  • HOSPITAL
    • INGALLS MEMORIAL HOSPITAL
      1 INGALLS DRIVE
      HARVEY, IL 60426
    • LOYOLA UNIVERSITY MEDICAL CENTER
      2160 S 1ST AVENUE
      MAYWOOD, IL 60153
    • OSF LITTLE COMPANY OF MARY MEDICAL CENTER
      2800 W 95TH ST
      EVERGREEN PARK, IL 60805
    • PALOS COMMUNITY HOSPITAL
      12251 SOUTH 80TH AVENUE
      PALOS HEIGHTS, IL 60463

Why is my NPI data (personal information) being displayed publicly?
If you have an active NPI profile, your profile is required to be disclosed according to the FOIA and eFOIA. HIPAA also requires covered providers to share their NPI with other providers, health plans, clearinghouses and any entity that may need it for billing purposes.

How do I correct or change the NPI data displayed here?
At any time, providers can make changes to their NPI profile at NPPES. Login to NPPES to make changes online or call (800) 465-3203 for assistance. Changes made at NPPES will be reflected on this web site within a few days.

Can I hide my NPI profile from the public?
Unfortunately, No. The NPPES discloses health care provider data under the Freedom of Information Act to the public, which means anyone may request such information directly from the National Plan & Provider Enumeration System. See the complete CMS Data Dissemination Notice here.