1. Home
  2. Directory
  3. Illinois
  4. Chicago
  5. Internal Medicine
  6. NPI Profile

MARGARET I. DAUPHIN-VAN DYK M.D., S.C.
NPI 1205019205
Internal Medicine in Chicago, IL

Active since December 12, 2007CLIA 14D1036173 · Waiver
2800 N SHERIDAN RD STE 406, CHICAGO, IL 60657(312) 201-0044(773) 697-4628 Get Directions Write a Review

NPPES record last updated: August 31, 2022. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Margaret I. Dauphin-van Dyk M.d., S.c. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARGARET I. DAUPHIN-VAN DYK M.D., S.C. (NPI 1205019205) is a healthcare organization registered as an internal medicine in Chicago, Illinois and active in the NPI registry since December 2007. The organization holds a CLIA Waiver certificate valid through June 8, 2027 and lists Margaret I Dauphin-van Dyk, Doctor/owner Of Practice, as its authorized official.

NPPES Registry Identity

NPI1205019205
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameMARGARET I. DAUPHIN-VAN DYK M.D., S.C.
Location Address2800 N SHERIDAN RD STE 406Chicago, IL 60657-6158
Mailing Address2800 N Sheridan Rd Ste 406Chicago, IL 60657-6158 · (312) 201-0044 · Fax (773) 697-4628
Phone(312) 201-0044
Fax(773) 697-4628
Organization SubpartNo
Authorized OfficialMargaret I Dauphin-van DykDoctor/owner Of Practice · (312) 201-0044
Enumeration DateDecember 12, 2007
Last NPPES UpdateAugust 31, 2022
NPPES CertifiedAugust 31, 2022
✔ NPI 1205019205 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in IL · 036059705
Definition
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.
2800 N SHERIDAN RD STE 406, Chicago, IL 60657
Open in Google Maps ↗

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 14D1036173

Margaret I Dauphin-Vandyk M D, S C · Chicago, IL
Active · expires Jun 8, 2027
CLIA Number14D1036173
Laboratory TypePhysician Office
Certificate Effective DateJune 9, 2025
Certificate Expiration DateJune 8, 2027
Laboratory DirectorMargaret I. Dauphin Vandyk
Laboratory Phone(312) 201-0044
Laboratory LocationMargaret I Dauphin-Vandyk M D, S C2800 N Sheridan Rd - Ste 406, Chicago, IL 60657
CLIA data matches this NPI record on: Address Phone
This certificate is issued to a laboratory to perform only waived tests.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MRS. MARGARET ISELY DAUPHIN-VAN DYK M.D.
Specialist
2800 N SHERIDAN RD STE 406
CHICAGO, IL 60657
Cook County (312) 201-0044

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Margaret I. Dauphin-Van Dyk M.D., S.C.'s NPI number?

The NPI number for Margaret I. Dauphin-Van Dyk M.D., S.C. is 1205019205. It was assigned to this organization in the NPPES registry on December 12, 2007.

Where is Margaret I. Dauphin-Van Dyk M.D., S.C. located?

Margaret I. Dauphin-Van Dyk M.D., S.C. is located at 2800 N Sheridan Rd Ste 406, Chicago, IL 60657. The listed phone number is (312) 201-0044.

What is Margaret I. Dauphin-Van Dyk M.D., S.C.'s specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Does Margaret I. Dauphin-Van Dyk M.D., S.C. hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 14D1036173) is associated with this NPI, valid through June 8, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Margaret I. Dauphin-Van Dyk M.D., S.C. was last updated on August 31, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.