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DEDICATION HEALTH LLC
NPI 1326403593
Internal Medicine in Winnetka, IL

Active since December 15, 2015CLIA Certified · 2 labs
710 OAK ST, WINNETKA, IL 60093(847) 986-6770 Get Directions Write a Review

NPPES record last updated: February 3, 2016. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Feb 3, 2016, Dec 15, 2015 (2 updates tracked since 2015).

About Dedication Health Llc NPPES

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

DEDICATION HEALTH LLC (NPI 1326403593) is a healthcare organization registered as an internal medicine in Winnetka, Illinois and active in the NPI registry since December 2015. The organization holds 2 active CLIA laboratory certificates and lists John E Croghan, Physician, as its authorized official.

NPPES Registry Identity

NPI1326403593
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameDEDICATION HEALTH LLC
Location Address710 OAK STWinnetka, IL 60093-2522
Mailing Address710 Oak StWinnetka, IL 60093-2522 · (847) 986-6770
Phone(847) 986-6770
Organization SubpartNo
Authorized OfficialJohn E CroghanPhysician · (847) 986-6770
Enumeration DateDecember 15, 2015
Last NPPES UpdateFebruary 3, 20162 updates tracked since enumeration
✔ NPI 1326403593 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
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.
710 OAK ST, Winnetka, IL 60093
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Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dedication Health Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

9

Medicare enrollment records show 9 clinicians reassign Medicare billing to Dedication Health LLC, which bills Medicare for the services they deliver. Of these, 3 practice at this address and 9 within 10 miles. They are listed nearest first.

Clinicians, nearest first (9)

Santiago Candocia, M.D.
Internal Medicine
NPI 1780764019
710 OAK ST
Winnetka, IL 60093
(847) 986-6770
✔ PECOS✔ Accepts MedicareSame address
John Croghan, M.D.
Internal Medicine
NPI 1790724060
710 OAK ST
Winnetka, IL 60093
(847) 840-1470
✔ PECOS✔ Accepts MedicareSame address
Richard Stern, M.D.
Internal Medicine
NPI 1427139765
710 OAK ST
Winnetka, IL 60093
(847) 986-6770
✔ PECOS✔ Accepts MedicareSame address
Yolandra Johnson, MD
Gastroenterology
NPI 1326030511
510 GREEN BAY RD
Kenilworth, IL 60043
(847) 251-8661
✔ PECOS1.3 mi
Jana Mechurova
Internal Medicine
NPI 1588971766
1625 SHERIDAN RD STE A
Wilmette, IL 60091
(847) 986-6770
✔ PECOS✔ Accepts Medicare1.9 mi
Anat Lansky, MD
Internal Medicine
NPI 1912040429
1625 SHERIDAN RD STE A
Wilmette, IL 60091
(847) 986-6770
✔ PECOS✔ Accepts Medicare1.9 mi
Philip Sheridan, MD
Pulmonary Disease
NPI 1487606109
2650 RIDGE AVE
Evanston, IL 60201
(847) 675-1960
✔ PECOS✔ Accepts Medicare3.6 mi
Jason Robin, MD
Cardiovascular Disease (Cardiology)
NPI 1144307729
2150 PFINGSTEN RD STE 1200
Glenview, IL 60026
(847) 869-1499
✔ PECOS✔ Accepts Medicare6.4 mi
Michael Waligora, MD
Cardiovascular Disease (Cardiology)
NPI 1699742163
2150 PFINGSTEN RD STE 1200
Glenview, IL 60026
(847) 869-8149
✔ PECOS✔ Accepts Medicare6.4 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

CLIA Laboratory Certificates CMS CLIA 2

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 Accreditation 14D2108319

Dedication Health · Winnetka, IL
Active · expires Oct 12, 2027
CLIA Number14D2108319
Laboratory TypePhysician Office
Certificate Effective DateOctober 13, 2025
Certificate Expiration DateOctober 12, 2027
Laboratory DirectorJohn E. Croghan
Laboratory Phone(847) 986-6770
Laboratory LocationDedication Health710 Oak St, Winnetka, IL 60093
CLIA data matches this NPI record on: Address Name Phone
This is a certificate that is issued to a laboratory on the basis of the laboratory's accreditation by an accreditation organization approved by CMS.

Certificate of Waiver 14D2236932

Dedication Health · Northfield, IL
Active · expires Sep 20, 2027
CLIA Number14D2236932
Laboratory TypePhysician Office
Certificate Effective DateSeptember 21, 2025
Certificate Expiration DateSeptember 20, 2027
Laboratory DirectorJohn E. Croghan
Laboratory Phone(847) 986-6770
Laboratory LocationDedication Health330 W Frontage Rd -, Northfield, IL 60093
CLIA data matches this NPI record on: Name Phone
This certificate is issued to a laboratory to perform only waived tests.

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 Dedication Health LLC's NPI number?

The NPI number for Dedication Health LLC is 1326403593. It was assigned to this organization in the NPPES registry on December 15, 2015.

Where is Dedication Health LLC located?

Dedication Health LLC is located at 710 Oak St, Winnetka, IL 60093. The listed phone number is (847) 986-6770.

What is Dedication Health LLC's specialty?

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

Is Dedication Health LLC enrolled in Medicare?

Yes. Dedication Health LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Dedication Health LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 9 clinicians in 4 Medicare specialties reassign their Medicare billing to Dedication Health LLC. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Internal Medicine (5), Cardiovascular Disease (Cardiology) (2) and Gastroenterology (1). Of these, 3 practice at this address and 9 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Dedication Health LLC hold CLIA laboratory certificates?

Yes. 2 active CLIA laboratory certificates are associated with this NPI under the federal Clinical Laboratory Improvement Amendments program. The certificates are listed in the CLIA Laboratory Certificates section above.

When was this NPI record last updated?

The NPPES record for Dedication Health LLC was last updated on February 3, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.