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DEERFIELD MEDICAL ASSOCIATES,S.C.
NPI 1881620151
Internal Medicine in Deerfield, IL

Active since June 25, 2006CLIA 14D0412128 · Microscopy
720 OSTERMAN AVE, SUITE 103, DEERFIELD, IL 60015(847) 945-3030(847) 945-3033 Get Directions Write a Review

NPPES record last updated: March 28, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Deerfield Medical Associates,s.c. NPPES

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

DEERFIELD MEDICAL ASSOCIATES,S.C. (NPI 1881620151) is a healthcare organization registered as an internal medicine in Deerfield, Illinois and active in the NPI registry since June 2006. The organization holds a CLIA Microscopy certificate valid through December 22, 2027 and lists John J Stavrakos, President, as its authorized official.

NPPES Registry Identity

NPI1881620151
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameDEERFIELD MEDICAL ASSOCIATES,S.C.
Location Address720 OSTERMAN AVE, SUITE 103Deerfield, IL 60015-4471
Mailing Address720 Osterman Ave, Suite 103Deerfield, IL 60015-4471 · (847) 945-3030 · Fax (847) 945-3033
Phone(847) 945-3030
Fax(847) 945-3033
Organization SubpartNo
Authorized OfficialJohn J StavrakosPresident · (847) 945-3030
Enumeration DateJune 25, 2006
Last NPPES UpdateMarch 28, 2022
NPPES CertifiedMarch 28, 2022
✔ NPI 1881620151 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 · 042000410
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.
720 OSTERMAN AVE, Deerfield, IL 60015
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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

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Deerfield Medical Associates,s.c. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

2

Medicare enrollment records show 2 clinicians reassign Medicare billing to Deerfield Medical Associates,s.C., which bills Medicare for the services they deliver. Of these, 2 practice at this address. They are listed nearest first.

Clinicians, nearest first (2)

John Stavrakos, M.D.
Internal Medicine
NPI 1215966684
720 OSTERMAN AVE SUITE 103
Deerfield, IL 60015
(847) 945-3030
✔ PECOS✔ Accepts MedicareSame address
Victoria Amesbury, MD
Internal Medicine
NPI 1982763926
720 OSTERMAN AVE SUITE 103
Deerfield, IL 60015
(847) 945-3030
✔ PECOS✔ Accepts MedicareSame address

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

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 for Provider-Performed Microscopy Procedures (PPMP) 14D0412128

Deerfield Medical Associates Sc · Deerfield, IL
Active · expires Dec 22, 2027
CLIA Number14D0412128
Laboratory TypePhysician Office
Certificate Effective DateDecember 23, 2025
Certificate Expiration DateDecember 22, 2027
Laboratory DirectorJohn J. Stavrakos MD
Laboratory Phone(847) 945-3335
Laboratory LocationDeerfield Medical Associates Sc720 Osterman Ave, Ste 103, Deerfield, IL 60015
CLIA data matches this NPI record on: Address
This certificate is issued to a laboratory in which a physician, midlevel practitioner or dentist performs no tests other than the microscopy procedures. This certificate permits the laboratory to also perform 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 Deerfield Medical Associates,s.C.'s NPI number?

The NPI number for Deerfield Medical Associates,s.C. is 1881620151. It was assigned to this organization in the NPPES registry on June 25, 2006.

Where is Deerfield Medical Associates,s.C. located?

Deerfield Medical Associates,s.C. is located at 720 Osterman Ave Suite 103, Deerfield, IL 60015. The listed phone number is (847) 945-3030.

What is Deerfield Medical Associates,s.C.'s specialty?

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

Is Deerfield Medical Associates,s.C. enrolled in Medicare?

Yes. Deerfield Medical Associates,s.C. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Deerfield Medical Associates,s.C.?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians, all in Internal Medicine, reassign their Medicare billing to Deerfield Medical Associates,s.C.. 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. Of these, 2 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Deerfield Medical Associates,s.C. hold a CLIA laboratory certificate?

Yes. A Certificate for Provider-Performed Microscopy Procedures (PPMP) (number 14D0412128) is associated with this NPI, valid through December 22, 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 Deerfield Medical Associates,s.C. was last updated on March 28, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.