1. Home
  2. Directory
  3. Illinois
  4. Geneva
  5. Orthopaedic Surgery
  6. NPI Profile

DR. MERLE JOHN DENKER M.D.
NPI 1023211679
Orthopaedic Surgery in Geneva, IL

Active since June 08, 2007Opted out of Medicare · through Jul 18, 2028
2525 KANEVILLE RD, GENEVA, IL 60134(630) 584-1400(630) 584-1733 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: September 13, 2026.

About Dr. Merle John Denker M.d. NPPES

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

DR. MERLE JOHN DENKER M.D. (NPI 1023211679) is an individual orthopaedic surgery provider in Geneva, Illinois and active in the NPI registry since June 2007. He has opted out of Medicare through July 18, 2028 and remains eligible to order and refer.

NPPES Registry Identity

NPI1023211679
Entity TypeIndividualMale
Primary Taxonomy207X00000X
Provider Legal NameDR. MERLE JOHN DENKERCredential: M.D.
Location Address2525 KANEVILLE RDGeneva, IL 60134-2578
Mailing Address2525 Kaneville RdGeneva, IL 60134-2578 · (630) 584-1400 · Fax (630) 584-1733
Phone(630) 584-1400
Fax(630) 584-1733
Sole ProprietorNo
Enumeration DateJune 8, 2007
Last NPPES UpdateJuly 8, 2007
✔ NPI 1023211679 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOrthopaedic SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code207X00000X
Definition
An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.
2525 KANEVILLE RD, Geneva, IL 60134
Open in Google Maps ↗

Other Identifiers 2

Medicare ID-Type Unspecified753210IL
Medicare UPINC43347IL

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Dr. Merle John Denker M.d. has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from July 18, 2016 through July 18, 2028.

Opt-Out Effective DateJuly 18, 2016
Opt-Out In Effect ThroughJuly 18, 2028Opt-out affidavits renew automatically every two years unless cancelled
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60134 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$93.02 typical visit price
range $59.81 – $181.38
Typical copayment $23.25 (range $14.95 – $45.34)
Most-billed visit code 99203
Established Patient
$74.38 typical visit price
range $19.15 – $147.12
Typical copayment $18.59 (range $4.78 – $36.78)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

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

MRS. KAREN JOYCE FAHEY MSN,APN,ANP-BC,CORLN
Nurse Practitioner (Adult Health)
2525 KANEVILLE RD
GENEVA, IL 60134
Kane County (630) 584-1400
ERIKA SMITH OT
Occupational Therapist
2525 KANEVILLE RD
GENEVA, IL 60134
Kane County (630) 584-1411
KATHERINE VAN LEEUWEN OT
Occupational Therapist (Hand)
2525 KANEVILLE RD
GENEVA, IL 60134
Kane County (630) 584-1411
JESSICA J CLARK PA C
Physician Assistant
2525 KANEVILLE RD, FOX VALLEY ORTHOPAEDIC INSTITUTE
GENEVA, IL 60134
Kane County (630) 584-1400
NICHOLAS ROBERT PAGANI MD
Orthopaedic Surgery (Adult Reconstructive Orthopaedic Surgery)
2525 KANEVILLE RD
GENEVA, IL 60134
Kane County (630) 584-1400
FOX VALLEY ORTHOPAEDIC ASSOCIATES, PLLC
Clinic/Center (Ambulatory Surgical)
2525 KANEVILLE RD
GENEVA, IL 60134
Kane County (630) 584-1400
KIMBERLY SCHAUMBURG PT
Physical Therapist
2525 KANEVILLE RD
GENEVA, IL 60134
Kane County (630) 584-1411
TIMOTHY S PETSCHE M.D.
Orthopaedic Surgery (Sports Medicine)
2525 KANEVILLE RD
GENEVA, IL 60134
Kane County (630) 584-1400

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 Merle Denker's NPI number?

The NPI number for Merle Denker is 1023211679. It was assigned to this individual provider in the NPPES registry on June 8, 2007.

Where is Merle Denker located?

Merle Denker practices at 2525 Kaneville Rd, Geneva, IL 60134. The listed phone number is (630) 584-1400.

What is Merle Denker's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.

Is Merle Denker enrolled in Medicare?

No. Merle Denker has opted out of Medicare through July 18, 2028. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

When was this NPI record last updated?

The NPPES record for Merle Denker was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.