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KENNETH J TOMCHIK MD
NPI 1629090972
Internal Medicine in Woodstock, IL

Active since July 24, 2006PECOS Enrolled
3707 DOTY RD STE E&F, WOODSTOCK, IL 60098(815) 338-6600(815) 337-1980 Get Directions Write a Review

NPPES record last updated: September 27, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Sep 27, 2021, Sep 3, 2020 (2 updates tracked since 2020).

About Kenneth J Tomchik Md NPPES

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

KENNETH J TOMCHIK MD (NPI 1629090972) is an individual internal medicine provider in Woodstock, Illinois, licensed in Illinois (036-072257) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1629090972
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameKENNETH J TOMCHIKCredential: MD
Location Address3707 DOTY RD STE E&FWoodstock, IL 60098-7530
Mailing Address3707 Doty Rd Ste E&fWoodstock, IL 60098-7530 · (815) 338-6600 · Fax (815) 337-1980
Phone(815) 338-6600
Fax(815) 337-1980
Sole ProprietorYes
Enumeration DateJuly 24, 2006
Last NPPES UpdateSeptember 27, 20212 updates tracked since enumeration
NPPES CertifiedSeptember 27, 2021
✔ NPI 1629090972 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 · 036-072257
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.
3707 DOTY RD STE E&F, Woodstock, IL 60098
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Other Identifiers 1

Medicaid036-072257IL

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Kenneth J Tomchik Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Kenneth Tomchik reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Rockford Health Physicians
29 mi
Multi-Specialty
8201 E RIVERSIDE BLVD
Rockford, IL 61114
  • Reassigned Medicare billing, Illinois enrollment
  • 1,375 clinicians in this Medicare group
NPI 1043242886 (608) 314-2428
Central Dupage Physician Group
34 mi
Family Medicine
5777 DEPARTMENT
Carol Stream, IL 60122
  • Reassigned Medicare billing, Illinois enrollment
  • 1,664 clinicians in this Medicare group
NPI 1033149844 (630) 933-3300

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60098 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
$127.46 typical visit price
range $54.80 – $168.44
Typical copayment $31.86 (range $13.70 – $42.11)
Most-billed visit code 99204
Established Patient
$97.25 typical visit price
range $17.16 – $136.56
Typical copayment $24.31 (range $4.29 – $34.14)
Most-billed visit code 99214
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 2

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

DR. ERIN C DAVIS-DELAY M.D.
Internal Medicine
3707 DOTY RD STE E&F
WOODSTOCK, IL 60098
McHenry County (815) 338-6600
DR. MARK W STOLAR M.D.
Internal Medicine
3707 DOTY RD STE E&F
WOODSTOCK, IL 60098
McHenry County (815) 338-6600

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 Kenneth Tomchik's NPI number?

The NPI number for Kenneth Tomchik is 1629090972. It was assigned to this individual provider in the NPPES registry on July 24, 2006.

Where is Kenneth Tomchik located?

Kenneth Tomchik practices at 3707 Doty Rd Ste E&f, Woodstock, IL 60098. The listed phone number is (815) 338-6600.

What is Kenneth Tomchik's specialty?

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

Is Kenneth Tomchik enrolled in Medicare?

Yes. Kenneth Tomchik is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Kenneth Tomchik's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Kenneth Tomchik reassigns Medicare benefits to 2 organizations: Rockford Health Physicians (Rockford, IL) and Central Dupage Physician Group (Carol Stream, IL). Each 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 Kenneth Tomchik's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Kenneth Tomchik was last updated on September 27, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.