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DR. KIM A WILLIAMS JR. M.D.
NPI 1154587426
Neurological Surgery in Hinsdale, IL

Active since August 05, 2008PECOS EnrolledAccepts Medicare Assignment
908 N ELM ST STE 202, HINSDALE, IL 60521(630) 856-8640 Get Directions Write a Review

NPPES record last updated: March 19, 2021. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Mar 19, 2021, Aug 2, 2018 (2 updates tracked since 2018).

About Dr. Kim A Williams Jr. M.d. NPPES

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

DR. KIM A WILLIAMS JR. M.D. (NPI 1154587426) is an individual neurological surgery provider in Hinsdale, Illinois, licensed in Illinois (036140284) and active in the NPI registry since August 2008. He is enrolled in Medicare PECOS, is affiliated with Spectrum Health, and is a graduate of Other (2008).

NPPES Registry Identity

NPI1154587426
Entity TypeIndividualMale
Primary Taxonomy207T00000X
Provider Legal NameDR. KIM A WILLIAMS JR.Credential: M.D.
Location Address908 N ELM ST STE 202Hinsdale, IL 60521
Mailing Address908 N Elm St Ste 202Hinsdale, IL 60521-3637 · (630) 856-8640
Phone(630) 856-8640
Sole ProprietorYes
Medical School CMSOtherGraduated 2008
Enumeration DateAugust 5, 2008
Last NPPES UpdateMarch 19, 20212 updates tracked since enumeration
NPPES CertifiedMarch 19, 2021
✔ NPI 1154587426 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNeurological SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code207T00000X
License✔ Licensed in IL · 036140284
Definition
A neurological surgeon provides the operative and non-operative management (i.e., prevention, diagnosis, evaluation, treatment, critical care, and rehabilitation) of disorders of the central, peripheral, and autonomic nervous systems, including their supporting structures and vascular supply; the evaluation and treatment of pathological processes which modify function or activity of the nervous system; and the operative and non-operative management of pain. A neurological surgeon treats patients with disorders of the nervous system; disorders of the brain, meninges, skull, and their blood supply, including the extracranial carotid and vertebral arteries; disorders of the pituitary gland; disorders of the spinal cord, meninges, and vertebral column, including those which may require treatment by spinal fusion or instrumentation; and disorders of the cranial and spinal nerves throughout their distribution.
908 N ELM ST STE 202, Hinsdale, IL 60521
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter from Meridian, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Kim A Williams Jr. M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1759504897
PECOS Enrollment IDI20230131001123
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

4

Medicare enrollment records show Kim Williams reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Community Care Network Inc
35 mi
Family Medicine
9660 WICKER AVE
St John, IN 46373
  • Reassigned Medicare billing, Indiana enrollment
  • 607 clinicians in this Medicare group
NPI 1457610487 (219) 365-7620
Carle Health Medical Group
118 mi
Internal Medicine
611 W PARK ST
Urbana, IL 61801
  • Reassigned Medicare billing, Illinois enrollment
  • Medicare enrollment name: Carle Health Care Incorporated
  • 2,516 clinicians in this Medicare group
NPI 1154653947 (217) 383-8300
Great Lakes Neurosurgical Associates, PC
144 mi
Neurological Surgery
3350 EAGLE PARK DR NE STE 102
Grand Rapids, MI 49525
  • Reassigned Medicare billing, Michigan enrollment
NPI 1366590929 (616) 454-3465
Sheridan Community Hospital
144 mi
Foot and Ankle Surgery
1525 E BELTLINE AVE NE
Grand Rapids, MI 49525
  • Reassigned Medicare billing, Michigan enrollment
  • 85 clinicians in this Medicare group
NPI 1285588442 (989) 291-6304

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

Areas of Expertise CMS Part B claims 10

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
41 services34 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
33 services33 patients
Insertion of cage or mesh device to spine bone and disc space during spine fusion 22853
Spine fusion is a procedure to join two or more vertebrae. During this process, a cage or mesh device is inserted into the spine bone and disc space. This helps to stabilize the spine, reduce pain, and improve functionality. The device acts as a bridge for new bone to grow on.
29 services14 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
23 services23 patients
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
20 services19 patients
Insertion or replacement of spinal neurostimulator generator or receiver 63685
The insertion of a spinal neurostimulator generator or receiver is a procedure to manage chronic pain. A small device is implanted under your skin, which sends mild electrical signals to your spinal cord. These signals disrupt pain signals, helping to reduce discomfort.
17 services17 patients

Hospital Affiliations CMS Care Compare 5

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Spectrum Health

Acute Care Hospitals · Grand Rapids, MI
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number230038
Location100 Michigan St NEGrand Rapids, MI 49503 · Kent County
Emergency services Birthing friendly

Mercy Health Saint Mary's

Acute Care Hospitals · Grand Rapids, MI
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number230059
Location200 Jefferson Avenue SEGrand Rapids, MI 49503 · Kent County
Emergency services Birthing friendly

Corewell Health Big Rapids Hospital

Acute Care Hospitals · Big Rapids, MI
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number230093
Location605 Oak StreetBig Rapids, MI 49307 · Mecosta County
Emergency services Birthing friendly

University Of Michigan Health - West

Acute Care Hospitals · Wyoming, MI
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number230236
Location5900 Byron Center Avenue, SWWyoming, MI 49519 · Kent County
Emergency services Birthing friendly

Sheridan Community Hospital

Critical Access Hospitals · Sheridan, MI
OwnershipVoluntary non-profit - Private
CMS Certification Number231312
Location301 N Main StSheridan, MI 48884 · Montcalm County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60521 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
$137.43 typical visit price
range $59.81 – $181.38
Typical copayment $34.35 (range $14.95 – $45.34)
Most-billed visit code 99204
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 5

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

DR. ASHWANI KUMAR GARG MD
Family Medicine
908 N ELM ST STE 202
HINSDALE, IL 60521
Dupage County (630) 861-6663
DR. STEPHANIE MAUCH DO
Family Medicine
908 N ELM ST STE 202
HINSDALE, IL 60521
Dupage County (630) 861-6663
DR. ZEINA RABI M.D.
Psychiatry & Neurology (Clinical Neurophysiology)
908 N ELM ST STE 202
HINSDALE, IL 60521
Dupage County (630) 856-8640
DR. PRACHI SHAH DO
Family Medicine
908 N ELM ST STE 202
HINSDALE, IL 60521
Dupage County (630) 323-1558
DR. JOHN LIU MD
Family Medicine
908 N ELM ST STE 202
HINSDALE, IL 60521
Dupage County (630) 861-6663

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 Kim Williams's NPI number?

The NPI number for Kim Williams is 1154587426. It was assigned to this individual provider in the NPPES registry on August 5, 2008.

Where is Kim Williams located?

Kim Williams practices at 908 N Elm St Ste 202, Hinsdale, IL 60521. The listed phone number is (630) 856-8640.

What is Kim Williams's specialty?

The primary specialty registered for this NPI is Neurological Surgery with taxonomy code 207T00000X.

Is Kim Williams enrolled in Medicare?

Yes. Kim Williams is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Kim Williams's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Kim Williams reassigns Medicare benefits to 4 organizations: Community Care Network Inc (St John, IN), Carle Health Medical Group (Urbana, IL), Great Lakes Neurosurgical Associates, PC (Grand Rapids, MI) and Sheridan Community Hospital (Grand Rapids, MI). 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 Kim Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Kim Williams accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Blue Cross Blue Shield of Michigan Mutual Insurance Company and Oscar Insurance Company and 2 other insurers list Kim Williams as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Kim Williams affiliated with any hospitals?

According to CMS data, Kim Williams is affiliated with Spectrum Health, Mercy Health Saint Mary's, Corewell Health Big Rapids Hospital, University Of Michigan Health - West and Sheridan Community Hospital.

When was this NPI record last updated?

The NPPES record for Kim Williams was last updated on March 19, 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.