DR. MICHAEL THOMAS WALSH MD
NPI 1922211788
Neurological Surgery in Lake Forest, IL

Active since May 08, 2007PECOS EnrolledAccepts Medicare Assignment
94.1/100
CMS Quality Rating
1000 N WESTMORELAND RD # LEVEL3, LAKE FOREST, IL 60045(847) 535-7271(847) 535-8488 Get Directions Write a Review

NPPES record last updated: January 29, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Michael Thomas Walsh Md NPPES

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

DR. MICHAEL THOMAS WALSH MD (NPI 1922211788) is an individual neurological surgery provider in Lake Forest, Illinois, licensed in Illinois (36-123396) and active in the NPI registry since May 2007. He is enrolled in Medicare PECOS, is affiliated with Northwestern Medicine Mchenry, and is a graduate of Indiana University School Of Medicine (2001).

NPPES Registry Identity

NPI1922211788
Entity TypeIndividualMale
Primary Taxonomy207T00000X
Provider Legal NameDR. MICHAEL THOMAS WALSHCredential: MD
Location Address1000 N WESTMORELAND RD # LEVEL3Lake Forest, IL 60045-1658
Mailing Address1000 N Westmoreland Rd # Level3Lake Forest, IL 60045-1658 · (847) 535-7271 · Fax (847) 535-8488
Fax(847) 535-8488
Sole ProprietorNo
Medical School CMSIndiana University School Of MedicineGraduated 2001
Enumeration DateMay 8, 2007
Last NPPES UpdateJanuary 29, 2021
NPPES CertifiedJanuary 29, 2021
✔ NPI 1922211788 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 · 36-123396
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.
1000 N WESTMORELAND RD # LEVEL3, Lake Forest, IL 60045

Other Identifiers 1

Medicaid36-123396IL

Accepted 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. Michael Thomas Walsh Md 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 ID2860547320
PECOS Enrollment IDI20090904000242
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

3

Medicare enrollment records show Michael Walsh reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Multi-Specialty
DEPT 5777
Carol Stream, IL 60122
  • Reassigned Medicare billing, Illinois enrollment
  • 4,817 clinicians in this Medicare group
Family Medicine
5777 DEPARTMENT
Carol Stream, IL 60122
  • Reassigned Medicare billing, Illinois enrollment
  • 1,664 clinicians in this Medicare group
Neurological Surgery
1932 ALCOA HWY STE 360
Knoxville, TN 37920
  • Reassigned Medicare billing, Tennessee enrollment
  • 32 clinicians in this Medicare group

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 4

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.

Use of operating microscope 69990
An operating microscope is a device that magnifies small areas, allowing surgeons to see fine details clearly during procedures. It's often used for delicate operations like eye or nerve surgery, improving precision and outcomes.
16 services16 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
15 services15 patients
Computer-assisted procedure inside brain 61781
A computer-assisted brain procedure uses advanced technology for precise navigation within the brain. A computer creates a 3D model of your brain to help the surgeon accurately target the area needing treatment, improving safety and effectiveness.
14 services14 patients
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231
Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.
14 services12 patients

Hospital Affiliations CMS Care Compare 2

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

Northwestern Medicine Mchenry

Acute Care Hospitals · Mchenry, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number140116
Location4201 Medical Center DriveMchenry, IL 60050 · Mc Henry County
Emergency services Birthing friendly

Northwestern Lake Forest Hospital

Acute Care Hospitals · Lake Forest, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number140130
Location1000 N Westmoreland RoadLake Forest, IL 60045 · Lake County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60045 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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

94.1/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality82.59
Promoting Interoperability100
Improvement Activities40

Other Providers at the Same Location NPPES 11

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

Nurse Practitioner (Family)
1000 N WESTMORELAND RD # LEVEL3
LAKE FOREST, IL 60045
Psychiatry & Neurology (Neurology)
1000 N WESTMORELAND RD # LEVEL3
LAKE FOREST, IL 60045
Psychiatry & Neurology (Neurology)
1000 N WESTMORELAND RD # LEVEL3
LAKE FOREST, IL 60045
Psychiatry & Neurology (Clinical Neurophysiology)
1000 N WESTMORELAND RD # LEVEL3
LAKE FOREST, IL 60045
Orthopaedic Surgery
1000 N WESTMORELAND RD # LEVEL3
LAKE FOREST, IL 60045
Neurological Surgery
1000 N WESTMORELAND RD # LEVEL3
LAKE FOREST, IL 60045
Orthopaedic Surgery (Hand Surgery)
1000 N WESTMORELAND RD # LEVEL3
LAKE FOREST, IL 60045
Orthopaedic Surgery (Adult Reconstructive Orthopaedic Surgery)
1000 N WESTMORELAND RD # LEVEL3
LAKE FOREST, IL 60045

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 Michael Walsh's NPI number?

The NPI number for Michael Walsh is 1922211788. It was assigned to this individual provider in the NPPES registry on May 8, 2007.

Where is Michael Walsh located?

Michael Walsh practices at 1000 N Westmoreland Rd # Level3, Lake Forest, IL 60045. The listed phone number is (847) 535-7271.

What is Michael Walsh's specialty?

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

Is Michael Walsh enrolled in Medicare?

Yes. Michael Walsh 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 Michael Walsh's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Michael Walsh reassigns Medicare benefits to 3 organizations: Northwestern Medical Faculty Foundation (Carol Stream, IL), Central Dupage Physician Group (Carol Stream, IL) and Neurosurgical Associates, PC (Knoxville, TN). 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 Michael Walsh's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Michael Walsh accept?

Health plans from Oscar Insurance Company list Michael Walsh 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 Michael Walsh affiliated with any hospitals?

According to CMS data, Michael Walsh is affiliated with Northwestern Medicine Mchenry and Northwestern Lake Forest Hospital.

When was this NPI record last updated?

The NPPES record for Michael Walsh was last updated on January 29, 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.