DR. GEORGE KATSAMAKIS M.D.
NPI 1174502835
Psychiatry & Neurology - Neurology in Lake Barrington, IL

Q: What is George Katsamakis's NPI number?

The NPI number for George Katsamakis is 1174502835. It was assigned to this individual provider in the NPPES registry on January 11, 2006.

Q: What is George Katsamakis's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.

Q: When was this NPI record last updated?

The NPPES record for George Katsamakis was last updated on March 7, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.

Active since January 11, 2006PECOS EnrolledAccepts Medicare Assignment

22285 N PEPPER RD, SUITE 401, LAKE BARRINGTON, IL 60010(847) 882-6604(847) 882-6228 Get Directions Write a Review

NPPES record last updated: March 7, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Mar 7, 2023, Dec 29, 2021 (2 updates tracked since 2021).

On this page

About Dr. George Katsamakis M.d. NPPES

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

DR. GEORGE KATSAMAKIS M.D. (NPI 1174502835) is an individual neurology provider in Lake Barrington, Illinois, licensed in Illinois (036094580) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS, is affiliated with Northwestern Medicine Mchenry, and is a graduate of Rush Medical College Of Rush University (1994).

NPPES Registry Identity

NPI1174502835

Entity TypeIndividualMale

Primary Taxonomy2084N0400X

Provider Legal NameDR. GEORGE KATSAMAKISCredential: M.D.

Location Address22285 N PEPPER RD, SUITE 401Lake Barrington, IL 60010-2538

Mailing Address22285 N Pepper Rd, Suite 401Lake Barrington, IL 60010-2538 · (847) 882-6604 · Fax (847) 882-6228

Phone(847) 882-6604

Fax(847) 882-6228

Sole ProprietorNo

Medical School CMSRush Medical College Of Rush UniversityGraduated 1994

Enumeration DateJanuary 11, 2006

Last NPPES UpdateMarch 7, 20232 updates tracked since enumeration

NPPES CertifiedDecember 29, 2021

✔ NPI 1174502835 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · NeurologyAllopathic & Osteopathic Physicians

Taxonomy Code2084N0400X

License✔ Licensed in IL · 036094580

Definition

A Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures.

22285 N PEPPER RD, Lake Barrington, IL 60010

Open in Google Maps ↗

Other Identifiers 2

Other336058577IL · Cs

Medicaid036094580IL

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health, UnitedHealthcare.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. George Katsamakis 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 ID8426947342

PECOS Enrollment IDI20040310001406

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 Reassignment

Medicare enrollment records show George Katsamakis reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Northwest Neurology, Ltd

Same address

Neurology

22285 N PEPPER RD, SUITE 401
Lake Barrington, IL 60010

Reassigned Medicare billing, Illinois enrollment
33 clinicians in this Medicare group

NPI 1427094077 (847) 882-6604

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 13

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.

Injection, ocrelizumab, 1 mg J2350

Ocrelizumab is a medication given via injection to manage conditions like Multiple Sclerosis. It helps control symptoms by targeting specific proteins in the immune system. This service involves injecting 1 mg of Ocrelizumab.

19,800 services22 patients

Injection, gadobutrol, 0.1 ml A9585

Gadobutrol is a contrast agent used during MRI scans to help provide clearer images. It's injected into your vein before the scan. This helps doctors to see certain areas more clearly for better diagnosis. It's generally safe with few side effects.

2,225 services23 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

334 services248 patients

Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month 99490

Chronic care management services involve a healthcare professional directing clinical staff in managing your chronic conditions. This includes the first 20 minutes per month of services like medication management, care coordination, and health monitoring to help improve your health and quality of life.

237 services137 patients

Administration of chemotherapy into vein, 1 hour or less 96413

Chemotherapy is a treatment that uses drugs to destroy cancer cells. When administered into a vein, it's often through an IV. This procedure usually lasts 1 hour or less. You may feel a slight pinch as the needle is inserted, but it's generally painless.

65 services38 patients

Injection of additional new drug or substance into vein 96375

This procedure involves introducing a new medication or substance into your bloodstream via a vein. It's typically done using a small needle. The substance can help treat various conditions or assist in diagnostic procedures. It's generally safe and monitored by professionals.

51 services31 patients

Administration of chemotherapy into vein, each additional hour 96415

Chemotherapy is a treatment method that uses drugs to destroy cancer cells. The drugs are administered into a vein, usually in the arm. Each additional hour of chemotherapy allows for more of the medication to enter your bloodstream to fight against the cancer cells.

48 services28 patients

Injection, methylprednisolone sodium succinate, up to 125 mg J2930

Methylprednisolone sodium succinate is a steroid medication injected into a muscle or vein. It helps reduce inflammation and immune response. It's used for various conditions like allergies, arthritis, breathing problems, or skin diseases. It's important to follow your doctor's instructions.

31 services14 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

30 services28 patients

Mri scan of brain without contrast 70551

An MRI scan of the brain without contrast is a non-invasive imaging test. It uses a magnetic field and radio waves to create detailed images of your brain. It helps in detecting abnormalities like tumors, stroke, inflammation, or infection.

28 services27 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

27 services25 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

24 services24 patients

Mri scan of brain before and after contrast 70553

An MRI scan of the brain, both before and after contrast, helps visualize different brain structures. Initially, images are taken without a contrast agent. Then, a safe dye is injected which helps highlight certain areas, providing clearer, more detailed images.

21 services20 patients

Hospital Affiliations CMS Care Compare 5

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

Advocate Illinois Masonic Medical Center

Acute Care Hospitals · Chicago, IL

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140182

Location836 West Wellington AvenueChicago, IL 60657 · Cook County

Emergency services Birthing friendly

Northwestern Medicine Central Dupage Hospital

Acute Care Hospitals · Winfield, IL

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140242

Location25 North Winfield RoadWinfield, IL 60190 · Du Page County

Emergency services Birthing friendly

Northwest Community Hospital 1

Acute Care Hospitals · Arlington Heights, IL

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140252

Location800 W Central RoadArlington Heights, IL 60005 · Cook County

Emergency services Birthing friendly

St Alexius Medical Center

Acute Care Hospitals · Hoffman Estates, IL

4/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number140290

Location1555 N Barrington RdHoffman Estates, IL 60169 · Cook County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60010 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

$105.07 typical visit price

range $19.15 – $147.12

Typical copayment $26.26 (range $4.78 – $36.78)

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 20

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

MR. ASLAM MOHAMMED KHAJA M.D.

Psychiatry & Neurology (Vascular Neurology)

22285 N PEPPER RD, SUITE 401
LAKE BARRINGTON, IL 60010

Cook County (847) 882-6604

CHAD C SPANGLER M.D.

Internal Medicine (Gastroenterology)

22285 N PEPPER RD, SUITE #311
LAKE BARRINGTON, IL 60010

Cook County (847) 382-4410

ANDREANO CHIROPRACTIC INC

Chiropractor (Nutrition)

22285 N PEPPER RD, SUITE210
LAKE BARRINGTON, IL 60010

Cook County (847) 713-2500

DR. BRIAN M KEUER MD

Urology

22285 N PEPPER RD, #201
LAKE BARRINGTON, IL 60010

Cook County (847) 382-5080

ASPEN ANESTHESIA, PC

Nurse Anesthetist, Certified Registered

22285 N PEPPER RD
LAKE BARRINGTON, IL 60010

Cook County (630) 472-8822

DR. DAVID E GOLDRATH M.D.

Urology

22285 N PEPPER RD, SUITE 201
LAKE BARRINGTON, IL 60010

Cook County (847) 382-5080

DR. BARRY H. BIKSHORN M.D.

Psychiatry & Neurology (Neurology)

22285 N PEPPER RD, SUITE 401
LAKE BARRINGTON, IL 60010

Cook County (847) 882-6604

AHMER ALI M.D.

Psychiatry & Neurology (Sleep Medicine)

22285 N PEPPER RD, SUITE 401
LAKE BARRINGTON, IL 60010

Cook County (847) 882-6604

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 George Katsamakis's NPI number?

The NPI number for George Katsamakis is 1174502835. It was assigned to this individual provider in the NPPES registry on January 11, 2006.

Where is George Katsamakis located?

George Katsamakis practices at 22285 N Pepper Rd Suite 401, Lake Barrington, IL 60010. The listed phone number is (847) 882-6604.

What is George Katsamakis's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.

Is George Katsamakis enrolled in Medicare?

Yes. George Katsamakis 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 organization bills Medicare for George Katsamakis's services?

According to the CMS Revalidation Reassignment List (October 2026 release), George Katsamakis reassigns Medicare benefits to Northwest Neurology, Ltd (Lake Barrington, IL). The 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 George Katsamakis's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does George Katsamakis accept?

Health plans from Oscar Health and UnitedHealthcare list George Katsamakis 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 George Katsamakis affiliated with any hospitals?

According to CMS data, George Katsamakis is affiliated with Northwestern Medicine Mchenry, Advocate Illinois Masonic Medical Center, Northwestern Medicine Central Dupage Hospital, Northwest Community Hospital 1 and St Alexius Medical Center.

When was this NPI record last updated?

The NPPES record for George Katsamakis was last updated on March 7, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.