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DR. DEAN G TSARWHAS M.D.
NPI 1093797987
Internal Medicine - Medical Oncology in Lake Forest, IL

Active since November 16, 2005PECOS EnrolledAccepts Medicare Assignment
94.1/100
CMS Quality Rating
660 N WESTMORELAND RD, SUITE 100, LAKE FOREST, IL 60045(847) 582-2134(847) 535-7858 Get Directions Write a Review

NPPES record last updated: November 4, 2015. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Dean G Tsarwhas M.d. NPPES

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

DR. DEAN G TSARWHAS M.D. (NPI 1093797987) is an individual medical oncology provider in Lake Forest, Illinois, licensed in Illinois (036086008) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS, is affiliated with Northwestern Medicine Mchenry, and is a graduate of Northeastern Ohio University College Of Medicine (1987).

NPPES Registry Identity

NPI1093797987
Entity TypeIndividualMale
Primary Taxonomy207RX0202X
Provider Legal NameDR. DEAN G TSARWHASCredential: M.D.
Location Address660 N WESTMORELAND RD, SUITE 100Lake Forest, IL 60045-1659
Mailing Address660 N Westmoreland Rd, Suite 100Lake Forest, IL 60045-1659 · (847) 582-2134 · Fax (847) 535-7858
Phone(847) 582-2134
Fax(847) 535-7858
Sole ProprietorNo
Medical School CMSNortheastern Ohio University College Of MedicineGraduated 1987
Enumeration DateNovember 16, 2005
Last NPPES UpdateNovember 4, 2015
✔ NPI 1093797987 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Medical OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RX0202X
License✔ Licensed in IL · 036086008
Definition
An internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on and administers therapy for these malignancies as well as consults with surgeons and radiotherapists on other treatments for cancer.
660 N WESTMORELAND RD, Lake Forest, IL 60045
Open in Google Maps ↗

Other Identifiers 5

Medicare PINL25869IL
Medicare ID-Type Unspecified110079140IL · Railroad Medicare
Medicaid036086008IL
Medicare PINL98995IL
Medicare UPINE86721IL

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Dean G Tsarwhas 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 ID5496796682
PECOS Enrollment IDI20100605000022
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.

Areas of Expertise CMS Part B claims 9

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 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.
917 services256 patients
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.
295 services225 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.
94 services58 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.
74 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.
32 services21 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
24 services23 patients

Hospital Affiliations CMS Care Compare 4

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

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

Northwestern Memorial Hospital

Acute Care Hospitals · Chicago, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140281
Location251 E Huron StChicago, IL 60611 · Cook 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
$181.38 typical visit price
range $59.81 – $181.38
Typical copayment $45.34 (range $14.95 – $45.34)
Most-billed visit code 99205
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.

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

Referred Medical Equipment & Supplies CMS DME claims 4

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Capecitabine, oral, 150 mg J8520
Treatment-Treatment - Miscellaneous · category RX029N
1 supplier18 claims1,008 services$0.32 avg. paid by Medicare
Capecitabine, oral, 500 mg J8521
Treatment-Treatment - Miscellaneous · category RX029N
1 supplier58 claims4,473 services$0.70 avg. paid by Medicare
Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for the first prescription in a 30-day period Q0511
Treatment-Chemotherapy · category RH012N
2 suppliers44 claims44 services$18.97 avg. paid by Medicare
Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for a subsequent prescription in a 30-day period Q0512
Treatment-Chemotherapy · category RH012N
2 suppliers31 claims36 services$12.68 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

DR. JOHN CHONGWON LEE M.D.
Pathology (Anatomic Pathology & Clinical Pathology)
660 N WESTMORELAND RD
LAKE FOREST, IL 60045
Lake County (847) 535-6217
ROBERT J HARTMAN MD SC
Obstetrics & Gynecology
660 N WESTMORELAND RD, SUITE 302
LAKE FOREST, IL 60045
Lake County (847) 615-2229
DR. VIKRAM KANAKAYYA DEVISETTY M.D., M.B.A., M.P.H.
Hospitalist
660 N WESTMORELAND RD
LAKE FOREST, IL 60045
Lake County (847) 234-5600
ARISTEIDIE DIVERIS
Anesthesiology
660 N WESTMORELAND RD
LAKE FOREST, IL 60045
Lake County (847) 535-6100
MRS. MADONNA NMI STOIOFF M.A.
Audiologist
660 N WESTMORELAND RD
LAKE FOREST, IL 60045
Lake County (846) 535-6114
MS. KAITLIN E MASTALERZ PA-C
Physician Assistant
660 N WESTMORELAND RD
LAKE FOREST, IL 60045
Lake County (847) 234-5600
MRS. AMY LOUISE BARNARD APN
Clinical Nurse Specialist (Critical Care Medicine)
660 N WESTMORELAND RD
LAKE FOREST, IL 60045
Lake County (847) 535-6375
NORTHEAST RADIOLOGY ASSOCIATES, S.C.
Clinic/Center (Radiology)
660 N WESTMORELAND RD, RADIOLOGY DEPARTMENT
LAKE FOREST, IL 60045
Lake County (847) 535-6313

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 Dean Tsarwhas's NPI number?

The NPI number for Dean Tsarwhas is 1093797987. It was assigned to this individual provider in the NPPES registry on November 16, 2005.

Where is Dean Tsarwhas located?

Dean Tsarwhas practices at 660 N Westmoreland Rd Suite 100, Lake Forest, IL 60045. The listed phone number is (847) 582-2134.

What is Dean Tsarwhas's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.

Is Dean Tsarwhas enrolled in Medicare?

Yes. Dean Tsarwhas 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.

Is Dean Tsarwhas affiliated with any hospitals?

According to CMS data, Dean Tsarwhas is affiliated with Northwestern Medicine Mchenry, Northwestern Lake Forest Hospital, Northwestern Medicine Central Dupage Hospital and Northwestern Memorial Hospital.

When was this NPI record last updated?

The NPPES record for Dean Tsarwhas was last updated on November 4, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.