Doctor profile · Federal record
Dr. Dean Tsarwhas, M.D.
Medical Oncology Physician (CMS: Hematology/Oncology) · Lake Forest, IL
- NPI 1093797987
- Accepts Medicare
- MIPS 91.3 / 100 · 2023
- 39 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
660 N Westmoreland RD, Suite 100
Lake Forest, IL 600451659
(847) 582-2134
fax (847) 535-7858
Credentials & registration
- NPI registered
- November 2005 — 21 yrs on file
- Profile last updated
- November 4, 2015
- Year of graduation
- 1987 — 39 yrs since
- Specialty taxonomy
- 207RX0202X — NUCC code
- State license (1)
- Illinois #036086008
- Medicaid
- IL #036086008
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1093797987. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
2,142
Distinct HCPCS
10
Medicare allowed
$260,781
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 1,183 | 291 | $131 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 369 | 278 | $94 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 157 | 100 | $185 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 114 | 47 | $82 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 50 | 43 | $135 | |
36415 |
Insertion of needle into vein for collection of blood sample | 45 | 28 | $8 | |
G0008 |
Administration of influenza virus vaccine | 43 | 43 | $32 | |
90662 |
Influenza vaccine split virus, preservative free | 41 | 41 | $72 | |
99443 |
Telephone medical discussion with physician, 21-30 minutes | 38 | 31 | $132 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 28 | 28 | $229 |
In context: peer comparison
Among 1 peers in Lake Forest Medical Oncology Physician, average services per provider: 153. This provider delivers 14× the peer median.Open Payments
Industry payments received
All-time total
$226
Transactions
2
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| E.R. Squibb & Sons, L.L.C. | 1 | $133.44 | |
| Tempus Ai, INC | 1 | $92.24 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,086
Patients
246
Total drug cost
$889,492
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Acyclovir | Generic | 174 | 33 | $1,995 |
| Eliquis (Apixaban) | Brand | 159 | 31 | $142,293 |
| Letrozole | Generic | 134 | 42 | $4,014 |
| Tamoxifen Citrate | Generic | 134 | 39 | $5,517 |
| Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) | Brand | 102 | 18 | $751 |
| Prednisone | Generic | 56 | 20 | $252 |
| Xarelto (Rivaroxaban) | Brand | 45 | 12 | $58,271 |
| Levothyroxine Sodium | Generic | 44 | 12 | $506 |
| Abiraterone Acetate | Generic | 40 | 0 | $113,979 |
| Revlimid (Lenalidomide) | Brand | 35 | 0 | $558,035 |
Hospital affiliations
Frequently asked questions
What is Dr. Dean Tsarwhas's medical specialty?
Dr. Dean Tsarwhas practices Medical Oncology Physician in Lake Forest, IL.
Where does Dr. Dean Tsarwhas practice?
Dr. Dean Tsarwhas practices at 660 N Westmoreland RD, Lake Forest, IL 600451659. Office phone: 8475822134.
What is Dr. Dean Tsarwhas's NPI?
Dr. Dean Tsarwhas's National Provider Identifier (NPI) is 1093797987, issued by NPPES.
Does Dr. Dean Tsarwhas accept Medicare assignment?
Yes. Dr. Dean Tsarwhas accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Dean Tsarwhas commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.