Doctor profile · Federal record
Dr. Mark Toyama, M.D.
Surgery Physician · Chicago, IL
- NPI 1821085358
- 21 yrs on file
- Male
- No sanctions
Practice & contact
- Primary practice
-
676 N Saint Clair St, Suite 1525
Chicago, IL 606112927
(312) 255-1451
fax (312) 266-0478 - Mailing address
-
Po Box 388320
Chicago, IL 606388320
Credentials & registration
- NPI registered
- September 2005 — 21 yrs on file
- Profile last updated
- July 8, 2007
- Specialty taxonomy
- 208600000X — NUCC code
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1821085358. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
52
Distinct HCPCS
3
Medicare allowed
$6,565
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99203 |
New patient office or other outpatient visit, 30-44 minutes | 27 | 27 | $121 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 14 | 12 | $96 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 11 | 11 | $178 |
In context: peer comparison
Among 54 peers in Chicago Surgery Physician, average services per provider: 84. This provider delivers 0.6× the peer median.Open Payments
Industry payments received
All-time total
$24
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Zimmer Biomet Holdings, INC. | 1 | $23.68 |
By nature of payment
Frequently asked questions
What is Dr. Mark Toyama's medical specialty?
Dr. Mark Toyama practices Surgery Physician in Chicago, IL.
Where does Dr. Mark Toyama practice?
Dr. Mark Toyama practices at 676 N Saint Clair St, Chicago, IL 606112927. Office phone: 3122551451.
What is Dr. Mark Toyama's NPI?
Dr. Mark Toyama's National Provider Identifier (NPI) is 1821085358, issued by NPPES.
What procedures does Dr. Mark Toyama commonly perform?
Top Medicare-reported procedures in 2023: New patient office or other outpatient visit (HCPCS 99203); Established patient office or other outpatient visit (HCPCS 99213); New patient office or other outpatient visit (HCPCS 99204). Source: CMS Medicare Physician & Other Practitioners file.