Doctor profile · Federal record
Dr. Olivia Siwoski, M.D.
Internal Medicine Physician (CMS: Internal Medicine) · Kalamazoo, MI
- NPI 1609260884
- Accepts Medicare
- MIPS 84.9 / 100 · 2023
- 11 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
601 John St
Kalamazoo, MI 490075341
(269) 341-8481 - Additional location
-
965 S Bailey Ave Ste 101
South Haven, MI 490906743
(269) 639-2777 - Mailing address
-
601 John Street, Box 39
Kalamazoo, MI 49007
Credentials & registration
- NPI registered
- March 2015 — 11 yrs on file
- Profile last updated
- December 7, 2021
- Year of graduation
- 2015 — 11 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Michigan #4301503659
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1609260884. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
443
Distinct HCPCS
5
Medicare allowed
$47,161
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 223 | 89 | $112 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 110 | 56 | $76 | |
99239 |
Hospital discharge day management, more than 30 minutes | 62 | 62 | $108 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 29 | 29 | $168 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 19 | 19 | $126 |
In context: peer comparison
Among 57 peers in this city , average services per provider: 93. This provider delivers 4.8× the peer median.Open Payments
Industry payments received
All-time total
$130
Transactions
7
Manufacturers
5
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Boehringer Ingelheim Pharmaceuticals, Inc. | 2 | $42.68 | |
| Merck Sharp & Dohme LLC | 2 | $29.46 | |
| Janssen Pharmaceuticals, Inc | 1 | $23.89 | |
| PFIZER INC. | 1 | $18.55 | |
| ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) | 1 | $15.21 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
24
Patients
11
Total drug cost
$8,386
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Eliquis (Apixaban) | Brand | 13 | 0 | $8,024 |
| Pantoprazole Sodium | Generic | 11 | 11 | $362 |
Hospital affiliations
Frequently asked questions
What is Dr. Olivia Siwoski's medical specialty?
Dr. Olivia Siwoski practices Internal Medicine Physician in Kalamazoo, MI.
Where does Dr. Olivia Siwoski practice?
Dr. Olivia Siwoski practices at 601 John St, Kalamazoo, MI 490075341. Office phone: 2693418481.
What is Dr. Olivia Siwoski's NPI?
Dr. Olivia Siwoski's National Provider Identifier (NPI) is 1609260884, issued by NPPES.
Does Dr. Olivia Siwoski accept Medicare assignment?
Yes. Dr. Olivia Siwoski accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Olivia Siwoski commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Hospital discharge day management (HCPCS 99239). Source: CMS Medicare Physician & Other Practitioners file.