Doctor profile · Federal record
Dr. Jaroslaw Maciejewski, MD
Hematology (Internal Medicine) Physician (CMS: Hematology/Oncology) · Cleveland, OH
- NPI 1831299908
- Accepts Medicare
- 36 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
9500 Euclid Ave
Cleveland, OH 441950001
(800) 223-2273 - Mailing address
-
6000 W Creek RD, Suite 10
Independence, OH 441312139
Credentials & registration
- NPI registered
- September 2006 — 20 yrs on file
- Profile last updated
- February 5, 2008
- Year of graduation
- 1990 — 36 yrs since
- Specialty taxonomy
- 207RH0000X — NUCC code
- State license (1)
- Ohio #35080280
- Medicaid
- OH #2304410
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1831299908. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
128
Distinct HCPCS
2
Medicare allowed
$10,210
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 70 | 45 | $93 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 58 | 41 | $64 |
In context: peer comparison
Among 5 peers in Cleveland Hematology (Internal Medicine) Physician, average services per provider: 64. This provider delivers 2.0× the peer median.Open Payments
Industry payments received
All-time total
$27,111
Transactions
29
Manufacturers
6
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Novartis Pharmaceuticals Corporation | 10 | $14,305.91 | |
| Alexion Pharmaceuticals, INC. | 12 | $8,661.81 | |
| Genentech, INC. | 2 | $2,280.00 | |
| E.R. Squibb & Sons, L.L.C. | 1 | $1,500.00 | |
| Apellis Pharmaceuticals, INC. | 2 | $189.77 | |
| Sobi, INC | 2 | $173.98 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
16
Patients
0
Total drug cost
$618,653
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Empaveli (Pegcetacoplan) | Brand | 16 | 0 | $618,653 |
Frequently asked questions
What is Dr. Jaroslaw Maciejewski's medical specialty?
Dr. Jaroslaw Maciejewski practices Hematology (Internal Medicine) Physician in Cleveland, OH.
Where does Dr. Jaroslaw Maciejewski practice?
Dr. Jaroslaw Maciejewski practices at 9500 Euclid Ave, Cleveland, OH 441950001. Office phone: 8002232273.
What is Dr. Jaroslaw Maciejewski's NPI?
Dr. Jaroslaw Maciejewski's National Provider Identifier (NPI) is 1831299908, issued by NPPES.
Does Dr. Jaroslaw Maciejewski accept Medicare assignment?
Yes. Dr. Jaroslaw Maciejewski accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Jaroslaw Maciejewski 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). Source: CMS Medicare Physician & Other Practitioners file.