Doctor profile · Federal record
Dr. Leena Maramattom, M.D
Hematology & Oncology Physician (CMS: Medical Oncology) · Internal Medicine Physician · Milwaukee, WI
- NPI 1518007707
- Accepts Medicare
- MIPS 80.9 / 100 · 2023
- 27 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
9200 W Wisconsin Ave
Milwaukee, WI 532263522
(414) 805-3666 - Mailing address
-
335 Kristin CT W
Brookfield, WI 530453585
Credentials & registration
- NPI registered
- February 2007 — 19 yrs on file
- Profile last updated
- September 6, 2012
- Year of graduation
- 1999 — 27 yrs since
- Specialty taxonomy
- 207RH0003X — NUCC code
- State licenses (2)
- Wisconsin #49221-20 · Wisconsin #49221
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1518007707. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
566
Distinct HCPCS
5
Medicare allowed
$52,509
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 361 | 130 | $93 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 81 | 40 | $91 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 71 | 53 | $63 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 33 | 19 | $137 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 20 | 20 | $127 |
In context: peer comparison
Among 18 peers in Milwaukee Hematology & Oncology Physician, average services per provider: 98. This provider delivers 5.8× the peer median.Open Payments
Industry payments received
All-time total
$27
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Daiichi Sankyo INC. | 1 | $26.98 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
831
Patients
205
Total drug cost
$105,854
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Anastrozole | Generic | 249 | 68 | $7,347 |
| Tamoxifen Citrate | Generic | 88 | 25 | $3,111 |
| Hydroxyurea | Generic | 78 | 15 | $3,878 |
| Duloxetine Hcl | Generic | 53 | 14 | $751 |
| Prochlorperazine Maleate | Generic | 50 | 38 | $529 |
| Prednisone | Generic | 46 | 12 | $351 |
| Alendronate Sodium | Generic | 41 | 0 | $462 |
| Dexamethasone | Generic | 41 | 20 | $437 |
| Abiraterone Acetate | Generic | 38 | 0 | $66,427 |
| Gabapentin | Generic | 29 | 0 | $256 |
Hospital affiliations
Frequently asked questions
What is Dr. Leena Maramattom's medical specialty?
Dr. Leena Maramattom practices Hematology & Oncology Physician in Milwaukee, WI.
Where does Dr. Leena Maramattom practice?
Dr. Leena Maramattom practices at 9200 W Wisconsin Ave, Milwaukee, WI 532263522. Office phone: 4148053666.
What is Dr. Leena Maramattom's NPI?
Dr. Leena Maramattom's National Provider Identifier (NPI) is 1518007707, issued by NPPES.
Does Dr. Leena Maramattom accept Medicare assignment?
Yes. Dr. Leena Maramattom accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Leena Maramattom 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 99214); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.