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

NPPES Updated May 11, 2026
Primary practice
9200 W WISCONSIN AVE
MILWAUKEE, WI 532263522
(414) 805-3666
Mailing address
335 KRISTIN CT W
BROOKFIELD, WI 530453585

Credentials & registration

NPPES · NUCC
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

OIG LEIE Updated May 11, 2026

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

CMS Provider Utilization
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 this city , average services per provider: 98. This provider delivers 5.8× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$27
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Daiichi Sankyo Inc. 1 $26.98

By nature of payment

Education
$27

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
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

CMS Hospital Compare