Public Medicare data rankings · District of Columbia

Top 25 Knee Replacement Surgeons in District of Columbia

1,206 verified Medicare cases Updated May 2026

Rankings reflect Medicare procedure volume, one factor among many. Volume does not measure quality of care.

How to read these rankings

Medicare data is the "tip of the iceberg." A surgeon with 100+ Medicare cases likely performs 300–400+ total surgeries a year. High numbers guarantee experience; low numbers may simply indicate a surgeon sees younger, privately insured patients.

Knee Replacement anatomy illustration
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24 surgeons
1
Also practices here via Sibley Memorial Hospital
Knee Replacement: 276 verified Medicare cases
2
Also practices here via Medstar Georgetown University Hospital
Knee Replacement: 90 verified Medicare cases
3

Gautam Siram, M.D.

Chevy Chase, MD
Also practices here via Sibley Memorial Hospital
Knee Replacement: 80 verified Medicare cases
4

Marc Connell, M.D.

Chevy Chase, MD
Also practices here via Sibley Memorial Hospital
Knee Replacement: 70 verified Medicare cases
5

Savyasachi Thakkar

Washington, DC
Knee Replacement: 67 verified Medicare cases
6

James Melvin, M.D.

Chevy Chase, MD
Also practices here via Sibley Memorial Hospital
Knee Replacement: 66 verified Medicare cases
7

Matthew Harb

Washington, DC
Knee Replacement: 55 verified Medicare cases
8

Anthony Unger

Washington, DC
Knee Replacement: 49 verified Medicare cases
9

Carey Politzer, M.D.

Bethesda, MD
Also practices here via Sibley Memorial Hospital
Knee Replacement: 47 verified Medicare cases
10

John Klimkiewicz, M.D.

Chevy Chase, MD
Also practices here via Sibley Memorial Hospital
Knee Replacement: 43 verified Medicare cases
11

Ahamefula Onyike

Washington, DC
Knee Replacement: 42 verified Medicare cases
12

Kevin Park

Washington, DC
Knee Replacement: 38 verified Medicare cases
13

Afamefuna Nduaguba

Washington, DC
Knee Replacement: 37 verified Medicare cases
14

Ryan Scully, M.D.

Chevy Chase, MD
Also practices here via Sibley Memorial Hospital
Knee Replacement: 35 verified Medicare cases
15

Kenneth Vaz

Washington, DC
Knee Replacement: 33 verified Medicare cases
16

Min Lu, M.D.

Bethesda, MD
Also practices here via Sibley Memorial Hospital
Knee Replacement: 32 verified Medicare cases
17

Angela Tomaschko, M.D.

Oakland Park, FL
Also practices here via Medstar Washington Hospital Center
Knee Replacement: 24 verified Medicare cases
18

Sandesh Rao

Washington, DC
Knee Replacement: 21 verified Medicare cases
19

Robert Sterling

Washington, DC
Knee Replacement: 21 verified Medicare cases
20

Brian Evans

Washington, DC
Knee Replacement: 20 verified Medicare cases
21

Marc Rankin

Washington, DC
Knee Replacement: 18 verified Medicare cases
22

Nirav Patel, M.D.

Bethesda, MD
Also practices here via Sibley Memorial Hospital
Knee Replacement: 17 verified Medicare cases
23

Evan Argintar

Washington, DC
Knee Replacement: 14 verified Medicare cases
24

Craig Faulks

Washington, DC
Knee Replacement: 11 verified Medicare cases

Important Disclaimer

Rankings are based solely on Medicare knee replacement procedure volume and do not reflect quality of care, patient outcomes, or procedures covered by private insurance. This data covers approximately 23% to 28% of all knee replacement procedures performed nationwide in 2024 (how this share is derived). Always consult with healthcare providers to make informed decisions about your care.