Doctor profile · Federal record

Dr. Darine Kassar, M.D.

Neuromuscular Medicine (Psychiatry & Neurology) Physician (CMS: Psychiatry) · Neurology Physician · Sugar Land, TX

  • NPI 1902035686
  • Accepts Medicare
  • 20 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
16605 Southwest Fwy Ste 600
Sugar Land, TX 774793545
(713) 254-2421

Credentials & registration

NPPES · NUCC
NPI registered
July 2009 — 17 yrs on file
Profile last updated
May 1, 2023
Year of graduation
2006 — 20 yrs since
Specialty taxonomy
2084N0008X — NUCC code
State license (1)
Texas #P8922

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1902035686. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
368
Distinct HCPCS
8
Medicare allowed
$43,556
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 170 136 $122
99213 Established patient office or other outpatient visit, 20-29 minutes 59 53 $86
95886 Needle measurement of electrical activity in arm or leg muscles, complete study 38 27 $93
99204 New patient office or other outpatient visit, 45-59 minutes 38 38 $159
99203 New patient office or other outpatient visit, 30-44 minutes 22 22 $107
99215 Established patient office or other outpatient visit, 40-54 minutes 15 13 $163
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 14 14 $125
95909 Nerve conduction, 5-6 studies 12 12 $128

In context: peer comparison

Among 1 peers in this city , average services per provider: 46. This provider delivers 8.0× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$2,146
Transactions
115
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
ABBVIE INC. 67 $1,082.29
PFIZER INC. 22 $263.35
UCB, Inc. 8 $206.76
Alexion Pharmaceuticals, Inc. 4 $97.14
SI-BONE, INC. 1 $93.18
Biogen, Inc. 3 $71.52
ARGENX US, INC. 2 $41.48
Amgen Inc. 1 $34.29
JAZZ PHARMACEUTICALS INC. 1 $31.56
Neurocrine Biosciences, Inc. 1 $27.21
TG Therapeutics, Inc. 1 $24.72
Takeda Pharmaceuticals U.S.A., Inc. 1 $23.99
Merz Pharmaceuticals, LLC 1 $22.97
LivaNova USA, Inc. 1 $21.58
Novartis Pharmaceuticals Corporation 1 $20.54

By nature of payment

Food and Beverage
$2,146

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
558
Patients
143
Total drug cost
$1,464,643
Drug Type Claims Patients Total cost
Gabapentin Generic 87 42 $1,355
Radicava Ors (Edaravone) Brand 61 0 $878,398
Duloxetine Hcl Generic 48 20 $781
Prednisone Generic 45 13 $530
Mycophenolate Mofetil Generic 39 15 $5,966
Pregabalin Generic 39 15 $1,835
Gammagard Liquid (Immun Glob G(Igg)/Gly/Iga Ov50) Brand 35 0 $219,740
Memantine Hcl Generic 35 12 $2,430
Riluzole Generic 31 13 $5,017
Relyvrio (Sod Phenylbutyrat/Taurursodiol) Brand 29 0 $344,293

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Darine Kassar's medical specialty?
Dr. Darine Kassar practices Neuromuscular Medicine (Psychiatry & Neurology) Physician in Sugar Land, TX.
Where does Dr. Darine Kassar practice?
Dr. Darine Kassar practices at 16605 Southwest Fwy Ste 600, Sugar Land, TX 774793545. Office phone: 7132542421.
What is Dr. Darine Kassar's NPI?
Dr. Darine Kassar's National Provider Identifier (NPI) is 1902035686, issued by NPPES.
Does Dr. Darine Kassar accept Medicare assignment?
Yes. Dr. Darine Kassar accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Darine Kassar 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); Needle measurement of electrical activity in arm or leg muscles, complete study (HCPCS 95886). Source: CMS Medicare Physician & Other Practitioners file.