Doctor profile · Federal record

Dr. Cassidy Obermark, O.D.

Optometrist (CMS: Optometry) · Optometrist · Sikeston, MO

  • NPI 1841546074
  • Accepts Medicare
  • 14 yrs in practice
  • Licensed in 2 states
  • Female
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1250 N Main St
Sikeston, MO 638014827
(573) 471-1080
fax (573) 471-1810

Credentials & registration

NPPES · NUCC
NPI registered
July 2012 — 14 yrs on file
Profile last updated
August 19, 2013
Year of graduation
2012 — 14 yrs since
Specialty taxonomy
152W00000X — NUCC code
State licenses (2)
Missouri #2013021015 · Oklahoma #2743

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1841546074. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
848
Distinct HCPCS
9
Medicare allowed
$64,850
HCPCS Description Services Patients Avg allowed
92014 Established patient complete exam of visual system 172 170 $114
92012 Established patient problem focused exam of visual system 168 124 $81
99213 Established patient office or other outpatient visit, 20-29 minutes 116 88 $83
92134 Imaging of retina 111 106 $37
92250 Photography of the retina 84 84 $34
92133 Imaging of optic nerve 82 75 $33
92004 New patient complete exam of visual system 63 63 $136
92083 Exam of visual field with extended testing 27 26 $56
66984 Removal of cataract with insertion of prosthetic lens 25 20 $95

In context: peer comparison

Among 4 peers in Sikeston Optometrist, average services per provider: 79. This provider delivers 11× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$149
Transactions
7
Manufacturers
4
Payer (manufacturer) Industry Txns Amount
Alcon Vision LLC 4 $83.09
Dompe US, INC. 1 $29.52
Lkc Technologies, INC. 1 $20.31
Johnson & Johnson Vision Care, INC. 1 $16.51

By nature of payment

Food and Beverage
$149

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
80
Patients
0
Total drug cost
$45,371
Drug Type Claims Patients Total cost
Restasis (Cyclosporine) Brand 26 0 $25,574
Latanoprost Generic 24 0 $629
Lumigan (Bimatoprost) Brand 18 0 $14,176
Alphagan P (Brimonidine Tartrate) Brand 12 0 $4,992

Frequently asked questions

Auto-generated from federal data
What is Dr. Cassidy Obermark's medical specialty?
Dr. Cassidy Obermark practices Optometrist in Sikeston, MO.
Where does Dr. Cassidy Obermark practice?
Dr. Cassidy Obermark practices at 1250 N Main St, Sikeston, MO 638014827. Office phone: 5734711080.
What is Dr. Cassidy Obermark's NPI?
Dr. Cassidy Obermark's National Provider Identifier (NPI) is 1841546074, issued by NPPES.
Does Dr. Cassidy Obermark accept Medicare assignment?
Yes. Dr. Cassidy Obermark accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Cassidy Obermark commonly perform?
Top Medicare-reported procedures in 2023: Established patient complete exam of visual system (HCPCS 92014); Established patient problem focused exam of visual system (HCPCS 92012); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.