Doctor profile · Federal record

Dr. Brenda McCardle, O.D.

Optometrist (CMS: Optometry) · Mason City, IA

  • NPI 1831201102
  • Accepts Medicare
  • 30 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
4151 4Th St Sw
Mason City, IA 504017346
(641) 423-8431
fax (641) 423-8433

Credentials & registration

NPPES · NUCC
NPI registered
August 2006 — 20 yrs on file
Profile last updated
June 4, 2010
Year of graduation
1996 — 30 yrs since
Specialty taxonomy
152W00000X — NUCC code
State license (1)
Iowa #02098

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1831201102. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
478
Distinct HCPCS
5
Medicare allowed
$36,893
HCPCS Description Services Patients Avg allowed
92250 Photography of the retina 211 200 $34
99214 Established patient office or other outpatient visit, 30-39 minutes 191 187 $119
66984 Removal of cataract with insertion of prosthetic lens 42 24 $91
99203 New patient office or other outpatient visit, 30-44 minutes 20 20 $103
99213 Established patient office or other outpatient visit, 20-29 minutes 14 14 $81

In context: peer comparison

Among 2 peers in Mason City Optometrist, average services per provider: 101. This provider delivers 4.7× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
46
Patients
0
Total drug cost
$12,344
Drug Type Claims Patients Total cost
Latanoprost Generic 33 0 $525
Restasis (Cyclosporine) Brand 13 0 $11,819

Frequently asked questions

Auto-generated from federal data
What is Dr. Brenda McCardle's medical specialty?
Dr. Brenda McCardle practices Optometrist in Mason City, IA.
Where does Dr. Brenda McCardle practice?
Dr. Brenda McCardle practices at 4151 4Th St Sw, Mason City, IA 504017346. Office phone: 6414238431.
What is Dr. Brenda McCardle's NPI?
Dr. Brenda McCardle's National Provider Identifier (NPI) is 1831201102, issued by NPPES.
Does Dr. Brenda McCardle accept Medicare assignment?
Yes. Dr. Brenda McCardle accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Brenda McCardle commonly perform?
Top Medicare-reported procedures in 2023: Photography of the retina (HCPCS 92250); Established patient office or other outpatient visit (HCPCS 99214); Removal of cataract with insertion of prosthetic lens (HCPCS 66984). Source: CMS Medicare Physician & Other Practitioners file.