Dr. Catherine Merna, MD
- Part D claims, 2024
- 307
- Hospital affiliations
- 4
- Industry payments
- $341
- Medical groups
- 2
- State license
- 1
- Practice address
- 101 Tower Rd, North Sioux City, SD 57049
- Practice phone
- Call (605) 217-4320
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Ear Nose and Throat Consultants and Hearing Services PLC
North Sioux City, South Dakota
Find Dr. Merna's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Catherine Merna is an otolaryngologist in North Sioux City, South Dakota
Dr. Merna practices at Ear Nose and Throat Consultants and Hearing Services PLC in North Sioux City, South Dakota.
Dr. Merna's NPI, 1497281828, was assigned on May 4, 2017. Dr. Merna holds South Dakota license 17065.
- NPI
- 1497281828NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6204267388
- NPI enumeration date
- May 4, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (605) 217-4320
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Catherine Merna practices at Ear Nose and Throat Consultants and Hearing Services PLC in North Sioux City, South Dakota
Dr. Merna's primary practice is Ear Nose and Throat Consultants and Hearing Services PLC, at 101 Tower Rd, North Sioux City, SD 57049 in Union County. The practice phone is (605) 217-4320.
- Ear Nose and Throat Consultants and Hearing Services PLC101 Tower Rd, North Sioux City, SD 57049 · Union CountyPhone(605) 217-4320
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Catherine Merna is affiliated with 6 sites of care and 2 medical groups
Dr. Merna's primary practice is Ear Nose and Throat Consultants and Hearing Services PLC in North Sioux City, South Dakota. Dr. Merna is also affiliated with UnityPoint Health - St. Luke's. The medical group on file is Floyd Valley Healthcare. Dmand AI also links Dr. Merna to 3 more hospitals, 1 group practice or clinic and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Catherine Merna's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Merna practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ear Nose and Throat Consultants and Hearing Services PLC | Available with a free account |
| +5 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Catherine Merna is one of 46 otolaryngologists in South Dakota
Otolaryngology is Dr. Merna's primary specialty in the NPI Registry, under taxonomy code 207Y00000X. Dr. Merna is licensed in South Dakota.
Specialties and state licenses
- Otolaryngology, South DakotaPrimary
Otolaryngologists near Dr. Merna
Counts of otolaryngologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Catherine Merna's patients have a median age of 39
Across all payers, Dmand AI patient panel data puts Dr. Merna's median patient age at 39, with 57% women.
Dr. Merna's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 39
Patient panel by sex, all payers
- Women57%
- Men43%
Source: Dmand AI Patient Panel Data
Dr. Catherine Merna wrote 307 Medicare Part D claims in 2024
In 2024, Dr. Merna wrote 307 Medicare Part D claims for 132 patients. 97% of them were for generic drugs. CMS names the drug for 194 of them, across 5 drugs with 11 or more claims each, at $5,273 in total drug cost.
Dr. Merna's Part D claims by kind of drug, 2024
- Generic298 claims97%
- Brand-name and other9 claims3%
Dr. Merna's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Merna's Part D claims, 2024
- Opioids10%30 of 307 claims
- Antibiotics12%37 of 307 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Catherine Merna takes part in Medicare
Dr. Merna accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Spinal fusion: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Catherine Merna received $341 in industry payments from 2024 to 2025
CMS Open Payments shows 9 general payments to Dr. Merna from 7 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Stryker Corporation paid the most, $133.
General payments to Dr. Merna by program year, 2024 to 2025
Companies that paid Dr. Merna the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Catherine Merna's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Catherine Merna
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Catherine Merna's NPI number?
Dr. Catherine Merna's NPI number is 1497281828. It was assigned on May 4, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. Catherine Merna?
Dr. Catherine Merna is an otolaryngologist in North Sioux City, South Dakota. The primary specialty in the NPI Registry is Otolaryngology Physician (taxonomy code 207Y00000X).
Where does Dr. Catherine Merna practice?
Dr. Merna practices at 101 Tower Rd, North Sioux City, SD 57049. Dr. Merna's primary practice is Ear Nose and Throat Consultants and Hearing Services PLC in North Sioux City, South Dakota. Dmand AI also links Dr. Merna to 3 hospitals, 1 group practice or clinic and 1 medical group.
What is Dr. Catherine Merna's office phone number?
The practice phone on file for Dr. Merna is (605) 217-4320.
What is Dr. Catherine Merna's medical license number?
Dr. Merna holds South Dakota license 17065.
Which hospitals is Dr. Catherine Merna affiliated with?
Dr. Merna is affiliated with UnityPoint Health - St. Luke's. Dmand AI links Dr. Merna to 3 more hospitals.
What medical group is Dr. Catherine Merna part of?
Dr. Merna is linked to Floyd Valley Healthcare. Dmand AI links Dr. Merna to 1 more medical group.
Does Dr. Catherine Merna accept Medicare?
Yes. CMS lists Dr. Merna as accepting Medicare assignment.
What drugs does Dr. Catherine Merna prescribe most?
In 2024 Medicare Part D data, Dr. Merna's most prescribed drugs by claims were Azelastine HCl, Ipratropium Bromide and Hydrocodone-Acetaminophen.
Has Dr. Catherine Merna received payments from drug or device companies?
CMS Open Payments shows $341 in general payments to Dr. Merna from 7 companies from 2024 to 2025. The largest total came from Stryker Corporation.
How long has Dr. Catherine Merna been practicing?
Dr. Merna graduated from medical school in 2017, 9 years ago.
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