Dr. Catherine Koper, MD
- Medicare services, 2024
- 1,952
- Medicare patients, 2024
- 309
- Part D claims, 2024
- 1,232
- Hospital affiliations
- 1
- Industry payments
- $1,832
- Practice address
- One Hoag Drive, Newport Beach, CA 92663
- Practice phone
- Call (949) 764-4624
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Koper'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 Koper is an internist in Newport Beach, California
Dr. Koper practices at Hoag Hospital Newport Beach in Newport Beach, California, part of Hoag Memorial Hospital Presbyterian.
Dr. Koper's NPI, 1245466929, was assigned on June 8, 2009. Dr. Koper graduated from University of Medicine Sci In Poznan, Faculty Ii in 2009. Dr. Koper holds California license A13199.
- NPI
- 1245466929NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8820219462
- NPI enumeration date
- June 8, 2009
- NPI status
- Active
- Offers telehealth
- Yes
- Practice phone
- (949) 764-4624
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 40
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Catherine Koper practices at 2 locations in Newport Beach, California
Dr. Koper's primary practice is Hoag Hospital Newport Beach, at One Hoag Drive, Newport Beach, CA 92663 in Orange County. The practice phone is (949) 764-4624. Dr. Koper also practices at Hoag Hospital Newport Beach, 1 Hoag Dr, Newport Beach, CA 92663.
- Hoag Hospital Newport BeachPrimaryOne Hoag Drive, Newport Beach, CA 92663 · Orange CountyPhone(949) 764-4624
- Hoag Hospital Newport Beach1 Hoag Dr, Newport Beach, CA 92663 · Orange CountyPhone(949) 764-4624
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. Catherine Koper is affiliated with 3 sites of care
Dr. Koper's primary practice is Hoag Hospital Newport Beach in Newport Beach, California, part of Hoag Memorial Hospital Presbyterian. Dmand AI also links Dr. Koper to 1 physician office and 1 home health agency, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Catherine Koper's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Koper practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Hoag Hospital Newport Beach | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Hoag Memorial Hospital Presbyterian and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Catherine Koper is one of 16,751 internists in California
Internal medicine is Dr. Koper's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dmand AI has Dr. Koper's licenses on file in 3 states: California, New Jersey and Hawaii.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
- New Jersey license
- Hawaii license
Clinical focus
Dmand AI lists acid reflux, acute sinusitis, acute skin infection, ankle or foot injury, asthma, chronic diabetes, chronic hypertension and chronic obstructive pulmonary disease (COPD) among the conditions Dr. Koper treats.
Internists near Dr. Koper
Counts of internists 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 Koper billed Medicare for 1,952 services in 2024
CMS data shows 1,952 Medicare services from Dr. Koper across 5 procedure codes in 2024, for 309 Medicare patients. Medicare paid $179,726 for them.
Dr. Koper's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2,2112024: 1,95212%
Where Dr. Koper's Medicare services took place, 2024
- In an office69736%
- In a facility1,25564%
Dr. Koper compared with the California median for internists, 2024
- Dr. Koper
- California median
- Medicare services
- 1,952vs 3615.4 times
- Medicare patients
- 309vs 1512.0 times
- Part D claims
- 1,089vs 4212.6 times
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Koper's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Koper?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Koper and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Catherine Koper treated 309 Medicare patients in 2024, average age 78
CMS counts 309 Medicare patients who saw Dr. Koper in 2024. The largest group is 75 to 84, with 119 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 13% are also on Medicaid. Their average risk score is 2.90, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Koper's median patient age at 67, with 49% women.
Dr. Koper's Medicare patients by age, 2024
Dr. Koper's Medicare patients by sex, 2024
- Women16353%
- Men14647%
Chronic conditions among Dr. Koper's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis60%
- Ischemic heart disease48%
- Chronic kidney disease47%
- Atrial fibrillation41%
- Diabetes39%
- Heart failure38%
Share of Medicare patients with each condition. A patient can have several.
Dr. Koper's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women49%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Catherine Koper wrote 1,232 Medicare Part D claims in 2024
In 2024, Dr. Koper wrote 1,232 Medicare Part D claims for 205 patients. 91% of them were for generic drugs. CMS names the drug for 1,089 of them, across 22 drugs with 11 or more claims each, at $376,591 in total drug cost. In 2023, CMS named 956 claims across 22 drugs.
Dr. Koper's Part D claims by kind of drug, 2024
- Generic1,118 claims91%
- Brand-name114 claims9%
Dr. Koper'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. Koper's Part D claims, 2024
- Antibiotics83%1,028 of 1,232 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 9562024: 1,08914%
Drugs named by CMS: 22 in 2024, 22 in 2023.
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
Dr. Catherine Koper offers telehealth to Medicare patients
CMS lists Dr. Koper as offering telehealth.
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Catherine Koper received $1,832 in industry payments from 2016 to 2025
CMS Open Payments shows 46 general payments to Dr. Koper from 11 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 99% of the total. Gilead Sciences, Inc. paid the most, $1,098.
General payments to Dr. Koper by program year, 2016 to 2025
General payments to Dr. Koper by kind, 2016 to 2025
- Food and beverage$1,82199%
- Education$111%
Companies that paid Dr. Koper the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Catherine Koper graduated from University of Medicine Sci In Poznan, Faculty Ii
Dr. Koper graduated from University of Medicine Sci In Poznan, Faculty Ii in 2009.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. Catherine Koper accepts plans from 8 insurance carriers
Dr. Koper is in network with 8 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- CMS Medicare
- Humana
- Molina
Plan types Dr. Koper accepts, by number of carriers
- Medicare7
- PPO5
- HMO3
- POS2
- EPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Catherine Koper'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 Affiliation DataDmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| 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 Koper
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 Koper's NPI number?
Dr. Catherine Koper's NPI number is 1245466929. It was assigned on June 8, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. Catherine Koper?
Dr. Catherine Koper is an internist in Newport Beach, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Catherine Koper practice?
Dr. Koper practices at One Hoag Drive, Newport Beach, CA 92663. Dr. Koper also practices at 1 Hoag Dr, Newport Beach, CA 92663. Dr. Koper's primary practice is Hoag Hospital Newport Beach in Newport Beach, California, part of Hoag Memorial Hospital Presbyterian. Dmand AI also links Dr. Koper to 1 physician office and 1 home health agency.
What is Dr. Catherine Koper's office phone number?
The practice phone on file for Dr. Koper is (949) 764-4624.
What is Dr. Catherine Koper's medical license number?
Dr. Koper holds California license A13199, one of the licenses on file in 3 states.
Which states has Dr. Catherine Koper been licensed in?
Dmand AI has state licenses on file for Dr. Koper in California (2014 to 2026), New Jersey (2013 to 2017) and Hawaii (2014 to 2016).
Which hospitals is Dr. Catherine Koper affiliated with?
Dr. Koper practices at Hoag Hospital Newport Beach in Newport Beach, California.
Does Dr. Catherine Koper accept Medicare?
Yes. CMS data shows Dr. Koper billed Medicare for 1,952 services in 2024.
Does Dr. Catherine Koper offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Koper as offering telehealth services.
How many Medicare patients does Dr. Catherine Koper see?
CMS counts 309 Medicare patients who saw Dr. Koper in 2024, with an average age of 78.
Show 6 more questionsShow fewer questions
What services does Dr. Catherine Koper bill to Medicare?
In 2024, Dr. Koper's most billed Medicare services were hospital inpatient care (99233), office visit, established patient (99213) and hospital inpatient care (99223).
Where did Dr. Catherine Koper go to medical school?
Dr. Koper graduated from University of Medicine Sci In Poznan, Faculty Ii in 2009.
What drugs does Dr. Catherine Koper prescribe most?
In 2024 Medicare Part D data, Dr. Koper's most prescribed drugs by claims were Meropenem, Ertapenem and Vancomycin HCl.
Has Dr. Catherine Koper received payments from drug or device companies?
CMS Open Payments shows $1,832 in general payments to Dr. Koper from 11 companies from 2016 to 2025. The largest total came from Gilead Sciences, Inc.
How long has Dr. Catherine Koper been practicing?
Dr. Koper graduated from medical school in 2009, 17 years ago.
What insurance does Dr. Catherine Koper accept?
Dr. Koper is in network with 8 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
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