Cassandra L. Karn, PA
- Medicare services, 2024
- 111
- Medicare patients, 2024
- 94
- Part D claims, 2024
- 135
- Hospital affiliations
- 2
- Medical groups
- 2
- Practice address
- 27700 Medical Center Rd, Mission Viejo, CA 92691
- Practice phone
- Call (949) 365-2447
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Mission Hospital - Unit
Acute Care Hospital-Unit · Mission Viejo, California
Find Cassandra Karn'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.
Cassandra L. Karn is a physician assistant in Mission Viejo, California
Cassandra Karn practices at Mission Hospital - Unit in Mission Viejo, California.
Cassandra Karn's NPI, 1245247774, was assigned on August 1, 2006. Cassandra Karn holds California license PA16936.
- NPI
- 1245247774NPI Registry (opens in a new tab)
- NPI enumeration date
- August 1, 2006
- NPI status
- Active
- Practice phone
- (949) 365-2447
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Cassandra L. Karn practices at Mission Hospital - Unit in Mission Viejo, California
Cassandra Karn's primary practice is Mission Hospital - Unit, at 27700 Medical Center Rd, Mission Viejo, CA 92691 in Orange County. The practice phone is (949) 365-2447.
- Mission Hospital - Unit27700 Medical Center Rd, Mission Viejo, CA 92691 · Orange CountyPhone(949) 365-2447
Source: Dmand AI Affiliation Data
Cassandra L. Karn is affiliated with 2 sites of care and 2 medical groups
Cassandra Karn's primary practice is Mission Hospital - Unit in Mission Viejo, California. Cassandra Karn is also affiliated with Providence Mission Hospital. The medical group on file is Emergency Medicine Physicians. Dmand AI also links Cassandra Karn to 1 more medical group, named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Cassandra L. Karn's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Cassandra Karn practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mission Hospital - Unit | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Cassandra L. Karn is one of 11,482 physician assistants in California
Physician assistant is Cassandra Karn's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Cassandra Karn is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA). Cassandra Karn is licensed in California.
Specialties and state licenses
- Physician assistant, CaliforniaPrimary
Physician assistants near Cassandra Karn
Counts of physician assistants 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
Cassandra L. Karn billed Medicare for 111 services in 2024
CMS data shows 111 Medicare services from Cassandra Karn across 5 procedure codes in 2024, for 94 Medicare patients. Medicare paid $8,992 for them. Every service was in a facility, such as a hospital, rather than an office.
Cassandra Karn's Medicare services by type, 2024
- Office and hospital visits91
- Tests and treatments20
Cassandra Karn compared with the California median for physician assistants, 2024
- Cassandra Karn
- California median
- Medicare services
- 111vs 20446% below
- Medicare patients
- 94vs 10510% below
- Part D claims
- 56vs 24377% below
Medians across 7,065 physician assistants in California with Dmand AI profiles that report each measure.
Cassandra Karn'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Cassandra Karn and other physician assistants in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Cassandra L. Karn treated 94 Medicare patients in 2024, average age 74
CMS counts 94 Medicare patients who saw Cassandra Karn in 2024. The largest group is 75 to 84, with 37 patients. 74% of them have high cholesterol, and 72% have high blood pressure. 21% are also on Medicaid. Their average risk score is 1.18, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Cassandra Karn's median patient age at 45, with 57% women.
Cassandra Karn's Medicare patients by age, 2024
Cassandra Karn's Medicare patients by sex, 2024
- Women5154%
- Men4346%
Chronic conditions among Cassandra Karn's Medicare patients, 2024
- High cholesterol74%
- High blood pressure72%
- Arthritis59%
- Anxiety29%
- Diabetes29%
- Mood disorders27%
- Depression24%
- Atrial fibrillation21%
Share of Medicare patients with each condition. A patient can have several.
Cassandra Karn's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 45
Patient panel by sex, all payers
- Women57%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Cassandra L. Karn wrote 135 Medicare Part D claims in 2024
In 2024, Cassandra Karn wrote 135 Medicare Part D claims for 82 patients. 95% of them were for generic drugs. CMS names the drug for 56 of them, across 3 drugs with 11 or more claims each, at $306 in total drug cost.
Cassandra Karn's Part D claims by kind of drug, 2024
- Generic128 claims95%
- Brand-name and other7 claims5%
Cassandra Karn'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 Cassandra Karn's Part D claims, 2024
- Opioids31%42 of 135 claims
- Antibiotics24%33 of 135 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
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Cassandra L. Karn is board certified in certified physician assistant
- Board certified in certified physician assistant
Source: Dmand AI Professional Profile Data
Sources for Cassandra L. Karn'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation 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) |
| Training, board certification and memberships | Dmand AI Professional Profile 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 Cassandra L. Karn
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Cassandra L. Karn's NPI number?
Cassandra L. Karn's NPI number is 1245247774. It was assigned on August 1, 2006, and it is active in the NPI Registry.
What does Cassandra L. Karn specialize in?
Cassandra L. Karn is a physician assistant in Mission Viejo, California. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Cassandra L. Karn practice?
Cassandra Karn practices at 27700 Medical Center Rd, Mission Viejo, CA 92691. Cassandra Karn's primary practice is Mission Hospital - Unit in Mission Viejo, California. Dmand AI also links Cassandra Karn to 1 medical group.
What is Cassandra L. Karn's office phone number?
The practice phone on file for Cassandra Karn is (949) 365-2447.
What is Cassandra L. Karn's medical license number?
Cassandra Karn holds California license PA16936.
Which hospitals is Cassandra L. Karn affiliated with?
Cassandra Karn is affiliated with Providence Mission Hospital. Dmand AI links Cassandra Karn to 1 more hospital.
What medical group is Cassandra L. Karn part of?
Cassandra Karn is linked to Emergency Medicine Physicians. Dmand AI links Cassandra Karn to 1 more medical group.
Does Cassandra L. Karn accept Medicare?
Yes. CMS data shows Cassandra Karn billed Medicare for 111 services in 2024.
How many Medicare patients does Cassandra L. Karn see?
CMS counts 94 Medicare patients who saw Cassandra Karn in 2024, with an average age of 74.
Is Cassandra L. Karn board certified?
Yes. Cassandra Karn is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA).
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What services does Cassandra L. Karn bill to Medicare?
In 2024, Cassandra Karn's most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and heart test or procedure (93010).
What drugs does Cassandra L. Karn prescribe most?
In 2024 Medicare Part D data, Cassandra Karn's most prescribed drugs by claims were Hydrocodone-Acetaminophen, Ondansetron ODT and Cephalexin.
How long has Cassandra L. Karn been practicing?
Cassandra Karn's NPI was assigned in 2006.
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