Marissa King, PA-C
- Part D claims, 2024
- 367
- Industry payments
- $103
- Affiliated sites
- 1
- Medical group
- 1
- Year NPI issued
- 2022
- Practice address
- 3095 Old Conejo Rd Suite 200 Suite 200, Thousand Oaks, CA 91320-2130
- Practice phone
- Call (888) 367-1850
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
California Dermatology Institute - Thousand Oaks
Dermatology practice · Thousand Oaks, California
Find Marissa King'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.
Marissa King is a physician assistant in San Diego, California
Marissa King practices at California Dermatology Institute - Thousand Oaks in Thousand Oaks, California.
Marissa King's NPI, 1174259154, was assigned on August 1, 2022.
- NPI
- 1174259154NPI Registry (opens in a new tab)
- NPI enumeration date
- August 1, 2022
- NPI status
- Active
- Practice phone
- (888) 367-1850
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 31
- Medical school graduation
- 2021
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Marissa King practices in Thousand Oaks and San Diego
Marissa King's primary practice is California Dermatology Institute - Thousand Oaks, at 3095 Old Conejo Rd Suite 200 Suite 200, Thousand Oaks, CA 91320-2130. The practice phone is (888) 367-1850. The NPI Registry lists Marissa King's practice address as 6719 Alvarado Rd Ste 308, San Diego, CA 92120-5268.
- California Dermatology Institute - Thousand OaksPrimary3095 Old Conejo Rd Suite 200 Suite 200, Thousand Oaks, CA 91320-2130Phone(888) 367-1850
- NPI Registry address6719 Alvarado Rd Ste 308, San Diego, CA 92120-5268Phone(619) 784-4439
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Marissa King is affiliated with 1 site of care and 1 medical group
Marissa King's primary practice is California Dermatology Institute - Thousand Oaks in Thousand Oaks, California. The medical group on file is California Dermatology Institute.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Marissa King's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Marissa King practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| California Dermatology Institute - Thousand Oaks | Available with a free account |
Source: Dmand AI Technology Install Data
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Marissa King is one of 11,482 physician assistants in California
Physician assistant is Marissa King's primary specialty in the NPI Registry, under taxonomy code 363A00000X.
Specialties and state licenses
- Physician assistantPrimary
- Medical physician assistant
- Surgical physician assistant
Physician assistants near Marissa King
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
Marissa King's patients have a median age of 74
Across all payers, Dmand AI patient panel data puts Marissa King's median patient age at 74, with 45% women.
Marissa King's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women45%
- Men55%
Source: Dmand AI Patient Panel Data
Marissa King wrote 367 Medicare Part D claims in 2024
In 2024, Marissa King wrote 367 Medicare Part D claims for 191 patients. 97% of them were for generic drugs. CMS names the drug for 306 of them, across 6 drugs with 11 or more claims each, at $5,005 in total drug cost.
Marissa King's Part D claims by kind of drug, 2024
- Generic357 claims97%
- Brand-name and other10 claims3%
Marissa King'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 Marissa King's Part D claims, 2024
- Opioids41%149 of 367 claims
- Antibiotics4%13 of 367 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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Marissa King received $103 in industry payments in 2025
CMS Open Payments shows 3 general payments to Marissa King from 2 drug and device companies in 2025. Education make up the largest share, 63% of the total. Janssen Pharmaceuticals, Inc paid the most, $87.
General payments to Marissa King by kind, 2025 to 2025
- Education$6563%
- Food and beverage$3837%
Companies that paid Marissa King the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Marissa King'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 DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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) |
| 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 Marissa King
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Marissa King's NPI number?
Marissa King's NPI number is 1174259154. It was assigned on August 1, 2022, and it is active in the NPI Registry.
What does Marissa King specialize in?
Marissa King is a physician assistant in San Diego, California. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Marissa King practice?
Marissa King practices at 3095 Old Conejo Rd Suite 200 Suite 200, Thousand Oaks, CA 91320-2130. Marissa King also practices at 6719 Alvarado Rd Ste 308, San Diego, CA 92120-5268. Marissa King's primary practice is California Dermatology Institute - Thousand Oaks in Thousand Oaks, California.
What is Marissa King's office phone number?
The practice phone on file for Marissa King is (888) 367-1850.
What medical group is Marissa King part of?
Marissa King is linked to California Dermatology Institute.
What drugs does Marissa King prescribe most?
In 2024 Medicare Part D data, Marissa King's most prescribed drugs by claims were Cyclobenzaprine HCl, Hydrocodone-Acetaminophen and Oxycodone-Acetaminophen.
Has Marissa King received payments from drug or device companies?
CMS Open Payments shows $103 in general payments to Marissa King from 2 companies from 2025 to 2025. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Marissa King been practicing?
Marissa King graduated from medical school in 2021, 5 years ago.
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