Dr. Clarissa A. Doi, MD
- Part D claims, 2022
- 196
- Industry payments
- $122
- Affiliated sites
- 1
- State license
- 1
- Year NPI issued
- 2009
- Practice address
- 2055 Kellogg Ave, Corona, CA 92879-3681
- Practice phone
- Call (951) 415-6881
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Corona Medical Offices
Physician office · Corona, California
Find Dr. Doi's professional email, personal email and mobile number
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Dr. Clarissa A. Doi is an internist in Riverside, California
Dr. Doi practices at Corona Medical Offices in Corona, California.
Dr. Doi's NPI, 1467680264, was assigned on June 30, 2009. Dr. Doi graduated from Jefferson Medical College of Thomas Jefferson University in 2009. Dr. Doi holds California license A120758.
- NPI
- 1467680264NPI Registry (opens in a new tab)
- NPI enumeration date
- June 30, 2009
- NPI status
- Active
- Practice phone
- (951) 415-6881
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 43
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Clarissa A. Doi practices in Corona and Riverside
Dr. Doi's primary practice is Corona Medical Offices, at 2055 Kellogg Ave, Corona, CA 92879-3681. The practice phone is (951) 415-6881. The NPI Registry lists Dr. Doi's practice address as 10800 Magnolia Ave, Riverside, CA 92505.
- Corona Medical OfficesPrimary2055 Kellogg Ave, Corona, CA 92879-3681Phone(951) 415-6881
- NPI Registry address10800 Magnolia Ave, Riverside, CA 92505 · Riverside CountyPhone(650) 493-5000
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. Clarissa A. Doi is affiliated with 1 site of care
Dr. Doi's primary practice is Corona Medical Offices in Corona, California.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Clarissa A. Doi's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Doi practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Corona Medical Offices | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Clarissa A. Doi is one of 16,751 internists in California
Internal medicine is Dr. Doi's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Doi is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Doi
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. Clarissa A. Doi's patients have a median age of 34
Across all payers, Dmand AI patient panel data puts Dr. Doi's median patient age at 34, with 87% women.
Dr. Doi's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 34
Patient panel by sex, all payers
- Women87%
- Men13%
Source: Dmand AI Patient Panel Data
Dr. Clarissa A. Doi wrote 196 Medicare Part D claims in 2022
In 2022, Dr. Doi wrote 196 Medicare Part D claims. They cover 10 drugs, with $5,759 in total drug cost. In 2021, CMS named 1,500 claims across 51 drugs.
Dr. Doi's most prescribed drugs by claims, 2022
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 1,5002022: 19687%
Drugs named by CMS: 10 in 2022, 51 in 2021.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Clarissa A. Doi received $122 in industry payments in 2018
CMS Open Payments shows 1 general payment to Dr. Doi from 1 drug or device company in 2018. Food and beverage make up the largest share, 100% of the total. Amgen Inc. paid the most, $122.
Companies that paid Dr. Doi the most, 2018 to 2018
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Clarissa A. Doi graduated from Jefferson Medical College of Thomas Jefferson University
Dr. Doi graduated from Jefferson Medical College of Thomas Jefferson University in 2009.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Clarissa A. Doi'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 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) |
| Industry payments | Open Payments (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 Dr. Clarissa A. Doi
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. Clarissa A. Doi's NPI number?
Dr. Clarissa A. Doi's NPI number is 1467680264. It was assigned on June 30, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. Clarissa A. Doi?
Dr. Clarissa A. Doi is an internist in Riverside, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Clarissa A. Doi practice?
Dr. Doi practices at 2055 Kellogg Ave, Corona, CA 92879-3681. Dr. Doi also practices at 10800 Magnolia Ave, Riverside, CA 92505. Dr. Doi's primary practice is Corona Medical Offices in Corona, California.
What is Dr. Clarissa A. Doi's office phone number?
The practice phone on file for Dr. Doi is (951) 415-6881.
What is Dr. Clarissa A. Doi's medical license number?
Dr. Doi holds California license A120758.
Where did Dr. Clarissa A. Doi go to medical school?
Dr. Doi graduated from Jefferson Medical College of Thomas Jefferson University in 2009.
What drugs does Dr. Clarissa A. Doi prescribe most?
In 2022 Medicare Part D data, Dr. Doi's most prescribed drugs by claims were Atorvastatin Calcium, Rosuvastatin Calcium and Amlodipine Besylate.
Has Dr. Clarissa A. Doi received payments from drug or device companies?
CMS Open Payments shows $122 in general payments to Dr. Doi from 1 company from 2018 to 2018. The largest total came from Amgen Inc.
How long has Dr. Clarissa A. Doi been practicing?
Dr. Doi graduated from medical school in 2009, 17 years ago.
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