Ornella Addonizio, M.D.
Psychiatry Physician · Redding, CA
Ornella Addonizio, M.D. is a psychiatry physician with a practice address in Redding, California, and NPI 1154401149, issued on Oct 16, 2006. Check the license (California A54305, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ornella Addonizio
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- A54305 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2891 Churn Creek RD., Redding, CA 96002
- Phone
- (530) 221-7474
- Enumerated
- Oct 16, 2006
- Record last updated
- Feb 26, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (530) 226-6329
- Medicaid ID
- 00A543050 CA
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Verify Ornella Addonizio in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A54305Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.3 times the Medicare Part D claims of the average psychiatry physician in 2024
3,331 Medicare Part D claims for 220 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.
Most prescribed
- Trazodone Hcl206 claims
- Aripiprazole144 claims
- Buspirone Hcl122 claims
- Quetiapine Fumarate120 claims
- Sertraline Hcl112 claims
- Olanzapine110 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $1,508.09
87 payments; by number, the most common kind was food and beverage; the largest payer was Iti, Inc. (d/b/a Intra-Cellular Therapies, Inc.). The 13,693 providers of this specialty with any payment received $4,954.93 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Ornella Addonizio among 8,673 psychiatry physician records in California
Ornella Addonizio, M.D. is one of 8,673 psychiatry physician records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 2% of them.
- NPI issued2006 · 2% of these records are older, 67% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 38% of these records are
- Record last updated2012 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatry Physician providers in California
There are 8,673 psychiatry physician records in California.
All 8,673 in California → Every provider in Redding → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Thomas Andrews, M.D.Redding, CA 960021245393651
- Nitin Bagul, M.D.Redding, CA 960021043414204
- L. Clark, M.D.Redding, CA 960021356324941
- Alicia Kerr, M.D.Redding, CA 960021003343583
- Sara Seeger, MDRedding, CA 960021417936188
- Imran Khan, MDRedding, CA 960011861514531
- Asif MajidRedding, CA 960011801274881
- Aravind Pai, M.D.Redding, CA 960011629076088
Common questions
What is Ornella Addonizio, M.D.'s NPI number?
Ornella Addonizio, M.D.'s National Provider Identifier (NPI) is 1154401149, issued on Oct 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ornella Addonizio, M.D. located?
The NPPES record lists a practice address at 2891 Churn Creek RD., Redding, CA, 96002. Phone: (530) 221-7474. Providers update this record themselves, so call before visiting.
How can I verify Ornella Addonizio, M.D.'s license?
NPPES lists California license number A54305, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ornella Addonizio, M.D. prescribe under Medicare Part D?
In 2024, Ornella Addonizio, M.D. had 3,331 Medicare Part D claims for 220 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.