John Thor Cornelius, M.D.
Psychiatry Physician · Sacramento, CA
John Thor Cornelius, M.D. is a psychiatry physician with a practice address in Sacramento, California, and NPI 1467500751, issued on Jan 5, 2007. Check the license (California A79957, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- John Thor Cornelius
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- A79957 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1400 A St Bldg A, Sacramento, CA 95814
- Phone
- (916) 440-1500
- Enumerated
- Jan 5, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (916) 440-1512
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Also registered at 1400 A St Bldg A
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Neal McAuliffeCase Manager/Care Coordinator1043348030
- Charles Stevens, LCSWSocial Worker1922031640
Verify John Thor Cornelius in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A79957Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
57% fewer Medicare Part D claims than the average psychiatry physician in 2024
430 Medicare Part D claims, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.
Most prescribed
- Risperidone72 claims
- Quetiapine Fumarate47 claims
- Lamotrigine38 claims
- Bupropion Xl30 claims
- Mirtazapine27 claims
- Clonazepam26 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.
John Thor Cornelius among 8,673 psychiatry physician records in California
John Thor Cornelius, 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 2007, is newer than 33% of them.
- NPI issued2007 · 33% of these records are older, 48% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 38% of these records are
- Record last updated2007 · 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).
331 psychiatry physician records list a practice address in Sacramento
They are 331 of the 33,083 NPPES records with a practice address in Sacramento, and 8,673 psychiatry physician records in California.
All 8,673 in California → Every provider in Sacramento → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Stephanie De Vera, DOSacramento, CA 958141770160871
- Marian DrobaSacramento, CA 958141235164765
- Jeffery Kahn, MDSacramento, CA 958141245241934
- Rebecca Nkrumah, MDSacramento, CA 958141700302189
- Muniyapla Rajappa, M.DSacramento, CA 958141013139088
- Erik Shwarts, M.D.Sacramento, CA 958141700206174
- Ari Harris, M.D.Sacramento, CA 958151124386875
- Ni Ni Hla, M.D.Sacramento, CA 958151356458616
Common questions
What is John Thor Cornelius, M.D.'s NPI number?
John Thor Cornelius, M.D.'s National Provider Identifier (NPI) is 1467500751, issued on Jan 5, 2007. An NPI identifies a provider in billing; it is not a license.
Where is John Thor Cornelius, M.D. located?
The NPPES record lists a practice address at 1400 A St Bldg A, Sacramento, CA, 95814. Phone: (916) 440-1500. Providers update this record themselves, so call before visiting.
How can I verify John Thor Cornelius, M.D.'s license?
NPPES lists California license number A79957, 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 John Thor Cornelius, M.D. prescribe under Medicare Part D?
In 2024, John Thor Cornelius, M.D. had 430 Medicare Part D claims; 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.