Christopher K. Chung, M.D.
Geriatric Psychiatry Physician · Torrance, CA
Christopher K. Chung, M.D. is a geriatric psychiatry physician with a practice address in Torrance, California, and NPI 1750352944, issued on Jan 27, 2006. Check the license (California A39527, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Christopher K. Chung
- Credential
- M.D.
- Primary taxonomy
- Geriatric Psychiatry Physician 2084P0805X
- License number
- A39527 CA
Self-reported in NPPES; status is on the state search - Practice location
- 21840 Normandie Ave, Torrance, CA 90502
- Phone
- (310) 222-3101
- Enumerated
- Jan 27, 2006
- Record last updated
- Sep 4, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (310) 320-6973
- Medicaid ID
- 00A395270 CA
- Entity
- Type 1 · individual
8 nearest geriatric psychiatry physician records → All 87 in California → Look up another NPI →
Also registered at 21840 Normandie Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Christopher K. Chung in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A39527Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
77% fewer Medicare Part D claims than the average geriatric psychiatry physician in 2024
340 Medicare Part D claims for 32 beneficiaries, against an average of 1,485 among the 473 providers of this specialty who prescribed in Part D.
Most prescribed
- Fluoxetine Hcl71 claims
- Clonazepam63 claims
- Olanzapine34 claims
- Zolpidem Tartrate31 claims
- Paroxetine Hcl25 claims
- Lorazepam13 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.
Christopher K. Chung among 87 geriatric psychiatry physician records in California
Christopher K. Chung, M.D. is one of 87 geriatric psychiatry physician records with a practice address in California. 61% 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, 45% newer
- In a Medicare fileYes · 61% of these records are
- In the CMS Doctors and Clinicians fileNo · 36% of these records are
- Record last updated2009 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0805X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Geriatric Psychiatry Physician providers in California
There are 87 geriatric psychiatry physician records in California.
All 87 in California → Every provider in Torrance → Geriatric Psychiatry Physician nationwide →
The 8 geriatric psychiatry physician records with the nearest ZIP codes
- Harsukh Savalia, M.D.Cerritos, CA 907031821204900
- Abes Bagheri, M.D.Los Alamitos, CA 907201073619789
- Kotra Ajir, MDLos Angeles, CA 900951134152754
- Michael Leuchter, MD, MSCLos Angeles, CA 900951770110686
- Sarah Hays, MDLos Angeles, CA 900731194813725
- Joan Scheibel, M.D.Los Angeles, CA 900731366551012
- David Sultzer, MDLos Angeles, CA 900731194812461
- Amy Walston, MDLos Angeles, CA 900731326091695
Common questions
What is Christopher K. Chung, M.D.'s NPI number?
Christopher K. Chung, M.D.'s National Provider Identifier (NPI) is 1750352944, issued on Jan 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Christopher K. Chung, M.D. located?
The NPPES record lists a practice address at 21840 Normandie Ave, Torrance, CA, 90502. Phone: (310) 222-3101. Providers update this record themselves, so call before visiting.
How can I verify Christopher K. Chung, M.D.'s license?
NPPES lists California license number A39527, 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 Christopher K. Chung, M.D. prescribe under Medicare Part D?
In 2024, Christopher K. Chung, M.D. had 340 Medicare Part D claims for 32 beneficiaries; the average among geriatric psychiatry physician prescribers was 1,485. 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.