Jon Chaffee, M.D.
Psychiatry Physician · Long Beach, CA
Jon Chaffee, M.D. is a psychiatry physician with a practice address in Long Beach, California, and NPI 1881761203, issued on Nov 29, 2006. Check the license (California G69373, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Jon Chaffee
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- G69373 CA
Self-reported in NPPES; status is on the state search - Practice location
- 5318 E 2ND St # 546, Long Beach, CA 90803
- Phone
- (562) 433-3220
- Enumerated
- Nov 29, 2006
- Record last updated
- Mar 31, 2025
- Fax
- (562) 439-4307
- Medicaid ID
- 00G693732 CA
- Medicare enrollment
- Enrolled (PECOS I20120202000596); accepts Medicare assignment
- Medical or professional school
- University Of Minnesota Medical School, 1989
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Verify Jon Chaffee in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G69373Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
51% more Medicare Part D claims than the average psychiatry physician in 2024
1,513 Medicare Part D claims for 245 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.
Most prescribed
- Quetiapine Fumarate106 claims
- Olanzapine96 claims
- Risperidone73 claims
- Gabapentin56 claims
- Divalproex Sodium47 claims
- Trazodone Hcl47 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.
Jon Chaffee among 8,673 psychiatry physician records in California
Jon Chaffee, 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 fileYes · 38% of these records are
- Graduated1989 · median 2005 among the 3,295 with a school on file
- Record last updated2025 · 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 Long Beach → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Tracy Chaffee, M.D.Long Beach, CA 908031063681633
- Gol Ara, MDLong Beach, CA 908021780180687
- Nadia Barati, MDLong Beach, CA 908021497917207
- Charles Carlstroem, M.D.Long Beach, CA 908041134207475
- Roger Epstein, M.D.Long Beach, CA 908041053499384
- Joshua Flatow, M.D.Long Beach, CA 908021487996302
- Brooke Goldner, M.D.Long Beach, CA 908041508906421
- Markus Horvath, M.D.Long Beach, CA 908021073632345
Common questions
What is Jon Chaffee, M.D.'s NPI number?
Jon Chaffee, M.D.'s National Provider Identifier (NPI) is 1881761203, issued on Nov 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jon Chaffee, M.D. located?
The NPPES record lists a practice address at 5318 E 2ND St # 546, Long Beach, CA, 90803. Phone: (562) 433-3220. Providers update this record themselves, so call before visiting.
How can I verify Jon Chaffee, M.D.'s license?
NPPES lists California license number G69373, 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 Jon Chaffee, M.D. prescribe under Medicare Part D?
In 2024, Jon Chaffee, M.D. had 1,513 Medicare Part D claims for 245 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.