John Tremblay
Psychiatry Physician · Torrance, CA
John Tremblay is a psychiatry physician with a practice address in Torrance, California, and NPI 1891834362, issued on Feb 5, 2007. Check the license (California A70443, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- John Tremblay
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- A70443 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3333 Skypark Drive Suite 220, Torrance, CA 90505
- Phone
- (310) 257-5750
- Enumerated
- Feb 5, 2007
- Record last updated
- Dec 5, 2023
- Fax
- (310) 257-5753
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Verify John Tremblay in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A70443Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average psychiatry physician in 2024
16 Medicare Part D claims, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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: $101.18
1 payment: food and beverage; the largest payer was Janssen Pharmaceuticals, 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.
John Tremblay among 8,673 psychiatry physician records in California
John Tremblay 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 updated2023 · 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).
150 psychiatry physician records list a practice address in Torrance
They are 150 of the 8,901 NPPES records with a practice address in Torrance, and 8,673 psychiatry physician records in California.
All 8,673 in California → Every provider in Torrance → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Kenneth Abjelina, MDTorrance, CA 905051649267071
- Peter Ampudia, MDTorrance, CA 905051700858214
- Manolito Fidel, MDTorrance, CA 905051326098534
- Jack Freinhar, M.D.Torrance, CA 905051689618878
- Ronald Gelfand, MDTorrance, CA 905051700845088
- Alan Green, M.D.Torrance, CA 905051497721260
- Margarita Krasnova, MDTorrance, CA 905051639240757
- Charles Lee, MDTorrance, CA 905051306852561
Common questions
What is John Tremblay's NPI number?
John Tremblay's National Provider Identifier (NPI) is 1891834362, issued on Feb 5, 2007. An NPI identifies a provider in billing; it is not a license.
Where is John Tremblay located?
The NPPES record lists a practice address at 3333 Skypark Drive Suite 220, Torrance, CA, 90505. Phone: (310) 257-5750. Providers update this record themselves, so call before visiting.
How can I verify John Tremblay's license?
NPPES lists California license number A70443, 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 Tremblay prescribe under Medicare Part D?
In 2024, John Tremblay had 16 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.