NPPES file of Aug 9, 2026

Gregory Alan Jaeck

Psychiatry Physician · Sacramento, CA

Gregory Alan Jaeck is a psychiatry physician with a practice address in Sacramento, California, and NPI 1831298165, issued on Sep 22, 2006. Check the license (California G42115, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1831298165
Name
Gregory Alan Jaeck
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
G42115 CA
Self-reported in NPPES; status is on the state search
Practice location
7700 Folsom Blvd., Sacramento, CA 95825
Phone
(916) 386-3000
Enumerated
Sep 22, 2006
Record last updated
Jul 9, 2007 (not updated in 19 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Gregory Alan Jaeck in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G42115
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Gregory Alan Jaeck among 8,673 psychiatry physician records in California

Gregory Alan Jaeck 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 not. Its NPI, issued in 2006, is newer than 2% of them.

  • NPI issued2006 · 2% of these records are older, 67% newer
  • In a Medicare fileNo · 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. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Bruce Berg, M.D.Sacramento, CA 958251255307021
  2. John Boyle, M.D.Sacramento, CA 958251053391029
  3. Maria J Caparas, MDSacramento, CA 958251942255393
  4. Beverly Caruso, M.D.Sacramento, CA 958251720112923
  5. Reena Lewis, MDSacramento, CA 958251124106836
  6. Marian Louis, MDSacramento, CA 958251457491144
  7. James Margolis, M.D.0Sacramento, CA 958251750305777
  8. Chad Murdock, MDSacramento, CA 958251427196575

Common questions

What is Gregory Alan Jaeck's NPI number?

Gregory Alan Jaeck's National Provider Identifier (NPI) is 1831298165, issued on Sep 22, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Gregory Alan Jaeck located?

The NPPES record lists a practice address at 7700 Folsom Blvd., Sacramento, CA, 95825. Phone: (916) 386-3000. Providers update this record themselves, so call before visiting.

How can I verify Gregory Alan Jaeck's license?

NPPES lists California license number G42115, 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.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.