NPPES file of Aug 9, 2026

Randall Glenn Turner, D.O.

Psychiatry Physician · Irvine, CA

Randall Glenn Turner, D.O. is a psychiatry physician with a practice address in Irvine, California, and NPI 1164696993, issued on Apr 14, 2008. Check the license (California 20A10933, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1164696993
Name
Randall Glenn Turner
Credential
D.O.
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
20A10933 CA
Self-reported in NPPES; status is on the state search
Practice location
17782 Cowan, Irvine, CA 92614
Phone
(949) 722-7118
Enumerated
Apr 14, 2008
Record last updated
Feb 23, 2015 (not updated in 11 years: call before relying on the address or phone)
Fax
(949) 722-7119
Medicare enrollment
Enrolled (PECOS I20120627000663); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 17782 Cowan

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Douglas Citro, PHDPsychologist1720095185
  2. Natalya Godes, PSYDPsychologist1417328287
  3. Sylvia Guthrie, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1861146045
  4. Jason Kellogg, M.D.Psychiatry Physician1952331530
  5. Clint Salo, DOPsychiatry Physician1811159221
  6. Angelo SantiagoPsychiatric/Mental Health Nurse Practitioner1356069900

Verify Randall Glenn Turner in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A10933
    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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91% fewer Medicare Part D claims than the average psychiatry physician in 2024

91 Medicare Part D claims for 16 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.

  1. Randall Turner91
  2. Specialty average1,000

Most prescribed

  1. Olanzapine18 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.

Bills Medicare through 2 group practices

  1. Jason Kellogg MD IncIrvine, CA
  2. Pacific Solstice Integrative ClinicMission Viejo, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Randall Glenn Turner among 8,673 psychiatry physician records in California

Randall Glenn Turner, D.O. 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 2008, is newer than 52% of them.

  • NPI issued2008 · 52% of these records are older, 43% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 38% of these records are
  • Graduated2008 · median 2005 among the 3,295 with a school on file
  • Record last updated2015 · 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).

54 psychiatry physician records list a practice address in Irvine

They are 54 of the 7,778 NPPES records with a practice address in Irvine, and 8,673 psychiatry physician records in California.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Sameh Mounir Yanni Elsanadi, MDIrvine, CA 926141285727271
  2. Valeh Karimkhani, DOIrvine, CA 926141053467720
  3. Jason Kellogg, M.D.Irvine, CA 926141952331530
  4. Jay Kim, MDIrvine, CA 926141386252567
  5. Elly Lee, MDIrvine, CA 926141508156316
  6. Clint Salo, DOIrvine, CA 926141811159221
  7. Sanjai Thankachen, M.D.Irvine, CA 926141982751756
  8. Bahman Amadi, M.D.Irvine, CA 926121346660925

Common questions

What is Randall Glenn Turner, D.O.'s NPI number?

Randall Glenn Turner, D.O.'s National Provider Identifier (NPI) is 1164696993, issued on Apr 14, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Randall Glenn Turner, D.O. located?

The NPPES record lists a practice address at 17782 Cowan, Irvine, CA, 92614. Phone: (949) 722-7118. Providers update this record themselves, so call before visiting.

How can I verify Randall Glenn Turner, D.O.'s license?

NPPES lists California license number 20A10933, 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 Randall Glenn Turner, D.O. prescribe under Medicare Part D?

In 2024, Randall Glenn Turner, D.O. had 91 Medicare Part D claims for 16 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.