NPPES file of Aug 9, 2026

John Martin Klemm, MD

Psychiatry Physician · Santa Rosa, CA

John Martin Klemm, MD is a psychiatry physician with a practice address in Santa Rosa, California, and NPI 1447338942, issued on Nov 1, 2006. Check the license (California G87109, 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
1447338942
Name
John Martin Klemm
Credential
MD
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
G87109 CA
Self-reported in NPPES; status is on the state search
Practice location
401 Bicentennial Way, Santa Rosa, CA 95403
Phone
(707) 571-4000
Enumerated
Nov 1, 2006
Record last updated
Mar 19, 2013 (not updated in 13 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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Also registered at 401 Bicentennial Way

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

  1. Anna Ackerman, RNRegistered Nurse1376409409
  2. Patricia AdamsPhysical Therapist1124971825
  3. Hugo Aguilar, PHARMDPharmacist1992389134
  4. Heather Aiello, OTR/LOccupational Therapist1851155022
  5. Sandra Akrawi, REGISTERED DIETITIANRegistered Dietitian1790821031
  6. Miguel Alcala, LCSWClinical Social Worker1629857891

Verify John Martin Klemm in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G87109
    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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John Martin Klemm among 8,673 psychiatry physician records in California

John Martin Klemm, MD 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 updated2013 · 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).

73 psychiatry physician records list a practice address in Santa Rosa

They are 73 of the 6,884 NPPES records with a practice address in Santa Rosa, 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. Christine Bilbrey, M.D.Santa Rosa, CA 954031376766311
  2. Lester Debbold, MDSanta Rosa, CA 954031942384912
  3. L. Stanley Deen, MDSanta Rosa, CA 954031336291145
  4. George Goodman, MDSanta Rosa, CA 954031487644811
  5. Virginia Hofmann, MDSanta Rosa, CA 954031649276940
  6. Alice Kagan, MDSanta Rosa, CA 954031609950773
  7. Emily Keram, M.D.Santa Rosa, CA 954031528099496
  8. Jahanzeb Khan, MDSanta Rosa, CA 954031952648156

Common questions

What is John Martin Klemm, MD's NPI number?

John Martin Klemm, MD's National Provider Identifier (NPI) is 1447338942, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John Martin Klemm, MD located?

The NPPES record lists a practice address at 401 Bicentennial Way, Santa Rosa, CA, 95403. Phone: (707) 571-4000. Providers update this record themselves, so call before visiting.

How can I verify John Martin Klemm, MD's license?

NPPES lists California license number G87109, 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.