NPPES file of Aug 9, 2026

Catherine Johnsen, DO

Family Medicine Physician · Santa Rosa, CA

Catherine Johnsen, DO is a family medicine physician with a practice address in Santa Rosa, California, and NPI 1801830724, issued on Jun 15, 2006. Check the license (California ZOA7468, 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
1801830724
Name
Catherine Johnsen
Credential
DO
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
ZOA7468 CA
Self-reported in NPPES; status is on the state search
Practice location
4700 Hoen Ave, Santa Rosa, CA 95405
Phone
(707) 526-3360
Enumerated
Jun 15, 2006
Record last updated
Jul 13, 2026
Fax
(707) 526-0554
Medicaid ID
00AX74680 CA
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 4700 Hoen Ave

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

  1. Katherine Hardin, FNPFamily Nurse Practitioner1871085662
  2. Robert Heckey, MDGeneral Practice Physician1205879681
  3. Thomas Honrath, M.D.Family Medicine Physician1093779845
  4. Ana Pacheco Clark, MDFamily Medicine Physician1053352948
  5. Saverio Roberto, DOInternal Medicine Physician1700285103
  6. Kirsty Viera, PSY.D.Clinical Psychologist1992995534

Verify Catherine Johnsen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license ZOA7468
    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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Catherine Johnsen among 17,133 family medicine physician records in California

Catherine Johnsen, DO is one of 17,133 family medicine physician records with a practice address in California. 81% 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 6% of them.

  • NPI issued2006 · 6% of these records are older, 59% newer
  • In a Medicare fileNo · 81% of these records are
  • In the CMS Doctors and Clinicians fileNo · 62% of these records are
  • Record last updated2026 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

264 family medicine physician records list a practice address in Santa Rosa

They are 264 of the 6,884 NPPES records with a practice address in Santa Rosa, and 17,133 family medicine physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 family medicine physician records with the nearest ZIP codes

  1. Herbert Brosbe, M.D.Santa Rosa, CA 954051518940519
  2. Forrest Chilcott, MDSanta Rosa, CA 954051841229689
  3. James Devore, MDSanta Rosa, CA 954051043273469
  4. Tabitha Doniach, M.D., PH.D.Santa Rosa, CA 954051952344616
  5. Gary Furness, MDSanta Rosa, CA 954051144281635
  6. Alvin Gore, MDSanta Rosa, CA 954051326042821
  7. Thomas Honrath, M.D.Santa Rosa, CA 954051093779845
  8. Stacey Kerr, M.D.Santa Rosa, CA 954051083713473

Common questions

What is Catherine Johnsen, DO's NPI number?

Catherine Johnsen, DO's National Provider Identifier (NPI) is 1801830724, issued on Jun 15, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Catherine Johnsen, DO located?

The NPPES record lists a practice address at 4700 Hoen Ave, Santa Rosa, CA, 95405. Phone: (707) 526-3360. Providers update this record themselves, so call before visiting.

How can I verify Catherine Johnsen, DO's license?

NPPES lists California license number ZOA7468, 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.