NPPES file of Aug 9, 2026

Katherine Stirk Ferguson, MD

Pediatrics Physician · Ridgecrest, CA

Katherine Stirk Ferguson, MD is a pediatrics physician with a practice address in Ridgecrest, California, and NPI 1679576292, issued on May 27, 2005. Check the license (California C425540, 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
1679576292
Name
Katherine Stirk Ferguson
Credential
MD
Primary taxonomy
Pediatrics Physician 208000000X
License number
C425540 CA
Self-reported in NPPES; status is on the state search
Practice location
1041 N China Lake Blvd, Ridgecrest, CA 93555
Phone
(760) 446-6404
Enumerated
May 27, 2005
Record last updated
May 2, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(760) 446-6415
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 1041 N China Lake Blvd

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

  1. Barbara Bass, M.D.Dermatology Physician1518960327
  2. William Cannata, M.D.Surgery Physician1891834446
  3. Healthy Desai, M.D.Sports Medicine (Orthopaedic Surgery) Physician1639327315
  4. Maurice Dusol, M.D.Gastroenterology Physician1326034273
  5. William Ferguson, M.D.Family Medicine Physician1033112768
  6. James Hwang, MDGastroenterology Physician1659803146

Verify Katherine Stirk Ferguson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license C425540
    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

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8 pediatrics physician records list a practice address in Ridgecrest

They are 8 of the 485 NPPES records with a practice address in Ridgecrest, and 9,272 pediatrics physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other pediatrics physician records in California

  1. Subha Aahlad, M.D.Foster City, CA1780610253
  2. Rebecca Aaronson, MDPanorama City, CA1487746814
  3. Gregorio Abad-Santos, M.D.Long Beach, CA1255451894
  4. Michelle Abajian, MDLa Canada, CA1619176757
  5. Joseph Abapo, MDRiverside, CA1841348786
  6. Zvart Abaryan, MDLos Angeles, CA1154940849
  7. Lauren Abbas, MDLos Angeles, CA1982163796
  8. Attia Abbasi, M.D.Auburn, CA1922027127
  9. Denise AbbasiParadise, CA1770062341
  10. Alexandra Abbott, MDPalo Alto, CA1760018675

Common questions

What is Katherine Stirk Ferguson, MD's NPI number?

Katherine Stirk Ferguson, MD's National Provider Identifier (NPI) is 1679576292, issued on May 27, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Katherine Stirk Ferguson, MD located?

The NPPES record lists a practice address at 1041 N China Lake Blvd, Ridgecrest, CA, 93555. Phone: (760) 446-6404. Providers update this record themselves, so call before visiting.

How can I verify Katherine Stirk Ferguson, MD's license?

NPPES lists California license number C425540, 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.