Charles Fredric Koenig, M.D.

Obstetrics Physician · Salinas, CA

Charles Fredric Koenig, M.D. is an obstetrics physician with a practice address in Salinas, California, and NPI 1902944523, issued on Feb 3, 2007. Check the license (California C32157, 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

1902944523

Name: Charles Fredric Koenig
Credential: M.D.
Primary taxonomy: Obstetrics Physician 207VX0000X
License number: C32157 CA
Self-reported in NPPES; status is on the state search
Practice location: 22140 Toro Hills Dr, Salinas, CA 93908
Phone: (831) 484-9322
Enumerated: Feb 3, 2007
Record last updated: Mar 7, 2023
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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8 nearest obstetrics physician records → All 174 in California → Look up another NPI →

Verify Charles Fredric Koenig in five checks

1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
2LicenseActive license and public ordersMedical Board of California
Search for license C32157Check the board
3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
5CertificationBoard certificationABMS AOA NCCPA AANPNot checked

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Charles Fredric Koenig among 174 obstetrics physician records in California

Charles Fredric Koenig, M.D. is one of 174 obstetrics 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 2007, is newer than 44% of them.

NPI issued2007 · 44% of these records are older, 39% newer
In a Medicare fileNo · 67% of these records are
In the CMS Doctors and Clinicians fileNo · 52% of these records are
Record last updated2023 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VX0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics Physician providers in California

There are 174 obstetrics physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 174 in California → Every provider in Salinas → Obstetrics Physician nationwide →

The 8 obstetrics physician records with the nearest ZIP codes

Vidya Mhamunkar, MDMountain View, CA 940401720311822
Dorothy Shoup, M.D.Redwood City, CA 940621205885662
Kelleen Bosch, DOFresno, CA 937201811105414
Kulwinder Kaur, NPFresno, CA 937111376884809
Fung-Yee Chan, M.D.San Francisco, CA 941091801963988
Elizabeth Moy, M.D.San Francisco, CA 941091447327572
Johnathan ZhaoFresno, CA 937061568091544
Maria Martin, MDSan Francisco, CA 941151275831828

Common questions

What is Charles Fredric Koenig, M.D.'s NPI number?

Charles Fredric Koenig, M.D.'s National Provider Identifier (NPI) is 1902944523, issued on Feb 3, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Charles Fredric Koenig, M.D. located?

The NPPES record lists a practice address at 22140 Toro Hills Dr, Salinas, CA, 93908. Phone: (831) 484-9322. Providers update this record themselves, so call before visiting.

How can I verify Charles Fredric Koenig, M.D.'s license?

NPPES lists California license number C32157, 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.