Registry data as of Aug 27, 2026

Katharine Potthast, LM

Midwife · Riverside, CA

Katharine Potthast, LM is a midwife with a practice address in Riverside, California, and NPI 1497007124, issued on Oct 4, 2012. Check the license (California 347, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, loaded Aug 27, 2026 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1497007124
Name
Katharine Potthast
Credential
LM
Primary taxonomy
Midwife 176B00000X
License number
347 CA
Self-reported in NPPES; status is on the state search
Practice location
17399 Heights LN, Riverside, CA 92503
Phone
(714) 812-5283
Enumerated
Oct 4, 2012
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 17399 Heights LN

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

  1. Mirella Ceja, RNFARegistered Nurse1326995697

Verify Katharine Potthast in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 347    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
Find 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.

Statewide context: the Medical Board of California reported 374 disciplinary actions in FY 2022-23. California discipline data →

Midwife providers in California

There are 678 midwife records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 678 in California → Every provider in Riverside →

Other midwife records in California

  1. Brianna Adams, LMEncinitas, CA1851152185
  2. Marlee Adams, LM, CPM, MSMArcata, CA1528775129
  3. Nicole Adelman, CNMDavis, CA1386991677
  4. Mireille Adelson, C.N.M.Roseville, CA1508293788
  5. Misty Adriaanse, C.P.M., L.M.Long Beach, CA1811259740
  6. Halima Afi, LM CPMSan Rafael, CA1730723958
  7. Cayo Alba, CNM, PMHNP-BCFort Bragg, CA1164718334
  8. Stacey Alt, CNM, WHNP-BCSan Diego, CA1164163077
  9. Adriann Anfiteatro, LM, CPMArcadia, CA1659678795
  10. Hiroko Aoyagi, LM, CPMCulver City, CA1619545043

Common questions

What is Katharine Potthast, LM's NPI number?

Katharine Potthast, LM's National Provider Identifier (NPI) is 1497007124, issued on Oct 4, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Katharine Potthast, LM located?

The NPPES record lists a practice address at 17399 Heights LN, Riverside, CA, 92503. Phone: (714) 812-5283. Providers update this record themselves, so call before visiting.

How can I verify Katharine Potthast, LM's license?

NPPES lists California license number 347, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Compiled from official public sources by the editorial process.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.