NPPES file of Aug 9, 2026

Susan Foster Stone, PHD

Clinical Child & Adolescent Psychologist · Newhall, CA

Susan Foster Stone, PHD is a clinical child & adolescent psychologist with a practice address in Newhall, California, and NPI 1548383672, issued on Apr 6, 2007. Check the license (California PSY9940, 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, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1548383672
Name
Susan Foster Stone
Credential
PHD
Primary taxonomy
Clinical Child & Adolescent Psychologist 103TC2200X
License number
PSY9940 CA
Self-reported in NPPES; status is on the state search
Practice location
23504 Lyons Ave, Newhall, CA 91321
Phone
(661) 253-1719
Enumerated
Apr 6, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(661) 255-3751
Medicare enrollment
Enrolled (PECOS I20240628000238); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest clinical child & adolescent psychologist records → All 670 in California → Look up another NPI →

Also registered at 23504 Lyons Ave

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

  1. Rollieca Baluyot, SLPASpeech-Language Assistant1508201054
  2. Marisol BarreraRehabilitation Practitioner1861766222
  3. Tina M. Biondo, SLPASpeech-Language Assistant1063843514
  4. Julie Criss-Hagerty, PH.D.Clinical Psychologist1588753313
  5. Cari Englund, M.S.W.Social Worker1750666418
  6. Vanessa GomezBehavior Technician1528575107

Verify Susan Foster Stone 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 PSY9940    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

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Susan Foster Stone among 670 clinical child & adolescent psychologist records in California

Susan Foster Stone, PHD is one of 670 clinical child & adolescent psychologist records with a practice address in California. 3% 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 14% of them.

  • NPI issued2007 · 14% of these records are older, 62% newer
  • In a Medicare fileNo · 3% of these records are
  • In the CMS Doctors and Clinicians fileYes · 6% of these records are
  • Graduated1985 · median 2010 among the 37 with a school on file
  • Record last updated2007 · 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 103TC2200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Clinical Child & Adolescent Psychologist providers in California

There are 670 clinical child & adolescent psychologist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 670 in California → Every provider in Newhall → Clinical Child & Adolescent Psychologist nationwide →

The 8 clinical child & adolescent psychologist records with the nearest ZIP codes

  1. Peter Murphy, PH.D.Encino, CA 913161447423272
  2. Heleen Klein, PHDReseda, CA 913351811192883
  3. Olabisi OyewoReseda, CA 913351194131680
  4. Evelin Garcia, PSY.D.Winnetka, CA 913061669503561
  5. Paayal BediSan Fernando, CA 913401720620743
  6. Sarita Freedman, PH.D.Calabasas, CA 913021598976722
  7. Eve Goldstein, PSY.D.Calabasas, CA 913021164233235
  8. Sonia Herten-Greaven, PH.D.Calabasas, CA 913021568525467

Common questions

What is Susan Foster Stone, PHD's NPI number?

Susan Foster Stone, PHD's National Provider Identifier (NPI) is 1548383672, issued on Apr 6, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Susan Foster Stone, PHD located?

The NPPES record lists a practice address at 23504 Lyons Ave, Newhall, CA, 91321. Phone: (661) 253-1719. Providers update this record themselves, so call before visiting.

How can I verify Susan Foster Stone, PHD's license?

NPPES lists California license number PSY9940, 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), 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.