NPPES file of Aug 9, 2026

Madison Sunnquist, PHD

Clinical Child & Adolescent Psychologist · Palo Alto, CA

Madison Sunnquist, PHD is a clinical child & adolescent psychologist with a practice address in Palo Alto, California, and NPI 1083278923, issued on Apr 25, 2019. Check the license (California PSY33080, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1083278923
Name
Madison Sunnquist
Credential
PHD
Primary taxonomy
Clinical Child & Adolescent Psychologist 103TC2200X
License numbers
PSY33080 CA
33080 CA
Self-reported in NPPES; status is on the state search
Practice location
725 Welch RD, Palo Alto, CA 94304
Phone
(650) 497-8000
Enumerated
Apr 25, 2019
Record last updated
Apr 29, 2024
Medicare enrollment
Enrolled (PECOS I20220118002455); accepts Medicare assignment
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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Also registered at 725 Welch RD

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

  1. Shayda Abadi, NPNurse Practitioner1316745540
  2. Natasha AbadillaStudent in an Organized Health Care Education/Training Program1194306928
  3. Alexandra Abbott, MDPediatrics Physician1760018675
  4. Steven Abboud, MDAnesthesiology Physician1619364908
  5. Ali Abdelhafiz Abdelsamea, MDPediatrics Physician1699390104
  6. Alireza Abdollah Shamshirsaz, M.D.Obstetrics & Gynecology Physician1881804235

Verify Madison Sunnquist 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 PSY33080
    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.

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Bills Medicare through one group practice

  1. Lpch Medical Group Div OF LucilePalo Alto, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Madison Sunnquist among 670 clinical child & adolescent psychologist records in California

Madison Sunnquist, 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. Its NPI, issued in 2019, is newer than 82% of them.

  • NPI issued2019 · 82% of these records are older, 15% newer
  • In a Medicare fileYes · 3% of these records are
  • In the CMS Doctors and Clinicians fileYes · 6% of these records are
  • Graduated2020 · median 2010 among the 37 with a school on file
  • Record last updated2024 · 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.

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

  1. Christian Ambler, PH.D.Palo Alto, CA 943041558421255
  2. Joan Baran, PHDPalo Alto, CA 943041932263860
  3. Charmayne Boeving Allen, PHDPalo Alto, CA 943041952562290
  4. Cara Bohon, PH.D.Palo Alto, CA 943041831357631
  5. Allison Briscoe-Smith, PHDPalo Alto, CA 943041184843518
  6. Michelle Brown, PHDPalo Alto, CA 943041053497180
  7. Danielle Colborn, PHDPalo Alto, CA 943041386704609
  8. Sangeeta Dey, PSYDPalo Alto, CA 943041639293434

Common questions

What is Madison Sunnquist, PHD's NPI number?

Madison Sunnquist, PHD's National Provider Identifier (NPI) is 1083278923, issued on Apr 25, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Madison Sunnquist, PHD located?

The NPPES record lists a practice address at 725 Welch RD, Palo Alto, CA, 94304. Phone: (650) 497-8000. Providers update this record themselves, so call before visiting.

How can I verify Madison Sunnquist, PHD's license?

NPPES lists California license number PSY33080, 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. Medicare files from data.cms.gov. 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.