NPPES file of Aug 9, 2026

Stephen L. Ristvedt, PHD

Psychologist · Saint Louis, MO

Stephen L. Ristvedt, PHD is a psychologist with a practice address in Saint Louis, Missouri, and NPI 1528003258, issued on Jun 17, 2006. Check the license (Missouri R0283, as entered in NPPES) with the Missouri board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1528003258
Name
Stephen L. Ristvedt
Credential
PHD
Primary taxonomy
Psychologist 103T00000X
License number
R0283 MO
Self-reported in NPPES; status is on the state search
Practice location
3015 N Ballas RD, Saint Louis, MO 63131
Phone
(314) 996-7200
Enumerated
Jun 17, 2006
Record last updated
Apr 17, 2025
Fax
(314) 996-7376
Medicaid ID
493726103 MO
Medicare enrollment
Enrolled (PECOS I20060825000333); 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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Also registered at 3015 N Ballas RD

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

  1. Kimberly Abeln, CRNACertified Registered Nurse Anesthetist1851566970
  2. Nancy Adams, FNP - BCFamily Nurse Practitioner1497280796
  3. Emmanuel Agyemang, MDHospitalist Physician1235831975
  4. Ayaz Ahmad, MDInternal Medicine Physician1629573142
  5. Bazgha AhmadHospitalist Physician1841517158
  6. Nusrat Ahmad, MDObstetrics & Gynecology Physician1114966348

Verify Stephen L. Ristvedt in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Missouri board licenses this profession
    Search for license R0283
    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 Missouri 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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The practice group's MIPS final score for 2023 (Medicare payment program): 79.3 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score71.5
  2. Costout of 100 · 30%59.5
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Washington UniversitySt Louis, MO

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

Stephen L. Ristvedt among 579 psychologist records in Missouri

Stephen L. Ristvedt, PHD is one of 579 psychologist records with a practice address in Missouri. 13% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.

  • NPI issued2006 · 7% of these records are older, 58% newer
  • In a Medicare fileYes · 13% of these records are
  • In the CMS Doctors and Clinicians fileYes · 20% of these records are
  • Graduated1989 · median 1999 among the 114 with a school on file
  • Record last updated2025 · 68% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103T00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Psychologist providers in Missouri

There are 579 psychologist records in Missouri.

The 8 psychologist records with the nearest ZIP codes

  1. Henry Hummert, PH DSaint Louis, MO 631311891703435
  2. Danielle Mosley, PSYDSaint Louis, MO 631311588913784
  3. Cheryl Richards, PSYDSaint Louis, MO 631311326074253
  4. Christine Schutz, PHDSaint Louis, MO 631311790833945
  5. Anthony Udziela, PHDSaint Louis, MO 631311194826578
  6. Jennifer Vorachack, PSY.D.Saint Louis, MO 631311710217666
  7. Nancy Williger, PH DSaint Louis, MO 631311023026655
  8. Ronald Dicker, PH.D.Saint Louis, MO 631321336354802

Common questions

What is Stephen L. Ristvedt, PHD's NPI number?

Stephen L. Ristvedt, PHD's National Provider Identifier (NPI) is 1528003258, issued on Jun 17, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Stephen L. Ristvedt, PHD located?

The NPPES record lists a practice address at 3015 N Ballas RD, Saint Louis, MO, 63131. Phone: (314) 996-7200. Providers update this record themselves, so call before visiting.

How can I verify Stephen L. Ristvedt, PHD's license?

NPPES lists Missouri license number R0283, as entered by the provider. Search the Missouri board that licenses this profession; the NPPES record confirms identity only.

What is Stephen L. Ristvedt, PHD's MIPS final score?

The 2023 MIPS final score is 79.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.