NPPES file of Aug 9, 2026

Alan Robert Felthous, MD

Psychiatry Physician · Chester, IL

Alan Robert Felthous, MD is a psychiatry physician with a practice address in Chester, Illinois, and NPI 1164410502, issued on Oct 10, 2005. Check the license on the Illinois Department of Financial and Professional Regulation; 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
1164410502
Name
Alan Robert Felthous
Credential
MD
Primary taxonomy
Psychiatry Physician 2084P0800X
Practice location
1315 Lehmen Dr, Chester, IL 62233
Phone
(618) 826-4571
Enumerated
Oct 10, 2005
Record last updated
Jul 13, 2026
Fax
(618) 826-3229
Medicare enrollment
Enrolled (PECOS I20070420000496); accepts Medicare assignment
Medical or professional school
University Of Louisville School Of Medicine, 1971
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 1315 Lehmen Dr

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

  1. Anne Andersen, M.D.Emergency Medicine Physician1700087475
  2. Susan Carr, MDFamily Medicine Physician1982693925
  3. Prem Dua, MDPediatrics Physician1952399396
  4. Richard Johnson, PHDPsychologist1588699847
  5. Elaine Moy, PHARM.D.Pharmacist1679759344
  6. Cailee Mueller, DNPPsychiatric/Mental Health Nurse Practitioner1861964215

Verify Alan Robert Felthous in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional RegulationCheck 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
Open the Illinois license search

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The practice group's MIPS final score for 2023 (Medicare payment program): 81.6 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 score76.1
  2. Costout of 100 · 30%54.3
  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. Ssm Health Care GroupSaint Louis, MO

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

Alan Robert Felthous among 2,147 psychiatry physician records in Illinois

Alan Robert Felthous, MD is one of 2,147 psychiatry physician records with a practice address in Illinois. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 95% newer
  • In a Medicare fileYes · 69% of these records are
  • In the CMS Doctors and Clinicians fileYes · 41% of these records are
  • Graduated1971 · median 2004 among the 877 with a school on file
  • Record last updated2026 · 53% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

4 psychiatry physician records list a practice address in Chester

They are 4 of the 66 NPPES records with a practice address in Chester, and 2,147 psychiatry physician records in Illinois.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Prithviraj Thakur, MDChester, IL 622331801884226
  2. Percival Tiongson, M.D.Chester, IL 622331871772913
  3. Nageswararao Vallabhaneni, MD PSYCHIATRISTChester, IL 622331215925656
  4. Jesse Chang, DOScott Air Force Base, IL 622251881288959
  5. Jacqueline Aregood, MDBelleville, IL 622231154302115
  6. Jeffrey Chalfant, DOBelleville, IL 622231811935166
  7. Randy Jung, M.D.Belleville, IL 622201205917176
  8. Warren Fournier, MDFairview Heights, IL 622081992770580

Common questions

What is Alan Robert Felthous, MD's NPI number?

Alan Robert Felthous, MD's National Provider Identifier (NPI) is 1164410502, issued on Oct 10, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Alan Robert Felthous, MD located?

The NPPES record lists a practice address at 1315 Lehmen Dr, Chester, IL, 62233. Phone: (618) 826-4571. Providers update this record themselves, so call before visiting.

How can I verify Alan Robert Felthous, MD's license?

Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

What is Alan Robert Felthous, MD's MIPS final score?

The 2023 MIPS final score is 81.6 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.