NPPES file of Aug 9, 2026

Jacquelyn Hall-Davis, M.D.

Child & Adolescent Psychiatry Physician · O Fallon, IL

Jacquelyn Hall-Davis, M.D. is a child & adolescent psychiatry physician with a practice address in O Fallon, Illinois, and NPI 1619042124, issued on Nov 21, 2006. Check the license (Illinois 036080270, as entered in NPPES) 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1619042124
Name
Jacquelyn Hall-Davis
Credential
M.D.
Primary taxonomy
Child & Adolescent Psychiatry Physician 2084P0804X
License number
036080270 IL
Self-reported in NPPES; status is on the state search
Practice location
1669 Windham Way Suite B, O Fallon, IL 62269
Phone
(618) 622-9240
Enumerated
Nov 21, 2006
Record last updated
Feb 12, 2025
Fax
(618) 622-9241
Medicaid ID
036080270 IL
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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Verify Jacquelyn Hall-Davis in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 036080270
    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
Open the Illinois license search

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49% fewer Medicare Part D claims than the average child & adolescent psychiatry physician in 2024

256 Medicare Part D claims for 12 beneficiaries, against an average of 504 among the 3,545 providers of this specialty who prescribed in Part D.

  1. Jacquelyn Hall-Davis256
  2. Specialty average504

Most prescribed

  1. Quetiapine Fumarate38 claims
  2. Sertraline Hcl21 claims
  3. Buspirone Hcl20 claims
  4. Citalopram Hbr18 claims
  5. Carbamazepine Er16 claims
  6. Olanzapine16 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $112.04

6 payments; by number, the most common kind was food and beverage; the largest payer was Tris Pharma Inc. The 1,578 providers of this specialty with any payment received $1,427.96 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Jacquelyn Hall-Davis$112.04
  2. Specialty average$1,427.96

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Jacquelyn Hall-Davis among 267 child & adolescent psychiatry physician records in Illinois

Jacquelyn Hall-Davis, M.D. is one of 267 child & adolescent psychiatry physician records with a practice address in Illinois. 61% 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 3% of them.

  • NPI issued2006 · 3% of these records are older, 65% newer
  • In a Medicare fileYes · 61% of these records are
  • In the CMS Doctors and Clinicians fileNo · 36% of these records are
  • Record last updated2025 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0804X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Child & Adolescent Psychiatry Physician providers in Illinois

There are 267 child & adolescent psychiatry physician records in Illinois.

The 8 child & adolescent psychiatry physician records with the nearest ZIP codes

  1. Schvon Cummings, M.D.Quincy, IL 623011225297807
  2. Mary Dobbins, M.D.Quincy, IL 623011235186297
  3. Lanny Stiles, DOQuincy, IL 623011508951781
  4. Kalyani Gavini, M.D.Centreville, IL 622071730214206
  5. Rahul Bansal, MDMaryville, IL 620621841407160
  6. Mariyah Hussain, MDDecatur, IL 625261285083931
  7. Amal Asiri, MBBS, MDSpringfield, IL 627011376822486
  8. Daniel BoederSpringfield, IL 627011669039822

Common questions

What is Jacquelyn Hall-Davis, M.D.'s NPI number?

Jacquelyn Hall-Davis, M.D.'s National Provider Identifier (NPI) is 1619042124, issued on Nov 21, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Jacquelyn Hall-Davis, M.D. located?

The NPPES record lists a practice address at 1669 Windham Way Suite B, O Fallon, IL, 62269. Phone: (618) 622-9240. Providers update this record themselves, so call before visiting.

How can I verify Jacquelyn Hall-Davis, M.D.'s license?

NPPES lists Illinois license number 036080270, as entered by the provider. 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.

How much does Jacquelyn Hall-Davis, M.D. prescribe under Medicare Part D?

In 2024, Jacquelyn Hall-Davis, M.D. had 256 Medicare Part D claims for 12 beneficiaries; the average among child & adolescent psychiatry physician prescribers was 504. Part D covers Medicare prescriptions 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.