NPPES file of Aug 9, 2026

David J. Callahan, MD

Neurology with Special Qualifications in Child Neurology Physician · Saint Louis, MO

David J. Callahan, MD is a neurology with special qualifications in child neurology physician with a practice address in Saint Louis, Missouri, and NPI 1902992696, issued on Oct 4, 2006. Check the license (Missouri R6J44, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1902992696
Name
David J. Callahan
Credential
MD
Primary taxonomy
Neurology with Special Qualifications in Child Neurology Physician 2084N0402X
License number
R6J44 MO
Self-reported in NPPES; status is on the state search
Practice location
4921 Parkview PL, Saint Louis, MO 63110
Phone
(314) 362-1408
Enumerated
Oct 4, 2006
Record last updated
Apr 15, 2025
Fax
(314) 454-2523
Medicaid ID
200000451 MO
Medicare enrollment
Enrolled (PECOS I20111212000411); accepts Medicare assignment
Medical or professional school
Washington University School Of Medicine, 1986
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 4921 Parkview PL

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

  1. Mohammed Abbasi, MDPulmonary Disease Physician1497097083
  2. Helen Adams, AGNPGerontology Nurse Practitioner1730836776
  3. Muyibat Adelani, MDAdult Reconstructive Orthopaedic Surgery Physician1396908042
  4. Foluso Ademuyiwa, MDMedical Oncology Physician1083875538
  5. Syed Adil, MDAdult Reconstructive Orthopaedic Surgery Physician1467942953
  6. Homaa Ahmad, MDCardiovascular Disease Physician1477635092

Verify David J. Callahan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
    Search for license R6J44
    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 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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49% fewer Medicare Part D claims than the average neurology with special qualifications in child neurology physician in 2024

141 Medicare Part D claims, against an average of 278 among the 900 providers of this specialty who prescribed in Part D.

  1. David Callahan141
  2. Specialty average278

Most prescribed

  1. Clobazam18 claims
  2. Clonidine Hcl14 claims
  3. Dexmethylphenidate Hcl Er12 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.

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).

Industry payments in 2024: $15.00

1 payment: food and beverage; the largest payer was Abbvie Inc. The 1,195 providers of this specialty with any payment received $5,568.05 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. David Callahan$15.00
  2. Specialty average$5,568.05

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

Bills Medicare through one group practice

  1. Washington UniversitySaint Louis, MO

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

David J. Callahan among 86 neurology with special qualifications in child neurology physician records in Missouri

David J. Callahan, MD is one of 86 neurology with special qualifications in child neurology physician records with a practice address in Missouri. 63% 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 2% of them.

  • NPI issued2006 · 2% of these records are older, 71% newer
  • In a Medicare fileYes · 63% of these records are
  • In the CMS Doctors and Clinicians fileYes · 31% of these records are
  • Graduated1986 · median 2006 among the 27 with a school on file
  • Record last updated2025 · 28% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0402X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neurology with Special Qualifications in Child Neurology Physician providers in Missouri

There are 86 neurology with special qualifications in child neurology physician records in Missouri.

The 8 neurology with special qualifications in child neurology physician records with the nearest ZIP codes

  1. William Dodson, MDSaint Louis, MO 631101275559593
  2. Nico Dosenbach, MDSaint Louis, MO 631101518120690
  3. Rafael Galindo, MDSaint Louis, MO 631101992973580
  4. Kristin Guilliams, MDSaint Louis, MO 631101831376482
  5. David Hinkle, M.D.Saint Louis, MO 631101235155136
  6. Douglas Larsen, MDSaint Louis, MO 631101669635181
  7. Jeffrey Neil, MDSaint Louis, MO 631101699793158
  8. Sheel Pathak, MDSaint Louis, MO 631101184887341

Common questions

What is David J. Callahan, MD's NPI number?

David J. Callahan, MD's National Provider Identifier (NPI) is 1902992696, issued on Oct 4, 2006. An NPI identifies a provider in billing; it is not a license.

Where is David J. Callahan, MD located?

The NPPES record lists a practice address at 4921 Parkview PL, Saint Louis, MO, 63110. Phone: (314) 362-1408. Providers update this record themselves, so call before visiting.

How can I verify David J. Callahan, MD's license?

NPPES lists Missouri license number R6J44, as entered by the provider. Search the Missouri Board of Registration for the Healing Arts at https://www.fsmb.org/contact-a-state-medical-board/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does David J. Callahan, MD prescribe under Medicare Part D?

In 2024, David J. Callahan, MD had 141 Medicare Part D claims; the average among neurology with special qualifications in child neurology physician prescribers was 278. Part D covers Medicare prescriptions only.

What is David J. Callahan, MD'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.