NPPES file of Aug 9, 2026

Paul R. Pfeiffer, DO

Emergency Medicine Physician · Saint Louis, MO

Paul R. Pfeiffer, DO is an emergency medicine physician with a practice address in Saint Louis, Missouri, and NPI 1821024803, issued on Jun 23, 2006. Check the license (Missouri 106284, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1821024803
Name
Paul R. Pfeiffer
Credential
DO
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
106284 MO
Self-reported in NPPES; status is on the state search
Practice location
3015 N Ballas RD, Saint Louis, MO 63131
Phone
(314) 996-5225
Enumerated
Jun 23, 2006
Record last updated
Sep 18, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(314) 991-0943
Medicare enrollment
Enrolled (PECOS I20040809000923); accepts Medicare assignment
Medical or professional school
At Still University Of Health Sciences, College Of Osteo Med, Kirksville, 1994
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 Paul R. Pfeiffer 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 106284
    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

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64% fewer Medicare Part D claims than the average emergency medicine physician in 2024

81 Medicare Part D claims for 47 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 15 claims were for opioids.

  1. Paul Pfeiffer81
  2. Specialty average226

Most prescribed

  1. Ondansetron Hcl16 claims
  2. Cephalexin12 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.

Bills Medicare through one group practice

  1. Mercy Hospitals East CommunitiesSaint Louis, MO

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

Paul R. Pfeiffer among 1,405 emergency medicine physician records in Missouri

Paul R. Pfeiffer, DO is one of 1,405 emergency medicine physician records with a practice address in Missouri. 80% 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 8% of them.

  • NPI issued2006 · 8% of these records are older, 59% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated1994 · median 2012 among the 808 with a school on file
  • Record last updated2018 · 48% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

398 emergency medicine physician records list a practice address in Saint Louis

They are 398 of the 27,605 NPPES records with a practice address in Saint Louis, and 1,405 emergency medicine physician records in Missouri.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Gregory Beirne, DOSaint Louis, MO 631311891707097
  2. Cindy Bitter, M.D.Saint Louis, MO 631311083647556
  3. Candice Booth, MDSaint Louis, MO 631311851418883
  4. Mitchell Cordover, MDSaint Louis, MO 631311902978406
  5. Benedict D'Souza, MDSaint Louis, MO 631311811900574
  6. Jeffrey Davis, MDSaint Louis, MO 631311922183680
  7. Joseph Galkowski, DOSaint Louis, MO 631311194707612
  8. Grace Jones, DOSaint Louis, MO 631311992742928

Common questions

What is Paul R. Pfeiffer, DO's NPI number?

Paul R. Pfeiffer, DO's National Provider Identifier (NPI) is 1821024803, issued on Jun 23, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Paul R. Pfeiffer, DO located?

The NPPES record lists a practice address at 3015 N Ballas RD, Saint Louis, MO, 63131. Phone: (314) 996-5225. Providers update this record themselves, so call before visiting.

How can I verify Paul R. Pfeiffer, DO's license?

NPPES lists Missouri license number 106284, 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 Paul R. Pfeiffer, DO prescribe under Medicare Part D?

In 2024, Paul R. Pfeiffer, DO had 81 Medicare Part D claims for 47 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.