NPPES file of Aug 9, 2026

Johnathan Schnee Fagg, MD

Pulmonary Disease Physician · Saint Louis, MO

Johnathan Schnee Fagg, MD is a pulmonary disease physician with a practice address in Saint Louis, Missouri, and NPI 1811427636, issued on Jun 14, 2017. Check the license (Missouri 2023032929, 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
1811427636
Name
Johnathan Schnee Fagg
Credential
MD
Primary taxonomy
Pulmonary Disease Physician 207RP1001X
License numbers
2023032929 MO
036153001 IL
Self-reported in NPPES; status is on the state search
Practice location
621 S New Ballas RD Ste 228A, Saint Louis, MO 63141
Phone
(314) 251-4968
Enumerated
Jun 14, 2017
Record last updated
Oct 5, 2023
Fax
(217) 545-4734
Medicare enrollment
Enrolled (PECOS I20231010000275); accepts Medicare assignment
Medical or professional school
University Of Iowa, Rj & L Carver College Of Medicine, 2017
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 621 S New Ballas RD Ste 228A

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

  1. Ann Bayne, NPAdult Health Nurse Practitioner1154873180
  2. Timothy Kell, NPAdult Health Nurse Practitioner1346415718
  3. Armin Krvavac, M.D.Critical Care Medicine (Internal Medicine) Physician1134482490

Verify Johnathan Schnee Fagg 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 2023032929
    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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42% fewer Medicare Part D claims than the average pulmonary disease physician in 2024

823 Medicare Part D claims for 198 beneficiaries, against an average of 1,425 among the 11,596 providers of this specialty who prescribed in Part D. Brand-name drugs were 52% of claims.

  1. Johnathan Fagg823
  2. Specialty average1,425

Most prescribed

  1. Albuterol Sulfate Hfa184 claims
  2. Trelegy Ellipta140 claims
  3. Prednisone51 claims
  4. Omeprazole45 claims
  5. Fluticasone Propionate41 claims
  6. Wixela Inhub29 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: $344.67

6 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 8,806 providers of this specialty with any payment received $5,159.88 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Johnathan Fagg$344.67
  2. Specialty average$5,159.88

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. Mercy Clinic Pulmonology - St. Louis, LLCSaint Louis, MO

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

Johnathan Schnee Fagg among 332 pulmonary disease physician records in Missouri

Johnathan Schnee Fagg, MD is one of 332 pulmonary disease physician records with a practice address in Missouri. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 89% of them.

  • NPI issued2017 · 89% of these records are older, 6% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 74% of these records are
  • Graduated2017 · median 2003 among the 246 with a school on file
  • Record last updated2023 · 50% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RP1001X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pulmonary Disease Physician providers in Missouri

There are 332 pulmonary disease physician records in Missouri.

The 8 pulmonary disease physician records with the nearest ZIP codes

  1. Adetayo Ademuyiwa, M.D.St Louis, MO 631411407944911
  2. Nadeem Ahmed, M.D.Saint Louis, MO 631411376546804
  3. Madhu Bajaj, MDSaint Louis, MO 631411073546107
  4. Michael Brischetto, MDSaint Louis, MO 631411780656058
  5. Dayton Dmello, MDSaint Louis, MO 631411699723890
  6. William Galli, D.O.Saint Louis, MO 631411386678670
  7. Thomas Hyers, M.D.Saint Louis, MO 631411629078985
  8. Craig Karpman, MDSaint Louis, MO 631411780849190

Common questions

What is Johnathan Schnee Fagg, MD's NPI number?

Johnathan Schnee Fagg, MD's National Provider Identifier (NPI) is 1811427636, issued on Jun 14, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Johnathan Schnee Fagg, MD located?

The NPPES record lists a practice address at 621 S New Ballas RD Ste 228A, Saint Louis, MO, 63141. Phone: (314) 251-4968. Providers update this record themselves, so call before visiting.

How can I verify Johnathan Schnee Fagg, MD's license?

NPPES lists Missouri license number 2023032929, 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 Johnathan Schnee Fagg, MD prescribe under Medicare Part D?

In 2024, Johnathan Schnee Fagg, MD had 823 Medicare Part D claims for 198 beneficiaries; the average among pulmonary disease physician prescribers was 1,425. 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.