NPPES file of Aug 9, 2026

Robert Byrne, M.D.

Internal Medicine Physician · Bridgeton, MO

Robert Byrne, M.D. is an internal medicine physician with a practice address in Bridgeton, Missouri, and NPI 1124009022, issued on Nov 8, 2005. Check the license (Missouri R1J78, 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
1124009022
Name
Robert Byrne
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
R1J78 MO
Self-reported in NPPES; status is on the state search
Practice location
12255 DE Paul Dr, Bridgeton, MO 63044
Phone
(314) 739-4166
Enumerated
Nov 8, 2005
Record last updated
Sep 21, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(314) 739-2485
Medicaid ID
202580312 MO
Medicare enrollment
Enrolled (PECOS I20071130000413); accepts Medicare assignment
Medical or professional school
University Of Missouri, Columbia School Of Medicine, 1985
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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8 nearest internal medicine physician records → All 2,604 in Missouri → Look up another NPI →

Also registered at 12255 DE Paul Dr

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

  1. Robert Bonsanti, M.D.Internal Medicine Physician1639143183
  2. Robert Brinkman, M.D.Internal Medicine Physician1942212378
  3. Kent Campbell, D.O.Family Medicine Physician1346213261
  4. Rochelle Catus, M.D.Obstetrics & Gynecology Physician1497747224
  5. Lynn Cone, PH.D.Clinical Psychologist1457470783
  6. Darcy Daniels, NPNurse Practitioner1922478726

Verify Robert Byrne 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 R1J78    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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4.1 times the Medicare Part D claims of the average internal medicine physician in 2024

12,903 Medicare Part D claims for 753 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 99 claims were for opioids.

  1. Robert Byrne12,903
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium939 claims
  2. Losartan Potassium528 claims
  3. Metoprolol Succinate489 claims
  4. Furosemide478 claims
  5. Amlodipine Besylate463 claims
  6. Levothyroxine Sodium398 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. Aging Well Health Care, LLCSaint Louis, MO

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

Robert Byrne among 2,604 internal medicine physician records in Missouri

Robert Byrne, M.D. is one of 2,604 internal medicine physician records with a practice address in Missouri. 77% 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, 92% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 55% of these records are
  • Graduated1985 · median 2006 among the 1,443 with a school on file
  • Record last updated2012 · 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 207R00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

31 internal medicine physician records list a practice address in Bridgeton

They are 31 of the 1,095 NPPES records with a practice address in Bridgeton, and 2,604 internal medicine physician records in Missouri.

All 2,604 in Missouri → Every provider in Bridgeton → Internal Medicine Physician nationwide →

The 8 internal medicine physician records with the nearest ZIP codes

  1. Robert Bonsanti, M.D.Bridgeton, MO 630441639143183
  2. Robert Brinkman, M.D.Bridgeton, MO 630441942212378
  3. Imran Hanafi, MDBridgeton, MO 630441588637516
  4. Khaled Hassan, MDBridgeton, MO 630441841303310
  5. Radhika Jaladi, MDBridgeton, MO 630441376516302
  6. Leslie Launch, M.D.Bridgeton, MO 630441346221090
  7. Donte McClary, MDBridgeton, MO 630441689647497
  8. Sean McLaughlin, M.D.Bridgeton, MO 630441023099785

Common questions

What is Robert Byrne, M.D.'s NPI number?

Robert Byrne, M.D.'s National Provider Identifier (NPI) is 1124009022, issued on Nov 8, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Robert Byrne, M.D. located?

The NPPES record lists a practice address at 12255 DE Paul Dr, Bridgeton, MO, 63044. Phone: (314) 739-4166. Providers update this record themselves, so call before visiting.

How can I verify Robert Byrne, M.D.'s license?

NPPES lists Missouri license number R1J78, 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 Robert Byrne, M.D. prescribe under Medicare Part D?

In 2024, Robert Byrne, M.D. had 12,903 Medicare Part D claims for 753 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.