NPPES file of Aug 9, 2026

Gregory Joseph Bailey, M.D.

Neurological Surgery Physician · Saint Louis, MO

Gregory Joseph Bailey, M.D. is a neurological surgery physician with a practice address in Saint Louis, Missouri, and NPI 1457351926, issued on Jul 27, 2005. Check the license (Missouri 36457, 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
1457351926
Name
Gregory Joseph Bailey
Credential
M.D.
Primary taxonomy
Neurological Surgery Physician 207T00000X
License number
36457 MO
Self-reported in NPPES; status is on the state search
Practice location
1035 Bellevue Ave Ste 500, Saint Louis, MO 63117
Phone
(314) 925-4773
Enumerated
Jul 27, 2005
Record last updated
Aug 3, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(314) 925-4775
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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Also registered at 1035 Bellevue Ave Ste 500

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

  1. Trevor Axford, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1528094224
  2. Loretta Colvin, APRN, BCAcute Care Nurse Practitioner1235135237
  3. Jessica DickmanFamily Nurse Practitioner1669940656
  4. Lamice El-Kholy, MDEndocrinology, Diabetes & Metabolism Physician1124139845
  5. Vikas Kumar, MDNeurology Physician1194928440
  6. William Ogle, M.D.Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician1205925690

Verify Gregory Joseph Bailey 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 36457
    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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91% fewer Medicare Part D claims than the average neurological surgery physician in 2024

15 Medicare Part D claims, against an average of 172 among the 4,378 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Gregory Bailey15
  2. Specialty average172

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.

Gregory Joseph Bailey among 195 neurological surgery physician records in Missouri

Gregory Joseph Bailey, M.D. is one of 195 neurological surgery physician records with a practice address in Missouri. 83% 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, 93% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileNo · 67% of these records are
  • Record last updated2012 · 42% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207T00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neurological Surgery Physician providers in Missouri

There are 195 neurological surgery physician records in Missouri.

The 8 neurological surgery physician records with the nearest ZIP codes

  1. William Sprich, M.D.Saint Louis, MO 631171114950870
  2. Joseph Yazdi, MDSaint Louis, MO 631171972500981
  3. Samuel BaumSaint Louis, MO 631101679411813
  4. Megan Bauman Graves, MDSaint Louis, MO 631101376431056
  5. Andrew Coxon, MD, MSCISaint Louis, MO 631101437889664
  6. Riley Driscoll, MDSaint Louis, MO 631101497584049
  7. Ashley Dunbar, MDSaint Louis, MO 631101912575713
  8. Diogo GarciaSaint Louis, MO 631101477399616

Common questions

What is Gregory Joseph Bailey, M.D.'s NPI number?

Gregory Joseph Bailey, M.D.'s National Provider Identifier (NPI) is 1457351926, issued on Jul 27, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Gregory Joseph Bailey, M.D. located?

The NPPES record lists a practice address at 1035 Bellevue Ave Ste 500, Saint Louis, MO, 63117. Phone: (314) 925-4773. Providers update this record themselves, so call before visiting.

How can I verify Gregory Joseph Bailey, M.D.'s license?

NPPES lists Missouri license number 36457, 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 Gregory Joseph Bailey, M.D. prescribe under Medicare Part D?

In 2024, Gregory Joseph Bailey, M.D. had 15 Medicare Part D claims; the average among neurological surgery physician prescribers was 172. 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.