John Oldham, M.D.
Emergency Medicine Physician · Saint Louis, MO
John Oldham, M.D. is an emergency medicine physician with a practice address in Saint Louis, Missouri, and NPI 1659376390, issued on Jun 18, 2005. Check the license (Missouri R9476, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- John Oldham
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- R9476 MO
Self-reported in NPPES; status is on the state search - Practice location
- 11133 Dunn RD, Saint Louis, MO 63136
- Phone
- (314) 653-5663
- Enumerated
- Jun 18, 2005
- Entity
- Type 1 · individual
Also registered at 11133 Dunn RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Anna Arnold, PAPhysician Assistant1447882584
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- Jenny Bao, MDEmergency Medicine Physician1275947095
Verify John Oldham in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
Search for license R9476Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
79% fewer Medicare Part D claims than the average emergency medicine physician in 2024
73 Medicare Part D claims for 46 beneficiaries, against an average of 355 among the 49,029 providers of this specialty who prescribed in Part D. 14 claims were for opioids.
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: $18.66
1 payment, mostly food and beverage; the largest payer was Purdue Pharma L.P.. The 12,165 providers of this specialty with any payment received $1,340.71 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
One hospital or facility affiliation
- Pemiscot County Memorial HospitalHayti, MO · Acute Care Hospitals
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
363 emergency medicine physician records list a Saint Louis practice address
They are 363 of the 27,605 NPPES records with a Saint Louis practice address, and 1,352 emergency medicine physician records in Missouri.
All 363 in Saint Louis → All 1,352 in Missouri → Every provider in Saint Louis →
Other emergency medicine physician records in Missouri
- Robert Abbott, M.D.Saint Charles, MO1144269267
- Nagla Abdelmalek, M.D.Saint Louis, MO1003847591
- Donald Ables, MDKansas City, MO1346222189
- Enyo Ablordeppey, MDSaint Louis, MO1548468200
- Allison Abma, DOBranson, MO1033613302
- Sean Abraham, D.O.Columbia, MO1326368994
- Lajon Addison, D.O.Columbia, MO1104871854
- Opeolu Adeoye, MDSaint Louis, MO1023120623
- Lukuman Afuwape, M.DKansas City, MO1639494412
- Faqir Ahmad, MDSaint Louis, MO1487684957
Common questions
What is John Oldham, M.D.'s NPI number?
John Oldham, M.D.'s National Provider Identifier (NPI) is 1659376390, issued on Jun 18, 2005. An NPI identifies a provider in billing; it is not a license.
Where is John Oldham, M.D. located?
The NPPES record lists a practice address at 11133 Dunn RD, Saint Louis, MO, 63136. Phone: (314) 653-5663. Providers update this record themselves, so call before visiting.
How can I verify John Oldham, M.D.'s license?
NPPES lists Missouri license number R9476, 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 John Oldham, M.D. prescribe under Medicare Part D?
In 2024, John Oldham, M.D. had 73 Medicare Part D claims for 46 beneficiaries; the average among emergency medicine physician prescribers was 355. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.