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
- Record last updated
- Oct 6, 2011 (not updated in 15 years: call before relying on the address or phone)
- Medicaid IDs
- 201103728 MO
1659376390 MO - Medicare enrollment
- Enrolled (PECOS I20050817000979); accepts Medicare assignment
- Medical or professional school
- Washington University School Of Medicine, 1978
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,405 in Missouri → Look up another NPI →
Also registered at 11133 Dunn RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Faqir Ahmad, MDEmergency Medicine Physician1487684957
- Olaronke Akintola-Ogunremi, M.D.Anatomic Pathology & Clinical Pathology Physician1578545612
- Anah Ali, MDEmergency Medicine Physician1942597992
- Anna Arnold, PAPhysician Assistant1447882584
- Ola Bamimore, MDEmergency Medicine Physician1992947832
- 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
68% 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 226 among the 54,106 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: food and beverage; the largest payer was Purdue Pharma L.P. The 12,335 providers of this specialty with any payment received $953.79 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 affiliation
- Pemiscot County Memorial HospitalHayti, MO · Acute Care Hospitals
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov).
John Oldham among 1,405 emergency medicine physician records in Missouri
John Oldham, M.D. 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 92% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated1978 · median 2012 among the 808 with a school on file
- Record last updated2011 · 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.
All 1,405 in Missouri → Every provider in Saint Louis → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Faqir Ahmad, MDSaint Louis, MO 631361487684957
- Anah Ali, MDSaint Louis, MO 631361942597992
- Ola Bamimore, MDSaint Louis, MO 631361992947832
- Jenny Bao, MDSaint Louis, MO 631361275947095
- Leigh Chao, MDSaint Louis, MO 631361922081348
- Joshua Helm, MDSaint Louis, MO 631361356962476
- Nicholas Karlow, MDSaint Louis, MO 631361922669167
- Sivasankara Konala, MDSaint Louis, MO 631361538104229
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 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.