John Davis, MD PHD
Internal Medicine Physician · St Louis, MO
John Davis, MD PHD is an internal medicine physician with a practice address in St Louis, Missouri, and NPI 1306689823, issued on Jun 13, 2024. Check the license (Missouri 2024022103, 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 Davis
- Credential
- MD PHD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 2024022103 MO
Self-reported in NPPES; status is on the state search - Practice location
- 1 Barnes Jewish Hospital Plaza, St Louis, MO 63110
- Phone
- (314) 747-3000
- Enumerated
- Jun 13, 2024
- Entity
- Type 1 · individual
Also registered at 1 Barnes Jewish Hospital Plaza
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Kavita Patwardhan, MDInternal Medicine Physician1932942661
- Bibi Shazeeda Razak, M.D.Student in an Organized Health Care Education/Training Program1801533666
Verify John Davis 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 2024022103Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
89% fewer Medicare Part D claims than the average internal medicine physician in 2024
295 Medicare Part D claims for 42 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium19 claims
- Pantoprazole Sodium14 claims
- Amlodipine Besylate13 claims
- Fluticasone Propionate13 claims
- Losartan Potassium13 claims
- Lisinopril12 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.
63 internal medicine physician records list a St Louis practice address
They are 63 of the 1,420 NPPES records with a St Louis practice address, and 3,392 internal medicine physician records in Missouri.
All 63 in St Louis → All 3,392 in Missouri → Every provider in St Louis →
Other internal medicine physician records in Missouri
- Betty Abban, M.D.Springfield, MO1063893162
- Amer Abbas, MDSaint Louis, MO1508480666
- Marghoob Abbas, M.D.St Joseph, MO1588603781
- Muhammad Khalid Abbas, M.D.Springfield, MO1447877089
- Sundas Abbas, MDRichmond Heights, MO1649790486
- Hajira Abbasi, DOSaint Louis, MO1194036947
- Mohammed Abbasi, MDSaint Louis, MO1497097083
- Catey Abbott, DOSaint Louis, MO1699355347
- David Abbott, MDRichmond Heights, MO1568448850
- Ramzi Abboud, MDSaint Louis, MO1649684200
Common questions
What is John Davis, MD PHD's NPI number?
John Davis, MD PHD's National Provider Identifier (NPI) is 1306689823, issued on Jun 13, 2024. An NPI identifies a provider in billing; it is not a license.
Where is John Davis, MD PHD located?
The NPPES record lists a practice address at 1 Barnes Jewish Hospital Plaza, St Louis, MO, 63110. Phone: (314) 747-3000. Providers update this record themselves, so call before visiting.
How can I verify John Davis, MD PHD's license?
NPPES lists Missouri license number 2024022103, 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 Davis, MD PHD prescribe under Medicare Part D?
In 2024, John Davis, MD PHD had 295 Medicare Part D claims for 42 beneficiaries; the average among internal medicine physician prescribers was 2,785. 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.