John Edward Hartweger, MD
Internal Medicine Physician · Saint Peters, MO
John Edward Hartweger, MD is an internal medicine physician with a practice address in Saint Peters, Missouri, and NPI 1366443756, issued on Aug 9, 2005. Check the license (Missouri 2001032147, 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 Edward Hartweger
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 2001032147 MO
Self-reported in NPPES; status is on the state search - Practice location
- 10 Hospital Dr, Saint Peters, MO 63376
- Phone
- (314) 317-0600
- Enumerated
- Aug 9, 2005
- Record last updated
- May 8, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (314) 317-0606
- Medicaid IDs
- 1366443756 IL
208450809 MO - Medicare enrollment
- Enrolled (PECOS I20100817001345); accepts Medicare assignment
- Medical or professional school
- University Of Missouri, Kansas City, School Of Medicine, 1999
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,604 in Missouri → Look up another NPI →
Also registered at 10 Hospital Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Erika Anderson, P.A.Physician Assistant1417258138
- Damian Baalmann, MDEmergency Medicine Physician1508203829
- Alyssa Bell, PAPhysician Assistant1467193656
- Brian Bennett, CRNACertified Registered Nurse Anesthetist1275195281
- Julie Boschert, AGNPGerontology Nurse Practitioner1578197505
- Lydia CameronSpeech-Language Pathologist1548849003
Verify John Edward Hartweger 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 2001032147Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
74% fewer Medicare Part D claims than the average internal medicine physician in 2024
832 Medicare Part D claims for 370 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. 59 claims were for opioids.
Most prescribed
- Levofloxacin54 claims
- Prednisone52 claims
- Amlodipine Besylate45 claims
- Furosemide44 claims
- Cephalexin31 claims
- Metoprolol Tartrate29 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
- Southeastern Physician Services PCSaint Peters, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Edward Hartweger among 2,604 internal medicine physician records in Missouri
John Edward Hartweger, MD 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
- Graduated1999 · median 2006 among the 1,443 with a school on file
- Record last updated2014 · 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).
13 internal medicine physician records list a practice address in Saint Peters
They are 13 of the 1,259 NPPES records with a practice address in Saint Peters, and 2,604 internal medicine physician records in Missouri.
All 2,604 in Missouri → Every provider in Saint Peters → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Romulo Fajatin, MDSt Peters, MO 633761265497051
- Edward Kunst, MDSaint Peters, MO 633761467428672
- Behrad Majidi, M.D.Saint Peters, MO 633761295765386
- Zinnat Meghjee, D.O.Saint Peters, MO 633761639186398
- Gary Meltz, MDSaint Peters, MO 633761720086036
- Dion Miranda, D.O.Saint Peters, MO 633761972751097
- Prajakta Mungikar, MDSaint Peters, MO 633761790109247
- Felipe Orellana, MDSt Peters, MO 633761922071877
Common questions
What is John Edward Hartweger, MD's NPI number?
John Edward Hartweger, MD's National Provider Identifier (NPI) is 1366443756, issued on Aug 9, 2005. An NPI identifies a provider in billing; it is not a license.
Where is John Edward Hartweger, MD located?
The NPPES record lists a practice address at 10 Hospital Dr, Saint Peters, MO, 63376. Phone: (314) 317-0600. Providers update this record themselves, so call before visiting.
How can I verify John Edward Hartweger, MD's license?
NPPES lists Missouri license number 2001032147, 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 Edward Hartweger, MD prescribe under Medicare Part D?
In 2024, John Edward Hartweger, MD had 832 Medicare Part D claims for 370 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.
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.