Peggy Wanner-Barjenbruch, MD
Internal Medicine Physician · Mexico, MO
Peggy Wanner-Barjenbruch, MD is an internal medicine physician with a practice address in Mexico, Missouri, and NPI 1326023185, issued on Dec 14, 2005. Check the license (Missouri R2F18, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Peggy Wanner-Barjenbruch
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- R2F18 MO
Self-reported in NPPES; status is on the state search - Practice location
- 600 Medical Park Dr, Mexico, MO 65265
- Phone
- (573) 581-8500
- Enumerated
- Dec 14, 2005
- Record last updated
- Oct 28, 2022
- Fax
- (573) 581-5397
- Medicaid ID
- 202222303 MO
- Medicare enrollment
- Enrolled (PECOS I20100305000085); accepts Medicare assignment
- Medical or professional school
- University Of Kansas School Of Med (Kc/Wich/Sal), 1982
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,604 in Missouri → Look up another NPI →
Also registered at 600 Medical Park Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sharon Carmignani, M.D.Internal Medicine Physician1952309890
- Joseph Cherri, D.O.Family Medicine Physician1144713082
- Ashlee Dougherty, PA-CMedical Physician Assistant1801416599
- Andrea Feger, FNP-BCFamily Nurse Practitioner1518530385
- Matthew Griffin, M.D.Internal Medicine Physician1457500704
- Michael Quinlan, M.D.Internal Medicine Physician1134122906
Verify Peggy Wanner-Barjenbruch 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 R2F18Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
6.1 times the Medicare Part D claims of the average internal medicine physician in 2024
19,461 Medicare Part D claims for 727 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 686 claims were for opioids.
Most prescribed
- Levothyroxine Sodium941 claims
- Lisinopril586 claims
- Amlodipine Besylate568 claims
- Omeprazole567 claims
- Atorvastatin Calcium538 claims
- Pantoprazole Sodium536 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.
Industry payments in 2024: $114.63
7 payments; by number, the most common kind was food and beverage; the largest payer was Otsuka America Pharmaceutical, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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.
Bills Medicare through 2 group practices
- Aging Well Health Care, LLCSaint Louis, MO
- Boone Physician Services LLCMexico, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Peggy Wanner-Barjenbruch among 2,604 internal medicine physician records in Missouri
Peggy Wanner-Barjenbruch, 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
- Graduated1982 · median 2006 among the 1,443 with a school on file
- Record last updated2022 · 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).
4 internal medicine physician records list a practice address in Mexico
They are 4 of the 221 NPPES records with a practice address in Mexico, and 2,604 internal medicine physician records in Missouri.
All 2,604 in Missouri → Every provider in Mexico → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Sharon Carmignani, M.D.Mexico, MO 652651952309890
- Matthew Griffin, M.D.Mexico, MO 652651457500704
- Michael Quinlan, M.D.Mexico, MO 652651134122906
- Justin Lamonda, MDMoberly, MO 652701669601357
- Syed Rashid, M.D.Moberly, MO 652701720058266
- Claire Smith, MDMoberly, MO 652701346745684
- Narayana Adusumilli, MDFulton, MO 652511891706115
- Frederick Wilson, MDFulton, MO 652511609806173
Common questions
What is Peggy Wanner-Barjenbruch, MD's NPI number?
Peggy Wanner-Barjenbruch, MD's National Provider Identifier (NPI) is 1326023185, issued on Dec 14, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Peggy Wanner-Barjenbruch, MD located?
The NPPES record lists a practice address at 600 Medical Park Dr, Mexico, MO, 65265. Phone: (573) 581-8500. Providers update this record themselves, so call before visiting.
How can I verify Peggy Wanner-Barjenbruch, MD's license?
NPPES lists Missouri license number R2F18, 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 Peggy Wanner-Barjenbruch, MD prescribe under Medicare Part D?
In 2024, Peggy Wanner-Barjenbruch, MD had 19,461 Medicare Part D claims for 727 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.