Robert Elroy Kraetsch, MD
Hematology & Oncology Physician · Lake St Louis, MO
Robert Elroy Kraetsch, MD is a hematology & oncology physician with a practice address in Lake St Louis, Missouri, and NPI 1609839281, issued on Apr 6, 2006. Check the license (Missouri R6140, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Robert Elroy Kraetsch
- Credential
- MD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- R6140 MO
Self-reported in NPPES; status is on the state search - Practice location
- 400 Medical Plz, Lake St Louis, MO 63367
- Phone
- (636) 639-8600
- Enumerated
- Apr 6, 2006
- Record last updated
- Aug 27, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (636) 639-8666
- Medicaid ID
- 202536827 MO
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 237 in Missouri → Look up another NPI →
Also registered at 400 Medical Plz
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Christine BensonMedical Physician Assistant1093139859
- Katherine SchroerFamily Nurse Practitioner1700335999
- Jamee VesterAdult Health Nurse Practitioner1235532193
- John Wilkes, MDHematology & Oncology Physician1023071347
Verify Robert Elroy Kraetsch 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 R6140Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
50% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
435 Medicare Part D claims for 93 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. 44 claims were for opioids.
Most prescribed
- Levothyroxine Sodium33 claims
- Lisinopril23 claims
- Memantine Hcl20 claims
- Atorvastatin Calcium13 claims
- Lantus Solostar13 claims
- Albuterol Sulfate Hfa12 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.
Robert Elroy Kraetsch among 237 hematology & oncology physician records in Missouri
Robert Elroy Kraetsch, MD is one of 237 hematology & oncology physician records with a practice address in Missouri. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 11% of them.
- NPI issued2006 · 11% of these records are older, 56% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileNo · 71% of these records are
- Record last updated2012 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
5 hematology & oncology physician records list a practice address in Lake St Louis
They are 5 of the 264 NPPES records with a practice address in Lake St Louis, and 237 hematology & oncology physician records in Missouri.
All 237 in Missouri → Every provider in Lake St Louis → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Rigoberto De Jesus PizarroLake St Louis, MO 633671922551167
- Kristen Strasser, M.D.Lake St Louis, MO 633671497071971
- Thomas Tan, MDLake St Louis, MO 633671275528382
- John Wilkes, MDLake St Louis, MO 633671023071347
- Anna Roshal, MDSaint Peters, MO 633761124081799
- Arif Bari, M.D.Hannibal, MO 634011932188695
- Kevin Palka, MDHannibal, MO 634011689721482
- Jamshed Agha, MDSaint Charles, MO 633041720041395
Common questions
What is Robert Elroy Kraetsch, MD's NPI number?
Robert Elroy Kraetsch, MD's National Provider Identifier (NPI) is 1609839281, issued on Apr 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Robert Elroy Kraetsch, MD located?
The NPPES record lists a practice address at 400 Medical Plz, Lake St Louis, MO, 63367. Phone: (636) 639-8600. Providers update this record themselves, so call before visiting.
How can I verify Robert Elroy Kraetsch, MD's license?
NPPES lists Missouri license number R6140, 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 Robert Elroy Kraetsch, MD prescribe under Medicare Part D?
In 2024, Robert Elroy Kraetsch, MD had 435 Medicare Part D claims for 93 beneficiaries; the average among hematology & oncology physician prescribers was 877. 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.