Rebecca L. Lachenmaier, MD
Internal Medicine Physician · Des Moines, IA
Rebecca L. Lachenmaier, MD is an internal medicine physician with a practice address in Des Moines, Iowa, and NPI 1821058322, issued on Mar 27, 2006. Check the license (Iowa 35125, as entered in NPPES) on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Rebecca L. Lachenmaier
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 35125 IA
Self-reported in NPPES; status is on the state search - Practice location
- 1215 Pleasant St, Des Moines, IA 50309
- Phone
- (515) 241-4030
- Enumerated
- Mar 27, 2006
- Record last updated
- Nov 19, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (515) 241-4031
- Medicaid IDs
- 0416024 IA
1821058322 IA - Medicare enrollment
- Enrolled (PECOS I20090402000671); accepts Medicare assignment
- Medical or professional school
- University Of Washington School Of Medicine, 2000
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 871 in Iowa → Look up another NPI →
Also registered at 1215 Pleasant St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Rebecca L. Lachenmaier in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIowa Board of Medicine
Search for license 35125Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average internal medicine physician in 2024
302 Medicare Part D claims for 56 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 15 claims were for opioids.
Most prescribed
- Prednisone25 claims
- Pantoprazole Sodium17 claims
- Omeprazole13 claims
- Sertraline Hcl13 claims
- Simvastatin13 claims
- Levothyroxine Sodium12 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
- Central Iowa Hospital CorporationDes Moines, IA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Rebecca L. Lachenmaier among 871 internal medicine physician records in Iowa
Rebecca L. Lachenmaier, MD is one of 871 internal medicine physician records with a practice address in Iowa. 70% 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, 62% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileYes · 44% of these records are
- Graduated2000 · median 2008 among the 386 with a school on file
- Record last updated2012 · 46% 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 Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
226 internal medicine physician records list a practice address in Des Moines
They are 226 of the 5,538 NPPES records with a practice address in Des Moines, and 871 internal medicine physician records in Iowa.
All 871 in Iowa → Every provider in Des Moines → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Steven Bunge, MDDes Moines, IA 503091568460012
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- Steven Craig, MDDes Moines, IA 503091316924491
- Sean Cunningham, M.D.Des Moines, IA 503091023001559
- Carole Frier, D.O.Des Moines, IA 503091730151374
- Richard Gloor, M.D.Des Moines, IA 503091770577769
- Todd Jensen, M.D.Des Moines, IA 503091952396616
Common questions
What is Rebecca L. Lachenmaier, MD's NPI number?
Rebecca L. Lachenmaier, MD's National Provider Identifier (NPI) is 1821058322, issued on Mar 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Rebecca L. Lachenmaier, MD located?
The NPPES record lists a practice address at 1215 Pleasant St, Des Moines, IA, 50309. Phone: (515) 241-4030. Providers update this record themselves, so call before visiting.
How can I verify Rebecca L. Lachenmaier, MD's license?
NPPES lists Iowa license number 35125, as entered by the provider. Search the Iowa Board of Medicine at https://dial.iowa.gov/about-dial/boards-and-commissions/medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Rebecca L. Lachenmaier, MD prescribe under Medicare Part D?
In 2024, Rebecca L. Lachenmaier, MD had 302 Medicare Part D claims for 56 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.