Leah L. Dietrich, MD
Medical Oncology Physician · La Crosse, WI
Leah L. Dietrich, MD is a medical oncology physician with a practice address in La Crosse, Wisconsin, and NPI 1578568762, issued on Jun 15, 2005. Check the license (Wisconsin 37982, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Leah L. Dietrich
- Credential
- MD
- Primary taxonomy
- Medical Oncology Physician 207RX0202X
- License number
- 37982 WI
Self-reported in NPPES; status is on the state search - Practice location
- 1836 South Ave, La Crosse, WI 54601
- Phone
- (608) 782-7300
- Enumerated
- Jun 15, 2005
- Record last updated
- Jun 2, 2015 (not updated in 11 years: call before relying on the address or phone)
- Medicaid ID
- 34007600 WI
- Medicare enrollment
- Enrolled (PECOS I20041016000135); accepts Medicare assignment
- Medical or professional school
- University Of Minnesota Medical School, 1995
- Entity
- Type 1 · individual
8 nearest medical oncology physician records → All 69 in Wisconsin → Look up another NPI →
Also registered at 1836 South Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Frank Aberger, MDGastroenterology Physician1396748711
- Bradley Abicht, DPMPodiatrist1962632166
- Carter Abicht, DOAnesthesiology Physician1932736642
- Grace AbichtCertified Registered Nurse Anesthetist1003651555
- Paul Abicht, CRNACertified Registered Nurse Anesthetist1528061843
- Mateen Abidi, M.DCardiovascular Disease Physician1730333980
Verify Leah L. Dietrich in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 37982Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2% fewer Medicare Part D claims than the average medical oncology physician in 2024
692 Medicare Part D claims for 188 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims.
Most prescribed
- Anastrozole374 claims
- Exemestane54 claims
- Alendronate Sodium33 claims
- Tamoxifen Citrate29 claims
- Letrozole23 claims
- Dexamethasone13 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 2 group practices
- Gundersen Clinic LtdLa Crosse, WI
- Gundersen Lutheran Medical Center IncLa Crosse, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Leah L. Dietrich among 69 medical oncology physician records in Wisconsin
Leah L. Dietrich, MD is one of 69 medical oncology physician records with a practice address in Wisconsin. 74% 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, 90% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated1995 · median 2001 among the 46 with a school on file
- Record last updated2015 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RX0202X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Medical Oncology Physician providers in Wisconsin
There are 69 medical oncology physician records in Wisconsin.
All 69 in Wisconsin → Every provider in La Crosse → Medical Oncology Physician nationwide →
The 8 medical oncology physician records with the nearest ZIP codes
- Sigurdur Bodvarsson, M.D.La Crosse, WI 546011669788337
- Frank Cadwell, MDLa Crosse, WI 546011306840996
- Alcee Jumonville, MDLa Crosse, WI 546011144226531
- Tezo Karedan, MDLa Crosse, WI 546011679887376
- Roger Kwong, MDLa Crosse, WI 546011740286855
- Agnes Smaradottir, MDLa Crosse, WI 546011609276500
- Robert Witte, MDLa Crosse, WI 546011437153046
- Mihailo Lalich, MDEau Claire, WI 547011891744652
Common questions
What is Leah L. Dietrich, MD's NPI number?
Leah L. Dietrich, MD's National Provider Identifier (NPI) is 1578568762, issued on Jun 15, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Leah L. Dietrich, MD located?
The NPPES record lists a practice address at 1836 South Ave, La Crosse, WI, 54601. Phone: (608) 782-7300. Providers update this record themselves, so call before visiting.
How can I verify Leah L. Dietrich, MD's license?
NPPES lists Wisconsin license number 37982, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Leah L. Dietrich, MD prescribe under Medicare Part D?
In 2024, Leah L. Dietrich, MD had 692 Medicare Part D claims for 188 beneficiaries; the average among medical oncology physician prescribers was 703. 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.