Mark Reichelderfer, MD
Gastroenterology Physician · Madison, WI
Mark Reichelderfer, MD is a gastroenterology physician with a practice address in Madison, Wisconsin, and NPI 1699736512, issued on Mar 30, 2006. Check the license (Wisconsin 21068, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Mark Reichelderfer
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 21068 WI
Self-reported in NPPES; status is on the state search - Practice location
- 513 Ozark Trl, Madison, WI 53705
- Phone
- (608) 238-8235
- Enumerated
- Mar 30, 2006
- Record last updated
- Dec 29, 2025
- Medicare enrollment
- Enrolled (PECOS I20100310000378); may accept Medicare assignment
- Medical or professional school
- Columbia University College Of Physicians And Surgeons, 1974
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 340 in Wisconsin → Look up another NPI →
Verify Mark Reichelderfer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 21068Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
62% fewer Medicare Part D claims than the average gastroenterology physician in 2024
305 Medicare Part D claims for 56 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.
Most prescribed
- Omeprazole26 claims
- Loperamide23 claims
- Diphenoxylate-Atropine20 claims
- Balsalazide Disodium19 claims
- Dicyclomine Hcl16 claims
- Ciprofloxacin Hcl14 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.
Mark Reichelderfer among 340 gastroenterology physician records in Wisconsin
Mark Reichelderfer, MD is one of 340 gastroenterology physician records with a practice address in Wisconsin. 83% 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 7% of them.
- NPI issued2006 · 7% of these records are older, 44% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated1974 · median 2003 among the 239 with a school on file
- Record last updated2025 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Wisconsin
There are 340 gastroenterology physician records in Wisconsin.
All 340 in Wisconsin → Every provider in Madison → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Antonio Bosch, MDMadison, WI 537051295743656
- Freddy Caldera, D.O.Madison, WI 537051255594537
- Matthew Caldis, M.D., M.S.Madison, WI 537051922461029
- Rodrigo Castillo, MDMadison, WI 537051811007305
- Ian Grimes, M.D.Madison, WI 537051275737165
- Megan LutzMadison, WI 537051306232863
- Gregory Nelligan, M.D.Madison, WI 537051205924842
- Vinay Patel, M.D.Madison, WI 537051639583750
Common questions
What is Mark Reichelderfer, MD's NPI number?
Mark Reichelderfer, MD's National Provider Identifier (NPI) is 1699736512, issued on Mar 30, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark Reichelderfer, MD located?
The NPPES record lists a practice address at 513 Ozark Trl, Madison, WI, 53705. Phone: (608) 238-8235. Providers update this record themselves, so call before visiting.
How can I verify Mark Reichelderfer, MD's license?
NPPES lists Wisconsin license number 21068, 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 Mark Reichelderfer, MD prescribe under Medicare Part D?
In 2024, Mark Reichelderfer, MD had 305 Medicare Part D claims for 56 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.