Mark S. Gedden, DO
Family Medicine Physician · Lancaster, WI
Mark S. Gedden, DO is a family medicine physician with a practice address in Lancaster, Wisconsin, and NPI 1619927985, issued on May 10, 2006. Check the license (Wisconsin 36127-021, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Mark S. Gedden
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 36127-021 WI
Self-reported in NPPES; status is on the state search - Practice location
- 507 S Monroe St, Lancaster, WI 53813
- Phone
- (608) 723-3293
- Enumerated
- May 10, 2006
- Record last updated
- Sep 17, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (608) 723-3281
- Medicaid ID
- 30064400 WI
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,765 in Wisconsin → Look up another NPI →
Also registered at 507 S Monroe St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mark S. Gedden in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 36127-021Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average family medicine physician in 2024
59 Medicare Part D claims, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
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 S. Gedden among 3,765 family medicine physician records in Wisconsin
Mark S. Gedden, DO is one of 3,765 family medicine physician records with a practice address in Wisconsin. 75% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 46% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2012 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
12 family medicine physician records list a practice address in Lancaster
They are 12 of the 141 NPPES records with a practice address in Lancaster, and 3,765 family medicine physician records in Wisconsin.
All 3,765 in Wisconsin → Every provider in Lancaster → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- David Casillas Plazola, MDLancaster, WI 538131598228314
- Karen Farris, DOLancaster, WI 538131568990083
- Erin Huebschman, MDLancaster, WI 538131790740223
- Eli James, MDLancaster, WI 538131669959441
- Sheirlie Lamantia, MDLancaster, WI 538131669676771
- Neil Martin, MDLancaster, WI 538131467891119
- Kimberly Perttu, DOLancaster, WI 538131730314253
- Eric Slane, MDLancaster, WI 538131457362238
Common questions
What is Mark S. Gedden, DO's NPI number?
Mark S. Gedden, DO's National Provider Identifier (NPI) is 1619927985, issued on May 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark S. Gedden, DO located?
The NPPES record lists a practice address at 507 S Monroe St, Lancaster, WI, 53813. Phone: (608) 723-3293. Providers update this record themselves, so call before visiting.
How can I verify Mark S. Gedden, DO's license?
NPPES lists Wisconsin license number 36127-021, 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 S. Gedden, DO prescribe under Medicare Part D?
In 2024, Mark S. Gedden, DO had 59 Medicare Part D claims; the average among family medicine physician prescribers was 3,544. 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.