Samuel G. Poser, M.D.
Internal Medicine Physician · Columbus, WI
Samuel G. Poser, M.D. is an internal medicine physician with a practice address in Columbus, Wisconsin, and NPI 1346243821, issued on May 27, 2005. Check the license (Wisconsin 27371 020, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Samuel G. Poser
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 27371 020 WI
Self-reported in NPPES; status is on the state search - Practice location
- 635 Park Ave, Columbus, WI 53925
- Phone
- (920) 623-5000
- Enumerated
- May 27, 2005
- Record last updated
- Jan 12, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (920) 623-0519
- Medicaid ID
- 30675800 WI
- Medicare enrollment
- Enrolled (PECOS I20080416000251); accepts Medicare assignment
- Medical or professional school
- University Of Wisconsin School Of Medicine, 1982
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,078 in Wisconsin → Look up another NPI →
Also registered at 635 Park Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rolf Poser, M.D.Cardiovascular Disease Physician1013910645
Verify Samuel G. Poser in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 27371 020Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.6 times the Medicare Part D claims of the average internal medicine physician in 2024
8,205 Medicare Part D claims for 782 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 447 claims were for opioids.
Most prescribed
- Atorvastatin Calcium387 claims
- Amlodipine Besylate282 claims
- Metoprolol Tartrate221 claims
- Lisinopril215 claims
- Potassium Chloride213 claims
- Furosemide206 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.
Industry payments in 2024: $932.43
61 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Poser Clinic LLCColumbus, WI
- Prairie Ridge Health IncColumbus, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Samuel G. Poser among 2,078 internal medicine physician records in Wisconsin
Samuel G. Poser, M.D. is one of 2,078 internal medicine physician records with a practice address in Wisconsin. 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 91% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated1982 · median 2002 among the 1,098 with a school on file
- Record last updated2011 · 55% 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 Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
4 internal medicine physician records list a practice address in Columbus
They are 4 of the 138 NPPES records with a practice address in Columbus, and 2,078 internal medicine physician records in Wisconsin.
All 2,078 in Wisconsin → Every provider in Columbus → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Bruce Kraus, M.D.Columbus, WI 539251659338150
- Ernest Lee, M.D.Columbus, WI 539251902034812
- Asghar Marwat, M.D.Columbus, WI 539251942651955
- Mesfin Abera, M.D.Beaver Dam, WI 539161972852390
- William Bull, MDBeaver Dam, WI 539161104511179
- Alicia-Maria Fernandez, D.O.Friendship, WI 539341407043458
- Marc Gladden, D.O.Beaver Dam, WI 539161073802161
- Sharon Haase, MDBeaver Dam, WI 539161881661494
Common questions
What is Samuel G. Poser, M.D.'s NPI number?
Samuel G. Poser, M.D.'s National Provider Identifier (NPI) is 1346243821, issued on May 27, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Samuel G. Poser, M.D. located?
The NPPES record lists a practice address at 635 Park Ave, Columbus, WI, 53925. Phone: (920) 623-5000. Providers update this record themselves, so call before visiting.
How can I verify Samuel G. Poser, M.D.'s license?
NPPES lists Wisconsin license number 27371 020, 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 Samuel G. Poser, M.D. prescribe under Medicare Part D?
In 2024, Samuel G. Poser, M.D. had 8,205 Medicare Part D claims for 782 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.