Eric D. Hamburg, MD
Internal Medicine Physician · Baraboo, WI
Eric D. Hamburg, MD is an internal medicine physician with a practice address in Baraboo, Wisconsin, and NPI 1922064518, issued on Apr 24, 2006. Check the license (Wisconsin 21708-020, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Eric D. Hamburg
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 21708-020 WI
Self-reported in NPPES; status is on the state search - Practice location
- 1700 Tuttle St, Baraboo, WI 53913
- Phone
- (608) 355-3800
- Enumerated
- Apr 24, 2006
- Record last updated
- Jan 22, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (608) 355-7001
- Medicaid ID
- 1922064518 WI
- Medicare enrollment
- Enrolled (PECOS I20051222000578); accepts Medicare assignment
- Medical or professional school
- Saint Louis University School Of Medicine, 1977
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,078 in Wisconsin → Look up another NPI →
Also registered at 1700 Tuttle St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Karen Ailsworth, MDPediatrics Physician1467418335
- Faith Anderson, MDStudent in an Organized Health Care Education/Training Program1265285225
- Anna Badtke, PA-CPhysician Assistant1184496176
- Ellen BergendahlPharmacist1457733669
- Matthew Brelie, APNPNurse Practitioner1568292373
- Faye BricklPharmacist1144481540
Verify Eric D. Hamburg in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 21708-020Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average internal medicine physician in 2024
155 Medicare Part D claims for 34 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.
Most prescribed
- Atorvastatin Calcium13 claims
- Metformin Hcl Er12 claims
- Allopurinol11 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 2 group practices
- Sauk Prairie Healthcare IncPrairie Du Sac, WI
- Ssm Health Care OF Wisconsin IncBaraboo, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Eric D. Hamburg among 2,078 internal medicine physician records in Wisconsin
Eric D. Hamburg, MD 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 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 46% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated1977 · median 2002 among the 1,098 with a school on file
- Record last updated2016 · 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).
Internal Medicine Physician providers in Wisconsin
There are 2,078 internal medicine physician records in Wisconsin.
All 2,078 in Wisconsin → Every provider in Baraboo → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Danny Sessler, MDBaraboo, WI 539131831154228
- Mesfin Abera, M.D.Beaver Dam, WI 539161972852390
- William Bull, MDBeaver Dam, WI 539161104511179
- Marc Gladden, D.O.Beaver Dam, WI 539161073802161
- Sharon Haase, MDBeaver Dam, WI 539161881661494
- Kenneth Kuehnl, MDBeaver Dam, WI 539161497721567
- Patrick Leonberger, D.O.Beaver Dam, WI 539161063823763
- Joel Miller, DOBeaver Dam, WI 539161679549604
Common questions
What is Eric D. Hamburg, MD's NPI number?
Eric D. Hamburg, MD's National Provider Identifier (NPI) is 1922064518, issued on Apr 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Eric D. Hamburg, MD located?
The NPPES record lists a practice address at 1700 Tuttle St, Baraboo, WI, 53913. Phone: (608) 355-3800. Providers update this record themselves, so call before visiting.
How can I verify Eric D. Hamburg, MD's license?
NPPES lists Wisconsin license number 21708-020, 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 Eric D. Hamburg, MD prescribe under Medicare Part D?
In 2024, Eric D. Hamburg, MD had 155 Medicare Part D claims for 34 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Eric D. Hamburg, MD's MIPS final score?
The 2023 MIPS final score is 100 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.