Mark Avery Fuller, MD
Internal Medicine Physician · Bayfield, WI
Mark Avery Fuller, MD is an internal medicine physician with a practice address in Bayfield, Wisconsin, and NPI 1124055561, issued on Jun 28, 2006. Check the license (Wisconsin 1901-320, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Mark Avery Fuller
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 1901-320 WI
4301093004 MI
Self-reported in NPPES; status is on the state search - Practice location
- 36745 Aiken RD, Bayfield, WI 54814
- Phone
- (715) 779-3707
- Enumerated
- Jun 28, 2006
- Record last updated
- Jun 21, 2022
- Fax
- (715) 779-3362
- Medicaid ID
- 3536500 WI
- Medicare enrollment
- Enrolled (PECOS I20220719002767); accepts Medicare assignment
- Medical or professional school
- Michigan State University College Of Human Medicine, 1996
- Entity
- Type 1 · individual
Also registered at 36745 Aiken RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nicole GurnoeMental Health Counselor1063899516
- Tamara Kolesar, LPC-IT, SAC-ITMental Health Counselor1255996526
- Jennifer Kupczyk, PHARM.D.Pharmacist1831576214
- James Peacock, CSAC, ICSAddiction (Substance Use Disorder) Counselor1588119887
- Ann Reitz, M.D.Family Medicine Physician1538197108
- Craig Shanks, LPCMental Health Counselor1659743136
Verify Mark Avery Fuller in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 1901-320Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
52% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,538 Medicare Part D claims for 94 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 27% of claims. 87 claims were for opioids.
Most prescribed
- Gabapentin98 claims
- Atorvastatin Calcium53 claims
- Amlodipine Besylate47 claims
- Lantus Solostar47 claims
- Metformin Hcl43 claims
- Lisinopril38 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): 89.7 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 one group practice
- Red Cliff Band OF Lake Superior Chippewa IndiansBayfield, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
1 internal medicine physician records list a practice address in Bayfield
They are 1 of the 29 NPPES records with a practice address in Bayfield, and 2,078 internal medicine physician records in Wisconsin.
Other internal medicine physician records in Wisconsin
- Sheetal Aatrai, MDMarshfield, WI1417568965
- Khalid Abdelgadir, MDManitowoc, WI1407433295
- Mesfin Abdissa, MDMilwaukee, WI1376579417
- Anas Abed, MDMadison, WI1659002566
- Margaret Abel, MDRhinelander, WI1477590487
- Mesfin Abera, M.D.Beaver Dam, WI1972852390
- Vidthya Abraham, M.D.Madison, WI1861836058
- Ismael Abu Limon, MDGreenfield, WI1467945543
- Amjed Abu Muhanna, MDMarinette, WI1861514135
- Satish Achanti, MDAppleton, WI1982711198
Common questions
What is Mark Avery Fuller, MD's NPI number?
Mark Avery Fuller, MD's National Provider Identifier (NPI) is 1124055561, issued on Jun 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark Avery Fuller, MD located?
The NPPES record lists a practice address at 36745 Aiken RD, Bayfield, WI, 54814. Phone: (715) 779-3707. Providers update this record themselves, so call before visiting.
How can I verify Mark Avery Fuller, MD's license?
NPPES lists Wisconsin license number 1901-320, 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 Avery Fuller, MD prescribe under Medicare Part D?
In 2024, Mark Avery Fuller, MD had 1,538 Medicare Part D claims for 94 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Mark Avery Fuller, MD's MIPS final score?
The 2023 MIPS final score is 89.7 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.