Mark Fuller, MD
NPI 1124055561 · Internal Medicine Physician · Bayfield, WI
Enrolled with Medicare as Practitioner - General Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Fuller, MD is a Internal Medicine Physician provider in Bayfield, WI (NPI 1124055561).
Provider details
- NPI number
- 1124055561
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 4301093004 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
672 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 124 | $85 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 120 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 62 | $120 |
| Hemoglobin A1c Level83036 | 52 | $10 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 46 | $8 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 45 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 45 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 98 | 22 |
| Atorvastatin Calcium | 53 | 23 |
| Amlodipine Besylate | 47 | 17 |
| Insulin Glargine,hum.rec.anlogbrand: Lantus Solostar | 47 | 11 |
| Metformin Hcl | 43 | 13 |
| Lisinopril | 38 | 14 |
| Metoprolol Succinate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-28
- Last updated
- 2022-06-21
- Certified
- 2022-06-21
Frequently asked questions
- What is Mark Fuller's NPI number?
- Mark Fuller's National Provider Identifier (NPI) is 1124055561, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Fuller's specialty?
- Mark Fuller is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Fuller located?
- Mark Fuller's practice location on file with NPPES is 36745 Aiken Rd, Bayfield, WI 54814-4579.
- What is Mark Fuller's phone number?
- The practice phone number listed in the NPPES registry for Mark Fuller is (715) 779-3707.
- Does Mark Fuller accept Medicare?
- Mark Fuller is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Fuller's NPI active?
- Yes — Mark Fuller's NPI (1124055561) is active in the NPPES registry as of the last update on 2022-06-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.