Quick answers
- Does Zachary P. Mueller accept Medicare assignment?
- Yes. Medicare's clinician data says Zachary P. Mueller accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Zachary P. Mueller see?
- In 2024, CMS data shows 202 Original Medicare patients and 443 services for Zachary P. Mueller. This counts Original Medicare only and measures volume, not quality.
- What is Zachary P. Mueller's NPI number?
- 1801232608. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Zachary P. Mueller, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 202 |
|---|---|
| Services billed to Medicare | 443 |
| Different services or procedures | 20 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)156 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)67 services
- Hospital discharge day management, more than 30 minutes (99239)62 services
- Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)61 services
- Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)20 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Chronic kidney disease58%
- Anxiety55%
- Heart failure52%
- Arthritis49%
Hospitals where Zachary P. Mueller works
Medicare's Facility Affiliation Data lists Zachary P. Mueller at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Bridgton HospitalBridgton, ME · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 201310
- Central Maine Medical CenterLewiston, ME · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 200024
- MaineHealth Maine Medical CenterPortland, ME · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 200009
- Rumford HospitalRumford, ME · Critical Access Hospital · Emergency services: listed by Medicare · CCN 201306
Practice locations
Addresses where Zachary P. Mueller is enrolled with Medicare (CMS data updated October 2, 2026).
- 10 Hospital DrBridgton, ME 04009 (207) 647‑6000
- 22 Bramhall StPortland, ME 04102
- 300 Main StLewiston, ME 04240 (207) 795‑0111
- 420 Franklin StRumford, ME 04276 (207) 369‑1000
- 430 Franklin StRumford, ME 04276 (207) 369‑1224
Group practices
Medicare enrollment lists Zachary P. Mueller as a member of these groups (CMS data updated October 2, 2026).
- MaineHealth2,633 clinicians in the group
- Central Maine Medical Center342 clinicians in the group
- Bridgton Hospital39 clinicians in the group
- Rumford Hospital39 clinicians in the group
- Rumford Community Family Health Center Inc.37 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Maine
Clinicians with the same Medicare primary specialty in Maine — not a recommendation.
Other clinicians in MaineHealth
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | University Of New England, College Of Osteo Medicine |
| Graduation year | 2013 (13 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1801232608 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians