Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Zachary P Mueller, DO

Individual provider Internal Medicine Physician · NPI 1801232608

Zachary P Mueller, DO practises Internal Medicine in Portland, Maine. Graduated from University of New England, College of Osteo Medicine in 2013, 13 years ago. Practices with Bridgton Hospital, a 30-clinician group, works from 6 locations and accepts Medicare assignment. Licensed in Maine.

Years since qualifying
13
Trained at
University of New England, College of Osteo Medicine
Licensed in
ME
In the registry since
2013
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

22 Bramhall St
Portland, ME 04102-3134
Phone: (207) 662-4618
Fax: (207) 662-6254
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (5)

  • 118 Northport Ave, Belfast, ME 04915-6009 — (207) 338-2500
  • 1 Medical Center Dr, Biddeford, ME 04005-9422 — (207) 283-7937
  • 300 Main St, Lewiston, ME 04240-7027 — (207) 795-7575
  • 6 Glen Cove Dr, Rockport, ME 04856-4272 — (207) 301-8542
  • 25 June St, Sanford, ME 04073-2621 — (207) 324-4310

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence DO2636 (ME)
Internal Medicine Physician Taxonomy 207R00000X · Licence DO2636 (ME)

Record details

NPI number1801232608
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMay 20, 2013
Last updated in NPPESMarch 30, 2026
Certification dateMarch 30, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF NEW ENGLAND, COLLEGE OF OSTEO MEDICINE
Graduated 2013 (13 years in practice)
Group practice Bridgton Hospital — 30 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients202
Services billed 443 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Also affiliated with 1 nursing home, which CMS identifies by certification number only.

Colleagues at Bridgton Hospital

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 30 clinicians in the practice; 12 are shown here.

Other providers in Portland