Zachary P. Mueller, DO
Hospitalist Physician · Portland, ME
Zachary P. Mueller, DO is a hospitalist physician with a practice address in Portland, Maine, and NPI 1801232608, issued on May 20, 2013. Check the license (Maine DO2636, as entered in NPPES) on the Maine Board of Licensure in Medicine; the Medicare figures below come from public CMS files.
- Name
- Zachary P. Mueller
- Credential
- DO
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- DO2636 ME
Self-reported in NPPES; status is on the state search - Practice location
- 22 Bramhall St, Portland, ME 04102
- Phone
- (207) 662-4618
- Enumerated
- May 20, 2013
- Record last updated
- Mar 30, 2026
- Fax
- (207) 662-6254
- Medicare enrollment
- Enrolled (PECOS I20161102002380); accepts Medicare assignment
- Medical or professional school
- University Of New England, College Of Osteo Medicine, 2013
- Entity
- Type 1 · individual
Also registered at 22 Bramhall St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jessica Abbatiello, NP-CFamily Nurse Practitioner1871811737
- Ruslan Abdukalikov, DOAnesthesiology Physician1831694793
- Tod Abrahams, M.D.Diagnostic Radiology Physician1538231642
- Joshua Abrams, PA-CSurgical Physician Assistant1932832128
- Christopher Abruzzese, D.OAnesthesiology Physician1558789305
- Haley Acker, PA-CPhysician Assistant1972167377
Verify Zachary P. Mueller in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaine Board of Licensure in Medicine
Search for license DO2636Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
10% fewer Medicare Part D claims than the average hospitalist physician in 2024
468 Medicare Part D claims for 159 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. 16 claims were for opioids.
Most prescribed
- Prednisone32 claims
- Atorvastatin Calcium23 claims
- Cefdinir22 claims
- Potassium Chloride19 claims
- Furosemide18 claims
- Montelukast Sodium18 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): 79.4 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).
3 hospitals and group practices
- Central Maine Medical CenterLewiston, ME · Acute Care Hospitals4 of 5 stars
- Bridgton HospitalBridgton, ME · Critical Access Hospitals3 of 5 stars
- Rumford Community Family Health Center Inc.Rumford, ME
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
81 hospitalist physician records list a practice address in Portland
They are 81 of the 6,022 NPPES records with a practice address in Portland, and 245 hospitalist physician records in Maine.
All 81 in Portland → All 245 in Maine → Every provider in Portland →
Other hospitalist physician records in Maine
- Christopher Abbott, D.O.Lewiston, ME1982043329
- Moataz Mohamed Nazmy Abdelnaby, MDBangor, ME1124747712
- Sophia AdamsPortland, ME1073961892
- Adedeji Ademiluyi, MDBiddeford, ME1467013268
- Kelly Aguilar, M.D.Bangor, ME1376938639
- Mohanad Ahmed, MDBangor, ME1629797162
- Seleipiri Akobo, M.DPortland, ME1952763914
- Ahmed Aldilaimi, MDWaterville, ME1497721849
- Nancy Allen, M.D.Bangor, ME1215186010
- Terry Allen, M.D.Bangor, ME1447290572
Common questions
What is Zachary P. Mueller, DO's NPI number?
Zachary P. Mueller, DO's National Provider Identifier (NPI) is 1801232608, issued on May 20, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Zachary P. Mueller, DO located?
The NPPES record lists a practice address at 22 Bramhall St, Portland, ME, 04102. Phone: (207) 662-4618. Providers update this record themselves, so call before visiting.
How can I verify Zachary P. Mueller, DO's license?
NPPES lists Maine license number DO2636, as entered by the provider. Search the Maine Board of Licensure in Medicine at https://www.maine.gov/md/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Zachary P. Mueller, DO prescribe under Medicare Part D?
In 2024, Zachary P. Mueller, DO had 468 Medicare Part D claims for 159 beneficiaries; the average among hospitalist physician prescribers was 521. Part D covers Medicare prescriptions only.
What is Zachary P. Mueller, DO's MIPS final score?
The 2023 MIPS final score is 79.4 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.