Individual provider Active NPI

Zachary P Mueller, DO

  • Hospitalist Physician
  • Portland, ME
National Provider Identifier
1801232608
Registry record updated Mar 30, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Hospitalist PhysicianTaxonomy code 208M00000X
License
DO2636 Issued in ME
Practice address
22 Bramhall St
Portland, ME 04102-3134
Phone
(207) 662-4618
Fax
(207) 662-6254
NPI assigned
May 20, 2013
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Mar 30, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X DO2636 ME
Hospitalist Physician 208M00000X DO2636 ME Primary

Addresses

Primary practice location

22 Bramhall St
Portland, ME 04102-3134

Mailing address

22 Bramhall St
Portland, ME 04102-3134
Phone (207) 662-4618

Other practice location 1

118 Northport Ave
Belfast, ME 04915-6009
Phone (207) 338-2500

Other practice location 2

6 Glen Cove Dr
Rockport, ME 04856-4272
Phone (207) 301-8542

Other practice location 3

300 Main St
Lewiston, ME 04240-7027
Phone (207) 795-7575

Other practice location 4

25 June St
Sanford, ME 04073-2621
Phone (207) 324-4310

Other practice location 5

1 Medical Center Dr
Biddeford, ME 04005-9422
Phone (207) 283-7937

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in ME
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20161102002380 ME Practitioner - Internal Medicine 9133361520 Reassigns benefits to 8 organizations

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
University of New England, College of Osteo Medicine, 2013
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Bridgton HospitalGroup PAC ID 8123919099, 33 clinicians
MainehealthGroup PAC ID 7517860588, shared by 31 NPIs, 2,616 clinicians
Central Maine Medical CenterGroup PAC ID 2567379563, 344 clinicians
Rumford HospitalGroup PAC ID 3870583511, 37 clinicians

Practice addresses (Care Compare)

10 Hospital Dr
Bridgton, ME 04009-1148
Phone (207) 647-6000

22 Bramhall St
Portland, ME 04102-3134
Phone (207) 885-9905

300 Main St
Lewiston, ME 04240-7027
Phone (207) 795-0111

420 Franklin St
Rumford, ME 04276-2104

430 Franklin St
Rumford, ME 04276-2104
Phone (207) 369-1224

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
85.02 of 100Reported as group
Quality
59.99
Promoting interoperability
99
Improvement activities
40
Cost
74.25

Merit-based Incentive Payment System (MIPS)

Final score
75.94 of 100Reported as group
Quality
47.72
Promoting interoperability
99
Improvement activities
40

Merit-based Incentive Payment System (MIPS)

Final score
84.57 of 100Reported as group
Quality
66.56
Promoting interoperability
99
Improvement activities
40

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Osteopathy

Practice roles

OrganizationSpecialtyStatusNew patients
Rumford Community Family Health Center, Inc. CurrentSince Jun 8, 2024 Accepting new patients
Rumford Community Family Health Center, Inc. CurrentSince Jun 8, 2024 Accepting new patients

Locations

430 Franklin St
Rumford, ME 04276
Phone (207) 369-0146

420 Franklin St
Rumford, ME 04276
Phone (207) 364-4581

Organizations & group practices 7

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

Hospital & facility affiliations 39

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

View all 39

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1369008000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1774828800000",
    "number": "1801232608",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "22 BRAMHALL ST",
            "city": "PORTLAND",
            "state": "ME",
            "postal_code": "041023134",
            "telephone_number": "207-662-4618",
            "fax_number": "207-662-6254"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "22 BRAMHALL ST",
            "city": "PORTLAND",
            "state": "ME",
            "postal_code": "041023134",
            "telephone_number": "207-662-4618",
            "fax_number": "207-662-6254"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "118 Northport Ave",
            "address_purpose": "LOCATION",
            "city": "Belfast",
            "state": "ME",
            "postal_code": "049156009",
            "country_code": "US",
            "telephone_number": "207-338-2500",
            "fax_number": "207-505-4590",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "6 Glen Cove Dr",
            "address_purpose": "LOCATION",
            "city": "Rockport",
            "state": "ME",
            "postal_code": "048564272",
            "country_code": "US",
            "telephone_number": "207-301-8542",
            "fax_number": "207-301-5277",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "300 Main St",
            "address_purpose": "LOCATION",
            "city": "Lewiston",
            "state": "ME",
            "postal_code": "042407027",
            "country_code": "US",
            "telephone_number": "207-795-7575",
            "fax_number": "207-795-7133",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "25 June St",
            "address_purpose": "LOCATION",
            "city": "Sanford",
            "state": "ME",
            "postal_code": "040732621",
            "country_code": "US",
            "telephone_number": "207-324-4310",
            "fax_number": "207-490-7999",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1 Medical Center Dr",
            "address_purpose": "LOCATION",
            "city": "Biddeford",
            "state": "ME",
            "postal_code": "040059422",
            "country_code": "US",
            "telephone_number": "207-283-7937",
            "fax_number": "207-283-7018",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MUELLER",
        "first_name": "ZACHARY",
        "middle_name": "P",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2013-05-20",
        "last_updated": "2026-03-30",
        "certification_date": "2026-03-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "ME",
            "license": "DO2636",
            "primary": false
        },
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "ME",
            "license": "DO2636",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Portland, ME

Sources for this page

Verify at the official NPI Registry.