Individual provider Active NPI

Gary Diperna, DO

  • Nephrology Physician
  • Portland, ME
National Provider Identifier
1649567579
Registry record updated May 28, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Nephrology PhysicianTaxonomy code 207RN0300X
License
DO2511 Issued in ME
Practice address
1600B Congress St
Portland, ME 04102-2124
Phone
(207) 774-5222
Fax
(207) 761-4433
NPI assigned
Jun 29, 2011
Last updated
May 28, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on May 28, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Nephrology Physician 207RN0300X DO2511 ME Primary

Addresses

Primary practice location

1600B Congress St
Portland, ME 04102-2124

Mailing address

1600B Congress St
Portland, ME 04102-2124
Phone (207) 774-5222

Other practice location 1

35 Medical Center Pkwy
Augusta, ME 04330-8160
Phone (207) 626-6480

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
I20150515001007 ME Practitioner - NephrologyPractitioner - Internal Medicine 2567696446 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
NephrologyAlso: Internal Medicine
Education
University of New England, College of Osteo Medicine, 2011
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Mainegeneral Medical CenterGroup PAC ID 1254245715, 554 clinicians

Practice addresses (Care Compare)

35 Medical Ctr Pkwy
Augusta, ME 04330-8160
Phone (207) 621-1000

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
86.22 of 100Reported as group
Quality
75.39
Promoting interoperability
84
Improvement activities
40
Cost
75.32

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Mainehealth CurrentSince Jul 1, 2016 Accepting new patients
Mainegeneral Medical Center CurrentSince Jun 28, 2021 Accepting new patients
Mainegeneral Medical Center CurrentSince Jun 28, 2021 Accepting new patients
Mainehealth Nephrology Current Accepting new patients

Locations

35 Medical Center Pkwy
Augusta, ME 04330
Phone (207) 621-3639

22 Bramhall St
Portland, ME 04102
Phone (207) 662-2179

149 North St
Waterville, ME 04901
Phone (207) 622-1959

Interoperability endpoints

  • Direct secure messaging: garydiperna@mgh.allscriptsdirect.net

Organizations & group practices 4

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

Hospital & facility affiliations 1

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

NPI Registry JSON

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

{
    "created_epoch": "1309305600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1779926400000",
    "number": "1649567579",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1600B CONGRESS ST",
            "city": "PORTLAND",
            "state": "ME",
            "postal_code": "041022124",
            "telephone_number": "207-774-5222",
            "fax_number": "207-761-4433"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1600B CONGRESS ST",
            "city": "PORTLAND",
            "state": "ME",
            "postal_code": "041022124",
            "telephone_number": "207-774-5222",
            "fax_number": "207-761-4433"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "35 Medical Center Pkwy",
            "address_purpose": "LOCATION",
            "city": "Augusta",
            "state": "ME",
            "postal_code": "043308160",
            "country_code": "US",
            "telephone_number": "207-626-6480",
            "fax_number": "207-626-6481",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "DIPERNA",
        "first_name": "GARY",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2011-06-29",
        "last_updated": "2026-05-28",
        "certification_date": "2026-05-28",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RN0300X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Nephrology",
            "state": "ME",
            "license": "DO2511",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Portland, ME

Sources for this page

Verify at the official NPI Registry.