Individual provider Active NPI

John Ritzo, MD

  • Family Medicine Physician
  • Lewiston, ME
National Provider Identifier
1326780115
Registry record updated Apr 12, 2022
On this page

Key facts

NPPES NPI Registry
Primary specialty
Family Medicine PhysicianTaxonomy code 207Q00000X
License
EC221068 Issued in ME
Practice address
76 High St
Lewiston, ME 04240-7649
Phone
(207) 795-2800
NPI assigned
Apr 12, 2022
Last updated
Apr 12, 2022By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Apr 12, 2022

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Family Medicine Physician 207Q00000X EC221068 ME Primary

Addresses

Primary practice location

76 High St
Lewiston, ME 04240-7649

Mailing address

76 High St
Lewiston, ME 04240-7649
Phone (207) 795-2800

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA
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
I20250822003826 CA Practitioner - Family Practice 9234679788 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Family Practice
Education
Other, 2022
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services

Practice addresses (Care Compare)

101 S San Mateo Dr
Suite 206
San Mateo, CA 94401-3843
Phone (650) 343-4003

Hospital & facility affiliations

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
John a Ritzo MD Medical Corporation Family Medicine CurrentSince Jul 31, 2025 Accepting new patients

Locations

101 S San Mateo Dr
Ste 206
San Mateo, CA 94401
Phone (650) 343-4003

Interoperability endpoints

  • Direct secure messaging: jack.ritzo.1@33146.direct.athenahealth.com
  • Direct secure messaging: jritzo745680@hisp.ehr.sutterhealth.org

Organizations & group practices 1

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 3

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": "1649721600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1649721600000",
    "number": "1326780115",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "76 HIGH ST",
            "city": "LEWISTON",
            "state": "ME",
            "postal_code": "042407649",
            "telephone_number": "207-795-2800"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "76 HIGH ST",
            "city": "LEWISTON",
            "state": "ME",
            "postal_code": "042407649",
            "telephone_number": "207-795-2800"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "RITZO",
        "first_name": "JOHN",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2022-04-12",
        "last_updated": "2022-04-12",
        "certification_date": "2022-04-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "ME",
            "license": "EC221068",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Lewiston, ME

Sources for this page

Verify at the official NPI Registry.