Individual provider Active NPI

Clifton Umstead, D.O.

  • Family Medicine Physician
  • Marietta, OH
National Provider Identifier
1427405497
Registry record updated Oct 23, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Family Medicine PhysicianTaxonomy code 207Q00000X
License
34.015728 Issued in OH
Practice address
401 Matthew St
Marietta, OH 45750-1635
Phone
(740) 374-7700
NPI assigned
May 19, 2016
Last updated
Oct 23, 2026By the provider in NPPES
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Oct 23, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Family Medicine Physician 207Q00000X 34.015728 OH Primary
Family Medicine Physician 207Q00000X 292574 NY

Addresses

Primary practice location

401 Matthew St
Marietta, OH 45750-1635

Mailing address

17855 State Route 821
Macksburg, OH 45746-7502
Phone (631) 819-2396

Other practice location 1

1106 Colegate Dr
Marietta, OH 45750-1323
Phone (740) 374-7700

Electronic endpoints 2

TypeEndpointUseAffiliation
Direct Messaging Address hospital.provider@mmhs.directaddress.net
Direct Messaging Address hospital.provider@mmhs.directaddress.net

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in OH
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
I20220503001320 OH Practitioner - HospitalistPractitioner - Family Practice 9032440649 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
HospitalistAlso: Family Practice
Education
West Virginia School of Osteopathic Medicine, 2016
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Marietta Memorial HospitalGroup PAC ID 8224928965, 387 clinicians

Practice addresses (Care Compare)

401 Matthew St
Marietta, OH 45750-1635
Phone (740) 374-1623

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
34.015728OHMDFamily Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Selby General Hospital CurrentSince Jan 1, 2026 Accepting new patients
Marietta Memorial Hospital CurrentSince May 30, 2022 Accepting new patients
Selby General Hospital CurrentSince Jan 1, 2026 Accepting new patients
Marietta Memorial Hospital CurrentSince May 30, 2022 Accepting new patients

Locations

1106 Colegate Dr
Marietta, OH 45750
Phone (740) 374-7700

401 Matthew St
Marietta, OH 45750
Phone (740) 374-1400

416 Colegate Dr
#3
Marietta, OH 45750
Phone (740) 374-3526

Interoperability endpoints

  • Direct secure messaging: clifton.umstead@mmhs.medicity.net
  • Direct secure messaging: hospital.provider@mmhs.medicity.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 4

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": "1463616000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1792713600000",
    "number": "1427405497",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "17855 STATE ROUTE 821",
            "city": "MACKSBURG",
            "state": "OH",
            "postal_code": "457467502",
            "telephone_number": "631-819-2396"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "401 MATTHEW ST",
            "city": "MARIETTA",
            "state": "OH",
            "postal_code": "457501635",
            "telephone_number": "740-374-7700"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1106 Colegate Dr",
            "address_purpose": "LOCATION",
            "city": "Marietta",
            "state": "OH",
            "postal_code": "457501323",
            "country_code": "US",
            "telephone_number": "740-374-7700",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "UMSTEAD",
        "first_name": "CLIFTON",
        "name_prefix": "Dr.",
        "credential": "D.O.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2016-05-19",
        "last_updated": "2026-10-23",
        "certification_date": "2026-10-23",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "OH",
            "license": "34.015728",
            "primary": true
        },
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "NY",
            "license": "292574",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "hospital.provider@mmhs.directaddress.net",
            "affiliation": "N",
            "address_1": "401 Matthew St",
            "city": "Marietta",
            "state": "OH",
            "country_code": "US",
            "postal_code": "457501635",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "hospital.provider@mmhs.directaddress.net",
            "affiliation": "N",
            "address_1": "1106 Colegate Dr",
            "city": "Marietta",
            "state": "OH",
            "country_code": "US",
            "postal_code": "457501323",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Marietta, OH

Sources for this page

Verify at the official NPI Registry.