Individual provider Active NPI

Douglas J Marlow, MD

  • Internal Medicine Physician
  • Knoxville, TN
National Provider Identifier
1659360295
Registry record updated Aug 20, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
MD35847 Issued in TN
Practice address
6600 Nightingale LN
Knoxville, TN 37909-2754
Phone
(865) 632-5885
Fax
(865) 374-2164
NPI assigned
Oct 17, 2005
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Aug 20, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X MD35847 TN Primary

Addresses

Primary practice location

6600 Nightingale LN
Knoxville, TN 37909-2754

Mailing address

6600 Nightingale LN
Knoxville, TN 37909-2754
Phone (865) 632-5885

Other practice location 1

7625 Chapman Hwy Ste 103
Knoxville, TN 37920-2353
Phone (865) 632-5893

Other identifiers 3

IdentifierTypeStateIssuer
3867894MedicaidTN
4119661OtherTNBLUE CROSS
TN0109OtherTNJOHNDEERE

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address marlow.douglas@covenanthealth.cernerdirect.com

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in TN
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
I20060420000598 TN Practitioner - Internal Medicine 9335111780 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
University of Toledo College of Medicine, 1994
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Covenant Medical Group IncGroup PAC ID 2860305463, 363 clinicians

Practice addresses (Care Compare)

1300 Old Weisgarber Rd
Knoxville, TN 37909-1291
Phone (865) 584-2146

Hospital & facility affiliations

  • University of TN Medical Center Home Care Services Home health agency, Knoxville, TN, CCN 447230
  • Parkwest Medical Center Hospital, Knoxville, TN, CCN 440173
  • Fort Sanders Regional Medical Center Hospital, Knoxville, TN, CCN 440125
  • Leconte Medical Center Hospital, Sevierville, TN, CCN 440081
  • Methodist Medical Center of Oak Ridge Hospital, Oak Ridge, TN, CCN 440034
  • Physicians Regional Medical Center Hospital, Powell, TN, CCN 440120

Procedures performed for Medicare patients

ProcedureNumber of procedures
Removal of skin lesions1-10

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
MD35847TNMDInternal Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Covenant Medical Group, Inc CurrentSince Dec 1, 2012 Accepting new patients
Covenant Medical Group, Inc. Internal Medicine CurrentSince Dec 1, 2012 Accepting new patients
Caromont Medical Group Inc Internal Medicine Past Accepting new patients

Locations

6600 Nightingale Ln
Knoxville, TN 37909
Phone (865) 632-5885

1300 Old Weisgarber Rd
Knoxville, TN 37909
Phone (865) 584-2146

7625 Chapman Hwy
Ste 103
Knoxville, TN 37920
Phone (865) 331-1122

Dept 888179
Knoxville, TN 37995

7564 Mountain Grove Dr
Knoxville, TN 37920
Phone (865) 632-5885

111 Clyde St
Loudon, TN 37774
Phone (865) 458-1554

Interoperability endpoints

  • Direct secure messaging: marlow.douglas@covenanthealth.cernerdirect.com

Organizations & group practices 3

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 6

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": "1129507200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1755648000000",
    "number": "1659360295",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "6600 NIGHTINGALE LN",
            "city": "KNOXVILLE",
            "state": "TN",
            "postal_code": "379092754",
            "telephone_number": "865-632-5885",
            "fax_number": "865-374-2164"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "6600 NIGHTINGALE LN",
            "city": "KNOXVILLE",
            "state": "TN",
            "postal_code": "379092754",
            "telephone_number": "865-632-5885",
            "fax_number": "865-374-2164"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "7625 Chapman Hwy Ste 103",
            "address_purpose": "LOCATION",
            "city": "Knoxville",
            "state": "TN",
            "postal_code": "379202353",
            "country_code": "US",
            "telephone_number": "865-632-5893",
            "fax_number": "865-374-2164",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MARLOW",
        "first_name": "DOUGLAS",
        "middle_name": "J",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-10-17",
        "last_updated": "2025-08-20",
        "certification_date": "2025-08-20",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "TN",
            "license": "MD35847",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "3867894",
            "state": "TN"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BLUE CROSS",
            "identifier": "4119661",
            "state": "TN"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "JOHNDEERE",
            "identifier": "TN0109",
            "state": "TN"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "marlow.douglas@covenanthealth.cernerdirect.com",
            "affiliation": "N",
            "address_1": "6600 Nightingale Ln",
            "city": "Knoxville",
            "state": "TN",
            "country_code": "US",
            "postal_code": "379092754",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Knoxville, TN

Sources for this page

Verify at the official NPI Registry.