Jenna Clark, MS, RD, LD, CPT

Primary specialty

Registered DietitianTaxonomy code 133V00000X

License

1417 Issued in AR

Practice address

6801 Rogers Ave FL 5
Fort Smith, AR 72903-4067

Phone

(479) 274-4100

NPI assigned

Feb 5, 2020

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Other names 1

• Jenna Siebenmorgen Former name

Medicare fee-for-service enrollment

Enrolled in AR

Enrollment records 1

Specialty

Registered Dietitian Or Nutrition Professional

Education

Other, 2013

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Mercy Health Northwest Arkansas CommunitiesGroup PAC ID 0648177873, 314 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Master of Science

State licenses

Practice roles

Locations

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.

• Mercy Health Northwest Arkansas Communities

  • Multi-Specialty Clinic/Center
  • Rogers, AR
  • NPI 1265490916
  Medicare reassignment Care Compare group NPD
• Mercy Clinic Fort Smith Communities

  • Multi-Specialty Clinic/Center
  • Fort Smith, AR
  • NPI 1902073620
  Medicare reassignment NPD
• Mercy Clinic Fort Smith Communities

  • Endocrinology, Diabetes & Metabolism Physician
  • Fort Smith, AR
  • NPI 1790258002
  NPD
• Mercy Health Northwest Arkansas Communities

  • Endocrinology, Diabetes & Metabolism Physician
  • Rogers, AR
  • NPI 1770087371
  NPD
• Cloud Health Medical Group of California, P.C.

  • Internal Medicine Physician
  • San Francisco, CA
  • NPI 1194404327
  NPD (past)

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

{
    "created_epoch": "1580860800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1778025600000",
    "number": "1497387716",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "6801 ROGERS AVE",
            "city": "FORT SMITH",
            "state": "AR",
            "postal_code": "729034067"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "6801 ROGERS AVE FL 5",
            "city": "FORT SMITH",
            "state": "AR",
            "postal_code": "729034067",
            "telephone_number": "479-274-4100"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CLARK",
        "first_name": "JENNA",
        "credential": "MS, RD, LD, CPT",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2020-02-05",
        "last_updated": "2026-05-06",
        "certification_date": "2026-05-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "133V00000X",
            "taxonomy_group": "",
            "desc": "Dietitian, Registered",
            "state": "AR",
            "license": "1417",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "JENNA",
            "last_name": "SIEBENMORGEN",
            "credential": "MS, RD, LD, CPT",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• Brittany Clark
• Christine Clark, LPC
• Cindy Clark, LPN
• Elizabeth Ann Clark, APN
• Gabrielle Ann Clark
• Joshua A Clark, M.D.
• Rebecca Clark, COTA
• Scott Matthew Clark, DC
• Terry L Clark, MD
• Clear View Radiology, PLLC

• Registered Dietitian in Fort Smith, AR
• Providers in Fort Smith, AR by specialty
• Registered Dietitian in Arkansas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 6, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.