Jani Ann Van Grevenhof, MS, RD/LD, CDE

Primary specialty

Registered DietitianTaxonomy code 133V00000X

License

LD 999 Issued in OK

Practice address

1600 N Phillips Ave
Coah Nutrition Counseling Clinic
Oklahoma City, OK 73104-4619

Phone

(405) 271-2113

Fax

(405) 271-1560

NPI assigned

Aug 25, 2005

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 identifiers 1

Other names 1

• Jani Ann Tuttle Former name

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

Credentials

Master of Science

State licenses

Practice roles

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.

• State of Ok, Board of Regents, University of Ok Health Sciences Center

  • Registered Dietitian
  • Oklahoma City, OK
  • NPI 1346237815

  Dietitian, Registered

  NPD (past)

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

{
    "created_epoch": "1124928000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1790778686",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "DEPARTMENT OF NUTRITIONAL SCIENCES",
            "address_2": "PO BOX 26901, CHB 469",
            "city": "OKLAHOMA CITY",
            "state": "OK",
            "postal_code": "731900001",
            "telephone_number": "405-271-2113",
            "fax_number": "405-271-1560"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1600 N PHILLIPS AVE",
            "address_2": "COAH NUTRITION COUNSELING CLINIC",
            "city": "OKLAHOMA CITY",
            "state": "OK",
            "postal_code": "731044619",
            "telephone_number": "405-271-2113",
            "fax_number": "405-271-1560"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "VAN GREVENHOF",
        "first_name": "JANI",
        "middle_name": "ANN",
        "name_prefix": "Mrs.",
        "credential": "MS, RD/LD, CDE",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2005-08-25",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "133V00000X",
            "taxonomy_group": "",
            "desc": "Dietitian, Registered",
            "state": "OK",
            "license": "LD 999",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "AETNA",
            "identifier": "7571472",
            "state": "OK"
        }
    ],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "JANI",
            "last_name": "TUTTLE",
            "middle_name": "ANN",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• Melissa Sarah Van Cain, M.D.
• Madison Van Curen
• Emily Marissa Van de Houten
• Haley Van Fleet
• Tristan D Van Gemert
• Andrew L Van Hook, MD
• Justin Van Hoorebeke, MD
• Svetlana V Van Hooser, LPC CANDIDATE
• Hannah Allison Van Horn
• Jaycee Starr Van Horn, D.D.S.

• Registered Dietitian in Oklahoma City, OK
• Providers in Oklahoma City, OK by specialty
• Registered Dietitian in Oklahoma

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.