Ryann Elizbeth Mayer, MPS, RDN, LDN, CSP

Primary specialty

Pediatric Nutrition Registered DietitianTaxonomy code 133VN1004X

License

DX3673 Issued in MD

Practice address

1603 Capitol Ave Ste 411F
Cheyenne, WY 82001-4569

Phone

(484) 888-8545

NPI assigned

Oct 14, 2020

Last updated

May 19, 2025By the provider in NPPES

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

• Ryann E Diehl Former name

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Back 2 Basics Nutrition LLC

  • Pediatrics Physician
  • Frederick, MD
  • NPI 1922693423
  NPD (past)

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

{
    "created_epoch": "1602633600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1747612800000",
    "number": "1831797661",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1603 CAPITOL AVE STE 411",
            "city": "CHEYENNE",
            "state": "WY",
            "postal_code": "820014541",
            "telephone_number": "484-888-8545"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1603 CAPITOL AVE STE 411F",
            "city": "CHEYENNE",
            "state": "WY",
            "postal_code": "820014569",
            "telephone_number": "484-888-8545"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MAYER",
        "first_name": "RYANN",
        "middle_name": "ELIZBETH",
        "credential": "MPS, RDN, LDN, CSP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2020-10-14",
        "last_updated": "2025-05-19",
        "certification_date": "2025-05-19",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "133VN1004X",
            "taxonomy_group": "",
            "desc": "Dietitian, Registered, Nutrition, Pediatric",
            "state": "MD",
            "license": "DX3673",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "RYANN",
            "last_name": "DIEHL",
            "middle_name": "E",
            "credential": "RDN, LDN",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• Rebekah B Mauthe, PPC
• Marcie M Mavreles, LCSW
• Amy M Mavy, LCSW
• Tyler James Maxey, DO
• William Dean May, RPH
• Ronda Mayle
• Yenifer Alejandra Mayorga, MD
• Luther Milton Mays, M.D.
• Devin Thomas Mazzone, R.T (R)(CT)(ARRT)
• Kendra Ann McAlear, SLP

• Pediatric Nutrition Registered Dietitian in Cheyenne, WY
• Providers in Cheyenne, WY by specialty
• Pediatric Nutrition Registered Dietitian in Wyoming

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 19, 2025; 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.