Joanne Hassing Ritvo, M.D.

Primary specialty

Psychiatry PhysicianTaxonomy code 2084P0800X

License

21340 Issued in CO

Practice address

501 S Cherry St
#650
Denver, CO 80246-1325

Phone

(303) 329-0139

Fax

(303) 399-0232

NPI assigned

Feb 9, 2006

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

• Dr. Joanne Hassing B Odley Former name

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

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.

Opted out of Medicare

Yes, effective Apr 1, 2017 through Apr 1, 2027

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

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

{
    "created_epoch": "1139443200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1093788978",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "501 S CHERRY ST",
            "address_2": "#650",
            "city": "DENVER",
            "state": "CO",
            "postal_code": "802461325",
            "telephone_number": "303-329-0139",
            "fax_number": "303-399-0232"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "501 S CHERRY ST",
            "address_2": "#650",
            "city": "DENVER",
            "state": "CO",
            "postal_code": "802461325",
            "telephone_number": "303-329-0139",
            "fax_number": "303-399-0232"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "RITVO",
        "first_name": "JOANNE",
        "middle_name": "HASSING",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-02-09",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084P0800X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": "CO",
            "license": "21340",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "JOANNE",
            "last_name": "B ODLEY",
            "middle_name": "HASSING",
            "prefix": "DR.",
            "credential": "M.D.",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• Jill Renee Ritter, PHARMD
• Melanie Ritter
• Melinda Ritter, PT, DPT
• Tara Ritter, DC, FIAMA
• Colette Rittle, PA
• Jonathan Isaac Ritvo, M.D.
• Cierra Ritzert, PTA
• Riva Health Provider Group PA
• Katherine Riva, M.D.
• Nannette Sue Rivas, RPH

• Psychiatry Physician in Denver, CO
• Providers in Denver, CO by specialty
• Psychiatry Physician in Colorado

• 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.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring; Opt Out Affidavits.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.