Ryan Drizen, DC

Primary specialty

ChiropractorTaxonomy code 111N00000X

License

CHI3849 Issued in MA

Practice address

118 Great Rd
Stow, MA 01775-1190

Phone

(978) 897-1770

Fax

(978) 897-1715

NPI assigned

Jan 17, 2024

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in MA

Enrollment records 1

Specialty

Chiropractic

Education

Other, 2023

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Bay State Physical Therapy of Randolph IncGroup PAC ID 6305744251, 451 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

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.

• Bay State Physical Therapy of Randolph Inc

  • Physical Therapist
  • Fall River, MA
  • NPI 1164474334
  Medicare reassignment Care Compare group
• The Whittemore Group, Inc.

  • Chiropractor
  • Stow, MA
  • NPI 1164634481
  Medicare reassignment NPD

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

{
    "created_epoch": "1705449600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1762387200000",
    "number": "1184485237",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "118 GREAT RD",
            "city": "STOW",
            "state": "MA",
            "postal_code": "017751190",
            "telephone_number": "978-897-1770",
            "fax_number": "978-897-1715"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "118 GREAT RD",
            "city": "STOW",
            "state": "MA",
            "postal_code": "017751190",
            "telephone_number": "978-897-1770",
            "fax_number": "978-897-1715"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DRIZEN",
        "first_name": "RYAN",
        "name_prefix": "Dr.",
        "credential": "DC",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2024-01-17",
        "last_updated": "2025-11-06",
        "certification_date": "2025-11-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "111N00000X",
            "taxonomy_group": "",
            "desc": "Chiropractor",
            "state": "MA",
            "license": "CHI3849",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Alina Michelle Carter, MS CCC-SLP
• Nichole Cavallaro, MHC
• Amanda Ciulla
• Elizabeth F Clark, PH.D.
• Daiana Dacosta, MS, LMHC
• Julia Dunning
• Shealee Marie Engen, IHPL2
• Julie Gariepy, M.S., CCC-SLP
• Laura Greene
• Thomas Handrick

• Chiropractor in Stow, MA
• Providers in Stow, MA by specialty
• Chiropractor in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 6, 2025; 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.