Individual provider Active NPI

Mark Guzman, OTR/L

  • Occupational Therapist
  • Great Neck, NY
National Provider Identifier
1003265620
Registry record updated Apr 5, 2023
On this page

Key facts

NPPES NPI Registry
Primary specialty
Occupational TherapistTaxonomy code 225X00000X
License
009077 Issued in NY
Practice address
475 Northern Blvd Ste 19
Great Neck, NY 11021-4802
Phone
(516) 829-0030
NPI assigned
Jun 4, 2016
Last updated
Apr 5, 2023By the provider in NPPES
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Apr 5, 2023

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Occupational Therapist 225X00000X 009077 NY Primary

Addresses

Primary practice location

475 Northern Blvd Ste 19
Great Neck, NY 11021-4802

Mailing address

4 Raleigh LN
Kings Park, NY 11754-4418
Phone (516) 435-8513

Other practice location 1

4 Raleigh Ln
Kings Park, NY 11754-4418
Phone (516) 435-8513

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in NY

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20050627000238 NY Practitioner - Occupational Therapist in Private Practice 6204871684 Reassigns benefits to 5 organizations

Care Compare profile

Medicare Care Compare
Specialty
Occupational Therapist in Private Practice
Education
Other, 1998
Medicare assignment
May accept Medicare assignment
Group practices
Provident Physical and Occupational Therapy PLLCGroup PAC ID 5395006167, 2 clinicians
Evolution Home Physical Therapy, P.C.Group PAC ID 5092721381, 6 clinicians

Practice addresses (Care Compare)

1529 N Ocean Ave
Medford, NY 11763-3587
Phone (631) 266-4501

7 Waterview Dr
Port Jefferson, NY 11777-1169
Phone (631) 513-9475

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

Practice roles

OrganizationSpecialtyStatusNew patients
Physical Medicine & Rehabilitation of Long Island CurrentSince Jan 14, 2018 Accepting new patients
Provident Physical and Occupational Therapy PLLC Occupational Therapist CurrentSince Sep 24, 2019 Accepting new patients
Medcare Therapy Services:Physical, Occupational & Massage Therapy,PLLC Occupational Therapist CurrentSince Feb 8, 2023 Accepting new patients
Reddy Care Physical and Occupational Therapy PLLC CurrentSince Apr 5, 2023 Accepting new patients
Evolution Home Physical Therapy, P.C. CurrentSince Jul 23, 2025 Accepting new patients
Provident Health Partners Inc. PastSince Jun 14, 2020 Accepting new patients
Family Residences and Essential Enterprises, Inc. Past Accepting new patients
Reddy Care Physical Therapy PC PastSince Apr 5, 2023 Accepting new patients

Locations

234 Orinoco Dr
Brightwaters, NY 11718
Phone (631) 300-0079

554 Larkfield Rd
Ste 205
East Northport, NY 11731

554 Larkfield Rd
Ste 207
East Northport, NY 11731
Phone (631) 266-4501

475 Northern Blvd
Ste 19
Great Neck, NY 11021
Phone (516) 344-0023

475 Northern Blvd
Ste 27
Great Neck, NY 11021

1529 N Ocean Ave
Unit B
Medford, NY 11763

21 Riverside Dr
Middletown, NY 10941
Phone (845) 695-5600

21 Riverside Dr
Ste B
Middletown, NY 10941

Organizations & group practices 8

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.

NPI Registry JSON

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

{
    "created_epoch": "1464998400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1680652800000",
    "number": "1003265620",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4 RALEIGH LN",
            "city": "KINGS PARK",
            "state": "NY",
            "postal_code": "117544418",
            "telephone_number": "516-435-8513"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "475 NORTHERN BLVD STE 19",
            "city": "GREAT NECK",
            "state": "NY",
            "postal_code": "110214802",
            "telephone_number": "516-829-0030"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "4 Raleigh Ln",
            "address_purpose": "LOCATION",
            "city": "Kings Park",
            "state": "NY",
            "postal_code": "117544418",
            "country_code": "US",
            "telephone_number": "516-435-8513",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "GUZMAN",
        "first_name": "MARK",
        "credential": "OTR/L",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2016-06-04",
        "last_updated": "2023-04-05",
        "certification_date": "2023-04-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "225X00000X",
            "taxonomy_group": "",
            "desc": "Occupational Therapist",
            "state": "NY",
            "license": "009077",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Great Neck, NY

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 5, 2023; 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.