Individual provider Active NPI

Patrick Loomis, RN

  • Certified Registered Nurse Anesthetist
  • Bay Shore, NY
National Provider Identifier
1750810917
Registry record updated Sep 3, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Certified Registered Nurse AnesthetistTaxonomy code 367500000X
License
125366 Issued in NY
Practice address
301 E Main St
Bay Shore, NY 11706-8408
Phone
(617) 636-5000
NPI assigned
Jun 9, 2017
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Sep 3, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Critical Care Medicine Registered Nurse 163WC0200X RN2305986 MA
Certified Registered Nurse Anesthetist 367500000X 125366 NY Primary

Addresses

Primary practice location

301 E Main St
Bay Shore, NY 11706-8408

Mailing address

184 Cornell St Apt 1
Roslindale, MA 02131-4103

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20190723002183 NY Practitioner - Certified Registered Nurse Anesthetist (Crna) 3375879778 Reassigns benefits to 6 organizations

Care Compare profile

Medicare Care Compare
Specialty
Certified Registered Nurse Anesthetist (Crna)
Education
Other, 2019
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
New York Cardiovascular Anesthesiologists, P.C.Group PAC ID 5799676623, 135 clinicians
Office Based Anesthesia LLCGroup PAC ID 2163400375, 12 clinicians
North Shore - Lij Anesthesiology, PCGroup PAC ID 1153602453, 990 clinicians
Suffolk Anesthesiology Associates PCGroup PAC ID 6204725740, 78 clinicians

Practice addresses (Care Compare)

100 Port Washington Blvd
Roslyn, NY 11576-1347
Phone (516) 627-0334

200 Belle Terre Rd
Port Jefferson, NY 11777-1928
Phone (631) 360-4000

301 E Main St
Bay Shore, NY 11706-8408
Phone (914) 666-8866

50 Route 25a
Smithtown, NY 11787-1348
Phone (631) 862-3000

Hospital & facility affiliations

  • St Francis Hospital - the Heart Center Hospital, Roslyn, NY, CCN 330182
  • St Catherine of Siena Hospital Hospital, Smithtown, NY, CCN 330401
  • NS/Lij HS Southside Hospital Hospital, Bay Shore, NY, CCN 330043
  • St Charles Hospital Hospital, Port Jefferson, NY, CCN 330246
  • NS/Lij HS Huntington Hospital Hospital, Huntington, NY, CCN 330045

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Certified Registered Nurse, Registered Nurse

State licenses

LicenseStateTypeSpecialty
RN2305986MAMDCritical Care Medicine Registered Nurse
125366NYMDCertified Registered Nurse Anesthetist

Practice roles

OrganizationSpecialtyStatusNew patients
New York Cardiovascular Anesthesiologists, P.C. Anesthesiology CurrentSince Jul 1, 2025 Accepting new patients
Suffolk Anesthesiology Associates, PC Anesthesiology CurrentSince Aug 1, 2025 Accepting new patients
Long Island Anesthesia Physicians LLP Anesthesiology CurrentSince Jul 1, 2019 Accepting new patients
North Shore - Lij Anesthesiology, PC Anesthesiology CurrentSince Jan 5, 2020 Accepting new patients
Office Based Anesthesia LLC Anesthesiology CurrentSince Sep 20, 2025 Accepting new patients
North American Partners in Anesthesia LLP Anesthesiology CurrentSince Sep 15, 2019 Accepting new patients
Long Island Digestive Endoscopy Center, LLC CurrentSince Nov 22, 2021 Accepting new patients

Locations

301 Montauk Hwy
Bay Shore, NY 11706
Phone (631) 630-3977

185 Central Ave
Bethpage, NY 11714
Phone (516) 733-7100

2112 Middle Country Rd
Centereach, NY 11720
Phone (631) 247-7463

28 Research Way
East Setauket, NY 11733
Phone (631) 380-2710

340 Broadhollow Rd
Farmingdale, NY 11735
Phone (516) 931-0041

3122 Union St
Ste 1B
Flushing, NY 11354
Phone (718) 968-7171

10201 66th Rd
Forest Hills, NY 11375
Phone (718) 830-4091

975 Stewart Ave
Garden City, NY 11530
Phone (516) 222-8600

488 Great Neck Rd
Great Neck, NY 11021
Phone (516) 466-1151

125 Kennedy Dr
Ste 300
Hauppauge, NY 11788
Phone (934) 223-4500

270 Park Ave
Huntington, NY 11743
Phone (631) 351-2308

195 E Main St
Huntington, NY 11743
Phone (631) 385-8677

200 Old Country Rd
Mineola, NY 11501
Phone (516) 408-4900

1991 Marcus Ave
Ste 1010
New Hyde Park, NY 11042
Phone (631) 360-4000

1510 Jericho Tpke
New Hyde Park, NY 11040
Phone (516) 216-5341

1500 Route 112
Bldg 5
Port Jefferson Station, NY 11776
Phone (631) 470-1450

200 Belle Terre Rd
Prt Jefferson, NY 11777
Phone (631) 474-6000

9785 Queens Blvd
Rego Park, NY 11374
Phone (631) 360-0266

889 E Main St
Ste 308
Riverhead, NY 11901
Phone (631) 386-3500

333 Route 25A
Ste 225
Rocky Point, NY 11778
Phone (631) 503-1400

100 Port Washington Blvd
Roslyn, NY 11576
Phone (516) 562-6385

373 Route 111
Ste 7
Smithtown, NY 11787
Phone (631) 360-4000

50 Route 25A
Smithtown, NY 11787
Phone (631) 465-6225

48 Route 25A
Ste 105
Smithtown, NY 11787
Phone (631) 360-4000

1000 Montauk Hwy
West Islip, NY 11795
Phone (516) 705-2689

Networks

  • Healthfirst Medicare Network H5989
  • Healthfirst Medicare Network H1722
  • Healthfirst Medicare Network H9678
  • Healthfirst Medicare Network H3359

Organizations & group practices 7

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.

Hospital & facility affiliations 5

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

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

{
    "created_epoch": "1496966400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1756857600000",
    "number": "1750810917",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "184 CORNELL ST APT 1",
            "city": "ROSLINDALE",
            "state": "MA",
            "postal_code": "021314103"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "301 E MAIN ST",
            "city": "BAY SHORE",
            "state": "NY",
            "postal_code": "117068408",
            "telephone_number": "617-636-5000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LOOMIS",
        "first_name": "PATRICK",
        "credential": "RN",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2017-06-09",
        "last_updated": "2025-09-03",
        "certification_date": "2025-09-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "163WC0200X",
            "taxonomy_group": "",
            "desc": "Registered Nurse, Critical Care Medicine",
            "state": "MA",
            "license": "RN2305986",
            "primary": false
        },
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "NY",
            "license": "125366",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Bay Shore, NY

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 3, 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.