NPIMap

Individual provider Active NPI

Patrick A Siaw, M.D.

  • Internal Medicine Physician
  • Buffalo, NY
National Provider Identifier
1922039213
Registry record updated Dec 7, 2011
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
211163 Issued in NY
Practice address
2157 Main St
Buffalo, NY 14214-2648
Phone
(716) 862-1984
Fax
(716) 862-1891
NPI assigned
Jul 5, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Dec 7, 2011

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X 211163 NY Primary

Addresses

Primary practice location

2157 Main St
Buffalo, NY 14214-2648

Mailing address

2157 Main St
Buffalo, NY 14214-2648
Phone (716) 862-1984

Other identifiers 3

IdentifierTypeStateIssuer
00010370101OtherNYUNIVERA
000525325005OtherNYBLUE CROSS OF WNY
0410363OtherNYINDEPENDENT HEALTH

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in NY
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20040710000232 NY Practitioner - Internal Medicine 1355329996 Reassigns benefits to 5 organizations
Practice locations: Buffalo, NY; Lancaster, NY

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
Other, 1989
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Physician Mobile Medical Care PCGroup PAC ID 8426575325, 97 clinicians
Mobile Physician Services PLLCGroup PAC ID 8325360290, 104 clinicians
Partners Medical Group PLLCGroup PAC ID 5092155937, 35 clinicians

Practice addresses (Care Compare)

Buffalo, NY 14202
Phone (716) 893-1010

40 La Riviere Dr
Suite 201
Buffalo, NY 14202-4036
Phone 7168931010210

6400 Powers Rd
Orchard Park, NY 14127-4841
Phone (914) 843-9637

Hospital & facility affiliations

  • Hospice Buffalo Inc Hospice, Cheektowaga, NY, CCN 331502
  • Sisters of Charity Hospital Hospital, Buffalo, NY, CCN 330078
  • Kaleida Health Hospital, Buffalo, NY, CCN 330005
  • Humboldt House Rehabilitation and Nursing Center Nursing home, Buffalo, NY, CCN 335164
  • Beechwood Health Care Center, Inc. Nursing home, Getzville, NY, CCN 335468
  • McAuley Residence Nursing home, Kenmore, NY, CCN 335433
  • Greenfield Health & Rehab Center Nursing home, Lancaster, NY, CCN 335182
  • Mercy Hospital Skilled Nursing Facility Nursing home, Lackawanna, NY, CCN 335308

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

Practice roles

OrganizationSpecialtyStatusNew patients
Physician Mobile Medical Care PC Internal Medicine CurrentSince Dec 4, 2025 Accepting new patients
Partners Medical Group, PLLC CurrentSince Mar 17, 2024 Accepting new patients
Mobile Physician Services PLLC CurrentSince Dec 4, 2025 Accepting new patients
Care Connect Medical P.C. Internal Medicine CurrentSince Sep 1, 2023 Accepting new patients
Beechwood Health Care Center Inc. Past Accepting new patients
Elder Medical Services PC PastSince Aug 1, 2004 Accepting new patients
Niagara Lutheran Development, Inc. Past Accepting new patients
McAuley Residence Past Accepting new patients
Mercy Hospital of Buffalo Past Accepting new patients
NHRC Acquisition LLC Past Accepting new patients

Locations

3090 Bristol St
Ste 200
Costa Mesa, CA 92626
Phone (714) 992-1182

374 Stockholm St
Brooklyn, NY 11237
Phone (718) 963-6485

40 La Riviere Dr
Ste 201A
Buffalo, NY 14202
Phone 7168931010221

2157 Main St
Buffalo, NY 14214
Phone (716) 862-1501

40 La Riviere Dr
Ste 201
Buffalo, NY 14202
Phone 7168931010210

2365 Union Rd
Cheektowaga, NY 14227
Phone (716) 668-8100

2235 Millersport Hwy
Getzville, NY 14068
Phone (716) 504-1000

100 Stahl Rd
Getzville, NY 14068
Phone (716) 688-8822

4650 Southwestern Blvd
Hamburg, NY 14075
Phone (716) 648-2450

7 Skyline Dr
Ste 250
Hawthorne, NY 10532

18215 Hillside Ave
Jamaica, NY 11432
Phone (718) 262-8651

6400 Powers Rd
Orchard Park, NY 14127
Phone (716) 667-0001

Organizations & group practices 11

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 14

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

View all 14

NPI Registry JSON

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

{
    "created_epoch": "1152057600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1323216000000",
    "number": "1922039213",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2157 MAIN ST",
            "city": "BUFFALO",
            "state": "NY",
            "postal_code": "142142648",
            "telephone_number": "716-862-1984",
            "fax_number": "716-862-1891"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2157 MAIN ST",
            "city": "BUFFALO",
            "state": "NY",
            "postal_code": "142142648",
            "telephone_number": "716-862-1984",
            "fax_number": "716-862-1891"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SIAW",
        "first_name": "PATRICK",
        "middle_name": "A",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-07-05",
        "last_updated": "2011-12-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "NY",
            "license": "211163",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "UNIVERA",
            "identifier": "00010370101",
            "state": "NY"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BLUE CROSS OF WNY",
            "identifier": "000525325005",
            "state": "NY"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "INDEPENDENT HEALTH",
            "identifier": "0410363",
            "state": "NY"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Buffalo, NY

Sources for this page

Verify at the official NPI Registry.