NPIMap

Individual provider Active NPI

Grigoriy Krichmar, D.O.

  • Internal Medicine Physician
  • Massapequa, NY
National Provider Identifier
1043371164
Registry record updated Jul 8, 2007
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
234331 Issued in NY
Practice address
510 Hicksville Rd
Massapequa, NY 11758-1203
Phone
(516) 795-2626
Fax
(516) 799-7451
NPI assigned
Dec 12, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 8, 2007

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 234331 NY Primary

Addresses

Primary practice location

510 Hicksville Rd
Massapequa, NY 11758-1203

Mailing address

510 Hicksville Rd
Massapequa, NY 11758-1203
Phone (516) 795-2626

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
I20050603000530 NY Practitioner - Internal Medicine 5597708206 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
Other, 2002
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Long Island Medical Services P.C.Group PAC ID 3476619867, 6 clinicians

Practice addresses (Care Compare)

2478 Jerusalem Ave
North Bellmore, NY 11710-1827
Phone (917) 573-5667

4295 Hempstead Tpke
Bethpage, NY 11714-5713
Phone (917) 573-5667

Hospital & facility affiliations

  • Gurwin Certified Home Health Agency Home health agency, Commack, NY, CCN 337413
  • Extended Home Care Home health agency, Brooklyn, NY, CCN 337414
  • Constellation Home Care Home health agency, Syosset, NY, CCN 337447
  • Girling Health Care of New York Home health agency, Brooklyn, NY, CCN 337243
  • Hospice of New York, LLC Hospice, Long Island City, NY, CCN 331560
  • Good Shepherd Hospice Hospice, Farmingdale, NY, CCN 331544
  • Hospice Care of Long Island, Queens, South Shore Hospice, Woodbury, NY, CCN 331532
  • Plainview Hospital Hospital, Plainview, NY, CCN 330331
  • NS/Lij HS Huntington Hospital Hospital, Huntington, NY, CCN 330045
  • NS/Lij HS Southside Hospital Hospital, Bay Shore, NY, CCN 330043
  • North Shore University Hospital Hospital, Manhasset, NY, CCN 330106
  • St Catherine of Siena Hospital Hospital, Smithtown, NY, CCN 330401
  • Belair Care Center Inc Nursing home, Bellmore, NY, CCN 335140
  • Gurwin Jewish Nursing and Rehabilitation Center Nursing home, Commack, NY, CCN 335696
  • Affinity Skilled Living and Rehabilitation Center Nursing home, Oakdale, NY, CCN 335839

Merit-based Incentive Payment System (MIPS)

Final score
99.54 of 100Reported as individual
Quality
91.15
Improvement activities
40
Cost
77.2

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Fulton Medical, P.C. Internal Medicine CurrentSince Oct 12, 2012 Accepting new patients
Long Island Medical Services P.C. Internal Medicine CurrentSince Sep 1, 2008 Accepting new patients
The Rosalind and Joseph Gurwin Jewish Geriatric Center of Long Island Past Accepting new patients
Oakwood Operating Co, LLC Past Accepting new patients
Hematology and Oncology of Li PLLC Past Accepting new patients
Belair Care Center, Inc. Past Accepting new patients
Laura Ploetzke Adult Health Nurse Practitioner, PC Past Accepting new patients

Locations

4295 Hempstead Tpke
Bethpage, NY 11714
Phone (516) 520-2250

68 Hauppauge Rd
Commack, NY 11725
Phone (631) 499-6500

5353 Merrick Rd
Massapequa, NY 11758
Phone (516) 798-1800

400 S Service Rd
Melville, NY 11747
Phone (631) 439-3000

2478 Jerusalem Ave
North Bellmore, NY 11710
Phone (516) 317-1681

305 Locust Ave
Oakdale, NY 11769
Phone (631) 218-5900

888 Old Country Rd
Plainview, NY 11803
Phone (516) 719-2543

60 Queens St
Ste 100
Syosset, NY 11791
Phone (347) 267-0904

378 Syosset Woodbury Rd
Woodbury, NY 11797
Phone (516) 622-7784

Interoperability endpoints

  • Direct secure messaging: gkrichmar422985@nyumc.direct-ci.com

Ownership & related parties

All facility ownership & control disclosures 2

Facilities whose Medicare enrollment lists this provider’s PECOS associate ID as an owner or managing party.

FacilityTypeRoleSince
Gurwin Jewish Nursing and Rehabilitation CenterCommack, NY, CCN 335696 Skilled nursing facility Operational/Managerial Control
Adp of the SNF		 Mar 1, 2023
Jun 27, 2025
Belair Nursing and Rehabilitation CenterNorth Bellmore, NY, CCN 335140 Skilled nursing facility Operational/Managerial Control
Adp of the SNF		 Jan 1, 2008
Jul 14, 2025

Owned or controlled facilities with NPI records 2

Facilities whose Medicare enrollment lists this provider as an owner, officer, director or managing party.

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 15

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

View all 15

NPI Registry JSON

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

{
    "created_epoch": "1165881600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1183852800000",
    "number": "1043371164",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "510 HICKSVILLE RD",
            "city": "MASSAPEQUA",
            "state": "NY",
            "postal_code": "117581203",
            "telephone_number": "516-795-2626",
            "fax_number": "516-799-7451"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "510 HICKSVILLE RD",
            "city": "MASSAPEQUA",
            "state": "NY",
            "postal_code": "117581203",
            "telephone_number": "516-795-2626",
            "fax_number": "516-799-7451"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "KRICHMAR",
        "first_name": "GRIGORIY",
        "name_prefix": "Dr.",
        "credential": "D.O.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-12-12",
        "last_updated": "2007-07-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "NY",
            "license": "234331",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Massapequa, NY

Sources for this page

Verify at the official NPI Registry.