NPIMap

Individual provider Active NPI

David Christopher Gajzer, M.D.

  • Clinical Pathology/Laboratory Medicine Physician
  • New York, NY
National Provider Identifier
1124430095
Registry record updated Mar 3, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Clinical Pathology/Laboratory Medicine PhysicianTaxonomy code 207ZP0105X
License
338479 Issued in NY
Practice address
1468 Madison Ave
New York, NY 10029-6508
Phone
(212) 241-6500
NPI assigned
May 28, 2014
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Mar 3, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Clinical Pathology/Laboratory Medicine Physician 207ZP0105X 338479 NY Primary

Addresses

Primary practice location

1468 Madison Ave
New York, NY 10029-6508

Mailing address

PO Box 50095
Seattle, WA 98145-5095

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in WA, NY2 enrollments
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20210830000753 WA Practitioner - Pathology 7012312069 Reassigns benefits to 1 organization
I20251227000112 NY Practitioner - Pathology 7012312069 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Pathology
Education
Other, 2009
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
The Association of University PhysiciansGroup PAC ID 0446162697, 3,484 clinicians

Practice addresses (Care Compare)

1468 Madison Ave
New York, NY 10029-6508
Phone (212) 731-7772

3201 Kings Hwy
Brooklyn, NY 11234-2625
Phone (718) 252-3000

5 E 98TH St
FL 6
New York, NY 10029-6501
Phone (212) 241-2221

825 Eastlake Ave E
Seattle, WA 98109-4405
Phone (206) 288-1000

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
93.85 of 100Reported as apm
Quality
74.6
Promoting interoperability
100
Improvement activities
40

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
338479NYMDClinical Pathology/Laboratory Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Icahn School of Medicine at Mount Sinai CurrentSince Nov 1, 2025 Accepting new patients
Icahn School of Medicine at Mount Sinai CurrentSince Nov 1, 2025 Accepting new patients
The Association of University Physicians CurrentSince Aug 12, 2021 Accepting new patients

Locations

2510 30th Ave
Long Island City, NY 11102
Phone (718) 267-4245

5 E 98th St
Fl 6
New York, NY 10029
Phone (212) 241-2221

1468 Madison Ave
New York, NY 10029
Phone (212) 241-0440

825 Eastlake Ave E
Seattle, WA 98109
Phone (206) 288-1000

1959 NE Pacific St
Seattle, WA 98195
Phone (206) 598-4333

Networks

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

Organizations & group practices 3

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 9

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": "1401235200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1772496000000",
    "number": "1124430095",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 50095",
            "city": "SEATTLE",
            "state": "WA",
            "postal_code": "981455095",
            "fax_number": "305-243-1624"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1468 MADISON AVE",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100296508",
            "telephone_number": "212-241-6500"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GAJZER",
        "first_name": "DAVID",
        "middle_name": "CHRISTOPHER",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2014-05-28",
        "last_updated": "2026-03-03",
        "certification_date": "2026-03-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207ZP0105X",
            "taxonomy_group": "",
            "desc": "Pathology, Clinical Pathology/Laboratory Medicine",
            "state": "NY",
            "license": "338479",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in New York, NY

Sources for this page

Verify at the official NPI Registry.