Individual provider Active NPI

Megan Barnhart McGreevy, MD

  • Pediatric Cardiology Physician
  • Buffalo, NY
National Provider Identifier
1740423698
Registry record updated Aug 18, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Pediatric Cardiology PhysicianTaxonomy code 2080P0202X
License
MD442116 Issued in PA
Practice address
936 Delaware Ave
Buffalo, NY 14209-1880
Phone
(716) 885-5437
NPI assigned
Apr 8, 2009
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Aug 18, 2026

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Pediatrics Physician 208000000X 279811 NY
Pediatrics Physician 208000000X MT193072 PA
Pediatric Cardiology Physician 2080P0202X MD442116 PA Primary

Addresses

Primary practice location

936 Delaware Ave
Buffalo, NY 14209-1880

Mailing address

30 Redbrick Rd
Orchard Park, NY 14127-3940
Phone (716) 573-9550

Other practice location 1

232 W 25th St
Erie, PA 16544-1880
Phone (814) 452-5853

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address mmcgreevy169366@upmc.direct-ci.com

Medicare participation

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

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20110629000557 PA Practitioner - Pediatric MedicinePractitioner - Cardiovascular Disease (Cardiology) 2567640105 Reassigns benefits to 2 organizations
I20151230000007 NY Practitioner - Pediatric Medicine 2567640105 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
Pediatric MedicineAlso: Cardiovascular Disease (Cardiology)
Education
Other, 2008
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
University of Pittsburgh PhysiciansGroup PAC ID 8729990239, 4,166 clinicians

Practice addresses (Care Compare)

4401 Penn Ave
Pittsburgh, PA 15224-1334
Phone (412) 692-9513

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
279811NYMDLicensed Practical Nurse
MT193072PAMDPediatrics Physician

Practice roles

OrganizationSpecialtyStatusNew patients
St Vincent Medical Education and Research Institute Inc Pediatrics CurrentSince Mar 5, 2024 Accepting new patients
Pediatric Cardiology Pediatrics CurrentSince May 18, 2019 Accepting new patients
Great Lakes Physician Practice PC CurrentSince Feb 1, 2023 Accepting new patients
Jamestown Area Medical Associates, L.L.P. CurrentSince Jun 1, 1997 Accepting new patients
University of Pittsburgh Physicians Pediatrics CurrentSince Feb 1, 2022 Accepting new patients
University of Pittsburgh Physicians Current Accepting new patients
University at Buffalo Pediatric Associates Inc Pediatrics CurrentSince Dec 1, 2019 Accepting new patients
University of Pittsburgh Physicians CurrentSince Feb 1, 2022 Accepting new patients
Upmc Emergency Medicine Inc Past Accepting new patients

Locations

936 Delaware Ave
Ste 100
Buffalo, NY 14209
Phone (716) 389-3268

1404 Sweet Home Rd
Buffalo, NY 14228
Phone (716) 932-6060

1404 Sweet Home Rd
Ste 56
Buffalo, NY 14228
Phone (716) 639-9361

15 S Main St
Ste 110
Jamestown, NY 14701
Phone (716) 483-2320

31 Sherman St
Ste 2400
Jamestown, NY 14701
Phone (814) 483-5306

601 Elmwood Ave
Rochester, NY 14642
Phone (585) 275-9555

5300 Military Rd
Stela Niagara, NY 14092
Phone (716) 297-4800

155 E State St
Albion, PA 16401
Phone (814) 756-4917

232 W 25th St
Erie, PA 16544
Phone (814) 452-5337

2 Hot Metal St
Bldg 3RD
Pittsburgh, PA 15203

4401 Penn Ave
Fl 3
Pittsburgh, PA 15224
Phone (412) 692-5135

2 Hot Metal St
#One
Pittsburgh, PA 15203
Phone (412) 432-5864

519 Penn Ave
Ste 206
Turtle Creek, PA 15145
Phone (412) 823-3121

Interoperability endpoints

  • Direct secure messaging: mmcgreevy169366@upmc.direct-ci.com

Organizations & group practices 9

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": "1239148800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1787011200000",
    "number": "1740423698",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "30 REDBRICK RD",
            "city": "ORCHARD PARK",
            "state": "NY",
            "postal_code": "141273940",
            "telephone_number": "716-573-9550"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "936 DELAWARE AVE",
            "city": "BUFFALO",
            "state": "NY",
            "postal_code": "142091880",
            "telephone_number": "716-885-5437"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "232 W 25th St",
            "address_purpose": "LOCATION",
            "city": "Erie",
            "state": "PA",
            "postal_code": "165441880",
            "country_code": "US",
            "telephone_number": "814-452-5853",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MCGREEVY",
        "first_name": "MEGAN",
        "middle_name": "BARNHART",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2009-04-08",
        "last_updated": "2026-08-18",
        "certification_date": "2024-04-04",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "NY",
            "license": "279811",
            "primary": false
        },
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "PA",
            "license": "MT193072",
            "primary": false
        },
        {
            "code": "2080P0202X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Pediatric Cardiology",
            "state": "PA",
            "license": "MD442116",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "mmcgreevy169366@upmc.direct-ci.com",
            "affiliation": "N",
            "address_1": "600 Grant St",
            "address_2": "Floor 58",
            "city": "Pittsburgh",
            "state": "PA",
            "country_code": "US",
            "postal_code": "152192702",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Buffalo, NY

Sources for this page

Verify at the official NPI Registry.