Individual provider Active NPI

Lael M. Yonker, M.D.

  • Pediatric Pulmonology Physician
  • Boston, MA
National Provider Identifier
1386849990
Registry record updated Feb 8, 2019
On this page

Key facts

NPPES NPI Registry
Primary specialty
Pediatric Pulmonology PhysicianTaxonomy code 2080P0214X
License
242128 Issued in MA
Practice address
Massachusetts General Hospital
55 Fruit Street
Boston, MA 02114
Phone
(617) 726-2066
NPI assigned
Jun 15, 2007
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Feb 8, 2019

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Pediatrics Physician 208000000X L-232241 MA
Pediatric Pulmonology Physician 2080P0214X 242128 MA Primary

Addresses

Primary practice location

Massachusetts General Hospital
55 Fruit Street
Boston, MA 02114

Mailing address

Massachusetts General Hospital
55 Fruit Street
Boston, MA 02114
Phone (617) 726-2066

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MA, TX2 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
I20130626000515 MA Practitioner - Pediatric MedicinePractitioner - Pulmonary DiseasePractitioner - Other (Physician) 3779741152 Reassigns benefits to 2 organizations
I20251229003552 TX Practitioner - Pediatric Medicine 3779741152 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Pediatric Medicine
Education
University of Massachusetts Medical School, 2007
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
University of Texas Southwestern Medical Center at DallasGroup PAC ID 0648188250, 3,156 clinicians
Massachusetts General Physicians Organization IncGroup PAC ID 2466365820, 3,494 clinicians

Practice addresses (Care Compare)

2350 N Stemmons Fwy
OB/GYN
Dallas, TX 75207-2700
Phone (469) 488-7100

55 Fruit St
Boston, MA 02114-2696
Phone (617) 724-0287

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
L-232241MAMDPediatrics Physician

Practice roles

OrganizationSpecialtyStatusNew patients
General Hospital Corp Current Accepting new patients
University of Texas Southwestern Medical Center at Dallas Pediatrics CurrentSince Oct 6, 2025 Accepting new patients
The General Hospital Corporation CurrentSince Jul 1, 2013 Accepting new patients
Massachusetts General Physicians Organization Inc Pediatrics CurrentSince Jul 1, 2013 Accepting new patients
The University of Texas Southwestern Medical Center at Dallas CurrentSince Oct 6, 2025 Accepting new patients

Locations

55 Fruit St
#2
Boston, MA 02114
Phone (617) 726-2967

55 Fruit St
Boston, MA 02114

2350 N Stemmons Fwy
Dallas, TX 75207
Phone (469) 488-7100

2222 Welborn St
Dallas, TX 75219
Phone (214) 559-5000

420 E 6th St
Ste 202
Odessa, TX 79761
Phone (214) 648-9618

7601 Preston Rd
Ste P3600
Plano, TX 75024
Phone (469) 303-3000

Interoperability endpoints

  • Direct secure messaging: yonker.lael.mgh@direct.partners.masshiway.net

Organizations & group practices 6

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.

NPI Registry JSON

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

{
    "created_epoch": "1181865600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1549584000000",
    "number": "1386849990",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "MASSACHUSETTS GENERAL HOSPITAL",
            "address_2": "55 FRUIT STREET",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "02114",
            "telephone_number": "617-726-2066"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "MASSACHUSETTS GENERAL HOSPITAL",
            "address_2": "55 FRUIT STREET",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "02114",
            "telephone_number": "617-726-2066"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "YONKER",
        "first_name": "LAEL",
        "middle_name": "M.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2007-06-15",
        "last_updated": "2019-02-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "MA",
            "license": "L-232241",
            "primary": false
        },
        {
            "code": "2080P0214X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Pediatric Pulmonology",
            "state": "MA",
            "license": "242128",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Boston, MA

Sources for this page

Verify at the official NPI Registry.