LAEL M. YONKER M.D.
NPI 1386849990
Pediatrics - Pediatric Pulmonology in Boston, MA
About Lael M. Yonker M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
LAEL M. YONKER M.D. (NPI 1386849990) is an individual pediatric pulmonology provider in Boston, Massachusetts, licensed in Massachusetts (242128) and active in the NPI registry since June 2007. She is enrolled in Medicare PECOS and is a graduate of University Of Massachusetts Medical School (2007).
NPPES Registry Identity
Specialties & Licenses 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Lael M. Yonker M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
3Medicare enrollment records show Lael Yonker reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,234 clinicians in this Medicare group
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,360 clinicians in this Medicare group
Tyler, TX 75701
- Reassigned Medicare billing, Texas enrollment
- 5,299 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BOSTON, MA 02114
BOSTON, MA 02114
BOSTON, MA 02114
BOSTON, MA 02114
BOSTON, MA 02114
BOSTON, MA 02114
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Lael Yonker's NPI number?
The NPI number for Lael Yonker is 1386849990. It was assigned to this individual provider in the NPPES registry on June 15, 2007.
Where is Lael Yonker located?
Lael Yonker practices at Massachusetts General Hospital 55 Fruit Street, Boston, MA 02114. The listed phone number is (617) 726-2066.
What is Lael Yonker's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Pulmonology, with taxonomy code 2080P0214X.
Is Lael Yonker enrolled in Medicare?
Yes. Lael Yonker is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Lael Yonker's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Lael Yonker reassigns Medicare benefits to 3 organizations: The General Hospital Corporation (Boston, MA), Massachusetts General Physicians Organization Inc (Boston, MA) and The University Of Texas Southwestern Medical Center At Dallas (Tyler, TX). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Lael Yonker's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Lael Yonker accept?
Health plans from Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Texas and Taro Health list Lael Yonker as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Lael Yonker was last updated on February 8, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Lael M. Yonker, M.D. · NPI 1386849990
Pediatric Pulmonology physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since June 15, 2007.
## Identity
- **NPI:** 1386849990 (Entity type: Individual)
- **Enumerated:** June 15, 2007
- **Primary specialty:** Pediatrics - Pediatric Pulmonology · taxonomy 2080P0214X
- **State license:** 242128 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREET, Boston, MA 02114
- **Phone:** (617) 726-2066
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): The General Hospital Corporation (NPI 1023049236, Boston, MA); Massachusetts General Physicians Organization Inc (NPI 1801874573, Boston, MA); The University Of Texas Southwestern Medical Center At Dallas (NPI 1417099599, Tyler, TX) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Massachusetts Medical School, class of 2007
## Record status
- **NPPES last updated:** February 8, 2019
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Source: [NPI Profile](https://npiprofile.com/npi/1386849990) · Data from the CMS NPPES public registry.