DR. MARGARET LEIGHTON MCNAIRY MD
NPI 1003033184
Hospitalist in Saint Louis, MO
About Dr. Margaret Leighton Mcnairy Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARGARET LEIGHTON MCNAIRY MD (NPI 1003033184) is an individual hospitalist provider in Saint Louis, Missouri, licensed in Missouri (2025051392) and active in the NPI registry since April 2007. She is enrolled in Medicare PECOS, is affiliated with Barnes Jewish Hospital, and is a graduate of Harvard Medical School (2005).
NPPES Registry Identity
Specialties & Licenses 2
Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Margaret Leighton Mcnairy Md 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.
Areas of Expertise CMS Part B claims 2
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Barnes Jewish Hospital
Acute Care Hospitals · Saint Louis, MOPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63110 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
SAINT LOUIS, MO 63110
SAINT LOUIS, MO 63110
SAINT LOUIS, MO 63110
SAINT LOUIS, MO 63110
SAINT LOUIS, MO 63110
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 Margaret Mcnairy's NPI number?
The NPI number for Margaret Mcnairy is 1003033184. It was assigned to this individual provider in the NPPES registry on April 19, 2007.
Where is Margaret Mcnairy located?
Margaret Mcnairy practices at 1 Barnes Jewish Hospital Plz Div Im Hospitalist, Saint Louis, MO 63110. The listed phone number is (314) 362-1700.
What is Margaret Mcnairy's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Margaret Mcnairy enrolled in Medicare?
Yes. Margaret Mcnairy 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.
Is Margaret Mcnairy affiliated with any hospitals?
According to CMS data, Margaret Mcnairy is affiliated with Barnes Jewish Hospital.
When was this NPI record last updated?
The NPPES record for Margaret Mcnairy was last updated on December 29, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.
