DR. LESLIE STEWART MASSAD MD
NPI 1366423360
Obstetrics & Gynecology - Gynecologic Oncology in Saint Louis, MO
About Dr. Leslie Stewart Massad Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. LESLIE STEWART MASSAD MD (NPI 1366423360) is an individual gynecologic oncology provider in Saint Louis, Missouri, licensed in Missouri (2007025204) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS, is affiliated with Barnes Jewish Hospital, and is a graduate of Duke University School Of Medicine (1984).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Accepted Insurance
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. Leslie Stewart Massad 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 4
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
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 Leslie Massad's NPI number?
The NPI number for Leslie Massad is 1366423360. It was assigned to this individual provider in the NPPES registry on November 8, 2005.
Where is Leslie Massad located?
Leslie Massad practices at 4921 Parkview Pl Div Obgyn Gynecologic Oncology, Ste 13C, Saint Louis, MO 63110. The listed phone number is (314) 362-3181.
What is Leslie Massad's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Gynecologic Oncology, with taxonomy code 207VX0201X.
Is Leslie Massad enrolled in Medicare?
Yes. Leslie Massad 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.
What insurance does Leslie Massad accept?
Health plans from Cox HealthPlans list Leslie Massad 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.
Is Leslie Massad affiliated with any hospitals?
According to CMS data, Leslie Massad is affiliated with Barnes Jewish Hospital.
When was this NPI record last updated?
The NPPES record for Leslie Massad was last updated on April 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months 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.
