Dr Leslie Stewart Massad, MD - Medicare Gynecological Oncology in Saint Louis, MO

Dr Leslie Stewart Massad, MD is a medicare enrolled "Obstetrics & Gynecology - Gynecologic Oncology" physician in Saint Louis, Missouri. He went to Duke University School Of Medicine and graduated in 1984 and has 40 years of diverse experience with area of expertise as Gynecological Oncology. He is a member of the group practice Washington University and his current practice location is 4921 Parkview Pl, Div Obgyn Gynecologic Oncology, Ste 13c, Saint Louis, Missouri. You can reach out to his office (for appointments etc.) via phone at (314) 362-3181.

Dr Leslie Stewart Massad is licensed to practice in Missouri (license number 2007025204) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1366423360.

Contact Information

Dr Leslie Stewart Massad, MD
4921 Parkview Pl, Div Obgyn Gynecologic Oncology, Ste 13c,
Saint Louis, MO 63110-1032
(314) 362-3181
(314) 362-2893

Map and Direction




Physician's Profile

Full NameDr Leslie Stewart Massad
GenderMale
SpecialityGynecological Oncology
Experience40 Years
Location4921 Parkview Pl, Saint Louis, Missouri
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Leslie Stewart Massad attended and graduated from Duke University School Of Medicine in 1984
  NPI Data:
  • NPI Number: 1366423360
  • Provider Enumeration Date: 11/08/2005
  • Last Update Date: 04/25/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 5294822789
  • Enrollment ID: I20071031000081

Medical Identifiers

Medical identifiers for Dr Leslie Stewart Massad such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1366423360NPI-NPPES
202889713MedicaidMO

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207VX0201XObstetrics & Gynecology - Gynecologic Oncology 2007025204 (Missouri)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Barnes Jewish HospitalSaint louis, MOHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Washington University98300087702516

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Dr Leslie Stewart Massad allows following entities to bill medicare on his behalf.
Entity NameWashington University
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1760422265
PECOS PAC ID: 9830008770
Enrollment ID: O20040812001332

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Dr Leslie Stewart Massad is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Dr Leslie Stewart Massad, MD
Po Box 60352,
Saint Louis, MO 63160-0352

Ph: (314) 362-3181
Dr Leslie Stewart Massad, MD
4921 Parkview Pl, Div Obgyn Gynecologic Oncology, Ste 13c,
Saint Louis, MO 63110-1032

Ph: (314) 362-3181

Reviews and Comments


Obstetrics & Gynecology Doctors in Saint Louis, MO

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Dr. Ann Marie S Rockamann, M.D.
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Phone: 314-996-4880    
Dr. Haifaa T. Younis, M.D
Obstetrics & Gynecology
Medicare: Medicare Enrolled
Practice Location: 2315 Dougherty Ferry Rd, Suite 109b, Saint Louis, MO 63122
Phone: 314-965-5553    Fax: 314-590-5972
Dr. Renee M Stein, M.D.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 10777 Sunset Office Dr, Suite 200, Saint Louis, MO 63127
Phone: 314-842-4802    Fax: 314-849-8721

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

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