Dr Stephen J Ilario, MD - Medicare Orthopedic Surgery in Largo, MD

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Dr Stephen J Ilario, MD is a medicare enrolled "Orthopaedic Surgery" physician in Largo, Maryland. He went to State University Of New York Downstate Medical Center and graduated in 1996 and has 28 years of diverse experience with area of expertise as Orthopedic Surgery. He is a member of the group practice Kaiser Foundation Health Plan Of The Mid-atlantic States, Inc, Kaiser Foundation Health Plan Of The Mid-atlantic States, Inc and his current practice location is 1221 Mercantile Ln, Largo, Maryland. You can reach out to his office (for appointments etc.) via phone at (301) 618-5796.

Dr Stephen J Ilario is licensed to practice in Maryland (license number D65059) 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 1164425419.

Contact Information

Dr Stephen J Ilario, MD
1221 Mercantile Ln,
Largo, MD 20774-5374
(301) 618-5796
(301) 618-5585

Map and Direction




Physician's Profile

Full NameDr Stephen J Ilario
GenderMale
SpecialityOrthopedic Surgery
Experience28 Years
Location1221 Mercantile Ln, Largo, Maryland
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 Stephen J Ilario attended and graduated from State University Of New York Downstate Medical Center in 1996
  NPI Data:
  • NPI Number: 1164425419
  • Provider Enumeration Date: 05/31/2005
  • Last Update Date: 06/06/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 7214911023
  • Enrollment ID: I20091112000412

Medical Identifiers

Medical identifiers for Dr Stephen J Ilario such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1164425419NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207X00000XOrthopaedic Surgery D65059 (Maryland)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Suburban HospitalBethesda, MDHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Kaiser Foundation Health Plan Of The Mid-atlantic States, Inc37794958581628
Kaiser Foundation Health Plan Of The Mid-atlantic States, Inc37794958581628

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 Stephen J Ilario allows following entities to bill medicare on his behalf.
Entity NameKaiser Foundation Health Plan Of The Mid-atlantic States, Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1952461816
PECOS PAC ID: 3779495858
Enrollment ID: O20040105000308
Entity NameKaiser Foundation Health Plan Of The Mid-atlantic States, Inc
Entity TypePart B Supplier - Ambulatory Surgical Center
Entity IdentifiersNPI Number: 1578638425
PECOS PAC ID: 3779495858
Enrollment ID: O20040805001280
Entity NameKaiser Foundation Health Plan Of The Mid-atlantic States, Inc
Entity TypePart B Supplier - Ambulatory Surgical Center
Entity IdentifiersNPI Number: 1073678637
PECOS PAC ID: 3779495858
Enrollment ID: O20100729000796
Entity NameKaiser Foundation Health Plan Of The Mid-atlantic States, Inc
Entity TypePart B Supplier - Ambulatory Surgical Center
Entity IdentifiersNPI Number: 1366781700
PECOS PAC ID: 3779495858
Enrollment ID: O20130507000207
Entity NameKaiser Foundation Health Plan Of The Mid-atlantic States, Inc
Entity TypePart B Supplier - Ambulatory Surgical Center
Entity IdentifiersNPI Number: 1497023188
PECOS PAC ID: 3779495858
Enrollment ID: O20131029000108

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 Stephen J Ilario 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 Stephen J Ilario, MD
2501 Porter St Nw Apt 310,
Washington, DC 20008-1250

Ph: (914) 450-1979		Dr Stephen J Ilario, MD
1221 Mercantile Ln,
Largo, MD 20774-5374

Ph: (301) 618-5796

Reviews and Comments


Orthopaedic Surgery Doctors in Largo, MD

Keona M. Holliday, MS, PA-C
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 9333 Healthcare Way, Largo, MD 20774
Phone: 240-677-2224    Fax: 240-677-0028
Dr. Maurice Davin Cates, MD
Orthopedic Surgery
Medicare: Medicare Enrolled
Practice Location: 1221 Mercantile Lane, Largo, MD 20774
Phone: 301-618-5578    Fax: 301-618-5673

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.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.