Gregory P Mclennan Ii, MD - Medicare Urology in Saint Louis, MO

Gregory P Mclennan Ii, MD is a medicare enrolled "Urology" physician in Saint Louis, Missouri. He went to Saint Louis University School Of Medicine and graduated in 2008 and has 16 years of diverse experience with area of expertise as Urology. He is a member of the group practice Mercy Clinic Urology Llc, Blessing Hospital and his current practice location is 701 S. New Ballas Road, Suite 330, Saint Louis, Missouri. You can reach out to his office (for appointments etc.) via phone at (314) 251-8850.

Gregory P Mclennan Ii is licensed to practice in Missouri (license number 2014009247) and he also participates in the medicare program. He may accept medicare assignments (which means he may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance) and his NPI Number is 1912160052.

Contact Information

Gregory P Mclennan Ii, MD
701 S. New Ballas Road, Suite 330,
Saint Louis, MO 63141
(314) 251-8850
Not Available

Map and Direction




Physician's Profile

Full NameGregory P Mclennan Ii
GenderMale
SpecialityUrology
Experience16 Years
Location701 S. New Ballas Road, Suite 330, Saint Louis, Missouri
Accepts Medicare AssignmentsMay be. He may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Gregory P Mclennan Ii attended and graduated from Saint Louis University School Of Medicine in 2008
  NPI Data:
  • NPI Number: 1912160052
  • Provider Enumeration Date: 07/09/2008
  • Last Update Date: 07/13/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 8628209327
  • Enrollment ID: I20140828000428

Medical Identifiers

Medical identifiers for Gregory P Mclennan Ii such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1912160052NPI-NPPES
P01366917OtherMORAILROAD MEDICARE
1912160052MedicaidMO

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208800000XUrology 2014009247 (Missouri)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Mercy Hospital St LouisSaint louis, MOHospital
Blessing HospitalQuincy, ILHospital
Mercy Hospital SouthSaint louis, MOHospital
Mercy Hospital WashingtonWashington, MOHospital
Mercy Hospital LincolnTroy, MOHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Mercy Clinic Urology Llc539576825323
Blessing Hospital3072422534345

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. Gregory P Mclennan Ii allows following entities to bill medicare on his behalf.
Entity NameMercy Hospitals East Communities
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1851431738
PECOS PAC ID: 1658276811
Enrollment ID: O20031218000107
Entity NameMercy Clinic Urology Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1669502274
PECOS PAC ID: 5395768253
Enrollment ID: O20060220000502

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. Gregory P Mclennan Ii 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
Gregory P Mclennan Ii, MD
701 S. New Ballas Road, Suite 330,
Saint Louis, MO 63141

Ph: (314) 251-8850
Gregory P Mclennan Ii, MD
701 S. New Ballas Road, Suite 330,
Saint Louis, MO 63141

Ph: (314) 251-8850

Reviews and Comments


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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.