Dr Michael Harry Mastromichalis, MD - Medicare Urology in Fenton, MO

Dr Michael Harry Mastromichalis, MD is a medicare enrolled "Urology" physician in Fenton, Missouri. He went to West Virginia University School Of Medicine and graduated in 2005 and has 19 years of diverse experience with area of expertise as Urology. He is a member of the group practice Ths Physician Partners Inc and his current practice location is 1011 Bowles Ave Ste 425, Fenton, Missouri. You can reach out to his office (for appointments etc.) via phone at (636) 496-5030.

Dr Michael Harry Mastromichalis is licensed to practice in Missouri (license number 2008016598) 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 1346444700.

Contact Information

Dr Michael Harry Mastromichalis, MD
1011 Bowles Ave Ste 425,
Fenton, MO 63026-2384
(636) 496-5030
(636) 496-5025

Map and Direction




Physician's Profile

Full NameDr Michael Harry Mastromichalis
GenderMale
SpecialityUrology
Experience19 Years
Location1011 Bowles Ave Ste 425, Fenton, 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 Michael Harry Mastromichalis attended and graduated from West Virginia University School Of Medicine in 2005
  NPI Data:
  • NPI Number: 1346444700
  • Provider Enumeration Date: 06/12/2007
  • Last Update Date: 11/05/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 4284789330
  • Enrollment ID: I20230712001232

Medical Identifiers

Medical identifiers for Dr Michael Harry Mastromichalis such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1346444700NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208800000XUrology 2008016598 (Missouri)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Thomas Memorial HospitalSouth charleston, WVHospital
Ssm St Clare Health CenterFenton, MOHospital
Charleston Area Medical CenterCharleston, WVHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Ths Physician Partners Inc9537316393135

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 Michael Harry Mastromichalis allows following entities to bill medicare on his behalf.
Entity NameThs Physician Partners Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1871866806
PECOS PAC ID: 9537316393
Enrollment ID: O20120829000738

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 Michael Harry Mastromichalis 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 Michael Harry Mastromichalis, MD
Po Box 955534,
Saint Louis, MO 63195-5534

Ph: () -
Dr Michael Harry Mastromichalis, MD
1011 Bowles Ave Ste 425,
Fenton, MO 63026-2384

Ph: (636) 496-5030

Reviews and Comments


Urology Doctors in Fenton, MO


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.