Irim A Massay, MD - Medicare Internal Medicine in Saint Charles, MO

Irim A Massay, MD is a medicare enrolled "Internal Medicine" physician in Saint Charles, Missouri. Her current practice location is 300 1st Capitol Dr, Saint Charles, Missouri. You can reach out to her office (for appointments etc.) via phone at (314) 317-0600.

Irim A Massay is licensed to practice in Missouri (license number 2008017169) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1619931110.

Contact Information

Irim A Massay, MD
300 1st Capitol Dr,
Saint Charles, MO 63301-2844
(314) 317-0600
(314) 317-0606

Map and Direction




Physician's Profile

Full NameIrim A Massay
GenderFemale
SpecialityInternal Medicine
Location300 1st Capitol Dr, Saint Charles, Missouri
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1619931110
  • Provider Enumeration Date: 04/13/2006
  • Last Update Date: 06/16/2018
  Medicare PECOS Information:
  • PECOS PAC ID: 0446283253
  • Enrollment ID: I20080813000867

Medical Identifiers

Medical identifiers for Irim A Massay such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1619931110NPI-NPPES
1619931110MedicaidMO
1619931110MedicaidIL

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208M00000XHospitalist 2008017169 (Missouri)Secondary
207R00000XInternal Medicine 2008017169 (Missouri)Primary

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. Irim A Massay allows following entities to bill medicare on her behalf.
Entity NameSoutheastern Physician Services Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1083835441
PECOS PAC ID: 0042307852
Enrollment ID: O20160809000235
Entity NameIpc Pac Healthcare Services Of Missouri Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1326497587
PECOS PAC ID: 4587950589
Enrollment ID: O20160830002898

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. Irim A Massay 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
Irim A Massay, MD
12101 Woodcrest Executive Dr, Suite 210,
Saint Louis, MO 63141-5047

Ph: (314) 317-0600
Irim A Massay, MD
300 1st Capitol Dr,
Saint Charles, MO 63301-2844

Ph: (314) 317-0600

Reviews and Comments


Internal Medicine Doctors in Saint Charles, MO

Lawrence Stephen Tierney, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 400 1st Capitol Dr Ste 201, Saint Charles, MO 63301
Phone: 636-669-2332    
Syed A Khalid, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 300 1st Capitol Dr, Saint Charles, MO 63301
Phone: 636-647-5000    Fax: 636-947-5090
Guangchen Zou, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 1820 Zumbehl Rd Ste 120, Saint Charles, MO 63303
Phone: 314-801-5350    Fax: 314-801-5323
Dr. Stephen M Comens, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 1551 Wall St, 4th Floor, Saint Charles, MO 63303
Phone: 636-669-2220    Fax: 636-669-2401
Dr. Shephali Himanshu Wulff, D.O
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 330 1st Capitol Dr Ste 260, Saint Charles, MO 63301
Phone: 636-925-0900    
Keith Wickenhauser, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 711 Veterans Memorial Pkwy Ste 300, Saint Charles, MO 63303
Phone: 636-669-2350    
Jerome E Thurman, M.D.,F.A.C.E.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 711 Veterans Memorial Pkwy Ste 200, Saint Charles, MO 63303
Phone: 636-669-2219    Fax: 636-669-2380

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.