Dr Irl J Don, MD - Medicare Internal Medicine in Saint Louis, MO

Dr Irl J Don, MD is a medicare enrolled "Internal Medicine" physician in Saint Louis, Missouri. He went to Washington University School Of Medicine and graduated in 1972 and has 52 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Washington University and his current practice location is 4901 Forest Park Ave, Div Im General Med, Ste 241, Saint Louis, Missouri. You can reach out to his office (for appointments etc.) via phone at (314) 362-5060.

Dr Irl J Don is licensed to practice in Missouri (license number R3E59) 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 1588616601.

Contact Information

Dr Irl J Don, MD
4901 Forest Park Ave, Div Im General Med, Ste 241,
Saint Louis, MO 63108-1495
(314) 362-5060
(314) 362-6959

Map and Direction




Physician's Profile

Full NameDr Irl J Don
GenderMale
SpecialityInternal Medicine
Experience52 Years
Location4901 Forest Park Ave, 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 Irl J Don attended and graduated from Washington University School Of Medicine in 1972
  NPI Data:
  • NPI Number: 1588616601
  • Provider Enumeration Date: 05/17/2006
  • Last Update Date: 04/25/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 5799733143
  • Enrollment ID: I20050112000333

Medical Identifiers

Medical identifiers for Dr Irl J Don such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1588616601NPI-NPPES
206768608MedicaidMO

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine R3E59 (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 Irl J Don allows following entities to bill medicare on his behalf.
Entity NameSsm Health Care St Louis
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1275586174
PECOS PAC ID: 7810800737
Enrollment ID: O20031118000393
Entity NameWashington University
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1992746903
PECOS PAC ID: 9830008770
Enrollment ID: O20031119000372

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 Irl J Don 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 Irl J Don, MD
Po Box 60352,
Saint Louis, MO 63160-0352

Ph: (314) 362-5060
Dr Irl J Don, MD
4901 Forest Park Ave, Div Im General Med, Ste 241,
Saint Louis, MO 63108-1495

Ph: (314) 362-5060

Reviews and Comments


Internal Medicine Doctors in Saint Louis, MO

Dr. Isik Turker, MD
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Phone: 314-362-1291    Fax: 314-362-4278
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Dr. Faris Adam Bakeer, MD
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Phone: 314-362-1700    Fax: 314-362-9878
Dr. Rehan Rais, MD
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Phone: 314-362-1700    Fax: 314-362-9878
Nathan Farkas, M.D.
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Phone: 314-362-1930    
Dr. Randy Olivier Laine, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 1 Barnes Jewish Hospital Plz, Div Im Hospitalist, Saint Louis, MO 63110
Phone: 314-362-1700    Fax: 314-362-9878
Dr. Erin Leigh Dyer, MD
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 4901 Forest Park Ave, Div Im General Med, Ste 241, Saint Louis, MO 63108
Phone: 314-362-5060    Fax: 314-362-6959

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.