Gary David Koenig, MD - Medicare Gastroenterology in Hazelwood, MO

Gary David Koenig, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Hazelwood, Missouri. He went to Saint Louis University School Of Medicine and graduated in 1986 and has 38 years of diverse experience with area of expertise as Gastroenterology. He is a member of the group practice American Multispecialty Group Inc and his current practice location is 100 Village Sq, Hazelwood, Missouri. You can reach out to his office (for appointments etc.) via phone at (314) 355-4010.

Gary David Koenig is licensed to practice in Missouri (license number MDR3G44) 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 1861485724.

Contact Information

Gary David Koenig, MD
100 Village Sq,
Hazelwood, MO 63042-1820
(314) 355-4010
(314) 355-9484



Physician's Profile

Full NameGary David Koenig
GenderMale
SpecialityGastroenterology
Experience38 Years
Location100 Village Sq, Hazelwood, 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:
  • Gary David Koenig attended and graduated from Saint Louis University School Of Medicine in 1986
  NPI Data:
  • NPI Number: 1861485724
  • Provider Enumeration Date: 08/25/2005
  • Last Update Date: 09/02/2016
  Medicare PECOS Information:
  • PECOS PAC ID: 9335169887
  • Enrollment ID: I20090803000025

Medical Identifiers

Medical identifiers for Gary David Koenig such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1861485724NPI-NPPES
202823316MedicaidMO

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology MDR3G44 (Missouri)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Ssm Health St Mary's Hospital - St LouisRichmond heights, MOHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
American Multispecialty Group Inc1658365572151

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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. Gary David Koenig allows following entities to bill medicare on his behalf.
Entity NameAmerican Multispecialty Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1972559532
PECOS PAC ID: 1658365572
Enrollment ID: O20040413001412

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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. Gary David Koenig 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
Gary David Koenig, MD
Po Box 23340,
Saint Louis, MO 63156-3340

Ph: (314) 355-4010
Gary David Koenig, MD
100 Village Sq,
Hazelwood, MO 63042-1820

Ph: (314) 355-4010

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Internal Medicine Doctors in Hazelwood, MO

Erin Rice Fick, D.O.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 637 Dunn Rd Ste 170, Hazelwood, MO 63042
Phone: 314-838-5702    Fax: 314-839-5596
Eldad Shaul Bialecki, M.D.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 100 Village Sq, Hazelwood, MO 63042
Phone: 314-355-4010    Fax: 314-355-9484
Dr. Atinuke Oladayo Aluko, MD
Gastroenterology
Medicare: Medicare Enrolled
Practice Location: 1 Village Square Shop Ctr, Div Im Rheumatology, Ste 1, Hazelwood, MO 63042
Phone: 314-286-2635    Fax: 314-286-2338
Joyce Boehmer, M.D.
Gastroenterology
Medicare: Not Enrolled in Medicare
Practice Location: 637 Dunn Rd Ste 170, Hazelwood, MO 63042
Phone: 314-838-5702    Fax: 314-839-5596
Scott Anderson, M.D.
Gastroenterology
Medicare: Not Enrolled in Medicare
Practice Location: 637 Dunn Rd Ste 170, Hazelwood, MO 63042
Phone: 314-838-5702    Fax: 314-839-5596
Marie E. Campagna, M.D.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 637 Dunn Rd Ste 170, Hazelwood, MO 63042
Phone: 314-838-5702    Fax: 314-839-5596
Edward Jamal Duqum, DO
Gastroenterology
Medicare: Medicare Enrolled
Practice Location: 755 Dunn Rd Ste 110, Hazelwood, MO 63042
Phone: 314-731-1113    

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