Dr Gregory B Auffenberg, MD, MS - Medicare Urology in Saint Louis, MO

Dr Gregory B Auffenberg, MD, MS is a medicare enrolled "Urology" physician in Saint Louis, Missouri. He went to Northwestern University Feinberg Medical School and graduated in 2009 and has 15 years of diverse experience with area of expertise as Urology. He is a member of the group practice Ahs Il Medical Group Llc, Urology Of St. Louis, Inc, Urology Of St. Louis, Inc and his current practice location is 12855 N 40 Dr Ste 350, Saint Louis, Missouri. You can reach out to his office (for appointments etc.) via phone at (314) 567-6071.

Dr Gregory B Auffenberg is licensed to practice in Missouri (license number 2021039448) 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 1396977328.

Contact Information

Dr Gregory B Auffenberg, MD, MS
12855 N 40 Dr Ste 350,
Saint Louis, MO 63141-8669
(314) 567-6071
(314) 453-9965

Map and Direction




Physician's Profile

Full NameDr Gregory B Auffenberg
GenderMale
SpecialityUrology
Experience15 Years
Location12855 N 40 Dr Ste 350, 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 Gregory B Auffenberg attended and graduated from Northwestern University Feinberg Medical School in 2009
  NPI Data:
  • NPI Number: 1396977328
  • Provider Enumeration Date: 08/08/2009
  • Last Update Date: 09/12/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 0941513402
  • Enrollment ID: I20180717000433

Medical Identifiers

Medical identifiers for Dr Gregory B Auffenberg such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1396977328NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208800000XUrology 036132771 (Illinois)Secondary
208800000XUrology 2021039448 (Missouri)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Missouri Baptist Medical CenterTown and country, MOHospital
St Lukes HospitalChesterfield, MOHospital
Alton Memorial HospitalAlton, ILHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Ahs Il Medical Group Llc549611167655
Urology Of St. Louis, Inc620472378659
Urology Of St. Louis, Inc620472378659

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 Gregory B Auffenberg allows following entities to bill medicare on his behalf.
Entity NameUrology Of St. Louis, Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1528017191
PECOS PAC ID: 6204723786
Enrollment ID: O20050502001141
Entity NameOsf Multi-specialty Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1922445527
PECOS PAC ID: 3678889789
Enrollment ID: O20150904000279
Entity NameAhs Il Medical Group Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1659098101
PECOS PAC ID: 5496111676
Enrollment ID: O20230512001300

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 Gregory B Auffenberg 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 Gregory B Auffenberg, MD, MS
12855 N 40 Dr Ste 375,
Saint Louis, MO 63141-8657

Ph: (314) 567-6071
Dr Gregory B Auffenberg, MD, MS
12855 N 40 Dr Ste 350,
Saint Louis, MO 63141-8669

Ph: (314) 567-6071

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).

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