Gerald Mahon, MD - Medicare in Saint Louis, MO

Gerald Mahon, MD is a medicare enrolled "Internal Medicine - Geriatric Medicine" physician in Saint Louis, Missouri. His current practice location is 1201 S Grand Blvd, Saint Louis, Missouri. You can reach out to his office (for appointments etc.) via phone at (314) 977-8462.

Gerald Mahon is licensed to practice in Missouri (license number R4H74) 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 1154302289.

Contact Information

Gerald Mahon, MD
1201 S Grand Blvd,
Saint Louis, MO 63104-1016
(314) 977-8462
(314) 977-3370

Map and Direction




Physician's Profile

Full NameGerald Mahon
GenderMale
Speciality
Experience Years
Location1201 S Grand Blvd, 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:
  • Gerald Mahon attended and graduated from in
  NPI Data:
  • NPI Number: 1154302289
  • Provider Enumeration Date: 11/07/2005
  • Last Update Date: 03/12/2021
  Medicare PECOS Information:
  • PECOS PAC ID:
  • Enrollment ID:

Medical Identifiers

Medical identifiers for Gerald Mahon such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1154302289NPI-NPPES
000000011339OtherMOESSENCE
138654OtherMOHEALTHLINK
0400402OtherMOUHC
39965OtherMOGHP
4136351OtherMOAETNA
A12432OtherMOMERCY
17644OtherMOBCBS

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0300XInternal Medicine - Geriatric Medicine R4H74 (Missouri)Primary

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. Gerald Mahon 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
Gerald Mahon, MD
1008 S Spring Ave Fl 2,
Saint Louis, MO 63110-2520

Ph: (314) 977-8462
Gerald Mahon, MD
1201 S Grand Blvd,
Saint Louis, MO 63104-1016

Ph: (314) 977-8462

Reviews and Comments


Internal Medicine Doctors in Saint Louis, MO

Dr. Isik Turker, MD
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Conor Mccartney, M.D.
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Phone: 314-362-1700    Fax: 314-362-9878
Dr. Rehan Rais, MD
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Practice Location: 1 Barnes Jewish Hospital Plz, Div Im Hospitalist, Saint Louis, MO 63110
Phone: 314-362-1700    Fax: 314-362-9878
Nathan Farkas, M.D.
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Practice Location: 1 Barnes Jew Hosp Plz, Saint Louis, MO 63110
Phone: 314-362-1930    
Dr. Randy Olivier Laine, MD
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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
Geriatric 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.