GERALD MAHON M.D.
NPI 1154302289
Internal Medicine - Geriatric Medicine in Saint Louis, MO

Q: What is Gerald Mahon's NPI number?

The NPI number for Gerald Mahon is 1154302289. It was assigned to this individual provider in the NPPES registry on November 7, 2005.

Q: What is Gerald Mahon's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Geriatric Medicine, with taxonomy code 207RG0300X.

Q: When was this NPI record last updated?

The NPPES record for Gerald Mahon was last updated on March 12, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since November 07, 2005PECOS Enrolled

1201 S GRAND BLVD, SAINT LOUIS, MO 63104(314) 977-8462(314) 977-3370 Get Directions Write a Review

NPPES record last updated: March 12, 2021. Verified against the NPPES registry weekly; last sync: August 16, 2026.

On this page

About Gerald Mahon M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

GERALD MAHON M.D. (NPI 1154302289) is an individual geriatric medicine provider in Saint Louis, Missouri, licensed in Missouri (R4H74) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1154302289

Entity TypeIndividualMale

Primary Taxonomy207RG0300X

Provider Legal NameGERALD MAHONCredential: M.D.

Location Address1201 S GRAND BLVDSaint Louis, MO 63104-1016

Mailing Address1008 S Spring Ave Fl 2Saint Louis, MO 63110-2520 · (314) 977-8462 · Fax (314) 977-3370

Phone(314) 977-8462

Fax(314) 977-3370

Sole ProprietorNo

Enumeration DateNovember 7, 2005

Last NPPES UpdateMarch 12, 2021

NPPES CertifiedMarch 12, 2021

✔ NPI 1154302289 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Geriatric MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207RG0300X

License✔ Licensed in MO · R4H74

Definition

An internist who has special knowledge of the aging process and special skills in the diagnostic, therapeutic, preventive and rehabilitative aspects of illness in the elderly. This specialist cares for geriatric patients in the patient's home, the office, long-term care settings such as nursing homes and the hospital.

1201 S GRAND BLVD, Saint Louis, MO 63104

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Other Identifiers 7

OtherA12432MO · Mercy

Other138654MO · Healthlink

Other39965MO · Ghp

Other0400402MO · Uhc

Other17644MO · Bcbs

Other000000011339MO · Essence

Other4136351MO · Aetna

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Gerald Mahon M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63104 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$169.38 typical visit price

range $55.65 – $169.38

Typical copayment $42.34 (range $13.91 – $42.34)

Most-billed visit code 99205

Established Patient

$98.37 typical visit price

range $17.76 – $137.92

Typical copayment $24.59 (range $4.44 – $34.48)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390

DME-Oxygen and Supplies · category DC002N

2 suppliers18 claims19 services$80.92 avg. paid by Medicare

Pharmacy dispensing fee for inhalation drug(s); per 30 days Q0513

DME-Other DME · category DE000N

3 suppliers12 claims12 services$20.31 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DOUG LONGO APRN

Nurse Practitioner (Acute Care)