DR. EILEEN M MAHONEY (M.D.) – Otolaryngology Physician, NPI 1720012446

DR. EILEEN M MAHONEY (M.D.) is a healthcare provider. based in Saint louis, Missouri. specializing in OTOLARYNGOLOGY. They hold the professional credentials M.D.. They hold a License No. 036090704 (IL). The NPI Number for DR. EILEEN M MAHONEY (M.D.) is 1720012446

Main info

Female
40 Years Of Experience
Accepts Medicare Assignment
Name
DR. EILEEN M MAHONEY (M.D.)
NPI
1720012446
Phone
(314) 617-2000
Address
1465 S Grand Blvd
Enumeration Date
10 July 2006
Last Update Date
7 January 2026

Doctor Profile

Medical School Name
OTHER
Secondary Phone
6303125500
Graduation Year
1986 (40 years ago)
PAC ID
2062318744
Group Practice PAC ID
0244135762
Professional Enrollment ID
I20031211001094
Address ID
IL604404906BO500XXBLVD301

Contacts

Secure Messaging
eillen.mahoney.1@380.direct.athenahealth.com
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience76
Completeness95
Years active:19State licenses:2Other names

320 OTOLARYNGOLOGY in MO

Provider Addresses for DR. EILEEN M MAHONEY (M.D.)

  • 1465 S Grand Blvd

    Saint Louis, MO 631041003

    Phone: (314) 617-2000

    Type: Location

  • Salt Creek Lane, Fullersburg, Hinsdale, DuPage County, Illinois, 60558, United States

    HINSDALE, IL 605213032

    Phone: (630) 789-3110

    Fax: (630) 241-0884

    Type: Mailing

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 19 Open Payments records for all available years, with a total value of $475.

Total Amount is formed as General ($475) + Research ($0) + Ownership ($0) = $475.

Last reported payment date: 2024-11-14 • Largest payer in this snapshot: Regeneron Healthcare Solutions, Inc. ($101).

Total Amount

$475

General + Research + Ownership

Payments

19

Total payment records

General Amount

$475

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-11-14

Latest reported date

View all Open Payments →|Open Payments Risk Radar →

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2026-01-10

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking 2 Medicare enrollment records; no due dates published yet.

Enrollment records

2

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20031211001094IOtolaryngologyILTBD
I20260110000100IOtolaryngologyMOTBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
69210Removal of impacted ear wax175120$0
99213Established patient office or other outpatient visit, 20-29 minutes171118$0
99212Established patient office or other outpatient visit, 10-19 minutes9063$0
99214Established patient office or other outpatient visit, 30-39 minutes4639$0
99203New patient office or other outpatient visit, 30-44 minutes4444$0
View full utilization report →

Insurance plans in this area (ZIP 63104)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 0244135762View full group profile
NameSpecialtyState
Family PracticeIL
Family Practice, Emergency MedicineIL
N E U R O L O G YIL
O T O L A R Y N G O L O G YIL
-IL
-IL
Nurse PractitionerIL
O B S T E T R I C S/ G Y N E C O L O G YIL
Geriatric Medicine, Family PracticeIL
Family PracticeIL

Reviews

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Frequently asked questions

What is the 10-digit NPI for DR. EILEEN M MAHONEY (M.D.)?
DR. EILEEN M MAHONEY (M.D.) — NPI 1720012446 — is the standard way to identify this listing.
Can I rely on DR. EILEEN M MAHONEY (M.D.) being an active provider?
As of the registry snapshot, DR. EILEEN M MAHONEY (M.D.) is marked active.
What is DR. EILEEN M MAHONEY (M.D.)'s primary classification?
Otolaryngology Physician is the headline specialty for DR. EILEEN M MAHONEY (M.D.) here. Clinical services aligned with this taxonomy classification.
What address line appears for DR. EILEEN M MAHONEY (M.D.)?
DR. EILEEN M MAHONEY (M.D.)'s geographic hint is Saint Louis, Missouri in our summary view.
Why does DR. EILEEN M MAHONEY (M.D.) have multiple addresses?
3 practice locations appear in the available data. Multiple addresses are common for hospital privileges, telehealth, or multi-site groups.