GWYN MAHONY HADEED D.O.
NPI 1023438231
Family Medicine in Saint Louis, MO

Active since April 27, 2014PECOS EnrolledAccepts Medicare Assignment
401 HOLLY HILLS AVE, SAINT LOUIS, MO 63111(314) 353-5190(314) 353-7631 Get Directions Write a Review

NPPES record last updated: October 4, 2022. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Oct 4, 2022, Jun 18, 2021, Nov 10, 2020 and 4 more (7 updates tracked since 2016).

About Gwyn Mahony Hadeed D.o. NPPES

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

GWYN MAHONY HADEED D.O. (NPI 1023438231) is an individual family medicine provider in Saint Louis, Missouri, licensed in Missouri (2022038658) and active in the NPI registry since April 2014. She is enrolled in Medicare PECOS, is affiliated with Salem Hospital, and is a graduate of Other (2016).

NPPES Registry Identity

NPI1023438231
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameGWYN MAHONY HADEEDCredential: D.O.
Location Address401 HOLLY HILLS AVESaint Louis, MO 63111-2410
Mailing Address401 Holly Hills AveSaint Louis, MO 63111-2410 · (314) 353-5190 · Fax (314) 353-1310
Fax(314) 353-7631
Sole ProprietorYes
Medical School CMSOtherGraduated 2016
Enumeration DateApril 27, 2014
Last NPPES UpdateOctober 4, 20227 updates tracked since enumeration
NPPES CertifiedOctober 4, 2022
NPI 1023438231 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
Licenses Licensed in MO · 2022038658 Licensed in CO · DR.0059371 Licensed in CO · TL0006017 Licensed in OR · DO196254
Definition

Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

401 HOLLY HILLS AVE, Saint Louis, MO 63111

Other Names 1

Professional Name (2)Gwyn Mahony D.o.

Accepted Insurance

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Gwyn Mahony Hadeed D.o. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1951678101
PECOS Enrollment IDI20200214000007
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.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
92 services55 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
59 services41 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
35 services35 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
18 services16 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Salem Hospital

Acute Care Hospitals · Salem, OR
4/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number380051
Location890 Oak Street, SESalem, OR 97301 · Marion County
Emergency services Birthing friendly

West Valley Hospital

Critical Access Hospitals · Dallas, OR
OwnershipVoluntary non-profit - Private
CMS Certification Number381308
Location525 SE Washington StreetDallas, OR 97338 · Polk County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63111 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
$86.32 typical visit price
range $55.65 – $169.38
Typical copayment $21.58 (range $13.91 – $42.34)
Most-billed visit code 99203
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 3

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

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
6 suppliers19 claims32 services$5.59 avg. paid by Medicare
Albuterol, inhalation solution, fda-approved final product, non-compounded, administered through dme, unit dose, 1 mg J7613
DME-Drugs Administered Through DME · category DG006N
1 supplier12 claims3,600 services$0.03 avg. paid by Medicare
Pharmacy dispensing fee for inhalation drug(s); per 30 days Q0513
DME-Other DME · category DE000N
1 supplier12 claims12 services$24.42 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.

Physical Therapist
401 HOLLY HILLS AVE
SAINT LOUIS, MO 63111
Internal Medicine
401 HOLLY HILLS AVE
SAINT LOUIS, MO 63111
Pediatrics
401 HOLLY HILLS AVE
SAINT LOUIS, MO 63111
Chiropractor
401 HOLLY HILLS AVE
SAINT LOUIS, MO 63111
Social Worker (Clinical)
401 HOLLY HILLS AVE
SAINT LOUIS, MO 63111
Student in an Organized Health Care Education/Training Program
401 HOLLY HILLS AVE
SAINT LOUIS, MO 63111
Student in an Organized Health Care Education/Training Program
401 HOLLY HILLS AVE
SAINT LOUIS, MO 63111
Dietitian, Registered
401 HOLLY HILLS AVE
SAINT LOUIS, MO 63111

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Gwyn Hadeed's NPI number?

The NPI number for Gwyn Hadeed is 1023438231. It was assigned to this individual provider in the NPPES registry on April 27, 2014. The provider is also known as Gwyn Mahony D.O..

Where is Gwyn Hadeed located?

Gwyn Hadeed practices at 401 Holly Hills Ave, Saint Louis, MO 63111. The listed phone number is (314) 353-5190.

What is Gwyn Hadeed's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Gwyn Hadeed enrolled in Medicare?

Yes. Gwyn Hadeed is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Gwyn Hadeed accept?

Health plans from Moda Health Plan, Inc. and Providence Health Plan list Gwyn Hadeed as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Gwyn Hadeed affiliated with any hospitals?

According to CMS data, Gwyn Hadeed is affiliated with Salem Hospital and West Valley Hospital.

When was this NPI record last updated?

The NPPES record for Gwyn Hadeed was last updated on October 4, 2022. NPI Profile syncs with the weekly NPPES data releases published by CMS.