DR. ALEXANDER GAYLE PARKER MD
NPI 1689177743
Emergency Medicine in Festus, MO

Active since March 15, 2018PECOS EnrolledAccepts Medicare Assignment
1400 US HIGHWAY 61, FESTUS, MO 63028(636) 933-1000 Get Directions Write a Review

NPPES record last updated: June 13, 2024. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jun 13, 2024, Dec 22, 2021, Jun 17, 2020 and 1 more (4 updates tracked since 2018).

About Dr. Alexander Gayle Parker Md NPPES

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

DR. ALEXANDER GAYLE PARKER MD (NPI 1689177743) is an individual emergency medicine provider in Festus, Missouri, licensed in Missouri (2021047265) and active in the NPI registry since March 2018. He is enrolled in Medicare PECOS, is affiliated with Mercy Hospital Jefferson, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1689177743
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameDR. ALEXANDER GAYLE PARKERCredential: MD
Location Address1400 US HIGHWAY 61Festus, MO 63028-4100
Mailing Address1400 Us Highway 61Festus, MO 63028-4100 · (636) 933-1000
Sole ProprietorNo
Medical School CMSOtherGraduated 2020
Enumeration DateMarch 15, 2018
Last NPPES UpdateJune 13, 20244 updates tracked since enumeration
NPPES CertifiedJune 13, 2024
NPI 1689177743 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License Licensed in MO · 2021047265
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
1400 US HIGHWAY 61, Festus, MO 63028

Secondary Practice Locations 2

Location 1500 S Preston St Rm 305Louisville, KY 40202-1702 · Phone (502) 852-8696
Location 2400 S Kingshighway BlvdSaint Louis, MO 63110-1014 · Phone (314) 362-9123

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

Dr. Alexander Gayle Parker Md 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 ID1557785995
PECOS Enrollment IDI20240401002322
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 3

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.

Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
103 services99 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
42 services41 patients
Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
27 services27 patients

Hospital Affiliations CMS Care Compare

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

Mercy Hospital Jefferson

Acute Care Hospitals · Festus, MO
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260023
Location1400 Us Highway 61Festus, MO 63028 · Jefferson County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63028 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.

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.

Pharmacy (Community/Retail Pharmacy)
1400 US HIGHWAY 61, STE G38
FESTUS, MO 63028
Internal Medicine (Critical Care Medicine)
1400 US HIGHWAY 61
FESTUS, MO 63028
Family Medicine
1400 US HIGHWAY 61
FESTUS, MO 63028
Medicare Defined Swing Bed Unit
1400 US HIGHWAY 61
FESTUS, MO 63028
Radiology (Vascular & Interventional Radiology)
1400 US HIGHWAY 61
FESTUS, MO 63028
Nurse Anesthetist, Certified Registered
1400 US HIGHWAY 61
FESTUS, MO 63028
Internal Medicine
1400 US HIGHWAY 61
FESTUS, MO 63028
Physician Assistant
1400 US HIGHWAY 61
FESTUS, MO 63028

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 Alexander Parker's NPI number?

The NPI number for Alexander Parker is 1689177743. It was assigned to this individual provider in the NPPES registry on March 15, 2018.

Where is Alexander Parker located?

Alexander Parker practices at 1400 Us Highway 61, Festus, MO 63028. The listed phone number is (636) 933-1000.

What is Alexander Parker's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Alexander Parker enrolled in Medicare?

Yes. Alexander Parker 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 Alexander Parker accept?

Health plans from Medica list Alexander Parker 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 Alexander Parker affiliated with any hospitals?

According to CMS data, Alexander Parker is affiliated with Mercy Hospital Jefferson.

When was this NPI record last updated?

The NPPES record for Alexander Parker was last updated on June 13, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.