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LAUREN KAY MAYS MD
NPI 1205523651
Emergency Medicine in Saint Louis, MO

Active since April 18, 2023PECOS EnrolledAccepts Medicare Assignment
1402 S GRAND BLVD, SAINT LOUIS, MO 63104(314) 977-9851 Get Directions Write a Review

NPPES record last updated: August 19, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Aug 19, 2026, May 7, 2025 (2 updates tracked since 2025).

About Lauren Kay Mays Md NPPES

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

LAUREN KAY MAYS MD (NPI 1205523651) is an individual emergency medicine provider in Saint Louis, Missouri, licensed in Missouri (2023020896) and active in the NPI registry since April 2023. She is enrolled in Medicare PECOS, is affiliated with Mercy Medical Center, and is a graduate of Other (2023).

NPPES Registry Identity

NPI1205523651
Entity TypeIndividualFemale
Primary Taxonomy207P00000X
Provider Legal NameLAUREN KAY MAYSCredential: MD
Location Address1402 S GRAND BLVDSaint Louis, MO 63104-1004
Mailing Address1402 S Grand Blvd Rm M260Saint Louis, MO 63104-1004 · (314) 977-9851
Phone(314) 977-9851
Sole ProprietorNo
Medical School CMSOtherGraduated 2023
Enumeration DateApril 18, 2023
Last NPPES UpdateAugust 19, 20262 updates tracked since enumeration
NPPES CertifiedAugust 19, 2026
✔ NPI 1205523651 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
Licenses✔ Licensed in MO · 2023020896✔ Licensed in OR · MD229463
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.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
1402 S GRAND BLVD, Saint Louis, MO 63104
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Lauren Kay Mays 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 ID5991206807
PECOS Enrollment IDI20260724002118
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.

Medicare Billing Reassignment

Medicare enrollment records show Lauren Mays reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Cep America LLC
1,433 mi
Emergency Medicine
351 SW 9TH ST
Ontario, OR 97914
  • Reassigned Medicare billing, Oregon enrollment
  • 167 clinicians in this Medicare group
NPI 1790209898 (541) 881-7000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Hospital Affiliations CMS Care Compare

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

Mercy Medical Center

Acute Care Hospitals · Roseburg, OR
4/5 CMS rating
OwnershipGovernment - Hospital District or Authority
CMS Certification Number380027
Location2700 NW Stewart ParkwayRoseburg, OR 97471 · Douglas County
Emergency services Birthing friendly

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
$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.

HALA YAMOUT M.D.
Student in an Organized Health Care Education/Training Program
1402 S GRAND BLVD, M260
SAINT LOUIS, MO 63104
St. Louis City (314) 977-9853
VICTORIA M WITTGEN
Student in an Organized Health Care Education/Training Program
1402 S GRAND BLVD
SAINT LOUIS, MO 63104
St. Louis City (314) 977-9870
ADAM BALES D.O.
Anesthesiology
1402 S GRAND BLVD, M260
SAINT LOUIS, MO 63104
St. Louis City (314) 977-9853
ALLISON NICOLE PODSEDNIK GARDNER MD
Student in an Organized Health Care Education/Training Program
1402 S GRAND BLVD
SAINT LOUIS, MO 63104
St. Louis City (314) 617-3811
DR. KATHERINE JASKOWIAK ROBBINS MD
Pathology (Anatomic Pathology & Clinical Pathology)
1402 S GRAND BLVD
SAINT LOUIS, MO 63104
St. Louis City (314) 977-4547
DR. VIVIAN MAI HATHUC D.O.
Pathology (Anatomic Pathology & Clinical Pathology)
1402 S GRAND BLVD
SAINT LOUIS, MO 63104
St. Louis City (314) 977-4547
TERRY J BUJNAK JR. DO
Orthopaedic Surgery
1402 S GRAND BLVD
SAINT LOUIS, MO 63104
St. Louis City (314) 617-3375
NEELOFUR NAZEER M.D.
Pathology (Anatomic Pathology & Clinical Pathology)
1402 S GRAND BLVD
SAINT LOUIS, MO 63104
St. Louis City (314) 577-8475

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 Lauren Mays's NPI number?

The NPI number for Lauren Mays is 1205523651. It was assigned to this individual provider in the NPPES registry on April 18, 2023.

Where is Lauren Mays located?

Lauren Mays practices at 1402 S Grand Blvd, Saint Louis, MO 63104. The listed phone number is (314) 977-9851.

What is Lauren Mays's specialty?

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

Is Lauren Mays enrolled in Medicare?

Yes. Lauren Mays 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.

Which organization bills Medicare for Lauren Mays's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Lauren Mays reassigns Medicare benefits to Cep America LLC (Ontario, OR). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Lauren Mays's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Lauren Mays affiliated with any hospitals?

According to CMS data, Lauren Mays is affiliated with Mercy Medical Center.

When was this NPI record last updated?

The NPPES record for Lauren Mays was last updated on August 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months 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.