Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

DR. NATHANIEL JAMES WILLIAMS MD
NPI 1629763016
Emergency Medicine in Louisville, KY

Active since April 10, 2023PECOS Enrolled
1 AUDUBON PLAZA DR, LOUISVILLE, KY 40217(502) 636-7225(502) 636-8032 Get Directions Write a Review

NPPES record last updated: July 24, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jul 24, 2026, Mar 6, 2025, Apr 10, 2023 (3 updates tracked since 2023).

About Dr. Nathaniel James Williams Md NPPES

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

DR. NATHANIEL JAMES WILLIAMS MD (NPI 1629763016) is an individual emergency medicine provider in Louisville, Kentucky, licensed in Kentucky (60970) and active in the NPI registry since April 2023. He is enrolled in Medicare PECOS, is affiliated with University Of Louisville Hospital, and is a graduate of Florida International Univ, College Of Medicine (2023).

NPPES Registry Identity

NPI1629763016
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameDR. NATHANIEL JAMES WILLIAMSCredential: MD
Location Address1 AUDUBON PLAZA DRLouisville, KY 40217-1318
Mailing Address4801 Olympia Park Plz Ste 3000Louisville, KY 40241-0001 · (502) 446-8669
Fax(502) 636-8032
Sole ProprietorNo
Medical School CMSFlorida International Univ, College Of MedicineGraduated 2023
Enumeration DateApril 10, 2023
Last NPPES UpdateJuly 24, 20263 updates tracked since enumeration
NPPES CertifiedJuly 24, 2026
NPI 1629763016 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License Licensed in KY · 60970
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.

1 AUDUBON PLAZA DR, Louisville, KY 40217

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. Nathaniel James Williams 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 ID1355856295
PECOS Enrollment IDI20250711000578
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.

Hospital Affiliations CMS Care Compare

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

University Of Louisville Hospital

Acute Care Hospitals · Louisville, KY
1/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number180141
Location530 South Jackson StreetLouisville, KY 40202 · Jefferson County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 40217 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
$82.24 typical visit price
range $52.76 – $162.27
Typical copayment $20.56 (range $13.19 – $40.56)
Most-billed visit code 99203
Established Patient
$93.94 typical visit price
range $16.53 – $131.99
Typical copayment $23.48 (range $4.13 – $32.99)
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.

Emergency Medicine
1 AUDUBON PLAZA DR
LOUISVILLE, KY 40217
Registered Nurse (Administrator)
1 AUDUBON PLAZA DR
LOUISVILLE, KY 40217
Anesthesiology
1 AUDUBON PLAZA DR, ATTN: RUBY POLTNER
LOUISVILLE, KY 40217
Physician Assistant
1 AUDUBON PLAZA DR
LOUISVILLE, KY 40217
Emergency Medicine
1 AUDUBON PLAZA DR
LOUISVILLE, KY 40217
Emergency Medicine
1 AUDUBON PLAZA DR
LOUISVILLE, KY 40217
Emergency Medicine
1 AUDUBON PLAZA DR
LOUISVILLE, KY 40217
Radiology (Diagnostic Radiology)
1 AUDUBON PLAZA DR
LOUISVILLE, KY 40217

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 Nathaniel Williams's NPI number?

The NPI number for Nathaniel Williams is 1629763016. It was assigned to this individual provider in the NPPES registry on April 10, 2023.

Where is Nathaniel Williams located?

Nathaniel Williams practices at 1 Audubon Plaza Dr, Louisville, KY 40217. The listed phone number is (502) 636-7225.

What is Nathaniel Williams's specialty?

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

Is Nathaniel Williams enrolled in Medicare?

Yes. Nathaniel Williams 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 Nathaniel Williams accept?

Health plans from CareSource list Nathaniel Williams 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 Nathaniel Williams affiliated with any hospitals?

According to CMS data, Nathaniel Williams is affiliated with University Of Louisville Hospital.

When was this NPI record last updated?

The NPPES record for Nathaniel Williams was last updated on July 24, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.