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DR. NATHAN NORMAN WILLIAMS DO
NPI 1477016822
Emergency Medicine in Westlake, OH

Active since April 11, 2019PECOS EnrolledAccepts Medicare Assignment
29000 CENTER RIDGE ROAD, BUILDING 2, SUITE 150, WESTLAKE, OH 44145(440) 827-5985(440) 827-5412 Get Directions Write a Review

NPPES record last updated: March 13, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Mar 13, 2023, Apr 11, 2019 (2 updates tracked since 2019).

About Dr. Nathan Norman Williams Do NPPES

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

DR. NATHAN NORMAN WILLIAMS DO (NPI 1477016822) is an individual emergency medicine provider in Westlake, Ohio, licensed in Ohio (34.015675) and active in the NPI registry since April 2019. He is enrolled in Medicare PECOS, is affiliated with Uh St John Medical Center, and is a graduate of Lake Erie College Of Osteopathic Medicine, Erie (2019).

NPPES Registry Identity

NPI1477016822
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameDR. NATHAN NORMAN WILLIAMSCredential: DO
Location Address29000 CENTER RIDGE ROAD, BUILDING 2, SUITE 150Westlake, OH 44145-5219
Mailing Address36550 Chester Rd Apt 5706Avon, OH 44011-4018 · (440) 213-1271
Phone(440) 827-5985
Fax(440) 827-5412
Sole ProprietorNo
Medical School CMSLake Erie College Of Osteopathic Medicine, ErieGraduated 2019
Enumeration DateApril 11, 2019
Last NPPES UpdateMarch 13, 20232 updates tracked since enumeration
NPPES CertifiedMarch 13, 2023
✔ NPI 1477016822 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
Licenses✔ Licensed in OH · 34.015675✔ Licensed in OH · 58.030638
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.
29000 CENTER RIDGE ROAD, Westlake, OH 44145
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include CareSource.Insurance ›

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

Dr. Nathan Norman Williams Do 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 ID5496089278
PECOS Enrollment IDI20230516001317
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 Reassignments

4

Medicare enrollment records show Nathan Williams reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Physicians Link Center LLC
9.3 mi
Emergency Medicine
630 E RIVER ST
Elyria, OH 44035
  • Reassigned Medicare billing, Ohio enrollment
  • 251 clinicians in this Medicare group
NPI 1235172925 (844) 474-4019
Magis Emergency Medicine LLC
12 mi
Emergency Medicine
7007 POWERS BLVD
Parma, OH 44129
  • Reassigned Medicare billing, Ohio enrollment
  • 237 clinicians in this Medicare group
NPI 1801287511 (844) 474-4019
University Hospitals Medical Group Inc
18 mi
Multi-Specialty
11100 EUCLID AVE
Cleveland, OH 44106
  • Reassigned Medicare billing, Ohio enrollment
  • 3,958 clinicians in this Medicare group
NPI 1669499414 (216) 844-1000
Ues Ahuja LLC
23 mi
Emergency Medicine
3999 RICHMOND RD
Beachwood, OH 44122
  • Reassigned Medicare billing, Ohio enrollment
  • 187 clinicians in this Medicare group
NPI 1467883934 (844) 474-4019

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

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.

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.
262 services252 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010
A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.
217 services158 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.
40 services40 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.
32 services32 patients

Hospital Affiliations CMS Care Compare 2

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

Uh St John Medical Center

Acute Care Hospitals · Westlake, OH
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number360123
Location29000 Center Ridge RoadWestlake, OH 44145 · Cuyahoga County
Emergency services

University Hospitals - Elyria Medical Center

Acute Care Hospitals · Elyria, OH
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number360145
Location630 East River StreetElyria, OH 44035 · Lorain County

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 44145 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
$84.72 typical visit price
range $54.34 – $166.65
Typical copayment $21.18 (range $13.58 – $41.66)
Most-billed visit code 99203
Established Patient
$96.44 typical visit price
range $17.10 – $135.40
Typical copayment $24.11 (range $4.27 – $33.85)
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 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

PATRICK WILLIAM SPIRNAK D.O
Emergency Medicine
29000 CENTER RIDGE ROAD, ST. JOHN MEDICAL CENTER
WESTLAKE, OH 44145
Cuyahoga County (440) 835-8000
TREVOR JAMES LEWIS DO
Emergency Medicine
29000 CENTER RIDGE ROAD, BLDG 2, STE 150
WESTLAKE, OH 44145
Cuyahoga County (440) 827-5261

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 Nathan Williams's NPI number?

The NPI number for Nathan Williams is 1477016822. It was assigned to this individual provider in the NPPES registry on April 11, 2019.

Where is Nathan Williams located?

Nathan Williams practices at 29000 Center Ridge Road Building 2, Suite 150, Westlake, OH 44145. The listed phone number is (440) 827-5985.

What is Nathan Williams's specialty?

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

Is Nathan Williams enrolled in Medicare?

Yes. Nathan 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.

Which organizations bill Medicare for Nathan Williams's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Nathan Williams reassigns Medicare benefits to 4 organizations: Physicians Link Center LLC (Elyria, OH), Magis Emergency Medicine LLC (Parma, OH), University Hospitals Medical Group Inc (Cleveland, OH) and Ues Ahuja LLC (Beachwood, OH). Each 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 Nathan Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Nathan Williams accept?

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

According to CMS data, Nathan Williams is affiliated with Uh St John Medical Center and University Hospitals - Elyria Medical Center.

When was this NPI record last updated?

The NPPES record for Nathan Williams was last updated on March 13, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.