ERROL BALDWIN WILLIAMS II M.D.
NPI 1366456519
Internal Medicine - Cardiovascular Disease in Ontario, OH

Active since July 27, 2006PECOS EnrolledAccepts Medicare Assignment
73.97/100
CMS Quality Rating
715 RICHLAND MALL, ONTARIO, OH 44906(419) 462-4600 Get Directions Write a Review

NPPES record last updated: January 8, 2021. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Errol Baldwin Williams Ii M.d. NPPES

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

ERROL BALDWIN WILLIAMS II M.D. (NPI 1366456519) is an individual cardiovascular disease provider in Ontario, Ohio, licensed in Ohio (35.126917) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Ohiohealth Mansfield Hospital, and maintains a secondary practice location in Bucyrus.

NPPES Registry Identity

NPI1366456519
Entity TypeIndividualMale
Primary Taxonomy207RC0000X
Provider Legal NameERROL BALDWIN WILLIAMS IICredential: M.D.
Location Address715 RICHLAND MALLOntario, OH 44906-3802
Mailing Address700 N Columbus StCrestline, OH 44827-1455
Sole ProprietorNo
Medical School CMSBoston University School Of MedicineGraduated 1990
Enumeration DateJuly 27, 2006
Last NPPES UpdateJanuary 8, 2021
NPPES CertifiedJanuary 8, 2021
NPI 1366456519 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RC0000X
License Licensed in OH · 35.126917
Definition
An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.
715 RICHLAND MALL, Ontario, OH 44906

Secondary Practice Location 1

Location 1629 N Sandusky AveBucyrus, OH 44820-1821 · Phone (419) 462-4600

Other Identifiers 1

Medicaid0142866OH

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

Errol Baldwin Williams Ii M.d. 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 ID4183608813
PECOS Enrollment IDI20151027003278
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 12

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.

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.
631 services448 patients
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.
512 services211 patients
Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306
This is a heart ultrasound, also known as an echocardiogram. It uses sound waves to create pictures of your heart, showing how blood flows through it. The color depicts the blood flow's speed and direction. It also checks the heart's valves to ensure they're working properly.
227 services226 patients
Ultrasound of heart with continuous electrocardiogram (ecg) during rest, exercise and/or drug induced stress with review and report 93351
This procedure involves using ultrasound technology to create images of your heart while you rest, exercise, or undergo drug-induced stress. An ECG continuously monitors your heart's electrical activity. It helps doctors assess heart health and function.
58 services58 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
38 services38 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
35 services35 patients

Hospital Affiliations CMS Care Compare 4

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

Ohiohealth Mansfield Hospital

Acute Care Hospitals · Mansfield, OH
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number360118
Location335 Glessner AvenueMansfield, OH 44903 · Richland County
Emergency services Birthing friendly

Avita Ontario

Acute Care Hospitals · Ontario, OH
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number360365
Location715 Richland MallOntario, OH 44906 · Richland County
Emergency services Birthing friendly

Bucyrus Community Hospital

Critical Access Hospitals · Bucyrus, OH
OwnershipVoluntary non-profit - Other
CMS Certification Number361316
Location629 North Sandusky AvenueBucyrus, OH 44820 · Crawford County
Emergency services

Galion Community Hospital

Critical Access Hospitals · Galion, OH
3/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number361325
Location269 Portland Way SouthGalion, OH 44833 · Crawford County
Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 44906 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
$126.12 typical visit price
range $54.34 – $166.65
Typical copayment $31.53 (range $13.58 – $41.66)
Most-billed visit code 99204
Established Patient
$68.07 typical visit price
range $17.10 – $135.40
Typical copayment $17.01 (range $4.27 – $33.85)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

73.97/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality74.9
Promoting Interoperability99
Improvement Activities40
Cost39.16

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.

Dietitian, Registered
715 RICHLAND MALL
ONTARIO, OH 44906
Nurse Practitioner (Occupational Health)
715 RICHLAND MALL
ONTARIO, OH 44906
Pharmacist
715 RICHLAND MALL
ONTARIO, OH 44906
Pediatrics
715 RICHLAND MALL
ONTARIO, OH 44906
Internal Medicine (Interventional Cardiology)
715 RICHLAND MALL
ONTARIO, OH 44906
Internal Medicine
715 RICHLAND MALL
ONTARIO, OH 44906
Family Medicine
715 RICHLAND MALL
ONTARIO, OH 44906
Family Medicine
715 RICHLAND MALL, SUITE A
ONTARIO, OH 44906

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 Errol Williams's NPI number?

The NPI number for Errol Williams is 1366456519. It was assigned to this individual provider in the NPPES registry on July 27, 2006.

Where is Errol Williams located?

Errol Williams practices at 715 Richland Mall, Ontario, OH 44906. The listed phone number is (419) 462-4600.

What is Errol Williams's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Is Errol Williams enrolled in Medicare?

Yes. Errol 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 Errol Williams accept?

Health plans from Anthem Blue Cross and Blue Shield, CareSource, Molina Healthcare and UnitedHealthcare list Errol 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 Errol Williams affiliated with any hospitals?

According to CMS data, Errol Williams is affiliated with Ohiohealth Mansfield Hospital, Avita Ontario, Bucyrus Community Hospital and Galion Community Hospital.

When was this NPI record last updated?

The NPPES record for Errol Williams was last updated on January 8, 2021. NPI Profile syncs with the weekly NPPES data releases published by CMS.