Errol Baldwin Williams, M.D.
Cardiovascular Disease Physician · Ontario, OH
Errol Baldwin Williams, M.D. is a cardiovascular disease physician with a practice address in Ontario, Ohio, and NPI 1366456519, issued on Jul 27, 2006. Check the license (Ohio 35.126917, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- Errol Baldwin Williams
- Credential
- M.D.
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- 35.126917 OH
Self-reported in NPPES; status is on the state search - Practice location
- 715 Richland Mall, Ontario, OH 44906
- Phone
- (419) 462-4600
- Enumerated
- Jul 27, 2006
- Record last updated
- Jan 8, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 0142866 OH
- Medicare enrollment
- Enrolled (PECOS I20151027003278); accepts Medicare assignment
- Medical or professional school
- Boston University School Of Medicine, 1990
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 1,009 in Ohio → Look up another NPI →
Also registered at 715 Richland Mall
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Edward Adkins, M.D.Family Medicine Physician1679561310
- Evan Bader, ATCAthletic Trainer1407692494
- Michael Barat, MDOtolaryngology Physician1265425060
- Aaron Becker, PSYDClinical Psychologist1598753071
- Melissa Becker, MDFamily Medicine Physician1174514087
- Adam Bihl, M.D.Family Medicine Physician1164465480
Verify Errol Baldwin Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35.126917Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
32% more Medicare Part D claims than the average cardiovascular disease physician in 2024
4,056 Medicare Part D claims for 402 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.
Most prescribed
- Metoprolol Succinate360 claims
- Atorvastatin Calcium241 claims
- Eliquis236 claims
- Losartan Potassium226 claims
- Lisinopril220 claims
- Digoxin175 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 74 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $14.18
1 payment: food and beverage; the largest payer was Hologic Sales and Service, LLC. The 16,686 providers of this specialty with any payment received $3,819.56 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- North Central Ohio Family Care Center IncGalion, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Errol Baldwin Williams among 1,009 cardiovascular disease physician records in Ohio
Errol Baldwin Williams, M.D. is one of 1,009 cardiovascular disease physician records with a practice address in Ohio. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 21% of them.
- NPI issued2006 · 21% of these records are older, 40% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated1990 · median 1998 among the 680 with a school on file
- Record last updated2021 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Cardiovascular Disease Physician providers in Ohio
There are 1,009 cardiovascular disease physician records in Ohio.
All 1,009 in Ohio → Every provider in Ontario → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- Mary Alton, M.D.Mansfield, OH 449031003817370
- James Bacon, M.D.Mansfield, OH 449031063413474
- Fereidoun Behi, MDMansfield, OH 449031902861347
- Serena Day, MDMansfield, OH 449031669715348
- Jennifer Dickerson, M.D.Mansfield, OH 449031598887341
- Yan Naung Htay, MDMansfield, OH 449031952929655
- Rahul JaswaneyMansfield, OH 449031811491699
- Stephen Lenehan, MD, FACCMansfield, OH 449031760416341
Common questions
What is Errol Baldwin Williams, M.D.'s NPI number?
Errol Baldwin Williams, M.D.'s National Provider Identifier (NPI) is 1366456519, issued on Jul 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Errol Baldwin Williams, M.D. located?
The NPPES record lists a practice address at 715 Richland Mall, Ontario, OH, 44906. Phone: (419) 462-4600. Providers update this record themselves, so call before visiting.
How can I verify Errol Baldwin Williams, M.D.'s license?
NPPES lists Ohio license number 35.126917, as entered by the provider. Search the State Medical Board of Ohio at https://elicense.ohio.gov/oh_verifylicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Errol Baldwin Williams, M.D. prescribe under Medicare Part D?
In 2024, Errol Baldwin Williams, M.D. had 4,056 Medicare Part D claims for 402 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. Part D covers Medicare prescriptions only.
What is Errol Baldwin Williams, M.D.'s MIPS final score?
The 2023 MIPS final score is 74 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.