William Schnackel, M.D.
Internal Medicine Physician · Columbus, OH
William Schnackel, M.D. is an internal medicine physician with a practice address in Columbus, Ohio, and NPI 1063723328, issued on Jul 1, 2010. Check the license (Ohio 35.120876, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- William Schnackel
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 35.120876 OH
Self-reported in NPPES; status is on the state search - Practice location
- 4895 Olentangy River RD, Columbus, OH 43214
- Phone
- (614) 267-8371
- Enumerated
- Jul 1, 2010
- Record last updated
- Aug 28, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (614) 262-0005
- Medicaid ID
- 0084265 OH
- Medicare enrollment
- Enrolled (PECOS I20130717000822); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 5,277 in Ohio → Look up another NPI →
Also registered at 4895 Olentangy River RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify William Schnackel in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35.120876Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
81% more Medicare Part D claims than the average internal medicine physician in 2024
5,763 Medicare Part D claims for 415 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 238 claims were for opioids.
Most prescribed
- Amlodipine Besylate297 claims
- Atorvastatin Calcium258 claims
- Losartan Potassium199 claims
- Levothyroxine Sodium185 claims
- Omeprazole174 claims
- Lisinopril168 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.
Industry payments in 2024: $99.50
5 payments; by number, the most common kind was food and beverage; the largest payer was GlaxoSmithKline, LLC. The 50,334 providers of this specialty with any payment received $1,303.06 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
- Central Ohio Primary Care Physicians, Inc.Columbus, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Schnackel among 5,277 internal medicine physician records in Ohio
William Schnackel, M.D. is one of 5,277 internal medicine physician records with a practice address in Ohio. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 58% of them.
- NPI issued2010 · 58% of these records are older, 40% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2010 · median 2006 among the 3,414 with a school on file
- Record last updated2014 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
580 internal medicine physician records list a practice address in Columbus
They are 580 of the 36,491 NPPES records with a practice address in Columbus, and 5,277 internal medicine physician records in Ohio.
All 5,277 in Ohio → Every provider in Columbus → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
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- Diana Donati, M.D.Columbus, OH 432141184628869
- Francine Giannetto, M.D.Columbus, OH 432141548243223
- William Gramann, M.D.Columbus, OH 432141093798779
- Marietta Hofmeister, M.D.Columbus, OH 432141639152317
- Joseph Jacko, MDColumbus, OH 432141730185844
- David Lahue, M.D.Columbus, OH 432141861476327
Common questions
What is William Schnackel, M.D.'s NPI number?
William Schnackel, M.D.'s National Provider Identifier (NPI) is 1063723328, issued on Jul 1, 2010. An NPI identifies a provider in billing; it is not a license.
Where is William Schnackel, M.D. located?
The NPPES record lists a practice address at 4895 Olentangy River RD, Columbus, OH, 43214. Phone: (614) 267-8371. Providers update this record themselves, so call before visiting.
How can I verify William Schnackel, M.D.'s license?
NPPES lists Ohio license number 35.120876, 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 William Schnackel, M.D. prescribe under Medicare Part D?
In 2024, William Schnackel, M.D. had 5,763 Medicare Part D claims for 415 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
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.