William Stix Schwab, M.D.
Internal Medicine Physician · Willoughby, OH
William Stix Schwab, M.D. is an internal medicine physician with a practice address in Willoughby, Ohio, and NPI 1619079407, issued on Sep 2, 2006. Check the license (Ohio 35-079589, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- William Stix Schwab
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 35-079589 OH
Self-reported in NPPES; status is on the state search - Practice location
- 5105 Som Center RD, Willoughby, OH 44094
- Phone
- (216) 524-7377
- Enumerated
- Sep 2, 2006
- Record last updated
- Nov 23, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (440) 975-4617
- Medicaid ID
- 2297572 OH
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 5,277 in Ohio → Look up another NPI →
Also registered at 5105 Som Center RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify William Stix Schwab in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35-079589Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average internal medicine physician in 2024
282 Medicare Part D claims for 14 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 33% of claims.
Most prescribed
- Sodium Chloride91 claims
- Levothyroxine Sodium21 claims
- Lisinopril15 claims
- Tamsulosin Hcl13 claims
- Folic Acid12 claims
- Furosemide12 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.
William Stix Schwab among 5,277 internal medicine physician records in Ohio
William Stix Schwab, 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 2006, is newer than 13% of them.
- NPI issued2006 · 13% of these records are older, 55% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 65% of these records are
- Record last updated2020 · 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).
24 internal medicine physician records list a practice address in Willoughby
They are 24 of the 1,110 NPPES records with a practice address in Willoughby, and 5,277 internal medicine physician records in Ohio.
All 5,277 in Ohio → Every provider in Willoughby → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Stephen Archacki, MDEuclid, OH 440941376526053
- Syed Ashraf, M.D.Willoughby, OH 440941760431860
- Laura Bailey, MDWilloughby, OH 440941770699019
- Mitchell Ballin, MDWilloughby, OH 440941104866565
- Mihaela Donca, M.D.Willoughby, OH 440941881635670
- Sujata Khosla, M.DWilloughby, OH 440941730198425
- Sandeep Kotak, MDWilloughby, OH 440941013023357
- Inna Krasnyansky, M.D.Willoughby, OH 440941053312298
Common questions
What is William Stix Schwab, M.D.'s NPI number?
William Stix Schwab, M.D.'s National Provider Identifier (NPI) is 1619079407, issued on Sep 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Stix Schwab, M.D. located?
The NPPES record lists a practice address at 5105 Som Center RD, Willoughby, OH, 44094. Phone: (216) 524-7377. Providers update this record themselves, so call before visiting.
How can I verify William Stix Schwab, M.D.'s license?
NPPES lists Ohio license number 35-079589, 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 Stix Schwab, M.D. prescribe under Medicare Part D?
In 2024, William Stix Schwab, M.D. had 282 Medicare Part D claims for 14 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.