William Spang Zackowski, D.O.
Emergency Medicine Physician · Winston Salem, NC
William Spang Zackowski, D.O. is an emergency medicine physician with a practice address in Winston Salem, North Carolina, and NPI 1912448762, issued on Mar 13, 2017. Check the license (North Carolina 2021-02375, as entered in NPPES) on the North Carolina Medical Board; the Medicare figures below come from public CMS files.
- Name
- William Spang Zackowski
- Credential
- D.O.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- 2021-02375 NC
34.014802 OH
Self-reported in NPPES; status is on the state search - Practice location
- Medical Center Blvd, Winston Salem, NC 27157
- Phone
- (336) 716-2255
- Enumerated
- Mar 13, 2017
- Record last updated
- Dec 1, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (336) 716-3202
- Medicaid ID
- 0426418 OH
- Medicare enrollment
- Enrolled (PECOS I20211129002218); accepts Medicare assignment
- Medical or professional school
- Edward Via Col Of Osteo Medicine-Virginia Campus, 2017
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 2,094 in North Carolina → Look up another NPI →
Also registered at Medical Center Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Firas Abdulmajeed, M.D.Internal Medicine Physician1427358043
- Nuhad Abou Zeid, MDNeurology Physician1144427766
- Rachel AbrahamStudent in an Organized Health Care Education/Training Program1790451987
- Jon Abramson, MDPediatric Infectious Diseases Physician1033194691
Verify William Spang Zackowski in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNorth Carolina Medical Board
Search for license 2021-02375Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
35% fewer Medicare Part D claims than the average emergency medicine physician in 2024
147 Medicare Part D claims for 111 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 19 claims were for opioids.
Most prescribed
- Ondansetron Odt22 claims
- Cephalexin18 claims
- Cefuroxime12 claims
- Hydrocodone-Acetaminophen12 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.
Bills Medicare through one group practice
- Wake Forest University Health SciencesHigh Point, NC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Spang Zackowski among 2,094 emergency medicine physician records in North Carolina
William Spang Zackowski, D.O. is one of 2,094 emergency medicine physician records with a practice address in North Carolina. 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 2017, is newer than 77% of them.
- NPI issued2017 · 77% of these records are older, 20% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2017 · median 2012 among the 1,317 with a school on file
- Record last updated2021 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a North Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
174 emergency medicine physician records list a practice address in Winston Salem
They are 174 of the 10,040 NPPES records with a practice address in Winston Salem, and 2,094 emergency medicine physician records in North Carolina.
All 2,094 in North Carolina → Every provider in Winston Salem → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Howard Blumstein, MDWinston Salem, NC 271571801870209
- David Cline, MDWinston Salem, NC 271571811970510
- Michael Fitch, MDWinston Salem, NC 271571215911615
- Mark Hess, MDWinston Salem, NC 271571124003082
- James Hoekstra, MDWinston Salem, NC 271571255315651
- Ralph Leonard, MDWinston Salem, NC 271571104800598
- David Manthey, MDWinston Salem, NC 271571285618686
- Henderson McGinnis, MDWinston Salem, NC 271571174508030
Common questions
What is William Spang Zackowski, D.O.'s NPI number?
William Spang Zackowski, D.O.'s National Provider Identifier (NPI) is 1912448762, issued on Mar 13, 2017. An NPI identifies a provider in billing; it is not a license.
Where is William Spang Zackowski, D.O. located?
The NPPES record lists a practice address at Medical Center Blvd, Winston Salem, NC, 27157. Phone: (336) 716-2255. Providers update this record themselves, so call before visiting.
How can I verify William Spang Zackowski, D.O.'s license?
NPPES lists North Carolina license number 2021-02375, as entered by the provider. Search the North Carolina Medical Board at https://portal.ncmedboard.org/verification/search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William Spang Zackowski, D.O. prescribe under Medicare Part D?
In 2024, William Spang Zackowski, D.O. had 147 Medicare Part D claims for 111 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.