David William Holzer
Anesthesiology Physician · Chicago, IL
David William Holzer is an anesthesiology physician with a practice address in Chicago, Illinois, and NPI 1710671094, issued on Jun 8, 2023. Check the license (Illinois 125.083649, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- David William Holzer
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- 125.083649 IL
Self-reported in NPPES; status is on the state search - Practice location
- 5841 S Maryland Ave, Chicago, IL 60637
- Phone
- (773) 702-1150
- Enumerated
- Jun 8, 2023
- Record last updated
- May 16, 2025
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 2,575 in Illinois → Look up another NPI →
Also registered at 5841 S Maryland Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Noor Abdelrahman, PA-CPhysician Assistant1851012413
- Unknown Abdul Hanan, MDBlood Banking & Transfusion Medicine Physician1750022240
Verify David William Holzer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 125.083649Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average anesthesiology physician in 2024
18 Medicare Part D claims, against an average of 402 among the 4,319 providers of this specialty who prescribed in Part D.
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.
David William Holzer among 2,575 anesthesiology physician records in Illinois
David William Holzer is one of 2,575 anesthesiology physician records with a practice address in Illinois. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 90% of them.
- NPI issued2023 · 90% of these records are older, 7% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2025 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,113 anesthesiology physician records list a practice address in Chicago
They are 1,113 of the 63,379 NPPES records with a practice address in Chicago, and 2,575 anesthesiology physician records in Illinois.
All 2,575 in Illinois → Every provider in Chicago → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Magdalena Anitescu, MDChicago, IL 606371891850012
- Angela Arndt, M.D.Chicago, IL 606371689632317
- Mark ChaneyChicago, IL 606371346305562
- Frank DupontChicago, IL 606371770578122
- Atul GuptaChicago, IL 606371396791729
- Matthew KaufmannChicago, IL 606371336165109
- Joan Matthews, MDChicago, IL 606371124034533
- Anish OzaChicago, IL 606371518050046
Common questions
What is David William Holzer's NPI number?
David William Holzer's National Provider Identifier (NPI) is 1710671094, issued on Jun 8, 2023. An NPI identifies a provider in billing; it is not a license.
Where is David William Holzer located?
The NPPES record lists a practice address at 5841 S Maryland Ave, Chicago, IL, 60637. Phone: (773) 702-1150. Providers update this record themselves, so call before visiting.
How can I verify David William Holzer's license?
NPPES lists Illinois license number 125.083649, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does David William Holzer prescribe under Medicare Part D?
In 2024, David William Holzer had 18 Medicare Part D claims; the average among anesthesiology physician prescribers was 402. 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.