Zachary R. Book, MD
Emergency Medicine Physician · Chicago, IL
Zachary R. Book, MD is an emergency medicine physician with a practice address in Chicago, Illinois, and NPI 1972739431, issued on Jun 10, 2009. Check the license (Illinois 125-056738, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Zachary R. Book
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- 125-056738 IL
60289 KY
29282 OK
Self-reported in NPPES; status is on the state search - Practice location
- 7435 W Talcott Ave, Chicago, IL 60631
- Phone
- (773) 792-7921
- Enumerated
- Jun 10, 2009
- Record last updated
- Jun 18, 2026
- Entity
- Type 1 · individual
Also registered at 7435 W Talcott Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Logan Abel, MDEmergency Medicine Physician1447900592
- Rachel Abrams, M.D.Emergency Medicine Physician1659786317
- Eva Adams, P.T.Physical Therapist1265780753
- Jennifer AdamsStudent in an Organized Health Care Education/Training Program1710681473
- John Affinito, MDFamily Medicine Physician1316930191
- Omar Ahmed, DOEmergency Medicine Physician1043896947
Verify Zachary R. Book 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 125-056738Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
72% fewer Medicare Part D claims than the average emergency medicine physician in 2024
64 Medicare Part D claims for 49 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 15 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen13 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): 78.3 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).
1,310 emergency medicine physician records list a practice address in Chicago
They are 1,310 of the 63,379 NPPES records with a practice address in Chicago, and 3,291 emergency medicine physician records in Illinois.
All 1,310 in Chicago → All 3,291 in Illinois → Every provider in Chicago →
Other emergency medicine physician records in Illinois
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- Albert Abalos, M.D.Elmhurst, IL1881983484
- Habib Abbasi, M.D.Joliet, IL1902832835
- Andrew Abbeg, D.O.Greenville, IL1548490311
- Ryan Abbott, DOChicago, IL1477243517
- Ahmad Abdulla, MDOak Lawn, IL1467202556
- Zakaria Abdulnabi, M.D.Urbana, IL1790135499
- Aziz Abed, M.D.Harvey, IL1477874154
- Logan Abel, MDChicago, IL1447900592
Common questions
What is Zachary R. Book, MD's NPI number?
Zachary R. Book, MD's National Provider Identifier (NPI) is 1972739431, issued on Jun 10, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Zachary R. Book, MD located?
The NPPES record lists a practice address at 7435 W Talcott Ave, Chicago, IL, 60631. Phone: (773) 792-7921. Providers update this record themselves, so call before visiting.
How can I verify Zachary R. Book, MD's license?
NPPES lists Illinois license number 125-056738, 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 Zachary R. Book, MD prescribe under Medicare Part D?
In 2024, Zachary R. Book, MD had 64 Medicare Part D claims for 49 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Zachary R. Book, MD's MIPS final score?
The 2023 MIPS final score is 78.3 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.