Drew Allan Spencer
Neurological Surgery Physician · Naperville, IL
Drew Allan Spencer is a neurological surgery physician with a practice address in Naperville, Illinois, and NPI 1164748026, issued on Apr 15, 2010. Check the license (Illinois 036.143037, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Drew Allan Spencer
- Primary taxonomy
- Neurological Surgery Physician 207T00000X
- License number
- 036.143037 IL
Self-reported in NPPES; status is on the state search - Practice location
- 120 Spalding Dr Ste 308, Naperville, IL 60540
- Phone
- (630) 527-7730
- Enumerated
- Apr 15, 2010
- Record last updated
- Apr 19, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (630) 527-7197
- Medicare enrollment
- Enrolled (PECOS I20170615000430); accepts Medicare assignment
- Medical or professional school
- Southern Illinois University School Of Medicine, 2010
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest neurological surgery physician records → All 375 in Illinois → Look up another NPI →
Also registered at 120 Spalding Dr Ste 308
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Alexa Arroyo, PA-CSurgical Physician Assistant1033977673
- Elizabeth Callahan, DOPhysical Medicine & Rehabilitation Physician1417585704
- Gustavo Chagoya Gazcon, M.D.Neurological Surgery Physician1538555081
- Daniel Heiferman, M.D.Neurological Surgery Physician1891037370
- Christine Hopkins, APN-CNPNurse Practitioner1144481946
- Kevin Jackson, MDNeurological Surgery Physician1821103581
Verify Drew Allan Spencer 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 036.143037Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
10% fewer Medicare Part D claims than the average neurological surgery physician in 2024
154 Medicare Part D claims for 79 beneficiaries, against an average of 172 among the 4,378 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 40 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen25 claims
- Gabapentin22 claims
- Cyclobenzaprine Hcl20 claims
- Diclofenac Sodium19 claims
- Cephalexin13 claims
- Tramadol Hcl12 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 MIPS final score for 2023 (Medicare payment program): 94.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Northwestern Medical Faculty FoundationPalos Heights, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Drew Allan Spencer among 375 neurological surgery physician records in Illinois
Drew Allan Spencer is one of 375 neurological surgery physician records with a practice address in Illinois. 77% 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 55% of them.
- NPI issued2010 · 55% of these records are older, 42% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated2010 · median 2004 among the 199 with a school on file
- Record last updated2021 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207T00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurological Surgery Physician providers in Illinois
There are 375 neurological surgery physician records in Illinois.
All 375 in Illinois → Every provider in Naperville → Neurological Surgery Physician nationwide →
The 8 neurological surgery physician records with the nearest ZIP codes
- Michael Caron, MDNaperville, IL 605401275738023
- Gustavo Chagoya Gazcon, M.D.Naperville, IL 605401538555081
- Ahmed Cheema, MDNaperville, IL 605401942435375
- Daniel Heiferman, M.D.Naperville, IL 605401891037370
- Kevin Jackson, MDNaperville, IL 605401821103581
- William Schueler, MDNaperville, IL 605401780726505
- Frederick Brown, MDBurr Ridge, IL 605271528123353
- Javad Hekmatpanah, MDBurr Ridge, IL 605271699830422
Common questions
What is Drew Allan Spencer's NPI number?
Drew Allan Spencer's National Provider Identifier (NPI) is 1164748026, issued on Apr 15, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Drew Allan Spencer located?
The NPPES record lists a practice address at 120 Spalding Dr Ste 308, Naperville, IL, 60540. Phone: (630) 527-7730. Providers update this record themselves, so call before visiting.
How can I verify Drew Allan Spencer's license?
NPPES lists Illinois license number 036.143037, 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 Drew Allan Spencer prescribe under Medicare Part D?
In 2024, Drew Allan Spencer had 154 Medicare Part D claims for 79 beneficiaries; the average among neurological surgery physician prescribers was 172. Part D covers Medicare prescriptions only.
What is Drew Allan Spencer's MIPS final score?
The 2023 MIPS final score is 94.1 of 100. 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.