Paul Leonard Grindstaff, MD
Neurology Physician · Crystal Lake, IL
Paul Leonard Grindstaff, MD is a neurology physician with a practice address in Crystal Lake, Illinois, and NPI 1811948854, issued on May 15, 2006. Check the license (Illinois 336071769, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Paul Leonard Grindstaff
- Credential
- MD
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- 336071769 IL
Self-reported in NPPES; status is on the state search - Practice location
- 750 East Terra Cotta Ave, Crystal Lake, IL 60014
- Phone
- (815) 455-1800
- Enumerated
- May 15, 2006
- Record last updated
- Oct 19, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (815) 455-1875
- Medicaid ID
- 336071769 IL
- Medicare enrollment
- Enrolled (PECOS I20050331001171); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 952 in Illinois → Look up another NPI →
Verify Paul Leonard Grindstaff 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 336071769Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.3 times the Medicare Part D claims of the average neurology physician in 2024
3,102 Medicare Part D claims for 502 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims. 68 claims were for opioids.
Most prescribed
- Memantine Hcl426 claims
- Gabapentin329 claims
- Levetiracetam283 claims
- Donepezil Hcl261 claims
- Carbidopa-Levodopa171 claims
- Pregabalin137 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 FoundationCrystal Lake, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Paul Leonard Grindstaff among 952 neurology physician records in Illinois
Paul Leonard Grindstaff, MD is one of 952 neurology physician records with a practice address in Illinois. 79% 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 8% of them.
- NPI issued2006 · 8% of these records are older, 68% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1999 · median 2006 among the 573 with a school on file
- Record last updated2018 · 42% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurology Physician providers in Illinois
There are 952 neurology physician records in Illinois.
All 952 in Illinois → Every provider in Crystal Lake → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Virginia Hemelt, MDCrystal Lake, IL 600141710984638
- Ricardo Kohn, MDCrystal Lake, IL 600141295720886
- Benjamin Nager, MDCrystal Lake, IL 600141508824376
- Heeren Patel, M.D.Crystal Lake, IL 600141982865481
- Sapna Rathi, M.D.Crystal Lake, IL 600141932140472
- Jesse Taber, MDCrystal Lake, IL 600141932268570
- Jessica Wolf, MDCrystal Lake, IL 600141104441252
- Mahesh Parikh, M.D.Crystal Lake, IL 600121659309151
Common questions
What is Paul Leonard Grindstaff, MD's NPI number?
Paul Leonard Grindstaff, MD's National Provider Identifier (NPI) is 1811948854, issued on May 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Paul Leonard Grindstaff, MD located?
The NPPES record lists a practice address at 750 East Terra Cotta Ave, Crystal Lake, IL, 60014. Phone: (815) 455-1800. Providers update this record themselves, so call before visiting.
How can I verify Paul Leonard Grindstaff, MD's license?
NPPES lists Illinois license number 336071769, 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 Paul Leonard Grindstaff, MD prescribe under Medicare Part D?
In 2024, Paul Leonard Grindstaff, MD had 3,102 Medicare Part D claims for 502 beneficiaries; the average among neurology physician prescribers was 1,370. Part D covers Medicare prescriptions only.
What is Paul Leonard Grindstaff, MD'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.