Gregory Grzesiak, PT
Physical Therapist · Westmont, IL
Gregory Grzesiak, PT is a physical therapist with a practice address in Westmont, Illinois, and NPI 1134361967, issued on Mar 25, 2009. Check the license (Illinois 070016834, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gregory Grzesiak
- Credential
- PT
- Primary taxonomy
- Physical Therapist 225100000X
- License number
- 070016834 IL
Self-reported in NPPES; status is on the state search - Practice location
- 337 W Ogden Ave, Westmont, IL 60559
- Phone
- (630) 323-8646
- Enumerated
- Mar 25, 2009
- Record last updated
- Mar 5, 2024
- Fax
- (630) 323-8656
- Medicare enrollment
- Enrolled (PECOS I20090709000583); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physical therapist records → All 12,045 in Illinois → Look up another NPI →
Also registered at 337 W Ogden Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Samantha BennettPhysical Therapist1285248617
- John Christiansen, PTPhysical Therapist1366454878
- Brielle Ciucci, PT, DPTPhysical Therapist1942330824
- Paula Gross, PTAPhysical Therapy Assistant1548120082
- Kathleen Kilburg, MPTPhysical Therapist1508878018
- Amber Kline, DPTPhysical Therapist1639350275
Verify Gregory Grzesiak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 070016834Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 95 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).
Bills Medicare through one group practice
- First Venture Rehabilitation Clinics, LLCWestmont, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory Grzesiak among 12,045 physical therapist records in Illinois
Gregory Grzesiak, PT is one of 12,045 physical therapist records with a practice address in Illinois. 36% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 32% of them.
- NPI issued2009 · 32% of these records are older, 65% newer
- In a Medicare fileYes · 36% of these records are
- In the CMS Doctors and Clinicians fileYes · 37% of these records are
- Graduated2007 · median 2015 among the 4,392 with a school on file
- Record last updated2024 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 225100000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
103 physical therapist records list a practice address in Westmont
They are 103 of the 814 NPPES records with a practice address in Westmont, and 12,045 physical therapist records in Illinois.
All 12,045 in Illinois → Every provider in Westmont → Physical Therapist nationwide →
The 8 physical therapist records with the nearest ZIP codes
- John Christiansen, PTWestmont, IL 605591366454878
- Lori Clements, PTWestmont, IL 605591790773364
- Beatrice DamoWestmont, IL 605591053485763
- Linda Finn, PTWestmont, IL 605591326050840
- Leigh Grell, MPTWestmont, IL 605591427009448
- Susan Hoskins, PT, MPTWestmont, IL 605591942207147
- Kathleen Kilburg, MPTWestmont, IL 605591508878018
- Philip Kushner, PT, DPT, OCSWestmont, IL 605591427071638
Common questions
What is Gregory Grzesiak, PT's NPI number?
Gregory Grzesiak, PT's National Provider Identifier (NPI) is 1134361967, issued on Mar 25, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Grzesiak, PT located?
The NPPES record lists a practice address at 337 W Ogden Ave, Westmont, IL, 60559. Phone: (630) 323-8646. Providers update this record themselves, so call before visiting.
How can I verify Gregory Grzesiak, PT's license?
NPPES lists Illinois license number 070016834, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
What is Gregory Grzesiak, PT's MIPS final score?
The 2023 MIPS final score is 95 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.