Timothy Olthoff, DPT
Physical Therapist · Grand Rapids, MI
Timothy Olthoff, DPT is a physical therapist with a practice address in Grand Rapids, Michigan, and NPI 1679022115, issued on Sep 26, 2016. Check the license (Michigan 5501017892, as entered in NPPES) with the Michigan board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Timothy Olthoff
- Credential
- DPT
- Primary taxonomy
- Physical Therapist 225100000X
- License number
- 5501017892 MI
Self-reported in NPPES; status is on the state search - Practice location
- 3826 44TH St SE, Grand Rapids, MI 49512
- Phone
- (616) 554-0918
- Enumerated
- Sep 26, 2016
- Record last updated
- Sep 26, 2016 (not updated in 10 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20161021000064); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physical therapist records → All 9,592 in Michigan → Look up another NPI →
Also registered at 3826 44TH St SE
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Emily Grobbel, DPTPhysical Therapist1730793225
- Eric HamiltonPhysical Therapist1831703156
- Rebecca Leonard, DPTPhysical Therapist1346799897
- Colin Seidowski, DPTPhysical Therapist1477216240
- Brendan Sullivan, DPTPhysical Therapist1295417624
- Abbie Weston, DPTPhysical Therapist1710496583
Verify Timothy Olthoff in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Michigan board licenses this profession
Search for license 5501017892Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Health Motion Physical Therapy Services IncKentwood, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Timothy Olthoff among 9,592 physical therapist records in Michigan
Timothy Olthoff, DPT is one of 9,592 physical therapist records with a practice address in Michigan. 31% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 44% of them.
- NPI issued2016 · 44% of these records are older, 52% newer
- In a Medicare fileYes · 31% of these records are
- In the CMS Doctors and Clinicians fileYes · 32% of these records are
- Graduated2016 · median 2015 among the 3,075 with a school on file
- Record last updated2016 · 68% 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 Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
651 physical therapist records list a practice address in Grand Rapids
They are 651 of the 18,005 NPPES records with a practice address in Grand Rapids, and 9,592 physical therapist records in Michigan.
All 9,592 in Michigan → Every provider in Grand Rapids → Physical Therapist nationwide →
The 8 physical therapist records with the nearest ZIP codes
- Laura Devries, PT, DPTKentwood, MI 495121518122548
- Leah Giaquinta, PTKentwood, MI 495121699886333
- Sarah Harlow, PT, DPTKentwood, MI 495121952829855
- Erik Heinlein, PT, DPTGrand Rapids, MI 495121326432428
- Sarah Hirt, PTGrand Rapids, MI 495121568742369
- Natalie Howard, MSPTKentwood, MI 495121780946202
- Dawn KuhnKentwood, MI 495121437388568
- Rebecca Leonard, DPTGrand Rapids, MI 495121346799897
Common questions
What is Timothy Olthoff, DPT's NPI number?
Timothy Olthoff, DPT's National Provider Identifier (NPI) is 1679022115, issued on Sep 26, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Timothy Olthoff, DPT located?
The NPPES record lists a practice address at 3826 44TH St SE, Grand Rapids, MI, 49512. Phone: (616) 554-0918. Providers update this record themselves, so call before visiting.
How can I verify Timothy Olthoff, DPT's license?
NPPES lists Michigan license number 5501017892, as entered by the provider. Search the Michigan board that licenses this profession; the NPPES record confirms identity 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.