Margaret Grayson, OTR/L
Occupational Therapist · Denver, CO
Margaret Grayson, OTR/L is an occupational therapist with a practice address in Denver, Colorado, and NPI 1811854540, issued on Jan 6, 2026. Check the license (Colorado OT.0006231, as entered in NPPES) with the Colorado board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Margaret Grayson
- Credential
- OTR/L
- Primary taxonomy
- Occupational Therapist 225X00000X
- License number
- OT.0006231 CO
Self-reported in NPPES; status is on the state search - Practice location
- 301 S Harrison St, Denver, CO 80209
- Phone
- (720) 668-0961
- Enumerated
- Jan 6, 2026
- Record last updated
- Jan 6, 2026
- Medicare enrollment
- Enrolled (PECOS I20260115002567); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest occupational therapist records → All 2,846 in Colorado → Look up another NPI →
Also registered at 301 S Harrison St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lauren Nemmers, OTD, OTR/LOccupational Therapist1669252326
Verify Margaret Grayson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Colorado board licenses this profession
Search for license OT.0006231Check 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
- Empowerme Rehabilitation Colorado, LLCDenver, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Margaret Grayson among 2,846 occupational therapist records in Colorado
Margaret Grayson, OTR/L is one of 2,846 occupational therapist records with a practice address in Colorado. 9% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2026, is newer than 98% of them.
- NPI issued2026 · 98% of these records are older, 0% newer
- In a Medicare fileYes · 9% of these records are
- In the CMS Doctors and Clinicians fileYes · 11% of these records are
- Graduated2019 · median 2016 among the 322 with a school on file
- Record last updated2026 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 225X00000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
434 occupational therapist records list a practice address in Denver
They are 434 of the 25,068 NPPES records with a practice address in Denver, and 2,846 occupational therapist records in Colorado.
All 2,846 in Colorado → Every provider in Denver → Occupational Therapist nationwide →
The 8 occupational therapist records with the nearest ZIP codes
- Jordyn Curry, OTRDenver, CO 802091588113872
- Madison Farrior, OTD, OTR/LDenver, CO 802091053047902
- Sarah Jasso, OTR/LDenver, CO 802091396270922
- Sarah Johnson, OTR/L, CLTDenver, CO 802091215187844
- Hannah LentzDenver, CO 802091750033171
- Kaitlin Merchant, OTR/LDenver, CO 802091407398233
- Alexis Miller, OTRDenver, CO 802091205040003
- Lauren Nemmers, OTD, OTR/LDenver, CO 802091669252326
Common questions
What is Margaret Grayson, OTR/L's NPI number?
Margaret Grayson, OTR/L's National Provider Identifier (NPI) is 1811854540, issued on Jan 6, 2026. An NPI identifies a provider in billing; it is not a license.
Where is Margaret Grayson, OTR/L located?
The NPPES record lists a practice address at 301 S Harrison St, Denver, CO, 80209. Phone: (720) 668-0961. Providers update this record themselves, so call before visiting.
How can I verify Margaret Grayson, OTR/L's license?
NPPES lists Colorado license number OT.0006231, as entered by the provider. Search the Colorado 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.