Donald Duzenack
Occupational Therapist · Loveland, CO
Donald Duzenack is an occupational therapist with a practice address in Loveland, Colorado, and NPI 1154045763, issued on Sep 27, 2022. Check the license (Colorado OT.0001899, as entered in NPPES) with the Colorado board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Donald Duzenack
- Primary taxonomy
- Occupational Therapist 225X00000X
- License number
- OT.0001899 CO
Self-reported in NPPES; status is on the state search - Practice location
- 225 Gerry Dr, Loveland, CO 80537
- Phone
- (970) 443-8952
- Enumerated
- Sep 27, 2022
- Record last updated
- Sep 27, 2022
- Medicare enrollment
- Enrolled (PECOS I20221005003243); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest occupational therapist records → All 2,846 in Colorado → Look up another NPI →
Verify Donald Duzenack 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.0001899Check 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
- Covell Care And Rehabilitation LLCWindsor, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Donald Duzenack among 2,846 occupational therapist records in Colorado
Donald Duzenack 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 2022, is newer than 73% of them.
- NPI issued2022 · 73% of these records are older, 21% newer
- In a Medicare fileYes · 9% of these records are
- In the CMS Doctors and Clinicians fileYes · 11% of these records are
- Graduated1997 · median 2016 among the 322 with a school on file
- Record last updated2022 · 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).
68 occupational therapist records list a practice address in Loveland
They are 68 of the 2,113 NPPES records with a practice address in Loveland, and 2,846 occupational therapist records in Colorado.
All 2,846 in Colorado → Every provider in Loveland → Occupational Therapist nationwide →
The 8 occupational therapist records with the nearest ZIP codes
- Jackie Bishop, OTRLoveland, CO 805371497171045
- Catherine BjorgaardLoveland, CO 805371891046082
- Carol Chop, MSOTRLoveland, CO 805371609110980
- Karen Harmon, MS OTRLoveland, CO 805371750580619
- Aimee Helminiak, OTLoveland, CO 805371124265947
- Kristina Kramer, OTLoveland, CO 805371588921548
- Kathleen Maguire, MSOTRLoveland, CO 805371831415629
- Lynne McPhail, OTRLoveland, CO 805371871726489
Common questions
What is Donald Duzenack's NPI number?
Donald Duzenack's National Provider Identifier (NPI) is 1154045763, issued on Sep 27, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Donald Duzenack located?
The NPPES record lists a practice address at 225 Gerry Dr, Loveland, CO, 80537. Phone: (970) 443-8952. Providers update this record themselves, so call before visiting.
How can I verify Donald Duzenack's license?
NPPES lists Colorado license number OT.0001899, 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.