Mary MacKenzie O'Hayer, OTRL
- Affiliated sites
- 2
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2025
- Practice address
- 1173 Rock Springs Road, Smyrna, TN 37167
- Practice phone
- Call (615) 220-5796
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Feltz Therapy Services - Smyrna (Rock Springs Rd)
Multi-Specialty Rehab Clinic · Smyrna, Tennessee
Find Mary O'Hayer's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Mary MacKenzie O'Hayer is an occupational therapist in Smyrna, Tennessee
Mary O'Hayer practices at Feltz Therapy Services - Smyrna (Rock Springs Rd) in Smyrna, Tennessee.
Mary O'Hayer's NPI, 1093603375, was assigned on June 25, 2025. Mary O'Hayer holds Tennessee license 8360.
- NPI
- 1093603375NPI Registry (opens in a new tab)
- NPI enumeration date
- June 25, 2025
- NPI status
- Active
- Practice phone
- (615) 220-5796
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Mary MacKenzie O'Hayer practices at Feltz Therapy Services - Smyrna (Rock Springs Rd) in Smyrna, Tennessee
Mary O'Hayer's primary practice is Feltz Therapy Services - Smyrna (Rock Springs Rd), at 1173 Rock Springs Road, Smyrna, TN 37167. The practice phone is (615) 220-5796.
- Feltz Therapy Services - Smyrna (Rock Springs Rd)1173 Rock Springs Road, Smyrna, TN 37167Phone(615) 220-5796
Source: Dmand AI Affiliation Data
Mary MacKenzie O'Hayer is affiliated with 2 sites of care and 1 medical group
Mary O'Hayer's primary practice is Feltz Therapy Services - Smyrna (Rock Springs Rd) in Smyrna, Tennessee. The medical group on file is Feltz Therapy Services, LLC. Dmand AI also links Mary O'Hayer to 1 more group practice or clinic, named with a free account. Mary O'Hayer's employer is on file too: a physical therapy & rehab clinic.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Mary MacKenzie O'Hayer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Mary O'Hayer practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Feltz Therapy Services - Smyrna (Rock Springs Rd) | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Mary MacKenzie O'Hayer is one of 618 occupational therapists in Tennessee
Occupational therapist is Mary O'Hayer's primary specialty in the NPI Registry, under taxonomy code 225X00000X. Mary O'Hayer is licensed in Tennessee.
Specialties and state licenses
- Occupational therapist, TennesseePrimary
Occupational therapists near Mary O'Hayer
Counts of occupational therapists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Mary MacKenzie O'Hayer's patients have a median age of 6
Across all payers, Dmand AI patient panel data puts Mary O'Hayer's median patient age at 6, with 20% women.
Mary O'Hayer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 6
Patient panel by sex, all payers
- Women20%
- Men80%
Source: Dmand AI Patient Panel Data
Sources for Mary MacKenzie O'Hayer's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Mary MacKenzie O'Hayer
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Mary MacKenzie O'Hayer's NPI number?
Mary MacKenzie O'Hayer's NPI number is 1093603375. It was assigned on June 25, 2025, and it is active in the NPI Registry.
What does Mary MacKenzie O'Hayer specialize in?
Mary MacKenzie O'Hayer is an occupational therapist in Smyrna, Tennessee. The primary specialty in the NPI Registry is Occupational Therapist (taxonomy code 225X00000X).
Where does Mary MacKenzie O'Hayer practice?
Mary O'Hayer practices at 1173 Rock Springs Road, Smyrna, TN 37167. Mary O'Hayer's primary practice is Feltz Therapy Services - Smyrna (Rock Springs Rd) in Smyrna, Tennessee. Dmand AI also links Mary O'Hayer to 1 group practice or clinic.
What is Mary MacKenzie O'Hayer's office phone number?
The practice phone on file for Mary O'Hayer is (615) 220-5796.
What is Mary MacKenzie O'Hayer's medical license number?
Mary O'Hayer holds Tennessee license 8360.
What medical group is Mary MacKenzie O'Hayer part of?
Mary O'Hayer is linked to Feltz Therapy Services, LLC.
How long has Mary MacKenzie O'Hayer been practicing?
Mary O'Hayer's NPI was assigned in 2025.
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