Sienna Extended Care & Rehab
9221 Harmony Drive, Midwest City, OK, 73130
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Order the reportFederal Quality Data
Official records from CMS Care Compare — reported by the facility and audited by the Centers for Medicare & Medicaid Services. We present them unmodified. Refreshed June 2026.
CMS Star Ratings
Facility & Staffing
- Ownership
- For profit - Corporation
- Certified beds
- 100 · avg 83 residents/day
Medicare certification
- CMS Certification Number
- 375534
- Certified beds
- 100 beds · avg 83 residents/day
- Ownership type
- For profit - Corporation
- Continuing-care community
- No
CMS Care Compare, processing date June 1, 2026
Ownership & operations
- Legal business name
- Sienna Extended Care & Rehab Llc
CMS Care Compare, processing date June 1, 2026
Federal ownership record
Parent entity
Sienna Extended Care & Rehab Llc
Disclosed owners (5 on record)
- Julie st John Mahaney
Adp of The Snf · since 2025
- Adam Stephens
Adp of The Snf · since 2025
- Bobbie Montgomery
5% or Greater Direct Ownership Interest · 100% · since 2009
- Schuyler Montgomery
Corporate Director · 100% · since 2009
- Sienna Extended Care & Rehab LlcParent
5% or Greater Direct Ownership Interest · 100% · since 2009
Source: CMS Provider Enrollment data — SNF Enrollments + All Owners, as of May 2026.
Federal inspection record
Immediate-jeopardy citations (CMS scope/severity J–L) are the most serious category federal inspectors issue — meaning a deficiency placed residents in immediate risk of serious harm. Ask the facility for the corrective-action plan filed with CMS, and consider contacting your state long-term care ombudsman for context.
Recent health-deficiency citations (most recent 8 of 31)
- D0695·Apr 21, 2025Complaint
Quality of Life and Care Deficiencies
Provide safe and appropriate respiratory care for a resident when needed.
- D0684·Apr 21, 2025Complaint
Quality of Life and Care Deficiencies
Provide appropriate treatment and care according to orders, resident’s preferences and goals.
- D0609·Apr 21, 2025Complaint
Freedom from Abuse, Neglect, and Exploitation Deficiencies
Timely report suspected abuse, neglect, or theft and report the results of the investigation to proper authorities.
- D0600·Apr 21, 2025Complaint
Freedom from Abuse, Neglect, and Exploitation Deficiencies
Protect each resident from all types of abuse such as physical, mental, sexual abuse, physical punishment, and neglect by anybody.
- F0577·Apr 21, 2025Complaint
Resident Rights Deficiencies
Allow residents to easily view the nursing home's survey results and communicate with advocate agencies.
- D0943·Apr 21, 2025
Freedom from Abuse, Neglect, and Exploitation Deficiencies
Give their staff education on dementia care, and what abuse, neglect, and exploitation are; and how to report abuse, neglect, and exploitation.
- E0880·Apr 21, 2025
Infection Control Deficiencies
Provide and implement an infection prevention and control program.
- D0801·Apr 21, 2025
Nutrition and Dietary Deficiencies
Employ sufficient staff with the appropriate competencies and skills sets to carry out the functions of the food and nutrition service, including a qualified dietician.
Fire-safety citations
8 Life-Safety-Code citations on file. Most recent: Apr 21, 2025. Fire-safety inspections cover building-level Life Safety Code compliance, separate from the resident-care health survey.
Source: CMS Provider Data Catalog — Health Deficiencies, Fire Safety Deficiencies, and Penalties datasets, snapshot Jun 1, 2026.
Facility background report
The entire federal paper trail on this facility, in one report.
We compile everything the government publishes about Sienna Extended Care & Rehabinto one plain-English report: full inspection history with severity grades, every fine, staffing versus state averages, who really owns the facility, and how the owner's other facilities perform. Every fact cites its federal source.
Order the full background report — $249Where this information comes from
- Certification, capacity, ownership, star ratings, staffing, fines, deficiencies: CMS Care Compare, processing date June 1, 2026.
Data comes unaltered from the federal files. See every source we publish from.