Quick answers
- Does Mattie N. Lethermon accept Medicare assignment?
- Yes. Medicare's clinician data says Mattie N. Lethermon accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Mattie N. Lethermon see?
- In 2024, CMS data shows 231 Original Medicare patients and 345 services for Mattie N. Lethermon. This counts Original Medicare only and measures volume, not quality.
- What is Mattie N. Lethermon's NPI number?
- 1740063577. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Mattie N. Lethermon, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 231 |
|---|---|
| Services billed to Medicare | 345 |
| Different services or procedures | 22 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)72 services
- Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes (99221)62 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)46 services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)35 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)30 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol68%
- Arthritis54%
- Diabetes34%
- Ischemic heart disease33%
- Depression33%
Hospitals where Mattie N. Lethermon works
Medicare's Facility Affiliation Data lists Mattie N. Lethermon at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Hillcrest Hospital ClaremoreClaremore, OK · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 370039
- Hillcrest Hospital SouthTulsa, OK · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 370202
- Hillcrest Medical CenterTulsa, OK · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 370001
Practice locations
Addresses where Mattie N. Lethermon is enrolled with Medicare (CMS data updated October 2, 2026).
- 1027 E Cherry StCushing, OK 74023 (918) 225‑2915
- 1145 S Utica Ave, Suite 701Tulsa, OK 74104 (918) 582‑6544
- 1202 N Muskogee PlClaremore, OK 74017 (918) 341‑2556
- 1220 N Florence Ave, Suite AClaremore, OK 74017 (918) 341‑5311
Group practices
Medicare enrollment lists Mattie N. Lethermon as a member of these groups (CMS data updated October 2, 2026).
- Ahs Oklahoma Physician Group LLC313 clinicians in the group
- Green Country Emergency Physicians Group of Tulsa, PLLC113 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Cushing
Clinicians with the same Medicare primary specialty in Cushing, OK — not a recommendation.
Other clinicians in Ahs Oklahoma Physician Group LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2023 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1740063577 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians