Quick answers
- Does Onissa S. Mitchell-Fisher accept Medicare assignment?
- Yes. Medicare's clinician data says Onissa S. Mitchell-Fisher 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 Onissa S. Mitchell-Fisher see?
- In 2024, CMS data shows 31 Original Medicare patients and 78 services for Onissa S. Mitchell-Fisher. This counts Original Medicare only and measures volume, not quality.
- What is Onissa S. Mitchell-Fisher's NPI number?
- 1255752432. 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 Onissa S. Mitchell-Fisher, 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 | 31 |
|---|---|
| Services billed to Medicare | 78 |
| Different services or procedures | 15 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month (99490)20 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)19 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 cholesterol74%
- Arthritis52%
- Depression45%
- Anxiety45%
- Diabetes42%
Practice locations
Addresses where Onissa S. Mitchell-Fisher is enrolled with Medicare (CMS data updated October 2, 2026).
- 1711 S Henderson Blvd, Suite 300Kilgore, TX 75662 (903) 988‑0605
Group practices
Medicare enrollment lists Onissa S. Mitchell-Fisher as a member of this group (CMS data updated October 2, 2026).
- Phynet, Inc.15 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Kilgore
Clinicians with the same Medicare primary specialty in Kilgore, TX — not a recommendation.
Other clinicians in Phynet, Inc.
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2013 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1255752432 |
| 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
- 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