Quick answers
- Does Theresa E. Tassey accept Medicare assignment?
- Yes. Medicare's clinician data says Theresa E. Tassey 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 Theresa E. Tassey see?
- In 2024, CMS data shows 277 Original Medicare patients and 312 services for Theresa E. Tassey. This counts Original Medicare only and measures volume, not quality.
- What is Theresa E. Tassey's NPI number?
- 1629416672. 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 Theresa E. Tassey, 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 | 277 |
|---|---|
| Services billed to Medicare | 312 |
| Different services or procedures | 15 |
| Participating Medicare provider | Yes |
| Average age of these patients | 78 |
Most frequent services
- Emergency department visit with high level of medical decision making (99285)155 services
- Critical care, first 30-74 minutes (99291)81 services
- Emergency department visit with moderate level of medical decision making (99284)48 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 cholesterol75%
- Arthritis60%
- Heart failure43%
- Ischemic heart disease41%
- Diabetes40%
Hospitals where Theresa E. Tassey works
Medicare's Facility Affiliation Data lists Theresa E. Tassey 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.
- Bayhealth Hospital, Sussex CampusMilford, DE · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 080009
- Memorial HealthLawton, OK · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 370056
- Saint Francis Hospital MuskogeeMuskogee, OK · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 370025
- Saint Francis Hospital South, LLCTulsa, OK · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 370218
- Saint Francis Hospital, IncTulsa, OK · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 370091
Practice locations
Addresses where Theresa E. Tassey is enrolled with Medicare (CMS data updated October 2, 2026).
- 10 E 31st StKearney, NE 68847 (308) 865‑7100
- 2620 W Faidley Ave, CHI Health St FrancisGrand Island, NE 68803 (308) 384‑4600
- 5602 SW Lee BlvdLawton, OK 73505 (580) 531‑4700
- 640 S State St, Bayhealth Emergency Physicians KghDover, DE 19901 (302) 744‑6156
Group practices
Medicare enrollment lists Theresa E. Tassey as a member of these groups (CMS data updated October 2, 2026).
- Bayhealth Emergency Physicians LLC87 clinicians in the group
- Midwest Emergency Grand Island Inc18 clinicians in the group
- Ies Oklahoma LLC16 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Kearney
Clinicians with the same Medicare primary specialty in Kearney, NE — not a recommendation.
Other clinicians in Bayhealth Emergency Physicians LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2013 (13 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1629416672 |
| 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