Quick answers
- Does Dayna Underwood accept Medicare assignment?
- Yes. Medicare's clinician data says Dayna Underwood 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 Dayna Underwood see?
- In 2024, CMS data shows 485 Original Medicare patients and 2,083 services for Dayna Underwood. This counts Original Medicare only and measures volume, not quality.
- What is Dayna Underwood's NPI number?
- 1417138959. 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 Dayna Underwood, 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 | 485 |
|---|---|
| Services billed to Medicare | 2,083 |
| Different services or procedures | 32 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)685 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)399 services
- Telephone medical discussion with physician, 11-20 minutes (99442)327 services
- Injection, triamcinolone acetonide, not otherwise specified, 10 mg (J3301)185 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)89 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 cholesterol75%
- Arthritis75%
- High blood pressure73%
- Anxiety39%
- Diabetes32%
- Depression29%
Hospitals where Dayna Underwood works
Medicare's Facility Affiliation Data lists Dayna Underwood 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.
- Mayers Memorial HospitalFall River Mills, CA · Critical Access Hospital · Emergency services: listed by Medicare · CCN 051305
- Mercy Medical Center of Mt ShastaMount Shasta, CA · Critical Access Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 051319
- Shasta Regional Medical CenterRedding, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050764
- St Elizabeth Community HospitalRed Bluff, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: not listed by Medicare · CCN 050042
Practice locations
Addresses where Dayna Underwood is enrolled with Medicare (CMS data updated October 2, 2026).
- 1255 Liberty StRedding, CA 96001 (530) 246‑2467
Group practices
Medicare enrollment lists Dayna Underwood as a member of this group (CMS data updated October 2, 2026).
- Shasta Orthopedics and Sports Medicine a Medical Corporation35 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Redding
Clinicians with the same Medicare primary specialty in Redding, CA — not a recommendation.
Other clinicians in Shasta Orthopedics and Sports Medicine a Medical Corporation
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) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1417138959 |
| 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