Quick answers
- Does Carolyn L. Obrien accept Medicare assignment?
- Yes. Medicare's clinician data says Carolyn L. Obrien 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 Carolyn L. Obrien see?
- In 2024, CMS data shows 474 Original Medicare patients and 2,442 services for Carolyn L. Obrien. This counts Original Medicare only and measures volume, not quality.
- What is Carolyn L. Obrien's NPI number?
- 1548211287. 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 Carolyn L. Obrien, 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 | 474 |
|---|---|
| Services billed to Medicare | 2,442 |
| Different services or procedures | 52 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Destruction of precancer skin growth, 2-14 growths (17003)1,075 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)400 services
- Destruction of precancer skin growth, 1 growth (17000)287 services
- Biopsy of related skin growth, first growth (11102)117 services
- Destruction of skin growth, 1-14 growths (17110)112 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 cholesterol70%
- High blood pressure67%
- Arthritis43%
- Diabetes21%
- Ischemic heart disease20%
- Anxiety18%
Hospitals where Carolyn L. Obrien works
Medicare's Facility Affiliation Data lists Carolyn L. Obrien 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.
- Tacoma General Allenmore HospitalTacoma, WA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 500129
Practice locations
Addresses where Carolyn L. Obrien is enrolled with Medicare (CMS data updated October 2, 2026).
- 205 10th St NE, Suite 119Auburn, WA 98002 (253) 939‑7911
- 4907 Point Fosdick Dr NW, Suite E700Gig Harbor, WA 98335 (253) 848‑3000
Group practices
Medicare enrollment lists Carolyn L. Obrien as a member of this group (CMS data updated October 2, 2026).
- Cascade Eye and Skin Centers PC47 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Auburn
Clinicians with the same Medicare primary specialty in Auburn, WA — not a recommendation.
Other clinicians in Cascade Eye and Skin Centers PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2000 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1548211287 |
| 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