Quick answers
- Does Jennifer A. Regan accept Medicare assignment?
- Yes. Medicare's clinician data says Jennifer A. Regan 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 Jennifer A. Regan see?
- In 2024, CMS data shows 108 Original Medicare patients and 4,120 services for Jennifer A. Regan. This counts Original Medicare only and measures volume, not quality.
- What is Jennifer A. Regan's NPI number?
- 1548571284. 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 Jennifer A. Regan, 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 | 108 |
|---|---|
| Services billed to Medicare | 4,120 |
| Different services or procedures | 30 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Test for allergy using allergenic extract (95004)462 services
- Professional service for multiple injections of allergen (95117)116 services
- Professional service for single injection of allergen (95115)92 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)65 services
- Administration and interpretation of patient-focused health risk assessment (96160)36 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 cholesterol63%
- High blood pressure55%
- Arthritis53%
- Asthma51%
- Diabetes17%
- Anxiety17%
Practice locations
Addresses where Jennifer A. Regan is enrolled with Medicare (CMS data updated October 2, 2026).
- 22605 SE 56th St, Suite 270Issaquah, WA 98029 (425) 395‑0175
- 8301 161st Ave NE, Suite 308Redmond, WA 98052 (425) 885‑0261
Group practices
Medicare enrollment lists Jennifer A. Regan as a member of this group (CMS data updated October 2, 2026).
- Northwest Asthma and Allergy Center11 clinicians in the group
Specialties
- Allergy/Immunologyprimary
Other allergist and immunologists in Washington
Clinicians with the same Medicare primary specialty in Washington — not a recommendation.
Other clinicians in Northwest Asthma and Allergy Center
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Northwestern University Feinberg Medical School |
| Graduation year | 2000 (26 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1548571284 |
| 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