Rachel Koshalek
NPI 1659904100 · Medical Physician Assistant · Madison, WI
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Rachel Koshalek is a Medical Physician Assistant provider in Madison, WI (NPI 1659904100).
Provider details
- NPI number
- 1659904100
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 5120-23 (WI)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
6 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
245 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 77 | $52 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 61 | $94 |
| Emergency Department Visit With High Level of Medical Decision Making99285 | 45 | $136 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 22 | $77 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 22 | $55 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cephalexin | 39 | 39 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 36 | 35 |
| Doxycycline Monohydrate | 32 | 32 |
| Prednisone | 30 | 28 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 19 | 18 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 12 | 12 |
| Ondansetron |
Practice location
Mailing address
Additional practice locations (1)
- 5249 E Terrace DrMadison, WI 53718-8339Phone: (608) 265-1280Fax: (608) 504-4133
Registry dates
- Enumerated
- 2020-02-12
- Last updated
- 2025-02-26
- Certified
- 2025-02-26
Frequently asked questions
- What is Rachel Koshalek's NPI number?
- Rachel Koshalek's National Provider Identifier (NPI) is 1659904100, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Rachel Koshalek's specialty?
- Rachel Koshalek is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Rachel Koshalek located?
- Rachel Koshalek's practice location on file with NPPES is 4621 Eastpark Blvd, Madison, WI 53718-2000.
- What is Rachel Koshalek's phone number?
- The practice phone number listed in the NPPES registry for Rachel Koshalek is (608) 915-0400.
- Does Rachel Koshalek accept Medicare?
- Rachel Koshalek is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Rachel Koshalek's NPI active?
- Yes — Rachel Koshalek's NPI (1659904100) is active in the NPPES registry as of the last update on 2025-02-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.