Amber Oshan, PA
NPI 1649274085 · Medical Physician Assistant · Sparta, WI
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Amber Oshan, PA is a Medical Physician Assistant provider in Sparta, WI (NPI 1649274085).
Provider details
- NPI number
- 1649274085
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Female
- Sole proprietor
- No
- License
- 1460 (WI)
Specialties & taxonomies
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
21 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
823 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 175 | $102 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 140 | $13 |
| Blood Creatinine Level82565 | 78 | $5 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 73 | $103 |
| Blood Potassium Level84132 | 61 | $5 |
| Blood Glucose (sugar) Level82947 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 103 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 454 | 118 |
| Amlodipine Besylate | 254 | 69 |
| Metoprolol Succinate | 235 | 53 |
| Lisinopril | 201 | 51 |
| Levothyroxine Sodium | 167 | 42 |
| Losartan Potassium | 164 | 43 |
| Apixaban |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-06-13
- Last updated
- 2016-04-28
Frequently asked questions
- What is Amber Oshan's NPI number?
- Amber Oshan's National Provider Identifier (NPI) is 1649274085, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Amber Oshan's specialty?
- Amber Oshan is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Amber Oshan located?
- Amber Oshan's practice location on file with NPPES is 315 W Oak St, Sparta, WI 54656-2150.
- What is Amber Oshan's phone number?
- The practice phone number listed in the NPPES registry for Amber Oshan is (608) 269-6731.
- Does Amber Oshan accept Medicare?
- Amber Oshan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Amber Oshan's NPI active?
- Yes — Amber Oshan's NPI (1649274085) is active in the NPPES registry as of the last update on 2016-04-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.