Jason Olszewski
NPI 1548458128 · Physician Assistant · Baltimore, MD
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jason Olszewski is a Physician Assistant provider in Baltimore, MD (NPI 1548458128).
Provider details
- NPI number
- 1548458128
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Male
- Sole proprietor
- No
- License
- C0003608 (MD)
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
18 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
3,081 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 | 550 | $81 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 245 | $114 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 236 | $9 |
| Blood Test, Basic Group of Blood Chemicals (calcium, Ionized)80047 | 211 | $13 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 209 | $8 |
| X-Ray of Chest, 2 Views71046 | 182 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Doxycycline Hyclate | 46 | 46 |
| Mupirocin | 39 | 37 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 33 | 33 |
| Methylprednisolone | 27 | 27 |
| Cefuroxime Axetilbrand: Cefuroxime | 25 | 25 |
| Azithromycin | 21 | 21 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 20 | 20 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-10-09
- Last updated
- 2022-03-07
- Certified
- 2022-03-07
Frequently asked questions
- What is Jason Olszewski's NPI number?
- Jason Olszewski's National Provider Identifier (NPI) is 1548458128, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jason Olszewski's specialty?
- Jason Olszewski is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Jason Olszewski located?
- Jason Olszewski's practice location on file with NPPES is 5100 Eastern Ave, Baltimore, MD 21224-2772.
- What is Jason Olszewski's phone number?
- The practice phone number listed in the NPPES registry for Jason Olszewski is (410) 814-4500.
- Does Jason Olszewski accept Medicare?
- Jason Olszewski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jason Olszewski's NPI active?
- Yes — Jason Olszewski's NPI (1548458128) is active in the NPPES registry as of the last update on 2022-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.