Hannah Ostermann
NPI 1457908295 · Physician Assistant · Oak Lawn, IL
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hannah Ostermann is a Physician Assistant provider in Oak Lawn, IL (NPI 1457908295).
Provider details
- NPI number
- 1457908295
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 085-007307 (IL)
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 tenure38% of score
6 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 4 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl | 29 | 28 |
| Cyclobenzaprine Hcl | 18 | 17 |
| Tramadol Hcl | 16 | 16 |
| Baclofen | 16 | 16 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2019-08-26
- Last updated
- 2021-12-12
- Certified
- 2021-12-12
Frequently asked questions
- What is Hannah Ostermann's NPI number?
- Hannah Ostermann's National Provider Identifier (NPI) is 1457908295, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hannah Ostermann's specialty?
- Hannah Ostermann is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Hannah Ostermann located?
- Hannah Ostermann's practice location on file with NPPES is 4400 W 95th St Ste 407&409, Oak Lawn, IL 60453-2654.
- What is Hannah Ostermann's phone number?
- The practice phone number listed in the NPPES registry for Hannah Ostermann is (708) 684-5735.
- Does Hannah Ostermann accept Medicare?
- Hannah Ostermann is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hannah Ostermann's NPI active?
- Yes — Hannah Ostermann's NPI (1457908295) is active in the NPPES registry as of the last update on 2021-12-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.