NPPES file of Aug 9, 2026

Hannah Ostermann

Physician Assistant · Oak Lawn, IL

Hannah Ostermann is a physician assistant with a practice address in Oak Lawn, Illinois, and NPI 1457908295, issued on Aug 26, 2019. Check the license (Illinois 085-007307, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1457908295
Name
Hannah Ostermann
Primary taxonomy
Physician Assistant 363A00000X
License number
085-007307 IL
Self-reported in NPPES; status is on the state search
Practice location
4400 W 95TH St Ste 407&409, Oak Lawn, IL 60453
Phone
(708) 684-5735
Enumerated
Aug 26, 2019
Record last updated
Dec 12, 2021 (not updated in 5 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Hannah Ostermann in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Illinois board licenses this profession
    Search for license 085-007307
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
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83% fewer Medicare Part D claims than the average physician assistant in 2024

143 Medicare Part D claims for 70 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 51 claims were for opioids.

  1. Hannah Ostermann143
  2. Specialty average830

Most prescribed

  1. Oxycodone Hcl29 claims
  2. Cyclobenzaprine Hcl18 claims
  3. Baclofen16 claims
  4. Tramadol Hcl16 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Hannah Ostermann among 4,926 physician assistant records in Illinois

Hannah Ostermann is one of 4,926 physician assistant records with a practice address in Illinois. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 53% of them.

  • NPI issued2019 · 53% of these records are older, 42% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileNo · 69% of these records are
  • Record last updated2021 · 35% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

57 physician assistant records list a practice address in Oak Lawn

They are 57 of the 2,993 NPPES records with a practice address in Oak Lawn, and 4,926 physician assistant records in Illinois.

The 8 physician assistant records with the nearest ZIP codes

  1. Anuprit Ahuja, PA-COak Lawn, IL 604531043699184
  2. John Ancona, PAOak Lawn, IL 604531003891649
  3. Christina Caraballo, PA-COak Lawn, IL 604531295155646
  4. Allyson Glowicki, P.A.Oak Lawn, IL 604531356873004
  5. Rebecca Levy, PAOak Lawn, IL 604531265539241
  6. Paige Maniakouras, MMS, PA-COak Lawn, IL 604531831649730
  7. Sarah Manning, PA-COak Lawn, IL 604531255878518
  8. Ellen McConnell, PA-COak Lawn, IL 604531033583562

Common questions

What is Hannah Ostermann's NPI number?

Hannah Ostermann's National Provider Identifier (NPI) is 1457908295, issued on Aug 26, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Hannah Ostermann located?

The NPPES record lists a practice address at 4400 W 95TH St Ste 407&409, Oak Lawn, IL, 60453. Phone: (708) 684-5735. Providers update this record themselves, so call before visiting.

How can I verify Hannah Ostermann's license?

NPPES lists Illinois license number 085-007307, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Hannah Ostermann prescribe under Medicare Part D?

In 2024, Hannah Ostermann had 143 Medicare Part D claims for 70 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.