Mary Osborne, APN
NPI 1639621071 · Family Nurse Practitioner · Chicago, IL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Osborne, APN is a Family Nurse Practitioner provider in Chicago, IL (NPI 1639621071).
Provider details
- NPI number
- 1639621071
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APN
- Sex
- Female
- Sole proprietor
- No
- License
- 209.014944 (IL)
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 tenure38% of score
9 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 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 76 | 13 |
| Lisinopril | 46 | — |
| Metformin Hcl | 37 | — |
| Montelukast Sodium | 31 | — |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 23 | — |
| Alcohol Antiseptic Padsbrand: Alcohol Prep Pads | 20 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2016-11-02
- Last updated
- 2021-08-09
- Certified
- 2021-08-09
Frequently asked questions
- What is Mary Osborne's NPI number?
- Mary Osborne's National Provider Identifier (NPI) is 1639621071, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Osborne's specialty?
- Mary Osborne is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Osborne located?
- Mary Osborne's practice location on file with NPPES is 2418 W Division St, Chicago, IL 60622-2940.
- What is Mary Osborne's phone number?
- The practice phone number listed in the NPPES registry for Mary Osborne is (312) 666-3494.
- Does Mary Osborne accept Medicare?
- Mary Osborne is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Osborne's NPI active?
- Yes — Mary Osborne's NPI (1639621071) is active in the NPPES registry as of the last update on 2021-08-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.