Margaret Gallagher, APN
NPI 1609270859 · Nurse Practitioner · Chicago, IL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret Gallagher, APN is a Nurse Practitioner provider in Chicago, IL (NPI 1609270859).
Provider details
- NPI number
- 1609270859
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APN
- Sex
- Female
- Sole proprietor
- No
- License
- 209011980 (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 tenure28% of score
11 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
394 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) |
|---|---|---|
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 159 | $88 |
| Subsequent Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, at Least 45 Minutes99310 | 100 | $126 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 65 | $88 |
| Subsequent Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, at Least 45 Minutes99310 | 41 | $126 |
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 15 | $61 |
| Advance Care Planning, First 30 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 24 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Meloxicam | 67 | — |
| Furosemide | 57 | — |
| Montelukast Sodium | 55 | — |
| Potassium Chloride | 55 | — |
| Baclofen | 48 | — |
| Pantoprazole Sodium | 48 | — |
| Levothyroxine Sodium | 47 | — |
| Losartan Potassium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2014-10-17
- Last updated
- 2015-03-08
Frequently asked questions
- What is Margaret Gallagher's NPI number?
- Margaret Gallagher's National Provider Identifier (NPI) is 1609270859, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Gallagher's specialty?
- Margaret Gallagher is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Margaret Gallagher located?
- Margaret Gallagher's practice location on file with NPPES is 125 S Wacker Dr, Chicago, IL 60606-4424.
- What is Margaret Gallagher's phone number?
- The practice phone number listed in the NPPES registry for Margaret Gallagher is (866) 259-1631.
- Does Margaret Gallagher accept Medicare?
- Margaret Gallagher is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret Gallagher's NPI active?
- Yes — Margaret Gallagher's NPI (1609270859) is active in the NPPES registry as of the last update on 2015-03-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.