Margaret Gallagher , APN
Nurse Practitioner • Chicago, IL
125 S Wacker Dr, Suite 300
Chicago, IL 606064424
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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Margaret Gallagher is listed in NPPES under Nurse Practitioner.
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NPI assigned on October 17, 2014; this date does not establish years in practice.
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Published CMS data list 394 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 99309 — Subsequent nursing facility care with moderate level of medical decision making, per day: 159 service units.
- 99310 — Subsequent nursing facility care with high level of medical decision making, per day: 100 service units.
- 99309 — Subsequent nursing facility care with moderate level of medical decision making, per day: 65 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See all 6 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 742 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Meloxicam — 67 prescription fills, including refills.
- Furosemide — 57 prescription fills, including refills.
- Montelukast Sodium — 55 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 24 records in the table · Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 80% of clinicians listed under Nurse Practitioner in Chicago, IL (2024, 377 clinicians with data). Median for this group: 153. Middle half: 60 to 327.
More Medicare Part B services than 60% of clinicians listed under Nurse Practitioner in Illinois (2024, 2,561 clinicians with data). Median for this group: 261. Middle half: 101 to 526.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 1,453 in 2019 to 394 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2019–2024.
Practice Location & Contact Primary Location
125 S Wacker Dr
Suite 300
Chicago, IL 606064424
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
What Public CMS Data Show
Nurse Practitioner: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
79 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2024.
Medicare-allowed amount
About $39,286 in 2024
The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.
Paid by Medicare
About $30,957 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.
30-day fills
745 standardized 30-day fills in 2024
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$20,649 in 2024
The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024.
Industry payments (Open Payments)
Fewer than 11 payment records totaling $20.97 in 2023
Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.
It shows reported financial ties between this clinician and companies. You can ask your clinician about them.
These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.
General: payments not tied to research, such as meals, travel, consulting or speaking fees.
A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.
Source: CMS Open Payments, program year 2023.
NPI first issued
2014
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Margaret Gallagher has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Margaret Gallagher as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Chicago and Illinois
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 80% of clinicians listed under Nurse Practitioner in Chicago, IL (2024, 377 clinicians with data). Median for this group: 153. Middle half: 60 to 327.
More Medicare Part B services than 60% of clinicians listed under Nurse Practitioner in Illinois (2024, 2,561 clinicians with data). Median for this group: 261. Middle half: 101 to 526.
Medicare-allowed amount
A higher Medicare-allowed amount than 85% of clinicians listed under Nurse Practitioner in Chicago, IL (2024, 377 clinicians with data). Median for this group: $13,286. Middle half: $5,333 to $28,905.
A higher Medicare-allowed amount than 70% of clinicians listed under Nurse Practitioner in Illinois (2024, 2,561 clinicians with data). Median for this group: $21,010. Middle half: $8,652 to $42,014.
Paid by Medicare
A higher Medicare payment amount than 85% of clinicians listed under Nurse Practitioner in Chicago, IL (2024, 377 clinicians with data). Median for this group: $9,934. Middle half: $3,962 to $21,570.
A higher Medicare payment amount than 70% of clinicians listed under Nurse Practitioner in Illinois (2024, 2,561 clinicians with data). Median for this group: $15,151. Middle half: $6,396 to $31,322.
Medicare Part D prescriptions
More Part D prescriptions than 85% of clinicians listed under Nurse Practitioner in Chicago, IL (2024, 364 clinicians with data). Median for this group: 134. Middle half: 47 to 424.
More Part D prescriptions than 70% of clinicians listed under Nurse Practitioner in Illinois (2024, 2,572 clinicians with data). Median for this group: 259. Middle half: 80 to 930.
Part D drug cost
A higher Part D drug cost than 60% of clinicians listed under Nurse Practitioner in Chicago, IL (2024, 364 clinicians with data). Median for this group: $7,605. Middle half: $492 to $57,977.
Close to the middle for clinicians listed under Nurse Practitioner in Illinois (2024, 2,572 clinicians with data). Median for this group: $10,867. Middle half: $976 to $113,945.
952 active clinicians are listed under Nurse Practitioner with a practice address in Chicago, IL (4,894 in Illinois).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Chicago
20% of these 952 clinicians have the CMS telehealth indicator.
56.2% of these 952 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services decreased 73% from 1,453 in 2019 to 394 in 2024.
- 2019: 1,453
- 2020: 1,527
- 2021: 1,250
- 2022: 84
- 2024: 394
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Medicare-allowed amount
Medicare-allowed amount decreased 69% from $124,844 in 2019 to $39,286 in 2024.
- 2019: $124,844
- 2020: $127,703
- 2021: $123,995
- 2022: $7,256
- 2024: $39,286
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Paid by Medicare
Paid by Medicare decreased 70% from $101,607 in 2019 to $30,957 in 2024.
- 2019: $101,607
- 2020: $100,832
- 2021: $97,958
- 2022: $3,530
- 2024: $30,957
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 75% from 3,009 in 2020 to 742 in 2024.
- 2020: 3,009
- 2021: 2,679
- 2022: 1,117
- 2023: 411
- 2024: 742
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30-day fills
30-day fills decreased 75% from 3,015 in 2020 to 745 in 2024.
- 2020: 3,015
- 2021: 2,686
- 2022: 1,125
- 2023: 411
- 2024: 745
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Part D drug cost
Part D drug cost decreased 88% from $173,699 in 2020 to $20,649 in 2024.
- 2020: $173,699
- 2021: $155,568
- 2022: $53,006
- 2023: $19,843
- 2024: $20,649
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Industry payments (Open Payments)
CMS data for industry payments (Open Payments) are available for 2023 only.
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2023), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2023 (payments made January 1 – December 31, 2023): fewer than 11 records totaling $20.97.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| GlaxoSmithKline, LLC. |
Food and Beverage
In-kind items and services
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NUCALA | General | $20.97 |
Source: CMS Open Payments, program year 2023, released June 30, 2026.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners – by Provider and Service data, 2017–2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
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99309
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes
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159 | 44 | $145.00 | $87.93 |
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99310
Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes
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100 | 57 | $217.00 | $125.79 |
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99309
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes
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65 | 21 | $145.00 | $87.91 |
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99310
Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes
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41 | 29 | $217.00 | $125.76 |
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99308
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more
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15 | 14 | $109.00 | $60.73 |
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99497
Advance care planning, first 30 minutes
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14 | 14 | $127.00 | $67.52 |
Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Meloxicam | Meloxicam | 67 | 583 | $177.51 | — |
| Furosemide | Furosemide | 57 | 1,036 | $300.18 | — |
| Montelukast Sodium | Montelukast Sodium | 55 | 548 | $407.19 | — |
| Potassium Chloride | Potassium Chloride | 55 | 884 | $601.56 | — |
| Baclofen | Baclofen | 48 | 347 | $189.76 | — |
| Pantoprazole Sodium | Pantoprazole Sodium | 48 | 359 | $124.74 | — |
| Levothyroxine Sodium | Levothyroxine Sodium | 47 | 1,133 | $505.07 | — |
| Losartan Potassium | Losartan Potassium | 44 | 680 | $402.70 | — |
| Omeprazole | Omeprazole | 39 | 480 | $287.12 | — |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 35 | 268 | $521.31 | 11 |
| Xarelto | Rivaroxaban | 31 | 230 | $4,669.55 | — |
| Gabapentin | Gabapentin | 28 | 840 | $306.83 | — |
| Metformin Hcl | Metformin Hcl | 26 | 780 | $235.39 | — |
| Myrbetriq | Mirabegron | 22 | 324 | $5,313.62 | — |
| Amlodipine Besylate | Amlodipine Besylate | 20 | 600 | $101.86 | — |
| Atorvastatin Calcium | Atorvastatin Calcium | 19 | 306 | $136.77 | — |
| Tramadol Hcl | Tramadol Hcl | 15 | 167 | $98.45 | — |
| Lisinopril | Lisinopril | 13 | 390 | $88.01 | — |
| Basaglar Kwikpen U-100 | Insulin Glargine,hum.Rec.Anlog | 13 | 369 | $1,829.12 | — |
| Ertapenem | Ertapenem Sodium | 13 | 25 | $1,748.43 | — |
| Prednisone | Prednisone | 12 | 37 | $28.01 | — |
| Tamsulosin Hcl | Tamsulosin Hcl | 12 | 360 | $268.80 | — |
| Eliquis | Apixaban | 12 | 100 | $2,180.13 | — |
| Mupirocin | Mupirocin | 11 | 140 | $126.97 | — |
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 363L00000X
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - NURSE PRACTITIONER
I20190111002938
IN
6507183050
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Nurse Practitioner - Family
Nurse Practitioner - Primary Care
Advanced Registered Nurse Practitioner
Nurse Practitioner
Advanced Practice Nurse Prescriber
Nurse Practitioner
Advanced Practice Registered Nurse
Nurse Practitioner - Family
Family Nurse Practitioner
Physician Assistant
Physician Assistant (Certified)
Career & Practice History
NPI enumerated October 17, 2014.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.
NPI Administrative Meta
Other Nurse Practitioners in Chicago
- Bailey Jenkins
- Paula Karnick, NP
- Kristy Luke, NP
- Thomas Cottrell, APN-CNP
- Katherine Cartina, APRN
- Jessica Cherikos, CNP
Mailing Address
689 Olde Oak Dr
Bourbonnais, IL 609142422
Phone: 8156907601