Maureen C Duffy , RN WHNP
Nurse Practitioner • Palatine, IL
355 W Northwest Hwy
Palatine, IL 600672414
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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NPI assigned on October 20, 2005; this date does not establish years in practice.
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Published CMS data list 68 Original Medicare Part B services in 2021.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2021. Published rows only; this is not a quality measure.
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Published Part B service records, 2021:
- 99214 — Established patient outpatient office visit: 48 service units.
- Q0091 — Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory: 20 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2021. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2020 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2021). CPT notice
See the full table · Guide: How to read Medicare Part B data
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Published CMS data list 49 Medicare Part D prescriptions, including refills, in 2021.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2021. Published rows only; this is not a quality measure.
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Published Part D records, 2021:
- Estradiol — 27 prescription fills, including refills.
- Clotrimazole-Betamethasone (Clotrimazole/Betamethasone Dip) — 11 prescription fills, including refills.
- Levothyroxine Sodium — 11 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2021. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See the full table · Guide: How to read Medicare Part D prescriber data
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Medicare Part B services went from 142 in 2020 to 68 in 2021.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2021.
Practice Location & Contact Primary Location
355 W Northwest Hwy
Palatine, IL 600672414
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
53 people with Original Medicare in 2021
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2021.
Medicare-allowed amount
About $6,456 in 2021
The total amount Medicare approved for these services in 2021. 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, 2021.
Paid by Medicare
About $3,664 in 2021
The part of the Medicare-allowed amount that Medicare itself paid in 2021, 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, 2021.
30-day fills
106 standardized 30-day fills in 2021
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
$3,501 in 2021
The total cost of these prescriptions in 2021, 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, 2021.
Open Payments general payments, program year 2021
All general payments: $668.82 across 36 records.
By nature of payment
- Food and Beverage: $668.82 across 36 records.
Reporting-company totals (3 largest of 17)
- Agile Therapeutics, Inc.: $112.66 across 5 records.
- Avion Pharmaceuticals: $99.93 across 7 records.
- AbbVie Inc.: $58.40 across 3 records.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2021 (published June 30, 2026).
NPI first issued
2005
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, CMS release of October 2, 2026; 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, CMS release of October 2, 2026.
Compared with the same specialty in Palatine and Illinois
Billing and prescribing volume is not a quality rating.
Medicare Part B
Comparisons use 2024 data. The latest CMS data for Maureen Duffy are from 2021.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Maureen Duffy are from 2021.
9 active clinicians are listed under Nurse Practitioner with a practice address in Palatine, IL (4,989 in Illinois).
Addresses are self-reported to NPPES and may be out of date.
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 52% from 142 in 2020 to 68 in 2021.
- 2020: 142
- 2021: 68
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Medicare-allowed amount
Medicare-allowed amount decreased 29% from $9,138 in 2020 to $6,456 in 2021.
- 2020: $9,138
- 2021: $6,456
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Paid by Medicare
Paid by Medicare decreased 44% from $6,601 in 2020 to $3,664 in 2021.
- 2020: $6,601
- 2021: $3,664
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Medicare Part D prescriptions
Medicare Part D prescriptions went from 12 in 2017 to 49 in 2021.
- 2017: 12
- 2018: 16
- 2019: 16
- 2020: 80
- 2021: 49
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30-day fills
30-day fills went from 12 in 2017 to 106 in 2021.
- 2017: 12
- 2018: 16
- 2019: 35
- 2020: 171
- 2021: 106
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Part D drug cost
Part D drug cost went from $62 in 2017 to $3,501 in 2021.
- 2017: $62
- 2018: $614
- 2019: $2,568
- 2020: $6,754
- 2021: $3,501
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Industry payments (Open Payments)
CMS data for industry payments (Open Payments) are available for 2021 only.
Sources: CMS Medicare Physician & Other Practitioners (2021), CMS Medicare Part D Prescribers (2021), CMS Open Payments (2021), CMS Doctors and Clinicians, CMS release of October 2, 2026, 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 2021 (payments made January 1 – December 31, 2021): 36 records totaling $668.82.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Mylan Pharmaceuticals Inc. |
Food and Beverage
In-kind items and services
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Xulane | General | $30.62 |
| Mylan Pharmaceuticals Inc. |
Food and Beverage
In-kind items and services
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Xulane | General | $27.53 |
| Agile Therapeutics, Inc. |
Food and Beverage
In-kind items and services
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Twirla | General | $25.46 |
| Amgen Inc. |
Food and Beverage
In-kind items and services
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EVENITY | General | $24.71 |
| AbbVie Inc. |
Food and Beverage
In-kind items and services
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LO LOESTRIN FE | General | $24.49 |
| Abbott Laboratories |
Food and Beverage
In-kind items and services
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Axium Sheath Braided DRG | General | $23.98 |
| Agile Therapeutics, Inc. |
Food and Beverage
In-kind items and services
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Twirla | General | $23.82 |
| Agile Therapeutics, Inc. |
Food and Beverage
In-kind items and services
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Twirla | General | $23.30 |
| TherapeuticsMD, Inc. |
Food and Beverage
In-kind items and services
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ANNOVERA | General | $22.71 |
| Agile Therapeutics, Inc. |
Food and Beverage
In-kind items and services
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Twirla | General | $21.81 |
| Myovant Sciences Inc. |
Food and Beverage
In-kind items and services
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MYFEMBREE | General | $20.43 |
| Takeda Pharmaceuticals U.S.A., Inc. |
Food and Beverage
In-kind items and services
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MOTEGRITY | General | $19.62 |
| Biohaven Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
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NURTEC ODT | General | $19.13 |
| TherapeuticsMD, Inc. |
Food and Beverage
In-kind items and services
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ANNOVERA | General | $18.36 |
| Agile Therapeutics, Inc. |
Food and Beverage
In-kind items and services
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Twirla | General | $18.27 |
| Exeltis, USA Inc. |
Food and Beverage
In-kind items and services
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SLYND | General | $18.19 |
| AbbVie Inc. |
Food and Beverage
In-kind items and services
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ORIAHNN | General | $17.59 |
| MAYNE PHARMA INC. |
Food and Beverage
In-kind items and services
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— | General | $16.90 |
| Amgen Inc. |
Food and Beverage
In-kind items and services
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EVENITY | General | $16.87 |
| Exeltis, USA Inc. |
Food and Beverage
In-kind items and services
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SLYND | General | $16.61 |
| AbbVie Inc. |
Food and Beverage
In-kind items and services
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ORIAHNN | General | $16.32 |
| Organon LLC |
Food and Beverage
In-kind items and services
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NEXPLANON | General | $16.16 |
| CooperSurgical, Inc. |
Food and Beverage
In-kind items and services
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Paragard | General | $16.13 |
| Avion Pharmaceuticals |
Food and Beverage
In-kind items and services
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Balcoltra | General | $16.07 |
| IBSA Pharma Inc. |
Food and Beverage
Cash or cash equivalent
|
Tirosint | General | $15.94 |
(top 25 shown)
Source: CMS Open Payments, program year 2021, 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 2019–2020 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, 2020–2021; 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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99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
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48 | 47 | $207.00 | $117.98 |
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Q0091
Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory
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20 | 20 | $103.80 | $39.64 |
Source: CMS Part B by Provider and Service, 2021; 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 2021.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Estradiol | Estradiol | 27 | 1,971 | $3,056.99 | — |
| Clotrimazole-Betamethasone | Clotrimazole/Betamethasone Dip | 11 | 93 | $176.25 | — |
| Levothyroxine Sodium | Levothyroxine Sodium | 11 | 870 | $267.36 | — |
Source: CMS Part D by Provider and Drug, 2021; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2021-06-04NUCC 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.
Additional State Medicaid & Healthcare Payer Identifiers
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Obstetrics & Gynecology
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 355 W NORTHWEST HWY, PALATINE, IL 600672414 (Tel: 8472214700)
Registered at 355 W NORTHWEST HWY, PALATINE, IL 600672414 (Tel: 8472214700)
Nurse Practitioner (license number reported to NPPES: IL 209001555)
NPI status registered as active in NPPES database
Registered at 121 S WILKE RD, SUITE 606, ARLINGTON HTS, IL 600051533 (Tel: 8473926250)
Registered at 121 S WILKE RD, SUITE 606, ARLINGTON HTS, IL 600051533 (Tel: 8473926250)
Recorded as MAUREEN DUFFY, RN WHNP
Nurse Practitioner
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Nurse Practitioners in Palatine
Healthcare providers in PalatineMailing Address
355 W Northwest Hwy
Palatine, IL 600672414
Phone: 8472214700