Tamara L. Leahy , NP
Nurse Practitioner β’ Marshfield, WI
1000 N Oak Ave
Marshfield, WI 544495703
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 10, 2011; this date does not establish years in practice.
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Published CMS data list 46 Medicare Part D prescriptions, including refills, in 2016.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2016. Published rows only; this is not a quality measure.
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Published Part D records, 2016:
- Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) β 20 prescription fills, including refills.
- Baclofen β 15 prescription fills, including refills.
- Oxycodone Hcl β 11 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2016. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See the full table Β· Guide: How to read Medicare Part D prescriber data
Practice Location & Contact Primary Location
1000 N Oak Ave
Marshfield, WI 544495703
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.
30-day fills
46 standardized 30-day fills in 2016
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
$1,031 in 2016
The total cost of these prescriptions in 2016, 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 β by Provider and Drug, 2016.
Industry payments (Open Payments)
No Open Payments records are listed for this clinician for 2021β2025.
NPI first issued
2011
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, βDoes your provider accept Medicare as full payment?β
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.
Compared with the same specialty in Marshfield and Wisconsin
Billing and prescribing volume is not a quality rating.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Tamara Leahy are from 2016.
55 active clinicians are listed under Nurse Practitioner with a practice address in Marshfield, WI (3,995 in Wisconsin).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Marshfield
16.4% of these 55 clinicians have the CMS telehealth indicator.
63.6% of these 55 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 D prescriptions
CMS data for Part D prescriptions are available for 2016 only.
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30-day fills
CMS data for 30-day fills are available for 2016 only.
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Part D drug cost
CMS data for Part D drug cost are available for 2016 only.
Sources: CMS Medicare Part D Prescribers (2016), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo Β· Report an error.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2016.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 20 | 523 | $533.53 | 18 |
| Baclofen | Baclofen | 15 | 405 | $135.07 | 12 |
| Oxycodone Hcl | Oxycodone Hcl | 11 | 298 | $362.08 | β |
Source: CMS Part D by Provider and Drug, 2016; 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.
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.
Internal Medicine
Doctor of Medicine (M.D.)
Internal Medicine - Interventional Cardiology
Doctor of Medicine (M.D.)
Dermatology
Doctor of Medicine (M.D.), Doctor of Pharmacy (Pharm.D.)
Physical Therapist
Doctor of Physical Therapy
Dermatology
Doctor of Medicine (M.D.)
Student in an Organized Health Care Education/Training Program
Career & Practice History
NPI enumerated October 10, 2011.
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 Marshfield
- Megan Johnson, NP
- Jennifer Clements, NP
- Robyn Smith, NP
- Kelly Noreen, NP
- Dr. Karalyn Adam, DNP, RN
- Jolene Schiller, NP
Mailing Address
1000 N Oak Ave
Marshfield, WI 544495703
Phone: 8007828581