Jennifer L. Sills , ARNP
Nurse Practitioner • Ames, IA
Isu Thielen Student Health Center, 2647 Union Drive
Ames, IA 500112029
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 742 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:
- 99213 — Established patient outpatient office visit: 202 service units.
- 36415 — Insertion of needle into vein for collection of blood sample: 80 service units.
- 81001 — Manual urinalysis test with examination using microscope, automated: 66 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 13 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 178 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:
- Cephalexin — 62 prescription fills, including refills.
- Doxycycline Hyclate — 40 prescription fills, including refills.
- Nitrofurantoin Mono-Macro (Nitrofurantoin Monohyd/M-Cryst) — 25 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 6 records in the table · Guide: How to read Medicare Part D prescriber data
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Close to the middle for Medicare Part B services among clinicians listed under Nurse Practitioner in Ames, IA (2024, 22 clinicians with data). Median for this group: 786. Middle half: 405 to 1,730.
More Medicare Part B services than 70% of clinicians listed under Nurse Practitioner in Iowa (2024, 665 clinicians with data). Median for this group: 340. Middle half: 121 to 815.
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 177 in 2020 to 742 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
Isu Thielen Student Health Center
2647 Union Drive
Ames, IA 500112029
NPPES lists 1 additional practice-address record in Ames, IA. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
CMS Doctors and Clinicians lists 1 group name: Mcfarland Clinic Pc. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
1999
What Public CMS Data Show
Nurse Practitioner: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
259 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 $33,099 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 $25,411 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
178 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
$2,380 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)
No Open Payments records are listed for this clinician for 2021–2025.
Years since graduation
27 years (graduated 1999)
CMS Doctors and Clinicians data list 1999 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
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.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
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)
Jennifer Sills 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 Jennifer Sills 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 Ames and Iowa
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Close to the middle for clinicians listed under Nurse Practitioner in Ames, IA (2024, 22 clinicians with data). Median for this group: 786. Middle half: 405 to 1,730.
More Medicare Part B services than 70% of clinicians listed under Nurse Practitioner in Iowa (2024, 665 clinicians with data). Median for this group: 340. Middle half: 121 to 815.
Medicare-allowed amount
Close to the middle for clinicians listed under Nurse Practitioner in Ames, IA (2024, 22 clinicians with data). Median for this group: $33,113. Middle half: $23,849 to $74,441.
A higher Medicare-allowed amount than 60% of clinicians listed under Nurse Practitioner in Iowa (2024, 665 clinicians with data). Median for this group: $22,618. Middle half: $9,384 to $48,238.
Paid by Medicare
Close to the middle for clinicians listed under Nurse Practitioner in Ames, IA (2024, 22 clinicians with data). Median for this group: $25,041. Middle half: $18,347 to $55,458.
A higher Medicare payment amount than 65% of clinicians listed under Nurse Practitioner in Iowa (2024, 665 clinicians with data). Median for this group: $16,811. Middle half: $6,614 to $35,804.
Medicare Part D prescriptions
Fewer Part D prescriptions than 70% of clinicians listed under Nurse Practitioner in Ames, IA (2024, 24 clinicians with data). Median for this group: 804. Middle half: 170 to 1,920.
Fewer Part D prescriptions than 65% of clinicians listed under Nurse Practitioner in Iowa (2024, 751 clinicians with data). Median for this group: 512. Middle half: 126 to 1,961.
Part D drug cost
A lower Part D drug cost than 70% of clinicians listed under Nurse Practitioner in Ames, IA (2024, 24 clinicians with data). Median for this group: $36,079. Middle half: $2,271 to $217,880.
A lower Part D drug cost than 65% of clinicians listed under Nurse Practitioner in Iowa (2024, 751 clinicians with data). Median for this group: $25,169. Middle half: $1,319 to $227,287.
29 active clinicians are listed under Nurse Practitioner with a practice address in Ames, IA (1,303 in Iowa).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Ames
13.8% of these 29 clinicians have the CMS telehealth indicator.
82.8% of these 29 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 increased 319% from 177 in 2020 to 742 in 2024.
- 2020: 177
- 2021: 214
- 2022: 459
- 2023: 468
- 2024: 742
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Medicare-allowed amount
Medicare-allowed amount increased 368% from $7,078 in 2020 to $33,099 in 2024.
- 2020: $7,078
- 2021: $8,652
- 2022: $18,488
- 2023: $21,954
- 2024: $33,099
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Paid by Medicare
Paid by Medicare increased 420% from $4,882 in 2020 to $25,411 in 2024.
- 2020: $4,882
- 2021: $6,304
- 2022: $15,102
- 2023: $17,768
- 2024: $25,411
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Medicare Part D prescriptions
Medicare Part D prescriptions went from 18 in 2020 to 178 in 2024.
- 2020: 18
- 2021: 19
- 2022: 99
- 2023: 81
- 2024: 178
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30-day fills
30-day fills went from 18 in 2020 to 178 in 2024.
- 2020: 18
- 2021: 19
- 2022: 99
- 2023: 81
- 2024: 178
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Part D drug cost
Part D drug cost went from $122 in 2020 to $2,380 in 2024.
- 2020: $122
- 2021: $90
- 2022: $563
- 2023: $685
- 2024: $2,380
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
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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99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
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202 | 186 | $136.68 | $71.04 |
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36415
Insertion of needle into vein for collection of blood sample
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80 | 76 | $10.00 | $8.65 |
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81001
Manual urinalysis test with examination using microscope, automated
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66 | 58 | $12.00 | $3.11 |
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87086
Bacterial colony count, urine
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63 | 56 | $31.00 | $7.91 |
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85025
Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count
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62 | 60 | $27.02 | $7.61 |
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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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58 | 57 | $202.59 | $100.73 |
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0241U
Respiratory infectious agent detection by rna for severe acute respiratory syndrome coronavirus 2 (covid 19), influenza a, influenza b, and respiratory syncytial virus, upper respiratory specimen, each reported as detected or not detected
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53 | 52 | $195.32 | $139.78 |
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80047
Blood test, basic group of blood chemicals (calcium, ionized)
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40 | 38 | $48.00 | $13.46 |
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87077
Bacterial culture for aerobic isolates
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40 | 36 | $31.00 | $7.92 |
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87186
Evaluation of antimicrobial drug (antibiotic, antifungal, antiviral), microdilution or agar dilution
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40 | 36 | $33.00 | $8.48 |
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81003
Automated urinalysis test
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16 | 16 | $9.00 | $2.20 |
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99203
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more
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11 | 11 | $182.36 | $87.01 |
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99204
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
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11 | 11 | $281.00 | $131.24 |
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 |
|---|---|---|---|---|---|
| Cephalexin | Cephalexin | 62 | 428 | $291.09 | 61 |
| Doxycycline Hyclate | Doxycycline Hyclate | 40 | 364 | $350.95 | 40 |
| Nitrofurantoin Mono-Macro | Nitrofurantoin Monohyd/M-Cryst | 25 | 156 | $267.74 | 25 |
| Prednisone | Prednisone | 23 | 112 | $22.64 | 23 |
| Paxlovid | Nirmatrelvir/Ritonavir | 15 | 75 | $1,429.02 | 15 |
| Amoxicillin | Amoxicillin | 13 | 98 | $18.72 | 13 |
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
Self-certified to NPPES: 2020-11-19NUCC 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.
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
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - NURSE PRACTITIONER
I20071107000355
IA
1850488875
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File
Mcfarland Clinic Pc
640 Lincoln Way, Ames, IA 500106911
Phone: 5159564051
Mcfarland Clinic Pc
3500 University Blvd, Ames, IA 500103014
Phone: 5152393040
Mcfarland Clinic Pc
3800 Lincoln Way, Ames, IA 500143402
Phone: 5159564100
Mcfarland Clinic Pc
1215 Duff Ave, Ames, IA 500105400
Phone: 5152394400
Secondary Practice Locations
1215 Duff Ave, Mcfarland Clinic, Pc
Ames, IA 500103014
Phone: 5152394475
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Family Medicine
Doctor of Osteopathic Medicine (D.O.)
Physician Assistant
Physician Assistant (Certified)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Additional practice office at 1215 Duff Ave, McFarland Clinic, PC, Ames, IA 500103014
Nurse Practitioner (license number reported to NPPES: IA J094265)
Registered at ISU THIELEN STUDENT HEALTH CENTER, 2647 UNION DRIVE, AMES, IA 500112029 (Tel: 5152945801)
NPI status registered as active in NPPES database
Registered at 1215 DUFF AVE, MCFARLAND CLINIC, PC, AMES, IA 500103014 (Tel: 5152394475)
Registered at PO BOX 3014, 1215 DUFF AVE MCFARLAND CLINIC, PC, AMES, IA 500103014 (Tel: 5152394400)
Recorded as JENNIFER SILLS, ARNP
Nurse Practitioner (license number reported to NPPES: IA J094265)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Nurse Practitioners in Ames
- Maura Mendus, APRN, CNP
- Stephanie Kalvig, ARNP
- Dr. Kaysha Halbur, DNP, ARNP, FNP-C
- Analissa Kautza, ARNP
- Laura Jones, ARNP
- Kelli Holland, ARNP
Mailing Address
Po Box 3014, 1215 Duff Ave Mcfarland Clinic, Pc
Ames, IA 500103014
Phone: 5152394400