Julie Vanderwerff , PA
Physician Assistant โข Madison, WI
675 W Washington Ave
Madison, WI 537032637
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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Julie Vanderwerff is listed in NPPES under Physician Assistant.
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NPI assigned on July 19, 2006; this date does not establish years in practice.
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Published CMS data list 867 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 36415 โ Insertion of needle into vein for collection of blood sample: 162 service units.
- 99213 โ Established patient outpatient office visit: 114 service units.
- 80061 โ Blood test, lipids (cholesterol and triglycerides): 69 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPTยฎ 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 21 records in the table ยท Guide: How to read Medicare Part B data
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Published CMS data list 2,024 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Atorvastatin Calcium โ 125 prescription fills, including refills.
- Lisinopril โ 101 prescription fills, including refills.
- Rosuvastatin Calcium โ 94 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 65 records in the table ยท Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 85% of clinicians listed under Physician Assistant in Madison, WI (2024, 217 clinicians with data). Median for this group: 209. Middle half: 73 to 407.
More Medicare Part B services than 90% of clinicians listed under Physician Assistant in Wisconsin (2024, 1,918 clinicians with data). Median for this group: 151. Middle half: 65 to 328.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 621 in 2020 to 867 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2020โ2024.
Practice Location & Contact Primary Location
675 W Washington Ave
Madison, WI 537032637
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
CMS Doctors and Clinicians lists 1 group name: Group Health Cooperative Of South Central Wisconsin. See the list
Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026
1996
What Public CMS Data Show
Physician Assistant: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
148 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 โ by Provider, 2024.
Medicare-allowed amount
About $37,910 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 โ by Provider and Service, 2024.
Paid by Medicare
About $33,133 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 โ by Provider and Service, 2024.
30-day fills
3,692 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
$177,204 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 โ by Provider and Drug, 2024.
Industry payments (Open Payments)
No Open Payments records are listed for this clinician for 2021โ2025.
Years since graduation
30 years (graduated 1996)
CMS Doctors and Clinicians data list 1996 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, CMS release of October 2, 2026.
NPI first issued
2006
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, CMS release of October 2, 2026; Medicare.gov, โDoes your provider accept Medicare as full payment?โ
Telehealth (some services)
Recent Medicare claims show this clinician provided some services by telehealth, such as a video or phone visit.
You may be able to have some visits without going to the office. Ask which visits can be done by telehealth.
What this does not show: Telehealth (some services)
It does not mean all services are offered by telehealth, or that telehealth is covered by your plan.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians, CMS release of October 2, 2026.
Enrolled in Medicare (PECOS)
Julie Vanderwerff 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 Julie Vanderwerff 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 Madison and Wisconsin
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 85% of clinicians listed under Physician Assistant in Madison, WI (2024, 217 clinicians with data). Median for this group: 209. Middle half: 73 to 407.
More Medicare Part B services than 90% of clinicians listed under Physician Assistant in Wisconsin (2024, 1,918 clinicians with data). Median for this group: 151. Middle half: 65 to 328.
Medicare-allowed amount
A higher Medicare-allowed amount than 85% of clinicians listed under Physician Assistant in Madison, WI (2024, 217 clinicians with data). Median for this group: $13,537. Middle half: $6,026 to $22,762.
A higher Medicare-allowed amount than 90% of clinicians listed under Physician Assistant in Wisconsin (2024, 1,918 clinicians with data). Median for this group: $11,613. Middle half: $5,395 to $21,454.
Paid by Medicare
A higher Medicare payment amount than 90% of clinicians listed under Physician Assistant in Madison, WI (2024, 217 clinicians with data). Median for this group: $9,864. Middle half: $4,514 to $16,414.
A higher Medicare payment amount than 90% of clinicians listed under Physician Assistant in Wisconsin (2024, 1,918 clinicians with data). Median for this group: $8,471. Middle half: $3,920 to $15,797.
Medicare Part D prescriptions
More Part D prescriptions than 95% of clinicians listed under Physician Assistant in Madison, WI (2024, 217 clinicians with data). Median for this group: 121. Middle half: 44 to 351.
More Part D prescriptions than 85% of clinicians listed under Physician Assistant in Wisconsin (2024, 2,087 clinicians with data). Median for this group: 194. Middle half: 67 to 678.
Part D drug cost
A higher Part D drug cost than 90% of clinicians listed under Physician Assistant in Madison, WI (2024, 217 clinicians with data). Median for this group: $1,465. Middle half: $324 to $19,150.
A higher Part D drug cost than 80% of clinicians listed under Physician Assistant in Wisconsin (2024, 2,087 clinicians with data). Median for this group: $2,424. Middle half: $547 to $63,808.
396 active clinicians are listed under Physician Assistant with a practice address in Madison, WI (3,519 in Wisconsin).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Madison
18.7% of these 396 clinicians have the CMS telehealth indicator.
66.4% of these 396 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 40% from 621 in 2020 to 867 in 2024.
- 2020: 621
- 2021: 620
- 2022: 617
- 2023: 1,037
- 2024: 867
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Medicare-allowed amount
Medicare-allowed amount increased 161% from $14,528 in 2020 to $37,910 in 2024.
- 2020: $14,528
- 2021: $19,190
- 2022: $18,024
- 2023: $43,480
- 2024: $37,910
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Paid by Medicare
Paid by Medicare increased 226% from $10,157 in 2020 to $33,133 in 2024.
- 2020: $10,157
- 2021: $13,845
- 2022: $13,640
- 2023: $34,878
- 2024: $33,133
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Medicare Part D prescriptions
Medicare Part D prescriptions varied from year to year: 1,890 in 2020 and 2,024 in 2024.
- 2020: 1,890
- 2021: 1,663
- 2022: 1,575
- 2023: 2,129
- 2024: 2,024
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30-day fills
30-day fills varied from year to year: 3,453 in 2020 and 3,692 in 2024.
- 2020: 3,453
- 2021: 3,117
- 2022: 2,900
- 2023: 3,833
- 2024: 3,692
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Part D drug cost
Part D drug cost increased 85% from $96,043 in 2020 to $177,204 in 2024.
- 2020: $96,043
- 2021: $91,789
- 2022: $116,090
- 2023: $198,147
- 2024: $177,204
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), 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 ยท Report an error.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016โ2023 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 โ by Provider and Service data, 2017โ2024; 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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36415
Insertion of needle into vein for collection of blood sample
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162 | 95 | $38.00 | $8.65 |
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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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114 | 83 | $233.00 | $71.94 |
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80061
Blood test, lipids (cholesterol and triglycerides)
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69 | 66 | $196.00 | $13.12 |
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80053
Blood test, comprehensive group of blood chemicals
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63 | 61 | $189.00 | $10.35 |
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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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59 | 44 | $331.00 | $99.88 |
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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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40 | 37 | $104.00 | $7.61 |
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83036
Hemoglobin a1c level
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39 | 28 | $104.00 | $9.52 |
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84443
Blood test, thyroid stimulating hormone (tsh)
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39 | 35 | $173.00 | $16.46 |
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G0439
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
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35 | 35 | $282.00 | $103.36 |
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G0008
Administration of influenza virus vaccine
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31 | 31 | $23.00 | $22.54 |
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90480
Admn sarscov2 vacc 1 dose
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29 | 27 | $83.00 | $40.56 |
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91322
Sarscov2 vac 50 mcg/0.5ml im
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29 | 27 | $230.00 | $155.76 |
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99212
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more
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29 | 28 | $157.00 | $44.95 |
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90653
Influenza vaccine, inactivated
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28 | 28 | $98.00 | $81.82 |
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80048
Blood test, basic group of blood chemicals (calcium, total)
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18 | 14 | $136.00 | $8.29 |
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90677
Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use
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17 | 17 | $599.00 | $291.00 |
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G0009
Administration of pneumococcal vaccine
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17 | 17 | $23.00 | $22.54 |
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82607
Cyanocobalamin (vitamin b-12) level
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13 | 13 | $206.00 | $14.78 |
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82043
Urine microalbumin (protein) level
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12 | 12 | $138.00 | $5.66 |
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82570
Creatinine level to test for kidney function or muscle injury
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12 | 12 | $78.00 | $5.08 |
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93000
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report
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12 | 12 | $255.00 | $11.27 |
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 |
|---|---|---|---|---|---|
| Atorvastatin Calcium | Atorvastatin Calcium | 125 | 9,604 | $1,387.02 | 36 |
| Lisinopril | Lisinopril | 101 | 7,268 | $881.24 | 26 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 94 | 6,260 | $701.62 | 23 |
| Omeprazole | Omeprazole | 82 | 4,831 | $888.66 | 19 |
| Eliquis | Apixaban | 72 | 2,413 | $47,587.55 | โ |
| Levothyroxine Sodium | Levothyroxine Sodium | 69 | 5,114 | $717.99 | 20 |
| Amlodipine Besylate | Amlodipine Besylate | 57 | 4,590 | $374.78 | 21 |
| Gabapentin | Gabapentin | 52 | 2,416 | $534.10 | 12 |
| Lorazepam | Lorazepam | 51 | 1,200 | $328.93 | โ |
| Fluoxetine Hcl | Fluoxetine Hcl | 48 | 3,633 | $371.37 | 13 |
| Alprazolam | Alprazolam | 47 | 929 | $89.04 | 11 |
| Hydrochlorothiazide | Hydrochlorothiazide | 45 | 3,612 | $178.31 | 17 |
| Metoprolol Succinate | Metoprolol Succinate | 45 | 2,670 | $519.93 | 13 |
| Simvastatin | Simvastatin | 44 | 3,830 | $493.64 | 11 |
| Furosemide | Furosemide | 42 | 1,949 | $255.66 | 11 |
| Famotidine | Famotidine | 41 | 1,926 | $645.39 | โ |
| Oxycodone Hcl | Oxycodone Hcl | 40 | 824 | $898.41 | 11 |
| Bupropion Xl | Bupropion Hcl | 38 | 1,765 | $722.70 | โ |
| Methylphenidate Hcl | Methylphenidate Hcl | 38 | 1,064 | $709.80 | โ |
| Duloxetine Hcl | Duloxetine Hcl | 36 | 1,856 | $685.36 | โ |
| Trulicity | Dulaglutide | 36 | 1,132 | $38,284.23 | โ |
| Promethazine Hcl | Promethazine Hcl | 32 | 128 | $215.13 | โ |
| Metoprolol Tartrate | Metoprolol Tartrate | 29 | 1,616 | $190.73 | โ |
| Zolpidem Tartrate | Zolpidem Tartrate | 29 | 1,150 | $125.27 | โ |
| Sertraline Hcl | Sertraline Hcl | 28 | 1,783 | $173.85 | โ |
(top 25 shown)
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: 363A00000X
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - PHYSICIAN ASSISTANT
I20110104001285
WI
4981893161
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, CMS release of October 2, 2026
Group Health Cooperative Of South Central Wisconsin
3051 Cahill Main, Fitchburg, WI 537117109
Phone: 6086617200
Group Health Cooperative Of South Central Wisconsin
5249 E Terrace Dr, Madison, WI 537188339
Phone: 6082229777
Group Health Cooperative Of South Central Wisconsin
675 W Washington Ave, Madison, WI 537032637
Phone: 6082579700
Group Health Cooperative Of South Central Wisconsin
8202 Excelsior Dr, Madison, WI 537171906
Phone: 6088311766
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 Medicine (M.D.)
Pediatrics
Doctor of Medicine (M.D.)
Internal Medicine
Doctor of Medicine (M.D.)
Physician Assistant - Medical
Physician Assistant (Certified)
Physician Assistant
Physician Assistant
Physician Assistant - Medical
Career & Practice History
NPI enumerated July 19, 2006.
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 November 2026.
NPI Administrative Meta
Other Physician Assistants in Madison
- Craig Hinkle, PA-C
- John Hayes, PA
- Kimberly Buchta, PA
- Sandra Miller, PA
- Shawn Drulia, PA-C
- Caitlin Verstegen, PA-C
Mailing Address
1265 John Q Hammons Dr
Madison, WI 537171941
Phone: 6082514156