Dr. David W Duppler , MD
Surgery • Appleton, WI
1818 N Meade St, Ste 240-West
Appleton, WI 549113454
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 August 15, 2005; this date does not establish years in practice.
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Published CMS data list 211 Original Medicare Part B services in 2019.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2019. Published rows only; this is not a quality measure.
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Published Part B service records, 2019:
- 45385 — Removal of polyps or growths of large bowel using an endoscope with mechanical snare: 69 service units.
- 43239 — Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope: 42 service units.
- 99231 — Subsequent hospital care with straightforward or low level of medical decision making, per day: 39 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2019. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2018 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2019). 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 283 Medicare Part D prescriptions, including refills, in 2019.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2019. Published rows only; this is not a quality measure.
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Published Part D records, 2019:
- Omeprazole — 99 prescription fills, including refills.
- Ranitidine Hcl — 57 prescription fills, including refills.
- Pantoprazole Sodium — 47 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2019. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 7 records in the table · Guide: How to read Medicare Part D prescriber data
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Medicare Part B services went from 409 in 2017 to 211 in 2019.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2017–2019.
Practice Location & Contact Primary Location
1818 N Meade St
Ste 240-West
Appleton, WI 549113454
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
Surgery: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare-allowed amount
About $27,524 in 2019
The total amount Medicare approved for these services in 2019. 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, 2019.
Paid by Medicare
About $21,793 in 2019
The part of the Medicare-allowed amount that Medicare itself paid in 2019, 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, 2019.
30-day fills
408 standardized 30-day fills in 2019
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
$11,456 in 2019
The total cost of these prescriptions in 2019, 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, 2019.
Open Payments general payments, program year 2019
All general payments: $135.63 across 3 records.
By nature of payment
- Food and Beverage: $135.63 across 3 records.
Reporting-company totals
- Intuitive Surgical, Inc.: $121.85 across 2 records.
- DAVOL INC.: $13.78 across 1 record.
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 2019 (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; 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.
Compared with the same specialty in Appleton and Wisconsin
Billing and prescribing volume is not a quality rating.
Medicare Part B
Comparisons use 2024 data. The latest CMS data for Dr. Duppler are from 2019.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Dr. Duppler are from 2019.
19 active clinicians are listed under Surgery with a practice address in Appleton, WI (727 in Wisconsin).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Appleton
0% of these 19 clinicians have the CMS telehealth indicator.
78.9% of these 19 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 48% from 409 in 2017 to 211 in 2019.
- 2017: 409
- 2018: 395
- 2019: 211
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Medicare-allowed amount
Medicare-allowed amount decreased 52% from $57,161 in 2017 to $27,524 in 2019.
- 2017: $57,161
- 2018: $51,002
- 2019: $27,524
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Paid by Medicare
Paid by Medicare decreased 53% from $45,923 in 2017 to $21,793 in 2019.
- 2017: $45,923
- 2018: $41,535
- 2019: $21,793
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 15% from 334 in 2015 to 283 in 2019.
- 2015: 334
- 2016: 358
- 2017: 467
- 2018: 330
- 2019: 283
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30-day fills
30-day fills varied from year to year: 423 in 2015 and 408 in 2019.
- 2015: 423
- 2016: 454
- 2017: 596
- 2018: 418
- 2019: 408
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Part D drug cost
Part D drug cost decreased 31% from $16,721 in 2015 to $11,456 in 2019.
- 2015: $16,721
- 2016: $26,225
- 2017: $23,113
- 2018: $13,562
- 2019: $11,456
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Industry payments (Open Payments)
CMS data for industry payments (Open Payments) are available for 2019 only.
Sources: CMS Medicare Physician & Other Practitioners (2019), CMS Medicare Part D Prescribers (2019), CMS Open Payments (2019), 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 2019 (payments made January 1 – December 31, 2019): fewer than 11 records totaling $135.63.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Intuitive Surgical, Inc. |
Food and Beverage
In-kind items and services
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Da Vinci Surgical System | General | $89.42 |
| Intuitive Surgical, Inc. |
Food and Beverage
In-kind items and services
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Da Vinci Surgical System | General | $32.43 |
| DAVOL INC. |
Food and Beverage
In-kind items and services
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PHASIX | General | $13.78 |
Source: CMS Open Payments, program year 2019, 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 2016–2018 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, 2017–2019; 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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45385
Removal of polyps or growths of large bowel using an endoscope with mechanical snare
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69 | 66 | $3015.00 | $229.12 |
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43239
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope
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42 | 40 | $1879.76 | $97.13 |
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99231
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes
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39 | 16 | $175.00 | $37.53 |
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43248
Insertion of guide wire with dilation of esophagus using a flexible endoscope
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21 | 21 | $1750.00 | $135.24 |
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99221
Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes
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21 | 21 | $384.29 | $94.38 |
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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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19 | 17 | $199.47 | $71.03 |
Source: CMS Part B by Provider and Service, 2019; 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 2019.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Omeprazole | Omeprazole | 99 | 5,636 | $1,912.21 | 45 |
| Ranitidine Hcl | Ranitidine Hcl | 57 | 2,087 | $320.31 | 18 |
| Pantoprazole Sodium | Pantoprazole Sodium | 47 | 1,809 | $603.96 | 12 |
| Dicyclomine Hcl | Dicyclomine Hcl | 29 | 1,027 | $591.82 | — |
| Erythromycin | Erythromycin Base | 20 | 513 | $7,657.74 | — |
| Nortriptyline Hcl | Nortriptyline Hcl | 16 | 540 | $269.39 | — |
| Oxycodone Hcl | Oxycodone Hcl | 15 | 47 | $100.51 | 14 |
Source: CMS Part D by Provider and Drug, 2019; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 208600000X
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
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.
Nurse Practitioner
Nurse Practitioner
Surgery - Vascular Surgery
Doctor of Medicine (M.D.)
Nurse Practitioner - Adult Health
Surgery
Doctor of Medicine (M.D.)
Surgery
Doctor of Medicine (M.D.)
Nurse Practitioner - Family
Advanced Practice Nurse Prescriber
Career & Practice History
NPI enumerated August 15, 2005.
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 Surgery Specialists in Appleton
- Dr. Honnie Bermas, MD
- Dr. Ping Lady, MD
- Dr. Maykong Leepalao, MD
- Dr. Tina Sauerhammer, MD
- Dr. Beth Krieger, MD
- Dr. Amanda Hein, MD
Mailing Address
1818 N Meade St, Ste 240-West
Appleton, WI 549113454
Phone: 9207318289