Dr. John Lee Weippert , DO
Internal Medicine • Warren, OH
1622 E Market St
Warren, OH 444836613
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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Dr. John Weippert is listed in NPPES under Internal Medicine.
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NPI assigned on May 18, 2010; this date does not establish years in practice.
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Published CMS data list 611 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: 162 service units.
- 43239 — Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope: 145 service units.
- 45385 — Removal of polyps or growths of large bowel using an endoscope with mechanical snare: 79 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 12 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 2,883 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:
- Pantoprazole Sodium — 873 prescription fills, including refills.
- Famotidine — 532 prescription fills, including refills.
- Omeprazole — 238 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 35 records in the table · Guide: How to read Medicare Part D prescriber data
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Fewer Medicare Part B services than 65% of clinicians listed under Internal Medicine in Warren, OH (2024, 24 clinicians with data). Median for this group: 753. Middle half: 379 to 1,715.
Close to the middle for Medicare Part B services among clinicians listed under Internal Medicine in Ohio (2024, 3,145 clinicians with data). Median for this group: 574. Middle half: 262 to 1,043.
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 920 in 2020 to 611 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
1622 E Market St
Warren, OH 444836613
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: The Gastroenterology Clinic And Endoscopy Center Inc. 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
Ohio University, College Of Osteopathic Medicine
2008
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
325 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 $70,353 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 $52,252 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
3,940 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
$861,268 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.
Open Payments general payments, program year 2025
All general payments: $2,631.66 across 162 records.
By nature of payment
- Food and Beverage: $2,621.18 across 161 records.
- Education: $10.48 across 1 record.
Reporting-company totals (3 largest of 20)
- ABBVIE INC.: $1,138.47 across 77 records.
- Takeda Pharmaceuticals U.S.A., Inc.: $402.40 across 22 records.
- Janssen Pharmaceuticals, Inc: $219.64 across 14 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 2025 (published June 30, 2026).
Years since graduation
18 years (graduated 2008)
CMS Doctors and Clinicians data list 2008 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
2010
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)
Dr. Weippert 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 Dr. Weippert 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 Warren and Ohio
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Fewer Medicare Part B services than 65% of clinicians listed under Internal Medicine in Warren, OH (2024, 24 clinicians with data). Median for this group: 753. Middle half: 379 to 1,715.
Close to the middle for clinicians listed under Internal Medicine in Ohio (2024, 3,145 clinicians with data). Median for this group: 574. Middle half: 262 to 1,043.
Medicare-allowed amount
Close to the middle for clinicians listed under Internal Medicine in Warren, OH (2024, 24 clinicians with data). Median for this group: $69,050. Middle half: $39,720 to $125,436.
A higher Medicare-allowed amount than 65% of clinicians listed under Internal Medicine in Ohio (2024, 3,145 clinicians with data). Median for this group: $50,782. Middle half: $23,884 to $83,638.
Paid by Medicare
Close to the middle for clinicians listed under Internal Medicine in Warren, OH (2024, 24 clinicians with data). Median for this group: $50,823. Middle half: $29,430 to $88,653.
A higher Medicare payment amount than 65% of clinicians listed under Internal Medicine in Ohio (2024, 3,145 clinicians with data). Median for this group: $37,953. Middle half: $17,413 to $63,670.
Medicare Part D prescriptions
Close to the middle for clinicians listed under Internal Medicine in Warren, OH (2024, 26 clinicians with data). Median for this group: 3,387. Middle half: 143 to 6,080.
More Part D prescriptions than 60% of clinicians listed under Internal Medicine in Ohio (2024, 3,362 clinicians with data). Median for this group: 883. Middle half: 119 to 5,445.
Part D drug cost
A higher Part D drug cost than 75% of clinicians listed under Internal Medicine in Warren, OH (2024, 26 clinicians with data). Median for this group: $336,084. Middle half: $3,691 to $770,701.
A higher Part D drug cost than 85% of clinicians listed under Internal Medicine in Ohio (2024, 3,362 clinicians with data). Median for this group: $79,160. Middle half: $4,027 to $440,452.
39 active clinicians are listed under Internal Medicine with a practice address in Warren, OH (5,283 in Ohio).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Warren
15.4% of these 39 clinicians have the CMS telehealth indicator.
74.4% of these 39 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 34% from 920 in 2020 to 611 in 2024.
- 2020: 920
- 2021: 932
- 2022: 733
- 2023: 668
- 2024: 611
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Medicare-allowed amount
Medicare-allowed amount decreased 30% from $99,816 in 2020 to $70,353 in 2024.
- 2020: $99,816
- 2021: $111,126
- 2022: $87,190
- 2023: $81,471
- 2024: $70,353
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Paid by Medicare
Paid by Medicare decreased 29% from $74,114 in 2020 to $52,252 in 2024.
- 2020: $74,114
- 2021: $84,988
- 2022: $65,238
- 2023: $62,034
- 2024: $52,252
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 24% from 2,323 in 2020 to 2,883 in 2024.
- 2020: 2,323
- 2021: 2,907
- 2022: 2,741
- 2023: 2,775
- 2024: 2,883
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30-day fills
30-day fills increased 32% from 2,976 in 2020 to 3,940 in 2024.
- 2020: 2,976
- 2021: 3,936
- 2022: 3,788
- 2023: 3,731
- 2024: 3,940
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Part D drug cost
Part D drug cost increased 125% from $382,093 in 2020 to $861,268 in 2024.
- 2020: $382,093
- 2021: $1,124,589
- 2022: $1,136,118
- 2023: $538,933
- 2024: $861,268
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Industry payments (Open Payments)
Industry payments (Open Payments) decreased 17% from $3,162.97 in 2021 to $2,631.66 in 2025.
- 2021: $3,162.97
- 2022: $2,890.12
- 2023: $2,576.65
- 2024: $2,951.77
- 2025: $2,631.66
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), 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 2025 (payments made January 1 – December 31, 2025): 162 records totaling $2,631.66.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| QOL Medical, LLC |
Food and Beverage
In-kind items and services
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Sucraid | General | $48.56 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
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SKYRIZI | General | $30.45 |
| Takeda Pharmaceuticals U.S.A., Inc. |
Food and Beverage
In-kind items and services
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ENTYVIO | General | $28.03 |
| Gilead Sciences, Inc. |
Food and Beverage
In-kind items and services
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— | General | $26.52 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
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SKYRIZI | General | $26.48 |
| Takeda Pharmaceuticals U.S.A., Inc. |
Food and Beverage
In-kind items and services
|
ENTYVIO | General | $26.39 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
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MAVYRET | General | $26.24 |
| Ardelyx, Inc. |
Food and Beverage
In-kind items and services
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IBSRELA | General | $25.83 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
LINZESS | General | $25.67 |
| Takeda Pharmaceuticals U.S.A., Inc. |
Food and Beverage
In-kind items and services
|
ENTYVIO | General | $25.35 |
| Takeda Pharmaceuticals U.S.A., Inc. |
Food and Beverage
In-kind items and services
|
ENTYVIO | General | $25.29 |
| Phathom Pharmaceuticals, Inc. |
Food and Beverage
Cash or cash equivalent
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VOQUEZNA | General | $24.16 |
| Intercept Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
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OCALIVA | General | $24.04 |
| Takeda Pharmaceuticals U.S.A., Inc. |
Food and Beverage
In-kind items and services
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ENTYVIO | General | $23.94 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
SKYRIZI | General | $23.88 |
| Takeda Pharmaceuticals U.S.A., Inc. |
Food and Beverage
In-kind items and services
|
ENTYVIO | General | $23.32 |
| Takeda Pharmaceuticals U.S.A., Inc. |
Food and Beverage
In-kind items and services
|
EOHILIA | General | $22.81 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
LINZESS | General | $22.77 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
RINVOQ | General | $22.77 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
MAVYRET | General | $22.60 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
RINVOQ | General | $22.51 |
| Aimmune Therapeutics, Inc. |
Food and Beverage
In-kind items and services
|
ZENPEP | General | $22.32 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
SKYRIZI | General | $21.62 |
| Celltrion USA Inc. |
Food and Beverage
In-kind items and services
|
VEGZELMA | General | $21.54 |
| Takeda Pharmaceuticals U.S.A., Inc. |
Food and Beverage
In-kind items and services
|
EOHILIA | General | $21.22 |
(top 25 shown)
Source: CMS Open Payments, program year 2025, 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 2016–2023 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 |
|---|---|---|---|---|
|
99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
|
162 | 129 | $90.00 | $83.72 |
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43239
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope
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145 | 133 | $650.00 | $108.33 |
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45385
Removal of polyps or growths of large bowel using an endoscope with mechanical snare
|
79 | 79 | $900.00 | $228.78 |
|
43450
Dilation of esophagus
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52 | 50 | $500.00 | $36.13 |
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45380
Biopsy of large bowel using a flexible endoscope
|
42 | 42 | $850.00 | $118.09 |
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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
|
34 | 24 | $140.00 | $115.85 |
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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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26 | 26 | $160.00 | $105.13 |
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G0105
Colorectal cancer screening; colonoscopy on individual at high risk
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18 | 18 | $800.00 | $172.47 |
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46930
Destruction of internal hemorrhoids using heat
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15 | 15 | $450.00 | $89.88 |
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43255
Control of bleeding of esophagus, stomach, and/or upper small bowel using a flexible endoscope
|
14 | 13 | $950.00 | $182.77 |
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G0121
Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk
|
13 | 12 | $800.00 | $166.14 |
|
45381
Injection beneath lining of large bowel using a flexible endoscope
|
11 | 11 | $850.00 | $29.73 |
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 |
|---|---|---|---|---|---|
| Pantoprazole Sodium | Pantoprazole Sodium | 873 | 39,849 | $6,949.51 | 253 |
| Famotidine | Famotidine | 532 | 22,045 | $4,914.60 | 157 |
| Omeprazole | Omeprazole | 238 | 10,533 | $2,689.78 | 71 |
| Linzess | Linaclotide | 184 | 6,000 | $106,875.13 | 49 |
| Dicyclomine Hcl | Dicyclomine Hcl | 100 | 3,283 | $989.83 | 35 |
| Ondansetron Odt | Ondansetron | 92 | 1,427 | $1,856.02 | 37 |
| Trulance | Plecanatide | 76 | 2,610 | $47,743.21 | 26 |
| Sucralfate | Sucralfate | 72 | 1,652 | $1,547.68 | 17 |
| Lactulose | Lactulose | 61 | 2,117 | $1,388.05 | 37 |
| Metronidazole | Metronidazole | 47 | 392 | $340.39 | 44 |
| Colestipol Hcl | Colestipol Hcl | 47 | 1,950 | $2,215.00 | 20 |
| Motegrity | Prucalopride Succinate | 41 | 1,650 | $29,546.20 | 13 |
| Lubiprostone | Lubiprostone | 41 | 1,710 | $3,611.81 | 16 |
| Dexlansoprazole Dr | Dexlansoprazole | 37 | 1,580 | $6,821.75 | 11 |
| Esomeprazole Magnesium | Esomeprazole Magnesium | 35 | 1,350 | $2,084.78 | — |
| Lansoprazole | Lansoprazole | 33 | 1,710 | $665.12 | — |
| Xifaxan | Rifaximin | 33 | 965 | $102,913.73 | — |
| Diphenoxylate-Atropine | Diphenoxylate Hcl/Atropine | 31 | 930 | $280.09 | — |
| Gavilyte-G | Peg3350/Sod Sulf,bicarb,cl/Kcl | 31 | 91 | $402.60 | 29 |
| Ondansetron Hcl | Ondansetron Hcl | 29 | 690 | $549.88 | 14 |
| Hydrocortisone | Hydrocortisone | 27 | 554 | $188.70 | 20 |
| Budesonide Dr | Budesonide | 26 | 722 | $2,693.28 | — |
| Sulfasalazine | Sulfasalazine | 25 | 750 | $303.61 | — |
| Cimetidine | Cimetidine | 22 | 660 | $377.91 | — |
| Zenpep | Lipase/Protease/Amylase | 20 | 650 | $113,048.15 | — |
(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: 207R00000X
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
NUCC Taxonomy Code: 207RG0100X
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - INTERNAL MEDICINE
I20110810000188
OH
9436328309
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
The Gastroenterology Clinic And Endoscopy Center Inc
1622 E Market St, Warren, OH 444836613
Phone: 3303997215
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 - Gerontology
Nurse Practitioner - Family
Certified Nurse Practitioner
Pathology - Anatomic Pathology & Clinical Pathology
Doctor of Medicine (M.D.)
Nurse Practitioner - Family
Master of Science in Nursing, Registered Nurse, Family Nurse Practitioner (Board Certified)
Nurse Practitioner
Nurse Anesthetist, Certified Registered
Certified Registered Nurse Anesthetist
Career & Practice History
NPI enumerated May 18, 2010.
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 Internal Medicine Providers in Warren
- Dr. Christopher Chuirazzi, MD
- Dr. Essam Ragheb, MD
- Dr. Charles Mcgowen, MD
- Dr. Mona Parikh, MD
- Dr. Christopher Hebert, MD
- Dr. Reshashree Shah, MD
Mailing Address
1622 E Market St
Warren, OH 444836613
Phone: 3303997215