Dr. Jonathan Dowd , MD
Internal Medicine • Chicago, IL
5841 S Maryland Ave
Chicago, IL 606371443
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. Jonathan Dowd is listed in NPPES under Internal Medicine.
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NPI assigned on June 12, 2018; this date does not establish years in practice.
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Published CMS data list 164 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:
- 99222 — Initial hospital care with straightforward or low-level medical decision making: 62 service units.
- 43239 — Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope: 46 service units.
- 45385 — Removal of polyps or growths of large bowel using an endoscope with mechanical snare: 29 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 4 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 70 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:
- Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,mag Sulfates) — 28 prescription fills, including refills.
- Omeprazole — 17 prescription fills, including refills.
- Pantoprazole Sodium — 13 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 4 records in the table · Guide: How to read Medicare Part D prescriber data
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Fewer Medicare Part B services than 70% of clinicians listed under Internal Medicine in Chicago, IL (2024, 1,008 clinicians with data). Median for this group: 406. Middle half: 157 to 820.
Fewer Medicare Part B services than 80% of clinicians listed under Internal Medicine in Illinois (2024, 3,249 clinicians with data). Median for this group: 699. Middle half: 285 to 1,340.
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 D prescriptions went from 119 in 2019 to 70 in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2019–2024.
Practice Location & Contact Primary Location
5841 S Maryland Ave
Chicago, IL 606371443
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 2 distinct group names: Deaconess Clinic Inc; Deaconess Specialty Physicians, 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
Loyola University Of Chicago, Stritch School Of Medicine
2018
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
169 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 $20,661 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 $16,685 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
96 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
$2,526 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: $216.07 across 11 records.
By nature of payment
- Food and Beverage: $216.07 across 11 records.
Reporting-company totals
- ABBVIE INC.: $157.25 across 8 records.
- Pfizer Inc.: $40.11 across 2 records.
- Sanofi and Genzyme US Companies: $18.71 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 2025 (published June 30, 2026).
Years since graduation
8 years (graduated 2018)
CMS Doctors and Clinicians data list 2018 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
2018
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. Dowd 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. Dowd 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 Chicago and Illinois
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Fewer Medicare Part B services than 70% of clinicians listed under Internal Medicine in Chicago, IL (2024, 1,008 clinicians with data). Median for this group: 406. Middle half: 157 to 820.
Fewer Medicare Part B services than 80% of clinicians listed under Internal Medicine in Illinois (2024, 3,249 clinicians with data). Median for this group: 699. Middle half: 285 to 1,340.
Medicare-allowed amount
A lower Medicare-allowed amount than 65% of clinicians listed under Internal Medicine in Chicago, IL (2024, 1,008 clinicians with data). Median for this group: $41,573. Middle half: $14,662 to $79,189.
A lower Medicare-allowed amount than 80% of clinicians listed under Internal Medicine in Illinois (2024, 3,249 clinicians with data). Median for this group: $67,802. Middle half: $27,619 to $124,679.
Paid by Medicare
A lower Medicare payment amount than 65% of clinicians listed under Internal Medicine in Chicago, IL (2024, 1,008 clinicians with data). Median for this group: $31,519. Middle half: $10,954 to $62,185.
A lower Medicare payment amount than 75% of clinicians listed under Internal Medicine in Illinois (2024, 3,249 clinicians with data). Median for this group: $52,838. Middle half: $21,117 to $98,214.
Medicare Part D prescriptions
Fewer Part D prescriptions than 75% of clinicians listed under Internal Medicine in Chicago, IL (2024, 1,269 clinicians with data). Median for this group: 474. Middle half: 74 to 2,358.
Fewer Part D prescriptions than 75% of clinicians listed under Internal Medicine in Illinois (2024, 3,755 clinicians with data). Median for this group: 1,030. Middle half: 99 to 4,658.
Part D drug cost
A lower Part D drug cost than 70% of clinicians listed under Internal Medicine in Chicago, IL (2024, 1,269 clinicians with data). Median for this group: $40,678. Middle half: $1,543 to $232,098.
A lower Part D drug cost than 75% of clinicians listed under Internal Medicine in Illinois (2024, 3,755 clinicians with data). Median for this group: $78,716. Middle half: $2,604 to $371,507.
2,870 active clinicians are listed under Internal Medicine with a practice address in Chicago, IL (7,245 in Illinois).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Chicago
13.3% of these 2,870 clinicians have the CMS telehealth indicator.
38.5% of these 2,870 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
CMS data for Medicare Part B services are available for 2024 only.
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Medicare-allowed amount
CMS data for Medicare-allowed amount are available for 2024 only.
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Paid by Medicare
CMS data for Medicare payment amount are available for 2024 only.
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 41% from 119 in 2019 to 70 in 2024.
- 2019: 119
- 2020: 203
- 2021: 113
- 2022: 17
- 2024: 70
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30-day fills
30-day fills decreased 61% from 242 in 2019 to 96 in 2024.
- 2019: 242
- 2020: 468
- 2021: 286
- 2022: 17
- 2024: 96
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Part D drug cost
Part D drug cost increased 31% from $1,932 in 2019 to $2,526 in 2024.
- 2019: $1,932
- 2020: $1,970
- 2021: $1,292
- 2022: $198
- 2024: $2,526
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $99.52 in 2022 to $216.07 in 2025.
- 2022: $99.52
- 2023: $109.55
- 2024: $517.89
- 2025: $216.07
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): 11 records totaling $216.07.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| ABBVIE INC. |
Food and Beverage
In-kind items and services
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RINVOQ | General | $26.67 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
RINVOQ | General | $24.88 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
RINVOQ | General | $24.31 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
CREON | General | $21.62 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
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VELSIPITY | General | $20.30 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
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VELSIPITY | General | $19.81 |
| Sanofi and Genzyme US Companies |
Food and Beverage
In-kind items and services
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DUPIXENT | General | $18.71 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
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RINVOQ | General | $18.56 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
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RINVOQ | General | $16.67 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
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RINVOQ | General | $12.42 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
RINVOQ | General | $12.12 |
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 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, 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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99222
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes
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62 | 61 | $263.00 | $120.53 |
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43239
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope
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46 | 45 | $1159.70 | $80.81 |
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45385
Removal of polyps or growths of large bowel using an endoscope with mechanical snare
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29 | 29 | $1611.44 | $218.23 |
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45380
Biopsy of large bowel using a flexible endoscope
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27 | 27 | $1433.14 | $116.37 |
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 |
|---|---|---|---|---|---|
| Sod Sulf-Potass Sulf-Mag Sulf | Sodium, Potassium,mag Sulfates | 28 | 36 | $1,861.67 | 27 |
| Omeprazole | Omeprazole | 17 | 675 | $188.22 | — |
| Pantoprazole Sodium | Pantoprazole Sodium | 13 | 990 | $334.25 | — |
| Gavilyte-G | Peg3350/Sod Sulf,bicarb,cl/Kcl | 12 | 17 | $142.14 | 12 |
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: 2024-07-19NUCC 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 - GASTROENTEROLOGY
I20240905003491
KY
6901153261
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
Deaconess Clinic Inc
4551 Springhill Dr, Owensboro, KY 423034671
Phone: 2702153199
Deaconess Specialty Physicians, Inc
721 W 13th St, Jasper, IN 475461855
Phone: 8129965671
Deaconess Clinic Inc
4219 Gateway Blvd, Newburgh, IN 476307925
Phone: 8124269545
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Anesthesiology
Doctor of Medicine (M.D.)
Internal Medicine - Medical Oncology
Doctor of Medicine (M.D.)
Internal Medicine - Hematology & Oncology
Doctor of Medicine (M.D.)
Internal Medicine
Doctor of Medicine (M.D.)
Internal Medicine
Internal Medicine - Gastroenterology
Career & Practice History
NPI enumerated June 12, 2018.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from July 2018 to August 2026.
NPI Administrative Meta
Other Internal Medicine Providers in Chicago
- Dr. Suchita Kishore, MD
- Dr. Charles Swanson, MD
- Dr. Michael Hoffman, MD
- Dr. James Hwang, MD
- Dr. Marcie Claybon, MD
- Vineet Arora
Mailing Address
180 Harvester Dr Ste 110
Burr Ridge, IL 605276686
Phone: 7737021150