Dr. Jennifer Christine Colleton , MD
Internal Medicine • Chicago, IL
800 E. 55th St
Chicago, IL 606154906
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. Jennifer Colleton is listed in NPPES under Internal Medicine.
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NPI assigned on July 19, 2007; this date does not establish years in practice.
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Published CMS data list 412 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:
- Atorvastatin Calcium — 97 prescription fills, including refills.
- Lisinopril — 41 prescription fills, including refills.
- Losartan Potassium — 36 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 16 records in the table · Guide: How to read Medicare Part D prescriber data
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Close to the middle for Part D prescriptions among clinicians listed under Internal Medicine in Chicago, IL (2024, 1,237 clinicians with data). Median for this group: 499. Middle half: 78 to 2,382.
Close to the middle for Part D prescriptions among clinicians listed under Internal Medicine in Illinois (2024, 3,708 clinicians with data). Median for this group: 1,080. Middle half: 101 to 4,782.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part D prescriptions went from 264 in 2020 to 412 in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2020–2024.
Practice Location & Contact Primary Location
800 E. 55th St
Chicago, IL 606154906
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: Erie Family Health Center, Inc. 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
Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University
2001
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
30-day fills
1,027 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
$9,674 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 2019–2025.
Years since graduation
25 years (graduated 2001)
CMS Doctors and Clinicians data list 2001 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
2007
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, “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, CMS release of October 2, 2026.
Enrolled in Medicare (PECOS)
Dr. Colleton 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. Colleton 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 D prescriptions
Close to the middle for clinicians listed under Internal Medicine in Chicago, IL (2024, 1,237 clinicians with data). Median for this group: 499. Middle half: 78 to 2,382.
Close to the middle for clinicians listed under Internal Medicine in Illinois (2024, 3,708 clinicians with data). Median for this group: 1,080. Middle half: 101 to 4,782.
Part D drug cost
A lower Part D drug cost than 65% of clinicians listed under Internal Medicine in Chicago, IL (2024, 1,237 clinicians with data). Median for this group: $42,326. Middle half: $1,878 to $235,097.
A lower Part D drug cost than 65% of clinicians listed under Internal Medicine in Illinois (2024, 3,708 clinicians with data). Median for this group: $82,134. Middle half: $2,821 to $375,574.
2,823 active clinicians are listed under Internal Medicine with a practice address in Chicago, IL (7,195 in Illinois).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Chicago
14% of these 2,823 clinicians have the CMS telehealth indicator.
39% of these 2,823 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 D prescriptions
Medicare Part D prescriptions increased 56% from 264 in 2020 to 412 in 2024.
- 2020: 264
- 2021: 329
- 2022: 308
- 2023: 389
- 2024: 412
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30-day fills
30-day fills increased 80% from 570 in 2020 to 1,027 in 2024.
- 2020: 570
- 2021: 717
- 2022: 760
- 2023: 923
- 2024: 1,027
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Part D drug cost
Part D drug cost decreased 10% from $10,800 in 2020 to $9,674 in 2024.
- 2020: $10,800
- 2021: $27,025
- 2022: $17,950
- 2023: $38,429
- 2024: $9,674
Sources: 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 · Report an error.
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 | 97 | 8,130 | $471.64 | 32 |
| Lisinopril | Lisinopril | 41 | 3,240 | $160.74 | 12 |
| Losartan Potassium | Losartan Potassium | 36 | 2,850 | $232.51 | — |
| Amlodipine Besylate | Amlodipine Besylate | 33 | 2,990 | $121.95 | — |
| Gabapentin | Gabapentin | 32 | 1,755 | $1,441.35 | — |
| Metformin Hcl | Metformin Hcl | 32 | 2,310 | $293.81 | 11 |
| Omeprazole | Omeprazole | 20 | 1,690 | $225.19 | — |
| Levothyroxine Sodium | Levothyroxine Sodium | 17 | 1,260 | $142.99 | — |
| Metoprolol Succinate | Metoprolol Succinate | 16 | 1,260 | $267.36 | — |
| Chlorthalidone | Chlorthalidone | 14 | 1,140 | $303.58 | — |
| Bupropion Xl | Bupropion Hcl | 14 | 630 | $232.20 | — |
| Alendronate Sodium | Alendronate Sodium | 13 | 1,036 | $115.33 | — |
| Cyclobenzaprine Hcl | Cyclobenzaprine Hcl | 13 | 390 | $57.07 | — |
| Carvedilol | Carvedilol | 12 | 990 | $75.38 | — |
| Januvia | Sitagliptin Phosphate | 11 | 330 | $5,495.26 | — |
| Pantoprazole Sodium | Pantoprazole Sodium | 11 | 810 | $37.52 | — |
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: 208000000X
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - INTERNAL MEDICINE
I20130620000029
IL
8921247149
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
Erie Family Health Center, Inc
1285 Hartrey Ave, Evanston, IL 602021056
Phone: 3126663494
Erie Family Health Center, Inc
1504 S Albany Ave, Chicago, IL 606232209
Phone: 3126663494
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Internal Medicine
Doctor of Osteopathic Medicine (D.O.)
Family Medicine
Doctor of Medicine (M.D.), JD, Master of Arts, Master of Public Health
Nurse Practitioner - Family
Advanced Practice Nurse
Obstetrics & Gynecology
Doctor of Medicine (M.D.)
Nurse Practitioner - Psychiatric/Mental Health
Psychiatric-Mental Health Nurse Practitioner
Nurse Practitioner - Family
Nurse Practitioner
Career & Practice History
NPI enumerated July 19, 2007.
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 Internal Medicine Providers in Chicago
- Dr. Natasa Margeta, MD
- Dr. Waldo Arteaga, MD
- Dr. Audrey Tatar, MD
- Jennifer Pisano
- Dr. Jose Castellanos, MD
- Dr. Fatlind Zhuta, MD
Mailing Address
800 E. 55th St
Chicago, IL 606154906
Phone: 7737020660