Dr. Jay Vakil , DO
Internal Medicine β’ Chicago, IL
1901 W Harrison St
Chicago, IL 606123714
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 March 24, 2021; this date does not establish years in practice.
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Published CMS data list 58 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers β 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 β 18 prescription fills, including refills.
- Metformin Hcl β 15 prescription fills, including refills.
- Hydrochlorothiazide β 13 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers β 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 Β· Guide: How to read Medicare Part D prescriber data
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Fewer Part D prescriptions than 75% of clinicians listed under Internal Medicine in Chicago, IL (2024, 1,238 clinicians with data). Median for this group: 500. Middle half: 78 to 2,381.
Fewer Part D prescriptions than 80% of clinicians listed under Internal Medicine in Illinois (2024, 3,709 clinicians with data). Median for this group: 1,078. Middle half: 101 to 4,775.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part D prescriptions went from 29 in 2023 to 58 in 2024.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2023β2024.
Practice Location & Contact Primary Location
1901 W Harrison St
Chicago, IL 606123714
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
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
30-day fills
114 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
$349 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 β by Provider and Drug, 2024.
Open Payments general payments, program year 2025
All general payments: $799.67 across 26 records.
By nature of payment
- Food and Beverage: $700.67 across 25 records.
- Education: $99.00 across 1 record.
Reporting-company totals (3 largest of 16)
- Incyte Corporation: $124.94 across 2 records.
- Adaptive Biotechnologies Corporation: $87.83 across 2 records.
- Pfizer Inc.: $87.10 across 3 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).
NPI first issued
2021
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, βDoes your provider accept Medicare as full payment?β
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. Vakil 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. Vakil 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
Fewer Part D prescriptions than 75% of clinicians listed under Internal Medicine in Chicago, IL (2024, 1,238 clinicians with data). Median for this group: 500. Middle half: 78 to 2,381.
Fewer Part D prescriptions than 80% of clinicians listed under Internal Medicine in Illinois (2024, 3,709 clinicians with data). Median for this group: 1,078. Middle half: 101 to 4,775.
Part D drug cost
A lower Part D drug cost than 85% of clinicians listed under Internal Medicine in Chicago, IL (2024, 1,238 clinicians with data). Median for this group: $42,371. Middle half: $1,836 to $234,977.
A lower Part D drug cost than 85% of clinicians listed under Internal Medicine in Illinois (2024, 3,709 clinicians with data). Median for this group: $81,781. Middle half: $2,821 to $375,415.
2,824 active clinicians are listed under Internal Medicine with a practice address in Chicago, IL (7,197 in Illinois).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Chicago
13.5% of these 2,824 clinicians have the CMS telehealth indicator.
38.7% of these 2,824 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 100% from 29 in 2023 to 58 in 2024.
- 2023: 29
- 2024: 58
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30-day fills
30-day fills increased 56% from 73 in 2023 to 114 in 2024.
- 2023: 73
- 2024: 114
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Part D drug cost
Part D drug cost went from $566 in 2023 to $349 in 2024.
- 2023: $566
- 2024: $349
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $502.34 in 2024 to $799.67 in 2025.
- 2024: $502.34
- 2025: $799.67
Sources: 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 Β· 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 β December 31, 2025): 26 records totaling $799.67.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Incyte Corporation |
Education
Cash or cash equivalent
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β | General | $99.00 |
| Adaptive Biotechnologies Corporation |
Food and Beverage
Cash or cash equivalent
|
clonoSEQ | General | $49.51 |
| Deciphera Pharmaceuticals Inc. |
Food and Beverage
In-kind items and services
|
QINLOCK | General | $41.99 |
| SpringWorks Therapeutics, Inc. |
Food and Beverage
In-kind items and services
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OGSIVEO | General | $39.13 |
| Adaptive Biotechnologies Corporation |
Food and Beverage
Cash or cash equivalent
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clonoSEQ | General | $38.32 |
| Genentech, Inc. |
Food and Beverage
In-kind items and services
|
Itovebi | General | $34.83 |
| EMD Serono, Inc. |
Food and Beverage
Cash or cash equivalent
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β | General | $34.35 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
|
TUKYSA | General | $33.87 |
| SpringWorks Therapeutics, Inc. |
Food and Beverage
In-kind items and services
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OGSIVEO | General | $33.28 |
| Eli Lilly and Company |
Food and Beverage
In-kind items and services
|
VERZENIO | General | $30.54 |
| GlaxoSmithKline, LLC. |
Food and Beverage
In-kind items and services
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JEMPERLI | General | $29.00 |
| Sanofi and Genzyme US Companies |
Food and Beverage
In-kind items and services
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AYVAKIT | General | $27.97 |
| SOBI, INC |
Food and Beverage
In-kind items and services
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Vonjo | General | $27.81 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
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LORBRENA | General | $27.30 |
| EMD Serono, Inc. |
Food and Beverage
Cash or cash equivalent
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β | General | $27.21 |
| Incyte Corporation |
Food and Beverage
Cash or cash equivalent
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JAKAFI | General | $25.94 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
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PADCEV | General | $25.93 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
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IMFINZI | General | $24.49 |
| Eli Lilly and Company |
Food and Beverage
In-kind items and services
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VERZENIO | General | $23.93 |
| Merck Sharp & Dohme LLC |
Food and Beverage
In-kind items and services
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KEYTRUDA | General | $23.52 |
| BeOne Medicines USA, Inc. |
Food and Beverage
In-kind items and services
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BRUKINSA | General | $22.99 |
| Eli Lilly and Company |
Food and Beverage
In-kind items and services
|
VERZENIO | General | $21.38 |
| SOBI, INC |
Food and Beverage
In-kind items and services
|
Vonjo | General | $19.74 |
| Bayer Healthcare Pharmaceuticals Inc. |
Food and Beverage
In-kind items and services
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Nubeqa | General | $17.39 |
| pharmaand GmbH |
Food and Beverage
In-kind items and services
|
Rubraca | General | $10.29 |
(top 25 shown)
Source: CMS Open Payments, program year 2025, released June 30, 2026.
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 | 18 | 1,080 | $106.12 | β |
| Metformin Hcl | Metformin Hcl | 15 | 780 | $137.11 | β |
| Hydrochlorothiazide | Hydrochlorothiazide | 13 | 630 | $35.68 | β |
| Pantoprazole Sodium | Pantoprazole Sodium | 12 | 927 | $70.43 | β |
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: 2021-05-24NUCC 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.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSORDER AND REFERRING ONLY - HEMATOLOGY/ONCOLOGY
I20240927002088
IL
0547663981
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
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 - Gastroenterology
Doctor of Medicine (M.D.)
Physician Assistant
Physician Assistant
Internal Medicine - Hematology & Oncology
Doctor of Medicine (M.D.)
Internal Medicine - Cardiovascular Disease
Doctor of Medicine (M.D.), Master of Public Health
Psychiatry & Neurology - Neurology
Doctor of Medicine (M.D.)
Dermatology
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 1901 W HARRISON ST, CHICAGO, IL 606123714 (Tel: 3128646000)
Registered at 1901 W HARRISON ST, CHICAGO, IL 606123714 (Tel: 3128646000)
Recorded as JAY VAKIL, DO
Internal Medicine (license number reported to NPPES: IL 125078297)
NPI status registered as active in NPPES database
Registered at 1950 W POLK ST FL 6, CHICAGO, IL 606123723 (Tel: 3128647000)
Registered at 1950 W POLK ST FL 6, CHICAGO, IL 606123723
Recorded as JAY VAKIL
Student in an Organized Health Care Education/Training Program
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Internal Medicine Providers in Chicago
- Dr. Chris Tara Delos Reyes, MD
- Dr. Thalia Torres, MD
- Dr. Ewa Osolkowski, MD
- Dr. Shaheen Fatima, MD
- Dr. Nichole Roberts, MD
- Dr. Daniel Okamoto, MD
Mailing Address
1901 W Harrison St
Chicago, IL 606123714
Phone: 3128646000