Doctor profile · Federal record
Dr. Jason Day, MD
Vascular Neurology Physician (CMS: Neurology) · Vascular Neurology Physician · Neurology Physician · Oak Lawn, IL
- NPI 1427205038
- Accepts Medicare
- MIPS 100.0 / 100 · 2023
- 21 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
4440 W 95Th St
Oak Lawn, IL 604532600
(303) 436-2727 - Additional location
-
841 Prudential Dr Fl 10, Credentialing Department
Jacksonville, FL 322078329
(904) 398-5404
fax (904) 391-5545 - Mailing address
-
29373 Network Pl
Chicago, IL 606731293
Credentials & registration
- NPI registered
- August 2008 — 18 yrs on file
- Profile last updated
- January 19, 2026
- Year of graduation
- 2005 — 21 yrs since
- Specialty taxonomy
- 2084V0102X — NUCC code
- State licenses (2)
- Illinois #036-172471 · Florida #ME120414
- Medicaid (2)
- FL #013517400 · WI #100387633
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1427205038. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
483
Distinct HCPCS
10
Medicare allowed
$53,586
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 137 | 100 | $78 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 111 | 103 | $126 | |
99221 |
Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes | 59 | 57 | $85 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 41 | 41 | $132 | |
99291 |
Critical care, first 30-74 minutes | 34 | 33 | $217 | |
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 27 | 25 | $51 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 25 | 25 | $88 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 21 | 21 | $175 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 15 | 13 | $114 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 13 | 13 | $167 |
In context: peer comparison
Among 1 peers in Oak Lawn Vascular Neurology Physician, average services per provider: 48. This provider delivers 10× the peer median.Open Payments
Industry payments received
All-time total
$6,123
Transactions
16
Manufacturers
8
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Abbott Laboratories | 6 | $4,308.77 | |
| W. L. Gore & Associates, INC. | 2 | $1,350.00 | |
| Penumbra, INC. | 1 | $148.79 | |
| Silk Road Medical, INC. | 1 | $135.94 | |
| Argenx US, INC. | 1 | $69.87 | |
| Lilly USA, LLC | 2 | $47.76 | |
| Csl Behring | 2 | $44.80 | |
| AstraZeneca Pharmaceuticals Lp | 1 | $17.11 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
356
Patients
79
Total drug cost
$155,234
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Eliquis (Apixaban) | Brand | 164 | 37 | $132,420 |
| Clopidogrel (Clopidogrel Bisulfate) | Brand | 57 | 19 | $651 |
| Brilinta (Ticagrelor) | Brand | 43 | 0 | $20,469 |
| Levetiracetam | Generic | 42 | 11 | $1,292 |
| Atorvastatin Calcium | Generic | 38 | 12 | $288 |
| Amlodipine Besylate | Generic | 12 | 0 | $114 |
Frequently asked questions
What is Dr. Jason Day's medical specialty?
Dr. Jason Day practices Vascular Neurology Physician in Oak Lawn, IL.
Where does Dr. Jason Day practice?
Dr. Jason Day practices at 4440 W 95Th St, Oak Lawn, IL 604532600. Office phone: 3034362727.
What is Dr. Jason Day's NPI?
Dr. Jason Day's National Provider Identifier (NPI) is 1427205038, issued by NPPES.
Does Dr. Jason Day accept Medicare assignment?
Yes. Dr. Jason Day accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Jason Day commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Established patient office or other outpatient visit (HCPCS 99214); Initial hospital care with straightforward or low level of medical decision making (HCPCS 99221). Source: CMS Medicare Physician & Other Practitioners file.