Doctor profile · Federal record
Dr. Aileen Zhen, DO
Nephrology Physician (CMS: Nephrology) · Internal Medicine Physician · Nephrology Physician · Springfield, IL
- NPI 1174985998
- Accepts Medicare
- MIPS 75.0 / 100 · 2023
- 10 yrs in practice
- Licensed in 3 states
- Female
- Solo practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
350 W Carpenter St
Springfield, IL 627024902
(217) 528-7541 - Additional location
-
800 Harrison Ave # BCD-G12
Boston, MA 021182905
(617) 638-8000 - Mailing address
-
Po Box 19248
Springfield, IL 627949248
Credentials & registration
- NPI registered
- March 2016 — 10 yrs on file
- Profile last updated
- July 7, 2021
- Year of graduation
- 2016 — 10 yrs since
- Specialty taxonomy
- 207RN0300X — NUCC code
- State licenses (3)
- Illinois #036.155827 · Pennsylvania #OT017265 · Massachusetts #279360
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1174985998. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,988
Distinct HCPCS
10
Medicare allowed
$172,299
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
82570 |
Creatinine level to test for kidney function or muscle injury | 353 | 235 | $5 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 336 | 132 | $76 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 254 | 171 | $120 | |
36415 |
Insertion of needle into vein for collection of blood sample | 215 | 128 | $6 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 146 | 128 | $86 | |
90961 |
Dialysis services, 2-3 physician visits per month (20 years or older) | 140 | 25 | $278 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 99 | 39 | $114 | |
90935 |
Hemodialysis procedure with physician evaluation | 96 | 53 | $68 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 76 | 71 | $125 | |
81001 |
Manual urinalysis test with examination using microscope, automated | 65 | 64 | $3 |
In context: peer comparison
Among 4 peers in this city , average services per provider: 112. This provider delivers 18× the peer median.Open Payments
Industry payments received
All-time total
$149
Transactions
7
Manufacturers
7
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Novartis Pharmaceuticals Corporation | 1 | $27.03 | |
| CorMedix Inc. | 1 | $25.72 | |
| SCPHARMACEUTICALS INC. | 1 | $24.06 | |
| CALLIDITAS THERAPEUTICS US INC. | 1 | $19.49 | |
| Amgen Inc. | 1 | $19.03 | |
| Fresenius USA Marketing, Inc. | 1 | $18.69 | |
| ABBVIE INC. | 1 | $15.33 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,706
Patients
422
Total drug cost
$208,908
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Calcitriol | Generic | 216 | 49 | $3,717 |
| Amlodipine Besylate | Generic | 208 | 57 | $2,153 |
| Potassium Chloride | Generic | 189 | 44 | $4,283 |
| Lisinopril | Generic | 168 | 49 | $1,832 |
| Losartan Potassium | Generic | 166 | 44 | $1,982 |
| Furosemide | Generic | 136 | 43 | $854 |
| Farxiga (Dapagliflozin Propanediol) | Brand | 91 | 18 | $76,343 |
| Hydralazine Hcl | Generic | 89 | 22 | $1,833 |
| Jardiance (Empagliflozin) | Brand | 79 | 11 | $61,445 |
| Carvedilol | Generic | 67 | 17 | $773 |
Hospital affiliations
Frequently asked questions
What is Dr. Aileen Zhen's medical specialty?
Dr. Aileen Zhen practices Nephrology Physician in Springfield, IL.
Where does Dr. Aileen Zhen practice?
Dr. Aileen Zhen practices at 350 W Carpenter St, Springfield, IL 627024902. Office phone: 2175287541.
What is Dr. Aileen Zhen's NPI?
Dr. Aileen Zhen's National Provider Identifier (NPI) is 1174985998, issued by NPPES.
Does Dr. Aileen Zhen accept Medicare assignment?
Yes. Dr. Aileen Zhen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Aileen Zhen commonly perform?
Top Medicare-reported procedures in 2023: Creatinine level to test for kidney function or muscle injury (HCPCS 82570); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.