Doctor profile · Federal record
Dr. Zainulabuddin Syed, M.D.
Internal Medicine Physician (CMS: Internal Medicine) · Downers Grove, IL
- NPI 1609876424
- Accepts Medicare
- 53 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
4121 Fairview Ave Ste L1
Downers Grove, IL 605152265
(630) 968-4790
fax (630) 968-8755
Credentials & registration
- NPI registered
- July 2005 — 21 yrs on file
- Profile last updated
- March 2, 2026
- Year of graduation
- 1973 — 53 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Illinois #036091132
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1609876424. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
775
Distinct HCPCS
10
Medicare allowed
$72,782
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 232 | 90 | $84 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 122 | 35 | $81 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 109 | 63 | $133 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 77 | 77 | $133 | |
99238 |
Hospital discharge day management, 30 minutes or less | 48 | 41 | $83 | |
99212 |
Established patient office or other outpatient visit, 10-19 minutes | 46 | 26 | $54 | |
99221 |
Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes | 45 | 37 | $87 | |
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 32 | 14 | $52 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 22 | 12 | $123 | |
93306 |
Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | 15 | 15 | $201 |
In context: peer comparison
Among 12 peers in this city , average services per provider: 117. This provider delivers 6.6× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
1,259
Patients
388
Total drug cost
$18,250
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 167 | 47 | $3,544 |
| Levothyroxine Sodium | Generic | 143 | 41 | $2,383 |
| Metformin Hcl | Generic | 129 | 38 | $1,730 |
| Amlodipine Besylate | Generic | 111 | 38 | $1,320 |
| Lisinopril | Generic | 106 | 35 | $942 |
| Losartan Potassium | Generic | 87 | 27 | $1,916 |
| Simvastatin | Generic | 78 | 26 | $844 |
| Metoprolol Tartrate | Generic | 70 | 25 | $530 |
| Hydrochlorothiazide | Generic | 63 | 18 | $601 |
| Torsemide | Generic | 62 | 12 | $778 |
Frequently asked questions
What is Dr. Zainulabuddin Syed's medical specialty?
Dr. Zainulabuddin Syed practices Internal Medicine Physician in Downers Grove, IL.
Where does Dr. Zainulabuddin Syed practice?
Dr. Zainulabuddin Syed practices at 4121 Fairview Ave Ste L1, Downers Grove, IL 605152265. Office phone: 6309684790.
What is Dr. Zainulabuddin Syed's NPI?
Dr. Zainulabuddin Syed's National Provider Identifier (NPI) is 1609876424, issued by NPPES.
Does Dr. Zainulabuddin Syed accept Medicare assignment?
Yes. Dr. Zainulabuddin Syed accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Zainulabuddin Syed commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); 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.