Doctor profile · Federal record
Dr. Nanzeen Sayef, M.D.
Internal Medicine Physician (CMS: Internal Medicine) · Chicago, IL
- NPI 1003827411
- Accepts Medicare
- 40 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
2535 S King Dr
Chicago, IL 606164746
(312) 842-7117 - Mailing address
-
2311 W 22Nd St, Suite 202
Oak Brook, IL 605231225
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- December 16, 2021
- Year of graduation
- 1986 — 40 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Illinois #036-083499
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1003827411. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
543
Distinct HCPCS
8
Medicare allowed
$47,846
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 186 | 72 | $131 | |
36415 |
Insertion of needle into vein for collection of blood sample | 117 | 77 | $8 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 84 | 52 | $94 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 55 | 55 | $131 | |
G0008 |
Administration of influenza virus vaccine | 40 | 39 | $32 | |
90662 |
Influenza vaccine split virus, preservative free | 39 | 38 | $70 | |
90677 |
Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use | 11 | 11 | $281 | |
G0009 |
Administration of pneumococcal vaccine | 11 | 11 | $32 |
In context: peer comparison
Among 487 peers in Chicago Internal Medicine Physician, average services per provider: 168. This provider delivers 3.2× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
3,508
Patients
973
Total drug cost
$159,704
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 598 | 169 | $9,406 |
| Amlodipine Besylate | Generic | 596 | 166 | $5,183 |
| Metoprolol Succinate | Generic | 390 | 108 | $7,778 |
| Losartan Potassium | Generic | 303 | 85 | $4,749 |
| Hydrochlorothiazide | Generic | 272 | 81 | $957 |
| Lisinopril | Generic | 213 | 56 | $2,040 |
| Metformin Hcl | Generic | 155 | 44 | $1,320 |
| Furosemide | Generic | 152 | 43 | $947 |
| Allopurinol | Generic | 151 | 40 | $1,907 |
| Albuterol Sulfate Hfa (Albuterol Sulfate) | Brand | 136 | 37 | $6,449 |
Hospital affiliations
Frequently asked questions
What is Dr. Nanzeen Sayef's medical specialty?
Dr. Nanzeen Sayef practices Internal Medicine Physician in Chicago, IL.
Where does Dr. Nanzeen Sayef practice?
Dr. Nanzeen Sayef practices at 2535 S King Dr, Chicago, IL 606164746. Office phone: 3128427117.
What is Dr. Nanzeen Sayef's NPI?
Dr. Nanzeen Sayef's National Provider Identifier (NPI) is 1003827411, issued by NPPES.
Does Dr. Nanzeen Sayef accept Medicare assignment?
Yes. Dr. Nanzeen Sayef accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Nanzeen Sayef commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Insertion of needle into vein for collection of blood sample (HCPCS 36415); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.