Doctor profile · Federal record
Dr. Christopher Greb, MD
Allergy & Immunology (Internal Medicine) Physician (CMS: Allergy/Immunology) · Internal Medicine Physician · Student in an Organized Health Care Education/Training Program · Chicago, IL
- NPI 1134623895
- Accepts Medicare
- 6 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 3 locations .
- Primary practice
-
1725 W Harrison Street Ste 970
Chicago, IL 606123828
(312) 942-6979 - Additional location
-
2160 S 1St Ave
Maywood, IL 601533328
(888) 584-7888 - Additional location
-
500 S Preston St Rm 305
Louisville, KY 402021702
(502) 852-8696
Credentials & registration
- NPI registered
- March 2018 — 8 yrs on file
- Profile last updated
- June 26, 2023
- Year of graduation
- 2020 — 6 yrs since
- Specialty taxonomy
- 207RA0201X — NUCC code
- State licenses (2)
- Illinois #036165118 · Illinois #125.075689
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1134623895. Last verified May 11, 2026.Open Payments
Industry payments received
All-time total
$848
Transactions
9
Manufacturers
6
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| AstraZeneca Pharmaceuticals Lp | 3 | $342.65 | |
| Genzyme Corporation | 2 | $207.06 | |
| Blueprint Medicines Corporation | 1 | $112.02 | |
| Novartis Pharmaceuticals Corporation | 1 | $87.22 | |
| Kedrion Biopharma, INC. | 1 | $80.14 | |
| Collegium Pharmaceutical, INC. | 1 | $19.27 |
By nature of payment
Frequently asked questions
What is Dr. Christopher Greb's medical specialty?
Dr. Christopher Greb practices Allergy & Immunology (Internal Medicine) Physician in Chicago, IL.
Where does Dr. Christopher Greb practice?
Dr. Christopher Greb practices at 1725 W Harrison Street Ste 970, Chicago, IL 606123828. Office phone: 3129426979.
What is Dr. Christopher Greb's NPI?
Dr. Christopher Greb's National Provider Identifier (NPI) is 1134623895, issued by NPPES.
Does Dr. Christopher Greb accept Medicare assignment?
Yes. Dr. Christopher Greb accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.