Doctor profile · Federal record
Dr. Merrill Zahtz, M.D.
Internal Medicine Physician (CMS: Internal Medicine) · Chicago, IL
- NPI 1225097819
- Accepts Medicare
- 51 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
6374 N Lincoln Ave
Chicago, IL 606591275
(872) 270-5999 - Mailing address
-
3525 W Granville Ave
Chicago, IL 606592221
Credentials & registration
- NPI registered
- March 2006 — 20 yrs on file
- Profile last updated
- August 5, 2025
- Year of graduation
- 1975 — 51 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Illinois #036-056-363
- Medicaid
- IL #0360563631
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1225097819. Last verified May 11, 2026.Open Payments
Industry payments received
All-time total
$78
Transactions
3
Manufacturers
3
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Pfizer INC. | 1 | $33.10 | |
| Amgen INC. | 1 | $23.11 | |
| Novo Nordisk INC | 1 | $22.01 |
By nature of payment
Frequently asked questions
What is Dr. Merrill Zahtz's medical specialty?
Dr. Merrill Zahtz practices Internal Medicine Physician in Chicago, IL.
Where does Dr. Merrill Zahtz practice?
Dr. Merrill Zahtz practices at 6374 N Lincoln Ave, Chicago, IL 606591275. Office phone: 8722705999.
What is Dr. Merrill Zahtz's NPI?
Dr. Merrill Zahtz's National Provider Identifier (NPI) is 1225097819, issued by NPPES.
Does Dr. Merrill Zahtz accept Medicare assignment?
Yes. Dr. Merrill Zahtz accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.