Dr. Mark Jay Bailin, M.D.
Dr. Mark Jay Bailin is a General Practice Physician provider (General Practice) practicing in Chicago, IL, registered in the NPPES registry with NPI 1609068402 since 2007. The credential MD stands for Doctor of Medicine.
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1609068402 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Mark Jay Bailin |
| Credential | M.D. |
| Sex | Male |
| Practice address | Chicago, IL, 60660 |
| Phone | 7732622647 |
| Fax | 7732622647 |
| Enumeration date | 2007-08-15 |
| Last updated in NPPES | 2011-08-19 |
Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 208D00000X | General Practice Physician | Primary | 036-069-383 | IL |
| 2083X0100X | Occupational Medicine Physician | Secondary | 036-069-383 | IL |
| 207P00000X | Emergency Medicine Physician | Secondary | 036-069-383 | IL |
| 208M00000X | Hospitalist Physician | Secondary | 036-069-383 | IL |
| 208VP0014X | Interventional Pain Medicine Physician | Secondary | 036069383 | IL |
| 207QA0505X | Adult Medicine Physician | Secondary | 036069383 | IL |
MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential
Copy-ready billing details
Provider: Mark Bailin, M.D. NPI: 1609068402 Taxonomy: 208D00000X (General Practice Physician) Address: Chicago, IL, 60660
Verify this record
Cross-check NPI 1609068402 against the authoritative CMS record: view Dr. Mark Jay Bailin on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
Frequently asked questions
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Where does Mark Bailin practice?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2011-08-19.