Quick answers
- Where does Jonathan Katz see patients?
- Medicare's clinician data lists 1 practice location in Baltimore, MD. Call before your visit to confirm the address.
- What is Jonathan Katz's specialty?
- Medicare lists Ophthalmology as the primary specialty.
- Does Jonathan Katz accept Medicare assignment?
- Yes. Medicare's clinician data says Jonathan Katz accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is Jonathan Katz's NPI number?
- 1447678487. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Jonathan Katz is enrolled with Medicare (CMS data updated 2026-10-02).
- 301 Saint Paul StBaltimore, MD 21202
Group practices
Medicare enrollment lists Jonathan Katz as a member of this group (CMS data updated 2026-10-02).
- Katzen Medical Associates PC23 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Baltimore
Clinicians with the same Medicare primary specialty in Baltimore, MD — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | George Washington University School Of Medicine |
| Graduation year | 2014 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1447678487 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians