Quick answers
- Where does David Blum see patients?
- Medicare's clinician data lists 3 practice locations, including Manchester, MD and Baltimore, MD. Call before your visit to confirm the address.
- What is David Blum's specialty?
- Medicare lists Optometry as the primary specialty.
- Does David Blum accept Medicare assignment?
- Yes. Medicare's clinician data says David Blum 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 the phone number for David Blum?
- (410) 239-6700, as listed in official Medicare / NPI Registry data.
- What is David Blum's NPI number?
- 1679520928. 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 David Blum is enrolled with Medicare (CMS data updated 2026-10-02).
- 2963 Manchester Rd, Suite BManchester, MD 21102 (410) 239‑6700
- 4425 Fitch Ave, Suite 120Baltimore, MD 21236 (410) 682‑3000
- 4425 Fitch Avenue, Suite 120Baltimore, MD 21236
Group practices
Medicare enrollment lists David Blum as a member of this group (CMS data updated 2026-10-02).
- DRS. Blum and Bruck, O.D. P.A.2 clinicians in the group
Specialties
- Optometryprimary
Other optometrists in Maryland
Clinicians with the same Medicare primary specialty in Maryland — not a recommendation.
Clinician information
| Credential | OD |
|---|---|
| Graduation year | 1983 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1679520928 |
| 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