Quick answers
- Where does Paul B. Keiser see patients?
- Medicare's clinician data lists 2 practice locations, including Frederick, MD and Rockville, MD. Call before your visit to confirm the address.
- What is Paul B. Keiser's specialty?
- Medicare lists Allergy/Immunology as the primary specialty.
- Does Paul B. Keiser accept Medicare assignment?
- Yes. Medicare's clinician data says Paul B. Keiser 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 Paul B. Keiser?
- (240) 817-0810, as listed in official Medicare / NPI Registry data.
- What is Paul B. Keiser's NPI number?
- 1457476699. 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 Paul B. Keiser is enrolled with Medicare (CMS data updated 2026-10-02).
- 112 Thomas Johnson Dr, Suite 210Frederick, MD 21702 (240) 817‑0810
- 14995 Shady Grove Rd, Suite 100Rockville, MD 20850 (301) 869‑7820
Group practices
Medicare enrollment lists Paul B. Keiser as a member of these groups (CMS data updated 2026-10-02).
- Asthma and Allergy Center LLC36 clinicians in the group
- DMV Allergy and Asthma Center LLC7 clinicians in the group
Specialties
- Allergy/Immunologyprimary
Other allergist and immunologists in Maryland
Clinicians with the same Medicare primary specialty in Maryland — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Washington University School Of Medicine |
| Graduation year | 1994 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1457476699 |
| 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