Quick answers
- Which hospitals does Ajay Kumar work at?
- Medicare's official clinician data lists Ajay Kumar at 2 hospitals: Johns Hopkins Howard County Medical Center and Mercy Medical Center Inc. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Ajay Kumar see patients?
- Medicare's clinician data lists 2 practice locations, including Laurel, MD and Columbia, MD. Call before your visit to confirm the address.
- What is Ajay Kumar's specialty?
- Medicare lists Nephrology as the primary specialty.
- Does Ajay Kumar accept Medicare assignment?
- Yes. Medicare's clinician data says Ajay Kumar 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 Ajay Kumar?
- (301) 725-3559, as listed in official Medicare / NPI Registry data.
- What is Ajay Kumar's NPI number?
- 1922141241. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Ajay Kumar works
Medicare's Facility Affiliation Data lists Ajay Kumar at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Johns Hopkins Howard County Medical CenterColumbia, MD · Acute Care Hospital · CCN 210048
- Mercy Medical Center IncBaltimore, MD · Acute Care Hospital · CCN 210008
Practice locations
Addresses where Ajay Kumar is enrolled with Medicare (CMS data updated 2026-10-02).
- 14631 Laurel Bowie Rd, Suite 100Laurel, MD 20707 (301) 725‑3559
- 5999 Harpers Farm Rd, Suite W250Columbia, MD 21044 (410) 772‑8822
Group practices
Medicare enrollment lists Ajay Kumar as a member of this group (CMS data updated 2026-10-02).
- Mid-Atlantic Nephrology Associates PA61 clinicians in the group
Specialties
- Nephrologyprimary
Other nephrologists in Laurel
Clinicians with the same Medicare primary specialty in Laurel, MD — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1999 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1922141241 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- 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