Quick answers
- Which hospitals does Joseph J. Barth Iii work at?
- Medicare's official clinician data lists Joseph J. Barth Iii at 2 hospitals: Calverthealth Medical Center and MedStar Saint Mary's Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Joseph J. Barth Iii see patients?
- Medicare's clinician data lists 5 practice locations, including Dunkirk, MD, Prince Frederick, MD and Solomons, MD. Call before your visit to confirm the address.
- What is Joseph J. Barth Iii's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Joseph J. Barth Iii accept Medicare assignment?
- Yes. Medicare's clinician data says Joseph J. Barth Iii 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.
- Does Joseph J. Barth Iii offer telehealth?
- Medicare's clinician data says Joseph J. Barth Iii offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Joseph J. Barth Iii?
- (410) 535-1451, as listed in official Medicare / NPI Registry data.
- What is Joseph J. Barth Iii's NPI number?
- 1164571741. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Joseph J. Barth Iii works
Medicare's Facility Affiliation Data lists Joseph J. Barth Iii at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Calverthealth Medical CenterPrince Frederick, MD · Acute Care Hospital · CCN 210039
- MedStar Saint Mary's HospitalLeonardtown, MD · Acute Care Hospital · CCN 210028
Practice locations
Addresses where Joseph J. Barth Iii is enrolled with Medicare (CMS data updated 2026-10-02).
- 10845 Town Ctr Blvd, Suite 204Dunkirk, MD 20754
- 110 Hospital Rd, Suite 303Prince Frederick, MD 20678
- 14090 Hg Trueman Rd, Suite 2500Solomons, MD 20688
- 3995 Old Town Rd, Suite 202Huntingtown, MD 20639 (410) 535‑1451
- 985 Prince Frederick Blvd, Suite 201Prince Frederick, MD 20678 (410) 535‑2005
Group practices
Medicare enrollment lists Joseph J. Barth Iii as a member of this group (CMS data updated 2026-10-02).
- Calvert Internal Medicine Group, PA39 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Dunkirk
Clinicians with the same Medicare primary specialty in Dunkirk, MD — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Texas Medical School At Houston |
| Graduation year | 1986 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1164571741 |
| 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