Quick answers
- Does Joseph M. Kiernan accept Medicare assignment?
- Yes. Medicare's clinician data says Joseph M. Kiernan accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Joseph M. Kiernan see?
- In 2024, CMS data shows 811 Original Medicare patients and 1,986 services for Joseph M. Kiernan. This counts Original Medicare only and measures volume, not quality.
- What is Joseph M. Kiernan's NPI number?
- 1427052406. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Joseph M. Kiernan, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 811 |
|---|---|
| Services billed to Medicare | 1,986 |
| Different services or procedures | 48 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)627 services
- Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)511 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)307 services
- Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)75 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)63 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease62%
- Arthritis48%
- Heart failure37%
- Atrial fibrillation36%
Hospitals where Joseph M. Kiernan works
Medicare's Facility Affiliation Data lists Joseph M. Kiernan at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Inova Alexandria HospitalAlexandria, VA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 490040
- Inova Fair Oaks HospitalFairfax, VA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: not listed by Medicare · CCN 490101
- Inova Fairfax HospitalFalls Church, VA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 490063
- Inova Loudoun HospitalLeesburg, VA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 490043
- Virginia Hospital CenterArlington, VA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 490050
Practice locations
Addresses where Joseph M. Kiernan is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 10; the Medicare profile lists all.
- 1005 N Glebe RdArlington, VA 22201
- 1701 N George Mason DrArlington, VA 22205 (703) 558‑5000
- 2901 Telestar Court, Suite 525Falls Church, VA 22042 (703) 852‑7750
- 2901 Telestar CtFalls Church, VA 22042
- 2901 Telestar Ct, Suite 200Falls Church, VA 22042 (703) 573‑3494
Group practices
Medicare enrollment lists Joseph M. Kiernan as a member of this group (CMS data updated October 2, 2026).
- Inova Health Care Services1,817 clinicians in the group
Specialties
Other interventional cardiologists in Arlington
Clinicians with the same Medicare primary specialty in Arlington, VA — not a recommendation.
Other clinicians in Inova Health Care Services
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Virginia Commonwealth University, School Of Medicine |
| Graduation year | 1982 (44 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1427052406 |
| 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 October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- 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