Quick answers
- Does Carleen Tylenda accept Medicare assignment?
- Yes. Medicare's clinician data says Carleen Tylenda 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 Carleen Tylenda see?
- In 2024, CMS data shows 694 Original Medicare patients and 10,352 services for Carleen Tylenda. This counts Original Medicare only and measures volume, not quality.
- What is Carleen Tylenda's NPI number?
- 1750343547. 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 Carleen Tylenda, 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 | 694 |
|---|---|
| Services billed to Medicare | 10,352 |
| Different services or procedures | 101 |
| Participating Medicare provider | Yes |
| Average age of these patients | 78 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)794 services
- Insertion of needle into vein for collection of blood sample (36415)770 services
- Blood test, comprehensive group of blood chemicals (80053)598 services
- Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (85025)587 services
- Blood test, lipids (cholesterol and triglycerides) (80061)563 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 cholesterol75%
- High blood pressure74%
- Chronic kidney disease59%
- Arthritis51%
- Ischemic heart disease25%
- Diabetes23%
Hospitals where Carleen Tylenda works
Medicare's Facility Affiliation Data lists Carleen Tylenda 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 Fairfax HospitalFalls Church, VA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 490063
- Inova Mount Vernon HospitalAlexandria, VA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 490122
- Virginia Hospital CenterArlington, VA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 490050
Practice locations
Addresses where Carleen Tylenda is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 6; the Medicare profile lists all.
- 7764 Armistead Rd, Suite 240Lorton, VA 22079 (703) 780‑2800
- 8109 Hinson Farm Rd, Suite 504Alexandria, VA 22306 (703) 780‑2800
- 9455 Lorton Market St, Suite 100Lorton, VA 22079 (703) 780‑2800
- 9470 Annapolis Rd, Suite 309Lanham, MD 20706 (202) 832‑1800
- 950 N Glebe Rd, Suite 700Arlington, VA 22203
Group practices
Medicare enrollment lists Carleen Tylenda as a member of these groups (CMS data updated October 2, 2026).
- Legacy Healthcare Services Inc3,223 clinicians in the group
- Privia Medical Group, LLC1,533 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Lorton
Clinicians with the same Medicare primary specialty in Lorton, VA — not a recommendation.
Other clinicians in Legacy Healthcare Services Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Georgetown University School Of Medicine |
| Graduation year | 1981 (45 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1750343547 |
| 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