Quick answers
- Does Christine M. Longo accept Medicare assignment?
- Yes. Medicare's clinician data says Christine M. Longo 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 Christine M. Longo see?
- In 2024, CMS data shows 19 Original Medicare patients and 47 services for Christine M. Longo. This counts Original Medicare only and measures volume, not quality.
- What is Christine M. Longo's NPI number?
- 1013437268. 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 Christine M. Longo, 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 | 19 |
|---|---|
| Services billed to Medicare | 47 |
| Different services or procedures | 15 |
| Participating Medicare provider | Yes |
| Average age of these patients | 69 |
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 cholesterol74%
- High blood pressure58%
Practice locations
Addresses where Christine M. Longo is enrolled with Medicare (CMS data updated October 2, 2026).
- 1001 G St NW, Suite 200eWashington, DC 20001 (202) 660‑0005
- 2987 District Ave, Suite 120Fairfax, VA 22031 (202) 627‑1904
- 601 New Jersey Ave NW, Suite 200Washington, DC 20001 (202) 660‑0005
Group practices
Medicare enrollment lists Christine M. Longo as a member of this group (CMS data updated October 2, 2026).
- One MedStar Primary Care LLC140 clinicians in the group
Specialties
- Family Practiceprimary
Find other Family Practice doctors in District of Columbia →
Other family doctors in Washington
Clinicians with the same Medicare primary specialty in Washington, DC — not a recommendation.
Other clinicians in One MedStar Primary Care LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | University Of New England, College Of Osteo Medicine |
| Graduation year | 2017 (9 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) | 1013437268 |
| 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 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