Quick answers
- Does Jennifer R. Santiago accept Medicare assignment?
- Yes. Medicare's clinician data says Jennifer R. Santiago 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 Jennifer R. Santiago see?
- In 2024, CMS data shows 142 Original Medicare patients and 222 services for Jennifer R. Santiago. This counts Original Medicare only and measures volume, not quality.
- What is Jennifer R. Santiago's NPI number?
- 1457437162. 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 Jennifer R. Santiago, 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 | 142 |
|---|---|
| Services billed to Medicare | 222 |
| Different services or procedures | 10 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)119 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)36 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)20 services
- Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory (Q0091)20 services
- Pelvic exam (99459)18 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 cholesterol74%
- High blood pressure51%
- Arthritis44%
- Osteoporosis25%
- Anxiety23%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)16%
Hospitals where Jennifer R. Santiago works
Medicare's Facility Affiliation Data lists Jennifer R. Santiago 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 Mount Vernon HospitalAlexandria, VA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 490122
- Sentara Northern Virginia Medical CenterWoodbridge, VA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 490113
Practice locations
Addresses where Jennifer R. Santiago is enrolled with Medicare (CMS data updated October 2, 2026).
- 6355 Walker LnAlexandria, VA 22310
- 9470 Annapolis Rd, Suite 309Lanham, MD 20706 (202) 832‑1800
- 950 N Glebe Rd, Suite 700Arlington, VA 22203
Group practices
Medicare enrollment lists Jennifer R. Santiago as a member of this group (CMS data updated October 2, 2026).
- Privia Medical Group, LLC1,533 clinicians in the group
Specialties
- Obstetrics/Gynecologyprimary
Other OB-GYNs in Alexandria
Clinicians with the same Medicare primary specialty in Alexandria, VA — not a recommendation.
Other clinicians in Privia Medical Group, LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Rutgers R W Johnson Medical School (cam/new Bruns/pisc) |
| Graduation year | 1999 (27 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1457437162 |
| 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