Quick answers
- Does Christina F. Ortiz accept Medicare assignment?
- Yes. Medicare's clinician data says Christina F. Ortiz 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 Christina F. Ortiz see?
- In 2024, CMS data shows 149 Original Medicare patients and 3,210 services for Christina F. Ortiz. This counts Original Medicare only and measures volume, not quality.
- What is Christina F. Ortiz's NPI number?
- 1629335641. 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 Christina F. Ortiz, 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 | 149 |
|---|---|
| Services billed to Medicare | 3,210 |
| Different services or procedures | 19 |
| Participating Medicare provider | Yes |
| Average age of these patients | 71 |
Most frequent services
- Professional service for preparation and provision of 1 or more antigens (95165)1,280 services
- Professional service for multiple injections of allergen (95117)682 services
- Test for allergy using allergenic extract (95004)616 services
- Test for allergy using allergenic extract injected into skin (95024)249 services
- Professional service for single injection of allergen (95115)122 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 pressure71%
- Arthritis52%
- Asthma48%
- Anxiety31%
- Diabetes28%
Hospitals where Christina F. Ortiz works
Medicare's Facility Affiliation Data lists Christina F. Ortiz 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.
- Sentara Norfolk General HospitalNorfolk, VA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 490007
Practice locations
Addresses where Christina F. Ortiz is enrolled with Medicare (CMS data updated October 2, 2026).
- 101 A York CrossingGrafton, VA 23692 (757) 898‑7737
- 733 Volvo Pkwy, Suite 220Chesapeake, VA 23320 (757) 410‑0981
Group practices
Medicare enrollment lists Christina F. Ortiz as a member of this group (CMS data updated October 2, 2026).
- Tidewater Physicians Multispecialty Group, PC261 clinicians in the group
Specialties
- Allergy/Immunologyprimary
Other allergist and immunologists in Virginia
Clinicians with the same Medicare primary specialty in Virginia — not a recommendation.
Other clinicians in Tidewater Physicians Multispecialty Group, PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Medical school | Eastern Virginia Medical School |
|---|---|
| Graduation year | 2012 (14 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) | 1629335641 |
| 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