Quick answers
- Does Tina M. Gregg accept Medicare assignment?
- Yes. Medicare's clinician data says Tina M. Gregg 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 Tina M. Gregg see?
- In 2024, CMS data shows 278 Original Medicare patients and 1,939 services for Tina M. Gregg. This counts Original Medicare only and measures volume, not quality.
- What is Tina M. Gregg's NPI number?
- 1649463050. 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 Tina M. Gregg, 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 | 278 |
|---|---|
| Services billed to Medicare | 1,939 |
| Different services or procedures | 38 |
| Participating Medicare provider | Yes |
| Average age of these patients | 71 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)338 services
- Liver function blood test panel (80076)154 services
- Blood test, comprehensive group of blood chemicals (80053)142 services
- Complete blood cell count (red cells, white blood cell, platelets), automated test (85027)130 services
- Limited ultrasound scan of abdomen (76705)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 blood pressure75%
- High cholesterol70%
- Arthritis51%
- Diabetes44%
- Ischemic heart disease26%
- Anxiety22%
Hospitals where Tina M. Gregg works
Medicare's Facility Affiliation Data lists Tina M. Gregg 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.
- St Dominic-Jackson Memorial HospitalJackson, MS · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 250048
Practice locations
Addresses where Tina M. Gregg is enrolled with Medicare (CMS data updated October 2, 2026).
- 2510 Lakeland DrFlowood, MS 39232
Group practices
Medicare enrollment lists Tina M. Gregg as a member of this group (CMS data updated October 2, 2026).
- Gastrointestinal Associates PA46 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Flowood
Clinicians with the same Medicare primary specialty in Flowood, MS — not a recommendation.
Other clinicians in Gastrointestinal Associates PA
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2007 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1649463050 |
| 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