Provider networks in Mississippi.
InPlan holds provider listings for 76 marketplace (ACA) and Medicare Advantage plans that serve Mississippi. Ask whether a plan lists a provider and get the answer with its source type and the date we read the directory.
- MARKETPLACE PLANS
- 48
- MEDICARE ADVANTAGE PLANS
- 28
- INSURERS AND PLAN ORGANIZATIONS
- 8
- LATEST READ
- 2026-10-29
What we hold in Mississippi.
Plans whose provider directories list providers in our data. Together the marketplace plans hold more than 4.1 million provider-plan links.
| MARKET | PLANS | INSURERS | PLAN YEARS | LATEST READ |
|---|---|---|---|---|
| Marketplace (ACA) | 48 | 5 | 2026 | 2026-10-29 |
| Medicare Advantage | 28 | 3 | 2027 | 2026-10-29 |
How we count: a plan counts when its provider directory lists at least one provider in our data. A provider-plan link is one listing of one provider in one plan. For marketplace plans it counts each plan year and network tier the directory gives; for Medicare Advantage plans it counts each provider once per plan.
Insurers in Mississippi.
Plans with provider listings for each insurer or plan organization, as they publish their names. A Medicare Advantage plan counts in every state it serves.
| INSURER | MARKET | PLANS |
|---|---|---|
| UnitedHealthcare | Marketplace (ACA) | 15 |
| Ambetter Health | Marketplace (ACA) | 14 |
| Cigna Healthcare | Marketplace (ACA) | 10 |
| Oscar Health | Marketplace (ACA) | 7 |
| Molina Healthcare | Marketplace (ACA) | 2 |
| HealthSpring | Medicare Advantage | 12 |
| Devoted Health | Medicare Advantage | 10 |
| Zing Health | Medicare Advantage | 6 |
Who the Medicare Advantage directories list.
More than 6,700 providers who practise in Mississippi appear in the Medicare Advantage plans we hold. The most common primary specialties among them:
- Nurse Practitioner874
- Dentist519
- Family Practice466
- Internal Medicine388
- Optometry317
- Clinical Social Worker274
- Mental Health Counselor270
- Obstetrics/Gynecology230
Specialties as the national provider registries record them. A provider counts once per specialty.
Example plans in Mississippi.
Plans with the most provider-plan links, with the plan ID the API takes. Look any plan ID up for free with the plan ID lookup.
| PLAN | PLAN ID | YEAR | TYPE | PROVIDER-PLAN LINKS |
|---|---|---|---|---|
| HealthSpring True Choice (PPO)HealthSpring | H7849-135-000 | 2027 | Medicare AdvantagePPO | 373,995 |
| HealthSpring True Choice (PPO)HealthSpring | H7849-153-000 | 2027 | Medicare AdvantagePPO | 373,995 |
| Bronze Classic StandardOscar Health Plan, Inc. | 20635MS0010001 | 2026 | Marketplace (ACA)Expanded Bronze · HMO | 190,595 |
| HealthSpring True Choice (PPO)HealthSpring | H7849-144-000 | 2027 | Medicare AdvantagePPO | 373,995 |
| HealthSpring Preferred (HMO)HealthSpring | H4513-049-004 | 2027 | Medicare AdvantageHMO | 217,973 |
A real Mississippi answer.
Lamar Davis II, MD, who practises in Jackson, is listed in 20635MS0010001. This is the answer the API gives today for that pair, with its source type and the date we read the listing.
curl -H "Authorization: Bearer $INPLAN_KEY" \ "https://api.inplan.io/v1/check?npi=1003006206&plan_id=20635MS0010001"
{
"npi": "1003006206",
"plan_id": "20635MS0010001",
"market": "aca",
"in_network": true,
"answer": "listed",
"plan_year": 2026,
"source": { "type": "insurer_directory", "as_of": "2026-10-29" }
}Lamar Davis II, MD
Neurology · Jackson, MS
Listed
- PLAN
- Bronze Classic Standard
- INSURER
- Oscar Health Plan, Inc.
- MARKET
- Marketplace (ACA), plan year 2026
- PLAN TYPE
- Expanded Bronze · HMO
- NETWORK TIER
- PREFERRED
- SOURCE
- insurer_directory · read 2026-10-29
Every Mississippi provider, with every plan that lists them.
The Mississippi data file is one CSV: one row for each provider and plan pair, for every provider practising in Mississippi, with the source type and read date on each row.
Check Mississippi providers in your own product.
Send an NPI and a plan ID, get an answer with its evidence. Or ask for every plan that lists a provider. A free key gives 500 calls a month.
Other states
- Alabama
- Alaska
- Arizona
- Arkansas
- California
- Colorado
- Connecticut
- Delaware
- Florida
- Georgia
- Hawaii
- Idaho
- Illinois
- Indiana
- Iowa
- Kansas
- Kentucky
- Louisiana
- Maryland
- Massachusetts
- Michigan
- Minnesota
- Missouri
- Montana
- Nebraska
- Nevada
- New Hampshire
- New Jersey
- New Mexico
- New York
- North Carolina
- North Dakota
- Ohio
- Oklahoma
- Oregon
- Pennsylvania
- Puerto Rico
- South Carolina
- South Dakota
- Tennessee
- Texas
- Utah
- Virginia
- Washington
- West Virginia
- Wisconsin
- Wyoming
Figures counted 2026-10-30. Sources: provider directories published by insurers and plans; public plan and provider registries. InPlan is independent and not affiliated with any insurer named here.