Provider networks in Delaware.
InPlan holds provider listings for 48 marketplace (ACA) and Medicare Advantage plans that serve Delaware. Ask whether a plan lists a provider and get the answer with its source type and the date we read the directory.
- MARKETPLACE PLANS
- 40
- MEDICARE ADVANTAGE PLANS
- 8
- INSURERS AND PLAN ORGANIZATIONS
- 5
- LATEST READ
- 2026-10-29
What we hold in Delaware.
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) | 40 | 3 | 2026 | 2026-10-29 |
| Medicare Advantage | 8 | 2 | 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 Delaware.
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 |
|---|---|---|
| Ambetter Health | Marketplace (ACA) | 17 |
| Highmark Blue Cross Blue Shield | Marketplace (ACA) | 15 |
| AmeriHealth Caritas Next | Marketplace (ACA) | 8 |
| Devoted Health | Medicare Advantage | 5 |
| HealthSpring | Medicare Advantage | 3 |
Who the Medicare Advantage directories list.
More than 3,900 providers who practise in Delaware appear in the Medicare Advantage plans we hold. The most common primary specialties among them:
- Nurse Practitioner467
- Clinical Social Worker271
- Family Practice251
- Internal Medicine224
- Mental Health Counselor217
- Physical Therapist in Private Practice169
- Chiropractic155
- Optometry132
Specialties as the national provider registries record them. A provider counts once per specialty.
Example plans in Delaware.
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 | H7849-146-000 | 2027 | Medicare AdvantagePPO | 373,995 |
| Principal Bronze HSAAmbetter Health of Delaware | 64004DE0090001 | 2026 | Marketplace (ACA)Expanded Bronze · EPO | 169,942 |
| HealthSpring Achieve (HMO C-SNP)HealthSpring | H2108-029-000 | 2027 | Medicare AdvantageHMO C-SNP · Special Needs Plan | 223,956 |
| HealthSpring Preferred (HMO)HealthSpring | H2108-046-000 | 2027 | Medicare AdvantageHMO | 196,399 |
| Everyday BronzeAmbetter Health of Delaware | 64004DE0090002 | 2026 | Marketplace (ACA)Expanded Bronze · EPO | 169,942 |
A real Delaware answer.
Venkatesh Sundararajan, MD, who practises in Middletown, is listed in 76168DE0690001. 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=1003022500&plan_id=76168DE0690001"
{
"npi": "1003022500",
"plan_id": "76168DE0690001",
"market": "aca",
"in_network": true,
"answer": "listed",
"plan_year": 2026,
"source": { "type": "insurer_directory", "as_of": "2026-07-27" }
}Venkatesh Sundararajan, MD
Pain Management · Middletown, DE
Listed
- PLAN
- my Blue Access Select PPO Bronze 3800
- INSURER
- Highmark Blue Cross Blue Shield Delaware
- MARKET
- Marketplace (ACA), plan year 2026
- PLAN TYPE
- Expanded Bronze · PPO
- NETWORK TIER
- IN-NETWORK
- SOURCE
- insurer_directory · read 2026-07-27
Every Delaware provider, with every plan that lists them.
The Delaware data file is one CSV: one row for each provider and plan pair, for every provider practising in Delaware, with the source type and read date on each row.
Check Delaware 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
- Florida
- Georgia
- Hawaii
- Idaho
- Illinois
- Indiana
- Iowa
- Kansas
- Kentucky
- Louisiana
- Maryland
- Massachusetts
- Michigan
- Minnesota
- Mississippi
- 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.