Provider networks in Maryland.
InPlan holds provider listings for 13 Medicare Advantage plans that serve Maryland. Ask whether a plan lists a provider and get the answer with its source type and the date we read the directory.
- MEDICARE ADVANTAGE PLANS
- 13
- PLAN YEARS
- 2027
- INSURERS AND PLAN ORGANIZATIONS
- 3
- LATEST READ
- 2026-10-29
What we hold in Maryland.
Plans whose provider directories list providers in our data.
| MARKET | PLANS | INSURERS | PLAN YEARS | LATEST READ |
|---|---|---|---|---|
| Medicare Advantage | 13 | 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 Maryland.
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 |
|---|---|---|
| Johns Hopkins Advantage MD | Medicare Advantage | 7 |
| HealthSpring | Medicare Advantage | 4 |
| KeyCare Advantage | Medicare Advantage | 2 |
Who the Medicare Advantage directories list.
More than 32,000 providers who practise in Maryland appear in the Medicare Advantage plans we hold. The most common primary specialties among them:
- Nurse Practitioner5,337
- Clinical Social Worker2,764
- Physician Assistant2,331
- Internal Medicine2,116
- Physical Therapist in Private Practice1,585
- Mental Health Counselor1,561
- Dentist1,495
- Family Practice1,085
Specialties as the national provider registries record them. A provider counts once per specialty.
Example plans in Maryland.
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 Courage (HMO)HealthSpring | H2108-045-000 | 2027 | Medicare AdvantageHMO | 196,399 |
| HealthSpring Preferred Plus (HMO)HealthSpring | H2108-022-000 | 2027 | Medicare AdvantageHMO | 157,488 |
| HealthSpring Achieve (HMO C-SNP)HealthSpring | H2108-030-000 | 2027 | Medicare AdvantageHMO C-SNP · Special Needs Plan | 157,488 |
| HealthSpring TotalCare Plus (HMO D-SNP)HealthSpring | H2108-041-000 | 2027 | Medicare AdvantageHMO D-SNP · Special Needs Plan | 157,460 |
| KeyCare Advantage (HMO I-SNP)KeyCare Advantage | H6959-001-000 | 2027 | Medicare AdvantageHMO I-SNP · Special Needs Plan | 13,276 |
A real Maryland answer.
Amy E. Tindell, LCS, who practises in Gaithersburg, is listed in H2108-045-000. 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=1003081738&plan_id=H2108-045-000"
{
"npi": "1003081738",
"plan_id": "H2108-045-000",
"market": "ma",
"in_network": true,
"answer": "listed",
"plan_year": 2027,
"source": { "type": "plan_directory", "as_of": "2026-10-29" }
}Amy E. Tindell, LCS
Clinical Social Worker · Gaithersburg, MD
Listed
- PLAN
- HealthSpring Courage (HMO)
- INSURER
- HealthSpring
- MARKET
- Medicare Advantage, plan year 2027
- PLAN TYPE
- HMO
- SOURCE
- plan_directory · read 2026-10-29
Every Maryland provider, with every plan that lists them.
The Maryland data file is one CSV: one row for each provider and plan pair, for every provider practising in Maryland, with the source type and read date on each row.
Check Maryland 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
- 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.