Mark K. Semanski
- Gender: Male
- Sole propriator: No
- NPI: 1659862357
Mark K. Semanski PA-C
Physician Assistant
He is located at 4755 Ogletown Stanton Road in Newark, DE 19718. His National Provider Identifier (NPI) number is 1659862357. Appointment can be made via the phone number (302) 733-2475. He is affiliated with 1 practices.
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Mark K. Semanski as in-network for the following 2026 plans.
Health plans
AmeriHealth Caritas Next
Network data as of Sep 11, 2026, as reported by the insurer.
Show all 8 plans from AmeriHealth Caritas Next
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| AmeriHealth Caritas Next Bronze Essential + No Referrals | HMO · Bronze | Preferred | Accepting new patients |
| AmeriHealth Caritas Next Bronze Premier + No Referrals | HMO · Expanded Bronze | Preferred | Accepting new patients |
| AmeriHealth Caritas Next Bronze Signature + No Referrals | HMO · Expanded Bronze | Preferred | Accepting new patients |
| AmeriHealth Caritas Next Gold Premier + No Referrals | HMO · Gold | Preferred | Accepting new patients |
| AmeriHealth Caritas Next Gold Signature + No Referrals | HMO · Gold | Preferred | Accepting new patients |
| AmeriHealth Caritas Next Silver Essential + No Referrals | HMO · Silver | Preferred | Accepting new patients |
| AmeriHealth Caritas Next Silver Premier + No Referrals | HMO · Silver | Preferred | Accepting new patients |
| AmeriHealth Caritas Next Silver Signature + No Referrals | HMO · Silver | Preferred | Accepting new patients |
This covers ACA Marketplace plans only, as reported by each insurer. It does not include employer, Medicare Advantage, or state-run exchange plans, and a plan missing from this list does not mean Mark K. Semanski is out of network. Insurer directories can be out of date, so always confirm with the insurer and the office before your visit.
Medicare Enrollment
Mark K. Semanski is enrolled to bill Medicare as a Practitioner - Physician Assistant .
Bills through: Christiana Care Health Services Inc
Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.
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- Address: Suite 2670 4755 Ogletown Stanton Road Newark, 19718, DE
- Gender: Female
- Address: 4755 Ogletown Stanton Road Newark, 19718, DE
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- Address: Suite 5A43 4755 Ogletown Stanton Road Newark, 19718, DE
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- Address: Suite 2670 4755 Ogletown Stanton Road Newark, 19718, DE
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- Address: Suite 1900 4755 Ogletown Stanton Road Newark, 19718, DE
- Gender: Male
- Address: Suite 2670 4755 Ogletown Stanton Road Newark, 19718, DE
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- Address: FL 3 4755 Ogletown Stanton Road Newark, 19718, DE
- Gender: Female
- Address: 4755 Ogletown Stanton Road Newark, 19718, DE
Questions & Answers
Does Mark K. Semanski have affiliation with practices?
Mark K. Semanski is affiliated with Bayhealth Hospital, Sussex Campus.
Where can you meet with Mark K. Semanski?
Mark K. Semanski's office is located at 4755 Ogletown Stanton Road in Newark, DE 19718.
Does Mark K. Semanski accept insurance?
Mark K. Semanski is listed in-network for 8 ACA Marketplace (Obamacare/HealthCare.gov) plans from AmeriHealth Caritas Next. See the Marketplace plans section for details.