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SEASIDE HEALTH LLC
NPI 1225816721
Internal Medicine in Lewes, DE

Active since September 18, 2023CLIA 08D2290656 · Waiver
750 KINGS HWY STE 103, LEWES, DE 19958(302) 550-8100(302) 550-8105 Get Directions Write a Review

NPPES record last updated: September 18, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Seaside Health Llc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

SEASIDE HEALTH LLC (NPI 1225816721) is a healthcare organization registered as an internal medicine in Lewes, Delaware and active in the NPI registry since September 2023. The organization holds a CLIA Waiver certificate valid through September 27, 2027 and lists Monique R Yost, Physician/owner, as its authorized official.

NPPES Registry Identity

NPI1225816721
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameSEASIDE HEALTH LLC
Location Address750 KINGS HWY STE 103Lewes, DE 19958-1772
Mailing Address750 Kings Hwy Ste 103Lewes, DE 19958-1772 · (302) 550-8100 · Fax (302) 550-8105
Phone(302) 550-8100
Fax(302) 550-8105
Organization SubpartNo
Authorized OfficialMonique R YostPhysician/owner · (302) 550-8100
Enumeration DateSeptember 18, 2023
NPPES CertifiedSeptember 18, 2023
✔ NPI 1225816721 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
750 KINGS HWY STE 103, Lewes, DE 19958
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Highmark Blue Cross Blue Shield Delaware.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Seaside Health Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Seaside Health LLC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Monique Yost, M.D.
Internal Medicine
NPI 1770511685
750 KINGS HWY STE 103
Lewes, DE 19958
(302) 550-8100
✔ PECOS✔ Accepts MedicareSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 08D2290656

Seaside Health · Lewes, DE
Active · expires Sep 27, 2027
CLIA Number08D2290656
Laboratory TypePhysician Office
Certificate Effective DateSeptember 28, 2025
Certificate Expiration DateSeptember 27, 2027
Laboratory DirectorChastity Irvin
Laboratory Phone(302) 550-8100
Laboratory LocationSeaside Health750 Kings Hwy Ste 103, Lewes, DE 19958
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Seaside Health LLC's NPI number?

The NPI number for Seaside Health LLC is 1225816721. It was assigned to this organization in the NPPES registry on September 18, 2023.

Where is Seaside Health LLC located?

Seaside Health LLC is located at 750 Kings Hwy Ste 103, Lewes, DE 19958. The listed phone number is (302) 550-8100.

What is Seaside Health LLC's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Seaside Health LLC enrolled in Medicare?

Yes. Seaside Health LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Seaside Health LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Seaside Health LLC. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Seaside Health LLC hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 08D2290656) is associated with this NPI, valid through September 27, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

What insurance does Seaside Health LLC accept?

Health plans from Highmark Blue Cross Blue Shield Delaware list Seaside Health LLC as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Seaside Health LLC was last updated on September 18, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.