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SEACOAST INTERVENTIONAL RADIOLOGY ASSOCIATES PLLC
NPI 1700759388
Radiology - Vascular & Interventional Radiology in Portsmouth, NH

Active since September 29, 2025
333 BORTHWICK AVE STE 100, PORTSMOUTH, NH 03801(603) 436-5110 Get Directions Write a Review

NPPES record last updated: October 10, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Seacoast Interventional Radiology Associates Pllc NPPES

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

SEACOAST INTERVENTIONAL RADIOLOGY ASSOCIATES PLLC (NPI 1700759388) is a healthcare organization registered as a vascular & interventional radiology in Portsmouth, New Hampshire and active in the NPI registry since September 2025. The organization maintains 2 additional practice locations and lists David C Stevens, Manager, as its authorized official.

NPPES Registry Identity

NPI1700759388
Entity TypeOrganization
Primary Taxonomy2085R0204X
Legal Business NameSEACOAST INTERVENTIONAL RADIOLOGY ASSOCIATES PLLC
Location Address333 BORTHWICK AVE STE 100Portsmouth, NH 03801-4198
Mailing Address333 Borthwick AvePortsmouth, NH 03801-7128
Phone(603) 436-5110
Organization SubpartNo
Authorized OfficialDavid C StevensManager · (603) 605-4033
Enumeration DateSeptember 29, 2025
Last NPPES UpdateOctober 10, 2025
NPPES CertifiedOctober 10, 2025
✔ NPI 1700759388 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Vascular & Interventional RadiologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0204X
Definition
A radiologist who diagnoses and treats diseases by various radiologic imaging modalities. These include fluoroscopy, digital radiography, computed tomography, sonography and magnetic resonance imaging.
333 BORTHWICK AVE STE 100, Portsmouth, NH 03801
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Secondary Practice Locations 2

Location 111 Whitehall RdRochester, NH 03867-3297 · Phone (603) 332-5211
Location 21 Parkland DrDerry, NH 03038-2746 · Phone (603) 432-1500

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

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Seacoast Interventional Radiology Associates Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

3

Medicare enrollment records show 3 clinicians reassign Medicare billing to Seacoast Interventional Radiology Associates PLLC, which bills Medicare for the services they deliver. Of these, 1 practice at this address. They are listed nearest first.

Clinicians, nearest first (3)

David Stevens, M.D.
Diagnostic Radiology
NPI 1316204878
333 BORTHWICK AVE
Portsmouth, NH 03801
(207) 784-2554
✔ PECOS✔ Accepts MedicareSame address
Mark Mangano, M.D.
Diagnostic Radiology
NPI 1386909000
55 FRUIT ST FND 216
Boston, MA 02114
(617) 724-4255
✔ PECOS✔ Accepts Medicare50 mi
Andrew Marshall, M.D.
Diagnostic Radiology
NPI 1386055713
1430 TULANE AVE SL-50
New Orleans, LA 70112
(504) 988-7809
✔ PECOS✔ Accepts Medicare1,397 mi

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

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 Seacoast Interventional Radiology Associates PLLC's NPI number?

The NPI number for Seacoast Interventional Radiology Associates PLLC is 1700759388. It was assigned to this organization in the NPPES registry on September 29, 2025.

Where is Seacoast Interventional Radiology Associates PLLC located?

Seacoast Interventional Radiology Associates PLLC is located at 333 Borthwick Ave Ste 100, Portsmouth, NH 03801. The listed phone number is (603) 436-5110.

What is Seacoast Interventional Radiology Associates PLLC's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Vascular & Interventional Radiology, with taxonomy code 2085R0204X.

Is Seacoast Interventional Radiology Associates PLLC enrolled in Medicare?

Yes. Seacoast Interventional Radiology Associates PLLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Seacoast Interventional Radiology Associates PLLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 3 clinicians, all in Diagnostic Radiology, reassign their Medicare billing to Seacoast Interventional Radiology Associates PLLC. 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. Of these, 1 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Seacoast Interventional Radiology Associates PLLC was last updated on October 10, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months 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.