1. Home
  2. Directory
  3. New Hampshire
  4. Portsmouth
  5. Internal Medicine
  6. NPI Profile

SEACOAST KIDNEY & HYPERTENSION SPECIALISTS, P.L.L.C.
NPI 1780877902
Internal Medicine - Nephrology in Portsmouth, NH

Active since August 21, 2007CLIA Certified · 3 labs
875 GREENLAND RD, BUILDING C-UNIT 10, PORTSMOUTH, NH 03801(603) 436-3433(603) 427-5115 Get Directions Write a Review

NPPES record last updated: April 12, 2017. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Seacoast Kidney & Hypertension Specialists, P.l.l.c. NPPES

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

SEACOAST KIDNEY & HYPERTENSION SPECIALISTS, P.L.L.C. (NPI 1780877902) is a healthcare organization registered as a nephrology in Portsmouth, New Hampshire and active in the NPI registry since August 2007. The organization holds 3 active CLIA laboratory certificates and lists Karen Torr, Practice Manager, as its authorized official.

NPPES Registry Identity

NPI1780877902
Entity TypeOrganization
Primary Taxonomy207RN0300X
Legal Business NameSEACOAST KIDNEY & HYPERTENSION SPECIALISTS, P.L.L.C.
Location Address875 GREENLAND RD, BUILDING C-UNIT 10Portsmouth, NH 03801-4164
Mailing Address875 Greenland Road, Building C-unit 10Portsmouth, NH 03801-4174 · (603) 436-3433 · Fax (603) 427-5115
Phone(603) 436-3433
Fax(603) 427-5115
Organization SubpartNo
Authorized OfficialKaren TorrPractice Manager · (603) 436-3433
Enumeration DateAugust 21, 2007
Last NPPES UpdateApril 12, 2017
✔ NPI 1780877902 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
Definition
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.
875 GREENLAND RD, Portsmouth, NH 03801
Open in Google Maps ↗

Other Identifiers 5

Medicaid30211568NH
Medicare PIN003613NH
Other2655384NH · Aetna
Medicaid143130000ME
Medicare PINCH9040NH

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 Anthem Blue Cross and Blue Shield, WellSense Health Plan.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)

Seacoast Kidney & Hypertension Specialists, P.l.l.c. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

7

Medicare enrollment records show 7 clinicians reassign Medicare billing to Seacoast Kidney & Hypertension Specialists, P.L.L.C., which bills Medicare for the services they deliver. Of these, 2 practice at this address and 7 within 10 miles. They are listed nearest first.

Clinicians, nearest first (7)

Michael Danielski, M.D.
Internal Medicine
NPI 1114918984
875 GREENLAND RD #C-10
Portsmouth, NH 03801
(603) 436-3433
✔ PECOS✔ Accepts MedicareSame address
Sucharit Joshi, M.D.
Nephrology
NPI 1114045184
875 GREENLAND RD #C-10
Portsmouth, NH 03801
(603) 436-3433
✔ PECOS✔ Accepts MedicareSame address
Satyaki Chakrabarty, MD
Internal Medicine
NPI 1457846891
875 GREENLAND RD UNIT 10
Portsmouth, NH 03801
(603) 766-3174
✔ PECOS✔ Accepts Medicare0.1 mi
Shiv Kumar, MD
Nephrology
NPI 1326076555
875 GREENLAND RD BUILDING C-UNIT 10
Portsmouth, NH 03801
(603) 422-6719
✔ PECOS✔ Accepts Medicare0.1 mi
Naresh Matta, M.D.
Nephrology
NPI 1801850367
875 GREENLAND RD #C-10
Portsmouth, NH 03801
(603) 436-3433
✔ PECOS✔ Accepts Medicare0.1 mi
Denise Prisby, ARNP
Nurse Practitioner
NPI 1497125389
875 GREENLAND RD BUILDING C-UNIT 10
Portsmouth, NH 03801
(603) 436-3433
✔ PECOS✔ Accepts Medicare0.1 mi
Kulli Barrett, M.D.
Nephrology
NPI 1437140209
330 BORTHWICK AVE SUITE 100
Portsmouth, NH 03801
(603) 436-3433
✔ PECOS✔ Accepts Medicare0.7 mi

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 3

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 for Provider-Performed Microscopy Procedures (PPMP) 30D1076246

Seacoast Kidney & Hypertension Specialists, PLLC · Rochester, NH
Active · expires Nov 7, 2027
CLIA Number30D1076246
Laboratory TypePhysician Office
Certificate Effective DateNovember 8, 2025
Certificate Expiration DateNovember 7, 2027
Laboratory DirectorMichael C. Danielski, MD
Laboratory Phone(603) 436-3433
Laboratory LocationSeacoast Kidney & Hypertension Specialists, PLLC21 Whitehall Rd, Ste 202, Rochester, NH 03867
CLIA data matches this NPI record on: Name Phone
This certificate is issued to a laboratory in which a physician, midlevel practitioner or dentist performs no tests other than the microscopy procedures. This certificate permits the laboratory to also perform waived tests.

Certificate for Provider-Performed Microscopy Procedures (PPMP) 30D1076248

Seacoast Kidney & Hypertension Specialists, PLLC · Exeter, NH
Active · expires Nov 7, 2027
CLIA Number30D1076248
Laboratory TypePhysician Office
Certificate Effective DateNovember 8, 2025
Certificate Expiration DateNovember 7, 2027
Laboratory DirectorNaresh V. Matta MD
Laboratory Phone(603) 436-3433
Laboratory LocationSeacoast Kidney & Hypertension Specialists, PLLC1 Hampton Rd, Ste 109, Exeter, NH 03833
CLIA data matches this NPI record on: Name Phone
This certificate is issued to a laboratory in which a physician, midlevel practitioner or dentist performs no tests other than the microscopy procedures. This certificate permits the laboratory to also perform waived tests.

Certificate for Provider-Performed Microscopy Procedures (PPMP) 30D1076250

Seacoast Kidney & Hypertension Specialists, PLLC · Portsmouth, NH
Active · expires Nov 7, 2027
CLIA Number30D1076250
Laboratory TypePhysician Office
Certificate Effective DateNovember 8, 2025
Certificate Expiration DateNovember 7, 2027
Laboratory DirectorKulli Barrett MD
Laboratory Phone(603) 436-3433
Laboratory LocationSeacoast Kidney & Hypertension Specialists, PLLC875 Greenland Ave, Unit C 10, Portsmouth, NH 03801
CLIA data matches this NPI record on: Name Phone
This certificate is issued to a laboratory in which a physician, midlevel practitioner or dentist performs no tests other than the microscopy procedures. This certificate permits the laboratory to also perform 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 Seacoast Kidney & Hypertension Specialists, P.L.L.C.'s NPI number?

The NPI number for Seacoast Kidney & Hypertension Specialists, P.L.L.C. is 1780877902. It was assigned to this organization in the NPPES registry on August 21, 2007.

Where is Seacoast Kidney & Hypertension Specialists, P.L.L.C. located?

Seacoast Kidney & Hypertension Specialists, P.L.L.C. is located at 875 Greenland Rd Building C-Unit 10, Portsmouth, NH 03801. The listed phone number is (603) 436-3433.

What is Seacoast Kidney & Hypertension Specialists, P.L.L.C.'s specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is Seacoast Kidney & Hypertension Specialists, P.L.L.C. enrolled in Medicare?

Yes. Seacoast Kidney & Hypertension Specialists, P.L.L.C. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Seacoast Kidney & Hypertension Specialists, P.L.L.C.?

According to the CMS Revalidation Reassignment List (October 2026 release), 7 clinicians in 3 Medicare specialties reassign their Medicare billing to Seacoast Kidney & Hypertension Specialists, P.L.L.C.. 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. The largest specialties are Nephrology (4), Internal Medicine (2) and Nurse Practitioner (1). Of these, 2 practice at this address and 7 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Seacoast Kidney & Hypertension Specialists, P.L.L.C. hold CLIA laboratory certificates?

Yes. 3 active CLIA laboratory certificates are associated with this NPI under the federal Clinical Laboratory Improvement Amendments program. The certificates are listed in the CLIA Laboratory Certificates section above.

What insurance does Seacoast Kidney & Hypertension Specialists, P.L.L.C. accept?

Health plans from Anthem Blue Cross and Blue Shield and WellSense Health Plan list Seacoast Kidney & Hypertension Specialists, P.L.L.C. 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 Seacoast Kidney & Hypertension Specialists, P.L.L.C. was last updated on April 12, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.