Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Susannah J. Clark, PA-C

Physician Assistant in Lowell, MA · enumerated 2010 · practices at Riverside Surgical Associates, PC.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1770805202

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Registry record

Entity type Individual (Type 1)

Name Susannah J. Clark

Credential PA-C

Sex Female

Practice address 275 Varnum Ave Ste 203, Lowell, MA, 01854

Phone (978) 458-4300

Fax (978) 458-4311

Enumeration date Feb 25, 2010

Last updated in NPPES Mar 7, 2025

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA3930 (MA) Primary

Other identifiers

Identifier	Type	State	Issuer
110121498A	Medicaid	MA	-

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify Susannah Clark's NPI record?

Cross-check NPI 1770805202 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1770805202 active?

Yes, as of the latest NPPES snapshot, NPI 1770805202 is active (record last updated 2025-03-07).

Other providers at this practice address

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Michael Jiser Surgery Physician · Lowell, MA NPI 1952386005 Richard Rohrer Surgery Physician · Lowell, MA NPI 1558316901 Wassim Mazraany Surgery Physician · Lowell, MA NPI 1700952314 Ilan Yavitz Zincof Critical Care Medicine (Internal Medicine) Physician · Lowell, MA NPI 1598942187 Jana Simonds Surgery Physician · Lowell, MA NPI 1801023601 Gwendolyn Morrow Obstetrics & Gynecology Nurse Practitioner · Lowell, MA NPI 1053626044 Lerna Ozcan Surgery Physician · Lowell, MA NPI 1558654707 Riverside Surgical Associates, PC Surgery Physician · Lowell, MA NPI 1538405378

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-03-07.