ST MARYS INTERNAL MEDICINE PC
NPI 1194270413
Internal Medicine in Peabody, MA

Q: What is St Marys Internal Medicine PC's NPI number?

The NPI number for St Marys Internal Medicine PC is 1194270413. It was assigned to this organization in the NPPES registry on August 16, 2016.

Q: What is St Marys Internal Medicine PC's specialty?

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

Active since August 16, 2016CLIA 22D2120876 · Waiver

6 ESSEX CENTER DR, SUITE 304, PEABODY, MA 01960(978) 854-6376 Get Directions Write a Review

NPPES record last updated: February 2, 2017. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Feb 2, 2017, Jan 10, 2017, Sep 2, 2016 and 1 more (4 updates tracked since 2016).

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About St Marys Internal Medicine Pc NPPES

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

ST MARYS INTERNAL MEDICINE PC (NPI 1194270413) is a healthcare organization registered as an internal medicine in Peabody, Massachusetts and active in the NPI registry since August 2016. The organization holds a CLIA Waiver certificate valid through October 25, 2028 and lists Sungsik Hahn, President, as its authorized official.

NPPES Registry Identity

NPI1194270413

Entity TypeOrganization

Primary Taxonomy207R00000X

Legal Business NameST MARYS INTERNAL MEDICINE PC

Location Address6 ESSEX CENTER DR, SUITE 304Peabody, MA 01960-2904

Mailing Address6 Essex Center Dr, Suite 304Peabody, MA 01960-2904 · (978) 854-6376

Phone(978) 854-6376

Organization SubpartNo

Authorized OfficialSungsik HahnPresident · (508) 265-3975

Enumeration DateAugust 16, 2016

Last NPPES UpdateFebruary 2, 20174 updates tracked since enumeration

✔ NPI 1194270413 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ 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.

Also ListedClinic/Center · Primary CareTaxonomy 261QP2300X · License 236055 (MA)

6 ESSEX CENTER DR, Peabody, MA 01960

Open in Google Maps ↗

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.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)

St Marys Internal Medicine Pc 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 St Marys Internal Medicine PC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Linus Hahn, M.D.

Internal Medicine

NPI 1609067917

6 ESSEX CENTER DR STE 304
Peabody, MA 01960

(978) 854-6376

✔ PECOS✔ Accepts Medicare0.1 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

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 22D2120876

St Mary's Internal Medicine · Peabody, MA

Active · expires Oct 25, 2028

CLIA Number22D2120876

Laboratory TypePhysician Office

Certificate Effective DateOctober 26, 2026

Certificate Expiration DateOctober 25, 2028

Laboratory DirectorLinus Sungsik Hahn

Laboratory Phone(978) 854-6376

Laboratory LocationSt Mary's Internal Medicine6 Essex Center Drive Ste 304, Peabody, MA 01960

CLIA data matches this NPI record on: Address 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 St Marys Internal Medicine PC's NPI number?

The NPI number for St Marys Internal Medicine PC is 1194270413. It was assigned to this organization in the NPPES registry on August 16, 2016.

Where is St Marys Internal Medicine PC located?

St Marys Internal Medicine PC is located at 6 Essex Center Dr Suite 304, Peabody, MA 01960. The listed phone number is (978) 854-6376.

What is St Marys Internal Medicine PC's specialty?

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

Is St Marys Internal Medicine PC enrolled in Medicare?

Yes. St Marys Internal Medicine PC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through St Marys Internal Medicine PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to St Marys Internal Medicine PC. 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 St Marys Internal Medicine PC hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 22D2120876) is associated with this NPI, valid through October 25, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

What insurance does St Marys Internal Medicine PC accept?

Health plans from Anthem Blue Cross and Blue Shield list St Marys Internal Medicine PC 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 St Marys Internal Medicine PC was last updated on February 2, 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.