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GENERAL HOSPITAL CORP
NPI 1710070313
Clinic/Center - Health Service in Waltham, MA

Active since October 02, 2006CLIA Certified · 4 labs
52 SECOND AVE FL 4, WALTHAM, MA 02451(781) 487-4390(781) 487-4391 Get Directions Write a Review

NPPES record last updated: August 31, 2022. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Aug 31, 2022, Jan 15, 2016 (2 updates tracked since 2016).

About General Hospital Corp NPPES

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

GENERAL HOSPITAL CORP (NPI 1710070313) is a healthcare organization registered as a health service in Waltham, Massachusetts and active in the NPI registry since October 2006. The organization holds 4 active CLIA laboratory certificates and lists Sally Mason Boemer, Evp Of Administration & Finance, as its authorized official.

NPPES Registry Identity

NPI1710070313
Entity TypeOrganization
Primary Taxonomy261QH0100X
Legal Business NameMASS GENERAL WALTHAM
Location Address52 SECOND AVE FL 4Waltham, MA 02451-1127
Mailing Address55 Fruit St, Grb05-attention Karen RyleBoston, MA 02114-2621 · (781) 487-4390 · Fax (781) 487-4391
Phone(781) 487-4390
Fax(781) 487-4391
Organization SubpartYesParent: The General Hospital Corporation
Authorized OfficialSally Mason BoemerEvp Of Administration & Finance · (617) 724-4537
Enumeration DateOctober 2, 2006
Last NPPES UpdateAugust 31, 20222 updates tracked since enumeration
NPPES CertifiedAugust 31, 2022
✔ NPI 1710070313 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/Center · Health ServiceAmbulatory Health Care Facilities
Taxonomy Code261QH0100X
License✔ Licensed in MA · MA0049076
52 SECOND AVE FL 4, Waltham, MA 02451
Open in Google Maps ↗

Other Names 1

Doing Business AsGeneral Hospital Corp

Other Identifiers 1

Medicaid0447641MA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Medica, Moda Health Plan, Inc..Insurance ›

CLIA Laboratory Certificates CMS CLIA 5

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 Accreditation 22D2096202

Mass General Waltham Laboratory · Waltham, MA
Active · expires Feb 15, 2028
CLIA Number22D2096202
Laboratory TypeHospital
Certificate Effective DateFebruary 16, 2026
Certificate Expiration DateFebruary 15, 2028
Laboratory DirectorAbner Louissaint
Laboratory Phone(617) 726-8887
Laboratory LocationMass General Waltham Laboratory52 Second Avenue Ste 1110, Waltham, MA 02451
CLIA data matches this NPI record on: Name
This is a certificate that is issued to a laboratory on the basis of the laboratory's accreditation by an accreditation organization approved by CMS.

Certificate of Waiver 22D2002363

Mass General Waltham Imaging · Waltham, MA
Active · expires Jan 13, 2028
CLIA Number22D2002363
Laboratory TypeAncillary Testing Site In Health Care Center
Certificate Effective DateJanuary 14, 2026
Certificate Expiration DateJanuary 13, 2028
Laboratory DirectorWilliam Mehan
Laboratory Phone(781) 487-6149
Laboratory LocationMass General Waltham Imaging52 Second Avenue Suite 140, Waltham, MA 02451
CLIA data matches this NPI record on: Name
This certificate is issued to a laboratory to perform only waived tests.

Certificate of Waiver 22D0910050

Mass General Waltham Internal Medicine · Waltham, MA
Active · expires Aug 5, 2027
CLIA Number22D0910050
Laboratory TypePhysician Office
Certificate Effective DateAugust 6, 2025
Certificate Expiration DateAugust 5, 2027
Laboratory DirectorChristina W. Gevel
Laboratory Phone(781) 487-4350
Laboratory LocationMass General Waltham Internal Medicine52 Second Ave, Suite 400, Waltham, MA 02451
CLIA data matches this NPI record on: Name
This certificate is issued to a laboratory to perform only waived tests.

Certificate of Waiver 22D2315459

Mass General Waltham Pft Lab · Waltham, MA
Active · expires Dec 11, 2026
CLIA Number22D2315459
Laboratory TypePhysician Office
Certificate Effective DateDecember 12, 2024
Certificate Expiration DateDecember 11, 2026
Laboratory DirectorEric Peter Schmidt
Laboratory Phone(617) 643-8692
Laboratory LocationMass General Waltham Pft Lab52 Second Ave., Blue Bldg, 3rd Fl, Suite 3100, Waltham, MA 02451
CLIA data matches this NPI record on: Name
This certificate is issued to a laboratory to perform only waived tests.

Certificate for Provider-Performed Microscopy Procedures (PPMP) 22D2045051

Mass General Waltham Primary Care Associates · Waltham, MA
Expired · Aug 5, 2026
CLIA Number22D2045051
Laboratory TypeAncillary Testing Site In Health Care Center
Certificate Effective DateAugust 6, 2024
Certificate Expiration DateAugust 5, 2026
Laboratory DirectorSunu S. Yeh
Laboratory Phone(781) 487-4040
Laboratory LocationMass General Waltham Primary Care Associates52 Second Avenue Suite 2000, Waltham, MA 02451
CLIA data matches this NPI record on: Name
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 Mass General Waltham's NPI number?

The NPI number for Mass General Waltham is 1710070313. It was assigned to this organization in the NPPES registry on October 2, 2006. The provider is doing business as General Hospital Corp.

Where is Mass General Waltham located?

Mass General Waltham is located at 52 Second Ave Fl 4, Waltham, MA 02451. The listed phone number is (781) 487-4390.

What is Mass General Waltham's specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Health Service, with taxonomy code 261QH0100X.

Does Mass General Waltham hold CLIA laboratory certificates?

Yes. 4 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 Mass General Waltham accept?

Health plans from Medica and Moda Health Plan, Inc. list Mass General Waltham 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 Mass General Waltham was last updated on August 31, 2022. 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.