MARLBOROUGH HOSPITALIST GROUP, PLLC
NPI 1316639321
Hospitalist in Marlborough, MA

Active since May 26, 2023
157 UNION ST, MARLBOROUGH, MA 01752(508) 481-5000 Get Directions Write a Review

NPPES record last updated: August 13, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Aug 13, 2026, May 26, 2023 (2 updates tracked since 2023).

About Marlborough Hospitalist Group, Pllc NPPES

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

MARLBOROUGH HOSPITALIST GROUP, PLLC (NPI 1316639321) is a healthcare organization registered as a hospitalist in Marlborough, Massachusetts and active in the NPI registry since May 2023. The organization lists Kim Larsen, Director Of Credentialing, as its authorized official.

NPPES Registry Identity

NPI1316639321
Entity TypeOrganization
Primary Taxonomy208M00000X
Legal Business NameMARLBOROUGH HOSPITALIST GROUP, PLLC
Location Address157 UNION STMarlborough, MA 01752-1228
Mailing AddressPo Box 35944Belfast, ME 04915-1201 · (770) 874-5400
Organization SubpartNo
Authorized OfficialKim LarsenDirector Of Credentialing · (770) 874-5400
Enumeration DateMay 26, 2023
Last NPPES UpdateAugust 13, 20262 updates tracked since enumeration
NPPES CertifiedAugust 13, 2026
✔ NPI 1316639321 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians
Taxonomy Code208M00000X
Definition
Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.
157 UNION ST, Marlborough, MA 01752

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Accepted 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)

Marlborough Hospitalist Group, Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

88

Medicare enrollment records show 88 clinicians reassign Medicare billing to Marlborough Hospitalist Group, PLLC, which bills Medicare for the services they deliver. Of these, 5 practice at this address and 7 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 8

Internal Medicine40
Hospitalist29
Nurse Practitioner10
Family Practice4
Emergency Medicine2
Geriatric Medicine1
Infectious Disease1
Nephrology1

Nearest to this location (20)

See all 88
Hospitalist
NPI 1316520711
157 UNION ST
Marlborough, MA 01752
(508) 481-5000
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1487581765
157 UNION ST
Marlborough, MA 01752
(508) 481-5000
✔ PECOSSame address
Internal Medicine
NPI 1104247535
157 UNION ST
Marlborough, MA 01752
(508) 486-5678
✔ PECOS✔ Accepts MedicareSame address
Internal Medicine
NPI 1255731394
157 UNION ST
Marlborough, MA 01752
(508) 486-5678
✔ PECOS✔ Accepts MedicareSame address
Internal Medicine
NPI 1275115925
157 UNION ST
Marlborough, MA 01752
(404) 457-2672
✔ PECOS✔ Accepts MedicareSame address
Internal Medicine
NPI 1104081025
5 OVERLOOK RD
Hopkinton, MA 01748
(646) 748-2963
✔ PECOS✔ Accepts Medicare6.9 mi
Internal Medicine
NPI 1932186574
115 LINCOLN ST
Framingham, MA 01702
(508) 383-1479
✔ PECOS✔ Accepts Medicare8.5 mi
Nephrology
NPI 1821030933
55 LAKE AVE N
Worcester, MA 01655
(508) 334-3155
✔ PECOS✔ Accepts Medicare12 mi
Internal Medicine
NPI 1871908731
55 LAKE AVE N
Worcester, MA 01655
(508) 334-1000
✔ PECOS12 mi
Internal Medicine
NPI 1992755029
55 LAKE AVE N
Worcester, MA 01655
(508) 334-2400
✔ PECOS✔ Accepts Medicare12 mi
Internal Medicine
NPI 1740712496
55 LAKE AVE N
Worcester, MA 01655
(508) 334-8515
✔ PECOS✔ Accepts Medicare12 mi
Family Practice
NPI 1104187400
119 BELMONT ST
Worcester, MA 01605
(508) 334-8515
✔ PECOS✔ Accepts Medicare13 mi
Nurse Practitioner
NPI 1659700599
119 BELMONT ST
Worcester, MA 01605
(508) 334-8515
✔ PECOS✔ Accepts Medicare13 mi
Hospitalist
NPI 1558744268
123 SUMMER ST
Worcester, MA 01608
(508) 363-6208
✔ PECOS✔ Accepts Medicare14 mi
Hospitalist
NPI 1184682346
123 SUMMER ST STE 7350
Worcester, MA 01608
(508) 363-6849
✔ PECOS✔ Accepts Medicare14 mi
Infectious Disease
NPI 1992110415
123 SUMMER ST STE 220S
Worcester, MA 01608
(508) 368-3122
✔ PECOS✔ Accepts Medicare14 mi
Family Practice
NPI 1396943205
60 HOSPITAL RD
Leominster, MA 01453
(978) 466-4169
✔ PECOS✔ Accepts Medicare17 mi
Emergency Medicine
NPI 1679771588
60 HOSPITAL ROAD
Leominster, MA 01453
(978) 466-4169
✔ PECOS✔ Accepts Medicare17 mi
Nurse Practitioner
NPI 1942500509
272 EAST CENTRAL STREET CVS MINUTE CLINIC
Franklin, MA 02038
(508) 528-0597
✔ PECOS21 mi
Geriatric Medicine
NPI 1912136086
72 E CONCORD ST
Boston, MA 02118
(617) 638-6100
✔ PECOS✔ Accepts Medicare25 mi
See all 88 clinicians

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 Marlborough Hospitalist Group, PLLC's NPI number?

The NPI number for Marlborough Hospitalist Group, PLLC is 1316639321. It was assigned to this organization in the NPPES registry on May 26, 2023.

Where is Marlborough Hospitalist Group, PLLC located?

Marlborough Hospitalist Group, PLLC is located at 157 Union St, Marlborough, MA 01752. The listed phone number is (508) 481-5000.

What is Marlborough Hospitalist Group, PLLC's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Is Marlborough Hospitalist Group, PLLC enrolled in Medicare?

Yes. Marlborough Hospitalist Group, PLLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Marlborough Hospitalist Group, PLLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 88 clinicians in 8 Medicare specialties reassign their Medicare billing to Marlborough Hospitalist Group, 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. The largest specialties are Internal Medicine (40), Hospitalist (29) and Nurse Practitioner (10). Of these, 5 practice at this address and 7 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Marlborough Hospitalist Group, PLLC accept?

Health plans from Anthem Blue Cross and Blue Shield and WellSense Health Plan list Marlborough Hospitalist Group, PLLC 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 Marlborough Hospitalist Group, PLLC was last updated on August 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.