WINCHESTER LAHEY INPATIENT SPECIALISTS PLLC
NPI 1144770629
Internal Medicine in Winchester, MA

Active since October 10, 2016
41 HIGHLAND AVE, WINCHESTER, MA 01890(781) 729-9000(866) 722-5233 Get Directions Write a Review

NPPES record last updated: May 28, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: May 28, 2025, Mar 12, 2018, Feb 23, 2018 and 4 more (7 updates tracked since 2016).

About Winchester Lahey Inpatient Specialists Pllc NPPES

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

WINCHESTER LAHEY INPATIENT SPECIALISTS PLLC (NPI 1144770629) is a healthcare organization registered as an internal medicine in Winchester, Massachusetts and active in the NPI registry since October 2016. The organization lists Mohammed Jaleel, Md, as its authorized official.

NPPES Registry Identity

NPI1144770629
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameWINCHESTER LAHEY INPATIENT SPECIALISTS PLLC
Location Address41 HIGHLAND AVEWinchester, MA 01890-1446
Mailing Address290 Littleton Rd Unit 3Chelmsford, MA 01824-3429 · (978) 258-4734
Fax(866) 722-5233
Organization SubpartNo
Authorized OfficialMohammed JaleelMd · (978) 258-4734
Enumeration DateOctober 10, 2016
Last NPPES UpdateMay 28, 20257 updates tracked since enumeration
NPPES CertifiedMay 28, 2025
✔ NPI 1144770629 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ 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.
41 HIGHLAND AVE, Winchester, MA 01890

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

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Winchester Lahey Inpatient Specialists Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

101

Medicare enrollment records show 101 clinicians reassign Medicare billing to Winchester Lahey Inpatient Specialists PLLC, which bills Medicare for the services they deliver. Of these, 14 practice at this address and 35 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 7

Internal Medicine60
Nurse Practitioner25
Hospitalist9
Family Practice3
Emergency Medicine2
Critical Care (Intensivists)1
Hematology/Oncology1

Nearest to this location (20)

See all 101
Internal Medicine
NPI 1568425346
41 HIGHLAND AVE 4TH FLOOR
Winchester, MA 01890
(781) 756-7095
✔ PECOS✔ Accepts MedicareSame address
Internal Medicine
NPI 1528242203
41 HIGHLAND AVE
Winchester, MA 01890
(781) 756-7095
✔ PECOS✔ Accepts MedicareSame address
Internal Medicine
NPI 1003166885
41 HIGHLAND AVE
Winchester, MA 01890
(781) 729-9000
✔ PECOS✔ Accepts MedicareSame address
Internal Medicine
NPI 1396729224
41 HIGHLAND AVE
Winchester, MA 01890
(781) 756-7095
✔ PECOS✔ Accepts MedicareSame address
Internal Medicine
NPI 1033282272
41 HIGHLAND AVE
Winchester, MA 01890
(781) 756-7095
✔ PECOS✔ Accepts MedicareSame address
Internal Medicine
NPI 1316209190
41 HIGHLAND AVE
Winchester, MA 01890
(781) 756-7095
✔ PECOS✔ Accepts MedicareSame address
Emergency Medicine
NPI 1295795433
41 HIGHLAND AVE
Winchester, MA 01890
(781) 756-7095
✔ PECOS✔ Accepts MedicareSame address
Internal Medicine
NPI 1790955151
41 HIGHLAND AVE
Winchester, MA 01890
(781) 756-7095
✔ PECOS✔ Accepts MedicareSame address
Internal Medicine
NPI 1033191366
41 HIGHLAND AVE
Winchester, MA 01890
(781) 756-7095
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1821662719
41 HIGHLAND AVE
Winchester, MA 01890
(781) 729-9000
✔ PECOSSame address
Internal Medicine
NPI 1669420311
41 HIGHLAND AVE
Winchester, MA 01890
(781) 756-7095
✔ PECOS✔ Accepts MedicareSame address
Internal Medicine
NPI 1932204260
41 HIGHLAND AVE
Winchester, MA 01890
(781) 756-7095
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1538760186
41 HIGHLAND AVE
Winchester, MA 01890
(781) 756-7095
✔ PECOSSame address
Internal Medicine
NPI 1912964610
41 HIGHLAND AVE
Winchester, MA 01890
(781) 756-7095
✔ PECOS✔ Accepts MedicareSame address
Internal Medicine
NPI 1740229749
955 MAIN ST SUITE 304
Winchester, MA 01890
(781) 729-5651
✔ PECOS1.1 mi
Internal Medicine
NPI 1619076833
92 MONTVALE AVE STE 3675
Stoneham, MA 02180
(781) 438-1800
✔ PECOS✔ Accepts Medicare1.1 mi
Nurse Practitioner
NPI 1609447572
3 WOODLAND RD STE 213
Stoneham, MA 02180
(781) 662-7990
✔ PECOS1.4 mi
Hospitalist
NPI 1831133008
41 MALL RD LAHEY CLINIC
Burlington, MA 01805
(781) 744-5700
✔ PECOS4.4 mi
Critical Care (Intensivists)
NPI 1386807329
41 MALL RD
Burlington, MA 01805
(781) 744-5238
✔ PECOS✔ Accepts Medicare4.4 mi
Nurse Practitioner
NPI 1598393381
41 MALL RD
Burlington, MA 01805
(781) 744-8000
✔ PECOS✔ Accepts Medicare4.7 mi
See all 101 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 Winchester Lahey Inpatient Specialists PLLC's NPI number?

The NPI number for Winchester Lahey Inpatient Specialists PLLC is 1144770629. It was assigned to this organization in the NPPES registry on October 10, 2016.

Where is Winchester Lahey Inpatient Specialists PLLC located?

Winchester Lahey Inpatient Specialists PLLC is located at 41 Highland Ave, Winchester, MA 01890. The listed phone number is (781) 729-9000.

What is Winchester Lahey Inpatient Specialists PLLC's specialty?

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

Is Winchester Lahey Inpatient Specialists PLLC enrolled in Medicare?

Yes. Winchester Lahey Inpatient Specialists PLLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Winchester Lahey Inpatient Specialists PLLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 101 clinicians in 7 Medicare specialties reassign their Medicare billing to Winchester Lahey Inpatient Specialists 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 (60), Nurse Practitioner (25) and Hospitalist (9). Of these, 14 practice at this address and 35 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Winchester Lahey Inpatient Specialists PLLC was last updated on May 28, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.