Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1710305289 Individual Practitioner Male Practitioner

Dr. Gregory M. Leslie , MD

Internal Medicine • Worcester, MA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Gregory Leslie, MD is a certified Internal Medicine practicing in Worcester, MA. With approximately 12 years of clinical experience since graduating from University Of Massachusetts Medical School in 2014, Dr. Leslie delivers high-quality medical care to the local community at 55 LAKE AVE N.

Dr. Leslie is affiliated with Umass Memorial Medical Group Inc and accepts Medicare assignment.

Frequently performed procedures and clinical services include subsequent hospital care with moderate levelof medical decision making, if using time, at least, hospital discharge day management, more than, initial hospital care with moderate level of medical decision making, if using time, at least. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

55 Lake Ave N

Worcester, MA 016550002

Telephone 5083348515
Fax 5083346490
Associated Practice Facility / Clinic
🏢 Umass Memorial Medical Center Facility NPI 1679574933

Medicare Profile & Education

Medical School

University Of Massachusetts Medical School

Graduation Year

2014

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Worcester, MA

Established Specialist (10-20 Yrs)
Practitioner Clinical Experience
12 Yrs -7.4 yrs vs City Avg
City Avg: 19.4 Yrs
State Avg: 29.3 Yrs
Regional Practice Density
460 Specialists

Practicing in Worcester, MA (7127 Statewide)

Telehealth Adoption Rate
15.9% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
66.3% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Leslie (12 Years) 12 Yrs
Worcester Specialty Average (19.4 Years) 19.4 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)
Reporting Year:
HCPCS Code & Description Services Patients Submitted Charge Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes
61 29 $238.00 $77.99
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes
42 28 $342.00 $117.31

Medical Specialties & State Licenses

CMS Verified: 2021-03-26
Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License MA 269608

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.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID
110115436A (MA)

Hospital & Practice Group Affiliations

Umass Memorial Medical Group Inc

55 Lake Ave N, Worcester, MA 016550002

Phone: 5083341000

Secondary Practice Locations

119 Belmont St

Worcester, MA 016052903

Phone: 5083348515

157 Union St

Marlborough, MA 017521228

Phone: 5084865678

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

40 Associated Practitioners
Kyle Fernandez , PA-C

Physician Assistant

NPI 1003598509

Physician Assistant (Certified)

NPI 1013144757

Doctor of Medicine (M.D.)

Nicholas Paicos , PA STUDENT

Physician Assistant

NPI 1013638055

PASTUDENT

Dr. Nidhi Chojar , MD

Internal Medicine

NPI 1023009636

Doctor of Medicine (M.D.)

Dr. Samson Jolly , MD

Internal Medicine

NPI 1023758984

Doctor of Medicine (M.D.)

Dr. Evan Dang , DO

Internal Medicine

NPI 1033785167

Doctor of Osteopathic Medicine (D.O.)

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

11 Historical Events
NPI Profile Active August 07, 2017

NPI status registered as active in NPPES database

📍
Updated Business Mailing Address August 07, 2017

Registered at PO BOX 415348, BOSTON, MA 022415348 (Tel: (800) 225-8885)

📍
Updated Practice Location August 07, 2017

Registered at 55 LAKE AVE N, WORCESTER, MA 016550002 (Tel: 7744416767)

👤
Provider Name / Credentials Updated August 07, 2017

Recorded as GREGORY LESLIE, M.D.

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) August 07, 2017

Internal Medicine (License #269608 in MA)

NPI Profile Active July 06, 2016

NPI status registered as active in NPPES database

📍
Updated Practice Location July 06, 2016

Registered at 55 LAKE AVE N, WORCESTER, MA 016550002 (Tel: 5083341000)

📍
Updated Business Mailing Address July 06, 2016

Registered at 55 LAKE AVE N, WORCESTER, MA 016550002 (Tel: 5083341000)

👤
Provider Name / Credentials Updated July 06, 2016

Recorded as GREGORY LESLIE, M.D.

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) July 06, 2016

Student in an Organized Health Care Education/Training Program

🟢
Initial NPI Registration & Enumeration April 02, 2014

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1710305289
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: April 02, 2014
Last Update: March 26, 2021
Sole Proprietor: No

Mailing Address

Po Box 415348

Boston, MA 022415348

Phone: 8002258885

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.