Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1013544485 Individual Practitioner Male Practitioner

Luis Guillermo Osorio

Internal Medicine • Springfield, MA

Professional Overview & Biography Verified Profile Summary

Luis Osorio is a registered healthcare professional specializing in Internal Medicine in Springfield, MA. Practice services are available at 759 CHESTNUT ST under active NPI credentials.

Practice Location & Contact Primary Location

Practice Address

759 Chestnut St

Springfield, MA 011994720

Telephone 4137940000
Associated Practice Facility / Clinic
🏢 Baystate Medical Center Inc Facility NPI 1497756282

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Springfield, MA

Active Practitioner
Practitioner Clinical Experience
Active
City Avg: 20.3 Yrs
State Avg: 29.3 Yrs
Regional Practice Density
289 Specialists

Practicing in Springfield, MA (7127 Statewide)

Telehealth Adoption Rate
16.6% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
67.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Medical Specialties & State Licenses

CMS Verified: 2025-07-22
Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License MA 1023854

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.

Practice Associates & Co-Workers

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

40 Associated Practitioners
Dennis Zambrano

Student in an Organized Health Care Education/Training Program

NPI 1003482472
Dr. David Rofaiel , MD

Student in an Organized Health Care Education/Training Program

NPI 1003735895

Doctor of Medicine (M.D.)

Raisa Khan

Student in an Organized Health Care Education/Training Program

NPI 1003755042
NPI 1013478882

Doctor of Osteopathic Medicine (D.O.)

Dr. Antoinette Pacifico , MD

Student in an Organized Health Care Education/Training Program

NPI 1013582485

Doctor of Medicine (M.D.)

NPI 1013611854

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

9 Historical Events
📍
Updated Practice Location July 22, 2025

Registered at 759 CHESTNUT ST, SPRINGFIELD, MA 011994720 (Tel: 4137940000)

📍
Updated Business Mailing Address July 22, 2025

Registered at 759 CHESTNUT ST, SPRINGFIELD, MA 011991001 (Tel: 4137940000)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) July 22, 2025

Internal Medicine (License #1023854 in MA)

NPI Profile Active March 25, 2020

NPI status registered as active in NPPES database

📍
Updated Practice Location March 25, 2020

Registered at 502 W HIGHLAND BLVD, INVERNESS, FL 344524720 (Tel: 3527261551)

📍
Updated Business Mailing Address March 25, 2020

Registered at 14746 LADY VICTORIA BLVD, ORLANDO, FL 328265509

👤
Provider Name / Credentials Updated March 25, 2020

Recorded as LUIS OSORIO

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) March 25, 2020

Student in an Organized Health Care Education/Training Program

🟢
Initial NPI Registration & Enumeration March 25, 2020

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: 1013544485
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: March 25, 2020
Last Update: July 22, 2025
Sole Proprietor: No

Mailing Address

759 Chestnut St

Springfield, MA 011991001

Phone: 4137940000

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.