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Deactivated NPI 1023008570 Deactivated / Inactive NPI Male Practitioner

Dr. John H Chaglassian , MD

Orthopaedic Surgery • Arlington, MA

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Notice of NPI Deactivation & Inactive Practice Status

According to official public domain records published by CMS (Centers for Medicare & Medicaid Services) in the National Provider Identifier (NPPES) Registry, Dr. John Chaglassian has officially deactivated this NPI record and ceased active healthcare practice.

Registration / Start Date October 26, 2005
NPI Deactivation Date July 28, 2020
Total Practice Duration ~15 Years of Practice (2005 – 2020)

Professional Overview & Biography Verified Profile Summary

Dr. John Chaglassian, MD was a registered Orthopaedic Surgery practicing in Arlington, MA. Throughout an active medical career spanning 15 years, Dr. Chaglassian provided care at the practice location at 1021 MASSACHUSETTS AVE until profile deactivation on 2020-07-28.

Historical Medicare Part B clinical services included new patient outpatient office visit. Public procedure reimbursement records and service volume details are provided below for historical transparency.

Practice Location & Contact Primary Location

Practice Address

1021 Massachusetts Ave

Arlington, MA 024764503

Telephone 7816436437
Fax 7816433809
Associated Practice Facility / Clinic

Specialty Benchmarks & Practice Insights

Comparative analytics for Orthopaedic Surgery in Arlington, MA

Active Practitioner
Practitioner Clinical Experience
Active
City Avg: 10.5 Yrs
State Avg: 28.0 Yrs
Regional Practice Density
2 Specialists

Practicing in Arlington, MA (746 Statewide)

Telehealth Adoption Rate
0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
54.0% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2017)
HCPCS Code & Description Services Patients Submitted Charge Medicare Allowed
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more
14 14 $450.00 $207.06

Medical Specialties & State Licenses

Orthopaedic Surgery Primary Specialty

NUCC Taxonomy Code: 207X00000X

State License MA 37707

An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.

Career & Practice History Timeline

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

7 Historical Events
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NPI Profile Deactivated July 28, 2020

Record deactivated on July 28, 2020

NPI Profile Active July 08, 2007

NPI status registered as active in NPPES database

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Updated Practice Location July 08, 2007

Registered at 1021 MASSACHUSETTS AVE, ARLINGTON, MA 024764503 (Tel: 7816436437)

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Updated Business Mailing Address July 08, 2007

Registered at PO BOX 9142, CHARLESTOWN, MA 021299142 (Tel: 6177240287)

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Provider Name / Credentials Updated July 08, 2007

Recorded as JOHN CHAGLASSIAN, MD

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Medical Taxonomy / Specialty Registered (Primary Specialty) July 08, 2007

Orthopaedic Surgery (License #37707 in MA)

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Initial NPI Registration & Enumeration October 26, 2005

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: 1023008570
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: October 26, 2005
Last Update: July 08, 2007
Deactivation Date: July 28, 2020

Mailing Address

Po Box 9142

Charlestown, MA 021299142

Phone: 6177240287

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.