Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1235723669 Individual Practitioner Male Practitioner

Mark Jeffrey Phillips

Ophthalmology • Boston, MA

Professional Overview & Biography Verified Profile Summary

Mark Phillips is a registered healthcare professional specializing in Ophthalmology in Boston, MA. Practice services are available at 243 CHARLES ST under active NPI credentials.

Practice Location & Contact Primary Location

Practice Address

243 Charles St

Boston, MA 021143096

Telephone 6175733412
Associated Practice Facility / Clinic

Specialty Benchmarks & Practice Insights

Comparative analytics for Ophthalmology in Boston, MA

Active Practitioner
Practitioner Clinical Experience
Active
City Avg: 19.9 Yrs
State Avg: 30.8 Yrs
Regional Practice Density
339 Specialists

Practicing in Boston, MA (841 Statewide)

Telehealth Adoption Rate
5.0% 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: 2026-07-06
Ophthalmology Primary Specialty

NUCC Taxonomy Code: 207W00000X

State License MA 1022527

An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.

Student in an Organized Health Care Education/Training Program

NUCC Taxonomy Code: 390200000X

An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.

Secondary Practice Locations

1100 N State St, Clinic Tower, Suite A4d

Los Angeles, CA 900335000

Phone: 3234095227

300 Longwood Ave

Boston, MA 021155724

Phone: 6173556000

Practice Associates & Co-Workers

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

11 Associated Practitioners
NPI 1154739134
NPI 1235109414

Doctor of Medicine (M.D.)

NPI 1306590518

Doctor of Medicine (M.D.)

NPI 1316294622
Dr. Ryan Gise , MD

Ophthalmology

NPI 1417214107

Doctor of Medicine (M.D.)

NPI 1447137161

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

10 Historical Events
📍
Updated Practice Location July 06, 2026

Registered at 243 CHARLES ST, BOSTON, MA 021143096 (Tel: 6175733412)

📍
Updated Business Mailing Address July 06, 2026

Registered at 243 CHARLES ST, BOSTON, MA 021143096 (Tel: 6175733412)

📍
Updated Practice Location May 11, 2025

Registered at 300 LONGWOOD AVE, BOSTON, MA 021155724 (Tel: 6173556000)

📍
Updated Business Mailing Address May 11, 2025

Registered at 300 LONGWOOD AVE, BOSTON, MA 021155724 (Tel: 6173556000)

NPI Profile Active February 25, 2021

NPI status registered as active in NPPES database

📍
Updated Practice Location February 25, 2021

Registered at 1100 N STATE ST, CLINIC TOWER, SUITE A4D, LOS ANGELES, CA 900335000 (Tel: 3234095227)

📍
Updated Business Mailing Address February 25, 2021

Registered at 1100 N STATE ST, CLINIC TOWER, SUITE A4D, LOS ANGELES, CA 900335000

👤
Provider Name / Credentials Updated February 25, 2021

Recorded as MARK PHILLIPS

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) February 25, 2021

Student in an Organized Health Care Education/Training Program

🟢
Initial NPI Registration & Enumeration February 25, 2021

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: 1235723669
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: February 25, 2021
Last Update: July 06, 2026
Sole Proprietor: No

Mailing Address

243 Charles St

Boston, MA 021143096

Phone: 6175733412

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.