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Deactivated NPI 1679657928 Deactivated / Inactive NPI Male Practitioner

Dr. Thomas John Harrison , MD

Ophthalmology • Tucson, AZ

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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. Thomas Harrison has officially deactivated this NPI record and ceased active healthcare practice.

Registration / Start Date October 24, 2006
NPI Deactivation Date May 29, 2025
Total Practice Duration ~19 Years of Practice (2006 – 2025)

Professional Overview & Biography Verified Profile Summary

Dr. Thomas Harrison, MD was a registered Ophthalmology practicing in Tucson, AZ. Throughout an active medical career spanning 19 years, Dr. Harrison provided care at the practice location at 3601 S 6TH AVE until profile deactivation on 2025-05-29.

Practice Location & Contact Primary Location

Practice Address

3601 S 6th Ave

Tucson, AZ 857230001

Telephone 5207921450
Associated Practice Facility / Clinic
🏢 Tucson Vamc Facility NPI 1811945090

Specialty Benchmarks & Practice Insights

Comparative analytics for Ophthalmology in Tucson, AZ

Active Practitioner
Practitioner Clinical Experience
Active
City Avg: 25.2 Yrs
State Avg: 27.4 Yrs
Regional Practice Density
107 Specialists

Practicing in Tucson, AZ (384 Statewide)

Telehealth Adoption Rate
0.0% 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

Ophthalmology Primary Specialty

NUCC Taxonomy Code: 207W00000X

State License AK 464

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.

Practice Associates & Co-Workers

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

40 Associated Practitioners
Dr. David Hamilton , MD

Internal Medicine - Cardiovascular Disease

NPI 1003203969

Doctor of Medicine (M.D.)

NPI 1003240847

Doctor of Pharmacy (Pharm.D.)

NPI 1003282211

Master of Social Work

NPI 1003332586

Doctor of Pharmacy (Pharm.D.)

Janice Thron-Kelly , LCSW

Social Worker - Clinical

NPI 1003385212

Licensed Clinical Social Worker

Dr. Cristina Matei , MD

Psychiatry & Neurology - Neurology

NPI 1003927864

Doctor of Medicine (M.D.)

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 May 29, 2025

Record deactivated on May 29, 2025

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 3601 S 6TH AVE, TUCSON, AZ 857230001 (Tel: 5207921450)

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Updated Business Mailing Address July 08, 2007

Registered at 12890 N HIGH HAWK DR, MARANA, AZ 856534237 (Tel: 5205729664)

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Provider Name / Credentials Updated July 08, 2007

Recorded as THOMAS HARRISON, MD

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

Ophthalmology (License #464 in AK)

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Initial NPI Registration & Enumeration October 24, 2006

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: 1679657928
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: October 24, 2006
Last Update: July 08, 2007
Deactivation Date: May 29, 2025

Mailing Address

12890 N High Hawk Dr

Marana, AZ 856534237

Phone: 5205729664

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.