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Active NPI 1053802454 Individual Practitioner Female Practitioner

Dr. Mary Wing Sum Tam , MD

Ophthalmology • Danbury, CT

Professional Overview & Biography Verified Profile Summary

Dr. Mary Tam, MD is a certified Ophthalmology practicing in Danbury, CT. With approximately 8 years of clinical experience since graduating from Tufts University School Of Medicine in 2018, Dr. Tam delivers high-quality medical care to the local community at 57 NORTH ST STE 415.

Dr. Tam maintains professional affiliations with South Florida Vision Associates Llc, Aran Eye Associates Pa, Refocus Eye Health Of Central Connecticut Pc and does not directly accept Medicare assignment.

Frequently performed procedures and clinical services include established patient outpatient office visit, exam of visual field with extended testing, imaging of optic nerve. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

57 North St Ste 415

Danbury, CT 068105629

Telephone 2036284995

Medicare Profile & Education

Medical School

Tufts University School Of Medicine

Graduation Year

2018

Medicare Assignment

Not Specified

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Ophthalmology in Danbury, CT

Experienced Practitioner (5-10 Yrs)
Practitioner Clinical Experience
8 Yrs -22.3 yrs vs City Avg
City Avg: 30.3 Yrs
State Avg: 31.3 Yrs
Regional Practice Density
10 Specialists

Practicing in Danbury, CT (363 Statewide)

Telehealth Adoption Rate
0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
50.1% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Tam (8 Years) 8 Yrs
Danbury Specialty Average (30.3 Years) 30.3 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
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
43 41 $250.00 $130.87
92083 Exam of visual field with extended testing
21 19 $60.00 $31.53
92133 Imaging of optic nerve
17 17 $69.12 $34.01
99213 Established patient office or other outpatient visit, typically 15 minutes
15 13 $200.00 $92.84

Medical Specialties & State Licenses

CMS Verified: 2025-07-23
Ophthalmology Primary Specialty

NUCC Taxonomy Code: 207W00000X

State License CT 80895

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.

Ophthalmology

NUCC Taxonomy Code: 207W00000X

State License TX T6053

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.

Ophthalmology

NUCC Taxonomy Code: 207W00000X

State License FL ME163116

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.

Internal Medicine

NUCC Taxonomy Code: 207R00000X

State License MA 275696

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.

Ophthalmology

NUCC Taxonomy Code: 207W00000X

State License NY 960492

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.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID
119673400 (FL)
Medicaid State Provider ID
1053802454 (CT)

Hospital & Practice Group Affiliations

South Florida Vision Associates Llc

2900 W Cypress Creek Rd, Ft Lauderdale, FL 333091715

Phone: 7863435975

Aran Eye Associates Pa

1097 Sw Lejuene Rd, Coral Gables, FL 331342639

Phone: 3054422020147

Refocus Eye Health Of Central Connecticut Pc

57 N St, Danbury, CT 068105629

Phone: 2037940117

Practice Associates & Co-Workers

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

2 Associated Practitioners
NPI 1487604617

Doctor of Optometry

NPI 1578806758

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

16 Historical Events
🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) July 23, 2025

Ophthalmology (License #T6053 in TX)

📍
Updated Practice Location July 09, 2025

Registered at 57 NORTH ST STE 415, DANBURY, CT 068105629 (Tel: 2036284995)

📍
Updated Business Mailing Address July 09, 2025

Registered at 57 NORTH ST STE 415, DANBURY, CT 068105629

📍
Updated Practice Location September 18, 2023

Registered at 1097 SW LEJEUNE ROAD, CORAL GABLES, FL 33134 (Tel: 3054422020)

📍
Updated Business Mailing Address July 07, 2023

Registered at 1097 SW LEJEUNE ROAD, CORAL GABLES, FL 33134

📍
Updated Practice Location May 02, 2022

Registered at 5323 HARRY HINES BLVD, DALLAS, TX 753901699 (Tel: 2146452020)

📍
Updated Business Mailing Address May 02, 2022

Registered at PO BOX 845347, DALLAS, TX 752845347 (Tel: 2146452020)

📍
Updated Practice Location July 26, 2020

Registered at 101 NICOLLS RD, STONY BROOK, NY 117941699 (Tel: 6314444090)

📍
Updated Business Mailing Address July 26, 2020

Registered at 101 NICOLLS RD, STONY BROOK, NY 117941699 (Tel: 6314444090)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) July 26, 2020

Internal Medicine (License #275696 in MA)

NPI Profile Active May 22, 2018

NPI status registered as active in NPPES database

📍
Updated Practice Location May 22, 2018

Registered at 2014 WASHINGTON ST, NEWTON, MA 024621699 (Tel: 6172436467)

📍
Updated Business Mailing Address May 22, 2018

Registered at 2014 WASHINGTON ST, NEWTON, MA 024621699 (Tel: 6172436467)

👤
Provider Name / Credentials Updated May 22, 2018

Recorded as MARY TAM, MD

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) May 22, 2018

Student in an Organized Health Care Education/Training Program

🟢
Initial NPI Registration & Enumeration May 22, 2018

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: 1053802454
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: May 22, 2018
Last Update: July 23, 2025
Sole Proprietor: No

Mailing Address

57 North St Ste 415

Danbury, CT 068105629

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.