Active NPI 1386626679 Individual Practitioner Female Practitioner

Dr. Antonia Elizabeth Stephen , MD

Surgery • Boston, MA

✓ Accepts Medicare Assignment Telehealth Available

Professional Overview & Biography Verified Profile Summary

Dr. Antonia Stephen, MD is a certified Surgery practicing in Boston, MA. With approximately 30 years of clinical experience since graduating from Harvard Medical School in 1996, Dr. Stephen delivers high-quality medical care to the local community at 55 FRUIT ST.

Dr. Stephen maintains professional affiliations with Massachusetts General Physicians Organization Inc, The General Hospital Corporation and accepts Medicare assignment . Telehealth and virtual consultation options are available for eligible patients.

Frequently performed procedures and clinical services include ultrasonic guidance during surgery, established patient outpatient office visit, removal or exploration of parathyroid glands. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

55 Fruit St
Surgical Oncology Associates Yaw 7b

Boston, MA 021142621

Telephone 6177260531

Fax 6177243895

Associated Practice Facility / Clinic

🏢 Massachusetts General Hospital Facility NPI 1184613721

Medicare Profile & Education

Medical School

Harvard Medical School

Graduation Year

1996

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

Telehealth Services Available

Specialty Benchmarks & Practice Insights

Comparative analytics for Surgery in Boston, MA

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

30 Yrs +9.1 yrs vs City Avg

City Avg: 20.9 Yrs

State Avg: 28.2 Yrs

Regional Practice Density

454 Specialists

Practicing in Boston, MA (1077 Statewide)

Telehealth Adoption Rate

19.2% Regional Adoption

✓ Offers Virtual Consultations

Medicare Pricing Discount

80.0% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Stephen (30 Years) 30 Yrs

Boston Specialty Average (20.9 Years) 20.9 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
76998 Ultrasonic guidance during surgery	118	116	$251.00	$47.75
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	89	79	$572.78	$138.31
60500 Removal or exploration of parathyroid glands	67	67	$4935.96	$970.53
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	56	54	$598.46	$101.94
99443 Telephone medical discussion with physician, 21-30 minutes	25	21	$405.40	$102.04
60220 Total removal of thyroid lobe on one side of the neck	20	20	$3611.40	$705.99
60271 Removal of thyroid	13	13	$5502.00	$1111.77

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	143	123	$563.41	$103.88
76998 Ultrasonic guidance during surgery	87	87	$249.53	$64.01
60500 Removal or exploration of parathyroid glands	59	59	$4899.24	$955.12
99443 Telephone medical discussion with physician, 21-30 minutes	32	28	$403.44	$103.33
60220 Total removal of thyroid lobe on one side of the neck	11	11	$3788.18	$702.08
60240 Removal of thyroid	11	11	$4462.48	$912.61

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	134	123	$557.37	$105.88
76998 Ultrasonic guidance during surgery	48	48	$241.50	$65.51
99443 Telephone medical discussion with physician, 21-30 minutes	46	42	$398.04	$106.43
60500 Removal or exploration of parathyroid glands	43	43	$4736.48	$979.33
60240 Removal of thyroid	14	14	$4047.46	$881.30
60220 Total removal of thyroid lobe on one side of the neck	14	14	$3548.57	$749.30

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	115	96	$398.41	$108.81
99443 Telephone medical discussion with physician, 21-30 minutes	81	71	$331.26	$109.11
76998 Ultrasonic guidance during surgery	72	72	$547.96	$66.88
60500 Removal or exploration of parathyroid glands	63	63	$4550.35	$976.04

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	94	86	$415.17	$86.29
60500 Removal or exploration of parathyroid glands	49	49	$4421.44	$1048.40
99443 Telephone medical discussion with physician, 21-30 minutes	49	45	$253.02	$86.78
76998 Ultrasonic guidance during surgery	29	29	$676.00	$68.98

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	139	119	$534.81	$83.73
60500 Removal or exploration of parathyroid glands	42	42	$4399.00	$1058.26
10005 Fine needle aspiration of first lesion using ultrasound guidance	27	21	$296.00	$79.62
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	15	14	$688.00	$119.31
99213 Established patient office or other outpatient visit, typically 15 minutes	13	12	$201.46	$54.96
60240 Removal of thyroid	12	12	$4205.00	$1016.54
60220 Total removal of thyroid lobe on one side of the neck	12	12	$3262.00	$775.94

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	105	95	$495.24	$84.66
60500 Removal or exploration of parathyroid glands	33	33	$4465.65	$1022.20
10022 Fine needle aspiration using imaging guidance	30	21	$255.57	$71.43
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	18	18	$716.78	$119.67
60240 Removal of thyroid	14	14	$4205.00	$1003.67

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	119	99	$477.44	$82.72
10022 Fine needle aspiration using imaging guidance	41	29	$255.63	$69.71
60500 Removal or exploration of parathyroid glands	27	27	$4276.81	$994.53
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	12	11	$642.50	$108.67

Medical Specialties & State Licenses

Surgery Primary Specialty

NUCC Taxonomy Code: 208600000X

State License MA 160829

A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

2041031 (MA)

Commercial Insurance / Payer ID Bcbs Ma

J27326 (MA)

Commercial Insurance / Payer ID Tufts Health Plan

760800 (MA)

Hospital & Practice Group Affiliations

The General Hospital Corporation

40 2nd Ave, Waltham, MA 024511132

Phone: 7814872900

The General Hospital Corporation

55 Fruit St, Boston, MA 021142621

Phone: 6177262000

Massachusetts General Physicians Organization Inc

55 Fruit St, Boston, MA 021142696

Phone: 6177240287

Practice Associates & Co-Workers

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

7 Associated Practitioners

Dr. James Cusack , MD

Surgery

NPI 1104809425

Doctor of Medicine (M.D.)

Dr. Kenneth Tanabe , MD

Surgery

NPI 1164413613

Doctor of Medicine (M.D.)

Lanetta Giacona , NP

Nurse Practitioner - Adult Health

NPI 1295976298

Nurse Practitioner

Dr. Gillian Lee , MD, MPH

Preventive Medicine - Public Health & General Preventive Medicine

NPI 1356964977

Doctor of Medicine (M.D.), Master of Public Health

Ann Mcmahon , NP

Nurse Practitioner

NPI 1730343187

Nurse Practitioner

Michele Gadd

Specialist

NPI 1932178076

Career & Practice History Timeline

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

6 Historical Events

✅

NPI Profile Active July 30, 2012

NPI status registered as active in NPPES database

📍

Updated Practice Location July 30, 2012

Registered at 55 FRUIT ST, SURGICAL ONCOLOGY ASSOCIATES YAW 7B, BOSTON, MA 021142621 (Tel: 6177260531)

📍

Updated Business Mailing Address July 30, 2012

Registered at PO BOX 9142, MASS GENERAL PHYSICIAN ORGANIZATION, CHARLESTOWN, MA 021299142 (Tel: 6177260531)

👤

Provider Name / Credentials Updated July 30, 2012

Recorded as ANTONIA STEPHEN, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) July 30, 2012

Surgery (License #160829 in MA)

🟢

Initial NPI Registration & Enumeration November 14, 2005

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

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NPI Administrative Meta

NPI Number: 1386626679

Entity Type:

Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)

Enumeration Date: November 14, 2005

Last Update: July 30, 2012

Sole Proprietor: No

Update or Correct Profile

Mailing Address

Po Box 9142, Mass General Physician Organization

Charlestown, MA 021299142

Phone: 6177260531

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.