Active NPI 1770879231 Individual Practitioner Male Practitioner

Dr. Jason G. Barrera , MD, PhD

Internal Medicine • Boston, MA

Telehealth Available

Professional Overview & Biography Verified Profile Summary

Dr. Jason Barrera, MD, PhD is a certified Internal Medicine practicing in Boston, MA. With approximately 15 years of clinical experience since graduating from University Of Cincinnati College Of Medicine in 2011, Dr. Barrera delivers high-quality medical care to the local community at 165 CAMBRIDGE ST FL 5.

Dr. Barrera maintains professional affiliations with Massachusetts General Physicians Organization Inc, The General Hospital Corporation and does not directly accept Medicare assignment . Telehealth and virtual consultation options are available for eligible patients.

Frequently performed procedures and clinical services include established patient outpatient office visit, visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's, annual depression screening, 5 to. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

165 Cambridge St Fl 5

Boston, MA 021142759

Telephone 6177264900

Medicare Profile & Education

Medical School

University Of Cincinnati College Of Medicine

Graduation Year

2011

Medicare Assignment

Not Specified

Telehealth Flag

Telehealth Services Available

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Boston, MA

Established Specialist (10-20 Yrs)

Practitioner Clinical Experience

15 Yrs -2.4 yrs vs City Avg

City Avg: 17.4 Yrs

State Avg: 29.3 Yrs

Regional Practice Density

2379 Specialists

Practicing in Boston, MA (7127 Statewide)

Telehealth Adoption Rate

24.8% Regional Adoption

✓ Offers Virtual Consultations

Medicare Pricing Discount

73.7% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Barrera (15 Years) 15 Yrs

Boston Specialty Average (17.4 Years) 17.4 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	175	143	$409.56	$102.10
99213 Established patient office or other outpatient visit, typically 15 minutes	122	118	$278.22	$69.27
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	73	48	$602.73	$151.49
G2211 Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's	51	46	$70.45	$17.34
G0444 Annual depression screening, 5 to 15 minutes	46	46	$52.00	$9.54
G0442 Annual alcohol misuse screening, 5 to 15 minutes	45	45	$52.00	$9.54
99443 Telephone medical discussion with physician, 21-30 minutes	25	18	$407.40	$101.90
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	13	13	$408.54	$139.37

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	179	155	$404.01	$103.94
99213 Established patient office or other outpatient visit, typically 15 minutes	135	130	$276.36	$70.43
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	55	37	$599.00	$152.72
99443 Telephone medical discussion with physician, 21-30 minutes	24	21	$403.67	$103.39

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	162	142	$399.69	$105.80
99213 Established patient office or other outpatient visit, typically 15 minutes	158	149	$269.92	$72.30
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	73	62	$585.19	$157.69
99443 Telephone medical discussion with physician, 21-30 minutes	16	15	$399.25	$105.99

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	128	105	$339.22	$108.81
99213 Established patient office or other outpatient visit, typically 15 minutes	105	97	$230.35	$73.61
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	82	69	$498.88	$160.29

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	189	129	$317.36	$85.68
99213 Established patient office or other outpatient visit, typically 15 minutes	57	54	$211.25	$55.99
99443 Telephone medical discussion with physician, 21-30 minutes	57	49	$179.68	$86.49
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	32	13	$291.00	$79.38
99442 Telephone medical discussion with physician, 11-20 minutes	26	23	$110.23	$56.10

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	361	312	$312.57	$84.79
99213 Established patient office or other outpatient visit, typically 15 minutes	147	137	$202.53	$54.98
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	37	12	$285.32	$78.10

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	373	311	$304.62	$84.71
99213 Established patient office or other outpatient visit, typically 15 minutes	122	111	$197.23	$55.36

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	425	347	$290.37	$80.57
99213 Established patient office or other outpatient visit, typically 15 minutes	126	117	$192.63	$52.24

Medical Specialties & State Licenses

CMS Verified: 2026-02-10

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License MA 256717

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.

Hospital & Practice Group Affiliations

Massachusetts General Physicians Organization Inc

55 Fruit St, Boston, MA 021142696

Phone: 6177240287

The General Hospital Corporation

55 Fruit St, Boston, MA 021142621

Phone: 6177262000

Practice Associates & Co-Workers

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

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Career & Practice History Timeline

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

9 Historical Events

📍

Updated Practice Location February 10, 2026

Registered at 165 CAMBRIDGE ST FL 5, BOSTON, MA 021142759 (Tel: 6177264900)

📍

Updated Business Mailing Address February 10, 2026

Registered at 165 CAMBRIDGE ST FL 5, BOSTON, MA 021142759 (Tel: 6177264900)

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) February 10, 2026

Internal Medicine (License #256717 in MA)

✅

NPI Profile Active June 23, 2011

NPI status registered as active in NPPES database

📍

Updated Practice Location June 23, 2011

Registered at MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT ST., BOSTON, MA 02114 (Tel: 6177262674)

📍

Updated Business Mailing Address June 23, 2011

Registered at MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT ST., BOSTON, MA 02114 (Tel: 6177262674)

👤

Provider Name / Credentials Updated June 23, 2011

Recorded as JASON BARRERA, MD, PHD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) June 23, 2011

Internal Medicine (License #L-247805 in MA)

🟢

Initial NPI Registration & Enumeration June 23, 2011

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: 1770879231

Entity Type:

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

Enumeration Date: June 23, 2011

Last Update: February 10, 2026

Sole Proprietor: No

Update or Correct Profile

Mailing Address

165 Cambridge St Fl 5

Boston, MA 021142759

Phone: 6177264900

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.