Active NPI 1811939374 Individual Practitioner Male Practitioner

Dr. Thomas Isaac , MD

Internal Medicine • Braintree, MA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Thomas Isaac, MD is a certified Internal Medicine practicing in Braintree, MA. With approximately 25 years of clinical experience since completing medical education in 2001, Dr. Isaac delivers high-quality medical care to the local community at 111 GROSSMAN DR.

Dr. Isaac is affiliated with Atrius Health Inc and accepts Medicare assignment.

Frequently performed procedures and clinical services include insertion of needle into vein for collection of blood sample, hemoglobin a1c level, blood test, lipids (cholesterol and triglycerides). Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

111 Grossman Dr

Braintree, MA 021844997

Telephone 7818492405

Fax 7818492238

Associated Practice Facility / Clinic

🏢 Harvard Vanguard Medical Associates Facility NPI 1972664563

Medicare Profile & Education

Medical School

Other

Graduation Year

2001

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Braintree, MA

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

25 Yrs -8.0 yrs vs City Avg

City Avg: 33.0 Yrs

State Avg: 29.3 Yrs

Regional Practice Density

34 Specialists

Practicing in Braintree, MA (7127 Statewide)

Telehealth Adoption Rate

44.1% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

75.8% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Isaac (25 Years) 25 Yrs

Braintree Specialty Average (33.0 Years) 33.0 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
36415 Insertion of needle into vein for collection of blood sample	55	30	$20.00	$8.65
83036 Hemoglobin A1C level	33	23	$39.00	$9.29
80061 Blood test, lipids (cholesterol and triglycerides)	22	22	$67.00	$12.60

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
36415 Insertion of needle into vein for collection of blood sample	144	64	$17.33	$8.40
83036 Hemoglobin A1C level	79	44	$39.00	$9.52
80061 Blood test, lipids (cholesterol and triglycerides)	50	48	$67.00	$13.12
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	41	41	$363.00	$53.87
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	40	34	$346.00	$105.56
82565 Blood creatinine level	38	36	$21.00	$5.02
82043 Urine microalbumin (protein) level	31	30	$23.00	$5.66
82570 Creatinine level to test for kidney function or muscle injury	29	28	$21.00	$5.08
99213 Established patient office or other outpatient visit, typically 15 minutes	28	25	$264.79	$71.98
85027 Complete blood cell count (red cells, white blood cell, platelets), automated test	23	23	$26.00	$6.34
G0008 Administration of influenza virus vaccine	19	18	$69.53	$33.84
84153 Psa (prostate specific antigen) measurement, total	18	14	$74.00	$18.02
86704 Hepatitis b core antibody measurement	17	17	$49.00	$11.81
87340 Detection test for Hepatitis B surface antigen	17	17	$42.00	$10.12
86706 Hepatitis b surface antibody measurement	17	17	$43.00	$10.53
84132 Blood potassium level	17	17	$19.00	$4.66
82607 Cyanocobalamin (vitamin B-12) level	14	14	$61.00	$14.78
90694 Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage	13	13	$148.00	$75.81

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
36415 Insertion of needle into vein for collection of blood sample	158	67	$12.00	$2.96
83036 Hemoglobin A1C level	66	44	$39.00	$9.59
80061 Blood test, lipids (cholesterol and triglycerides)	58	53	$67.00	$13.23
82565 Blood creatinine level	43	43	$21.00	$5.05
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	41	41	$363.00	$56.13
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	39	33	$346.00	$105.77
99213 Established patient office or other outpatient visit, typically 15 minutes	22	21	$238.00	$80.30
84132 Blood potassium level	22	22	$19.00	$4.70
82570 Creatinine level to test for kidney function or muscle injury	21	20	$21.00	$5.12
84153 Psa (prostate specific antigen) measurement, total	21	19	$74.00	$18.19
82043 Urine microalbumin (protein) level	20	20	$23.00	$5.72
85027 Complete blood cell count (red cells, white blood cell, platelets), automated test	19	17	$26.00	$6.42
84443 Blood test, thyroid stimulating hormone (TSH)	17	14	$68.00	$16.66
82607 Cyanocobalamin (vitamin B-12) level	13	11	$61.00	$14.95
U0003 Infectious agent detection by nucleic acid (dna or rna); severe acute respiratory syndrome coronavirus 2 (sars-cov-2) (coronavirus disease [covid-19]), amplified probe technique, making use of high throughput technologies as described by cms-2020-01-r	12	11	$209.00	$74.06
U0005 Infectious agent detection by nucleic acid (dna or rna); severe acute respiratory syndrome coronavirus 2 (sars-cov-2) (coronavirus disease [covid-19]), amplified probe technique, cdc or non-cdc, making use of high throughput technologies, completed within	12	11	$30.00	$24.69
82306 Vitamin d-3 level	11	11	$119.00	$29.41
80051 Blood test panel for electrolytes (sodium potassium, chloride, carbon dioxide)	11	11	$28.00	$6.93

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
36415 Insertion of needle into vein for collection of blood sample	174	69	$12.00	$3.00
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	86	55	$325.14	$144.64
83036 Hemoglobin A1C level	77	47	$39.00	$9.71
80061 Blood test, lipids (cholesterol and triglycerides)	59	56	$67.00	$13.39
82565 Blood creatinine level	44	40	$21.00	$5.12
82043 Urine microalbumin (protein) level	29	28	$23.00	$5.78
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	27	27	$329.63	$148.81
82570 Creatinine level to test for kidney function or muscle injury	26	26	$21.00	$5.18
99213 Established patient office or other outpatient visit, typically 15 minutes	25	25	$217.84	$102.99
84132 Blood potassium level	23	22	$19.00	$4.76
85027 Complete blood cell count (red cells, white blood cell, platelets), automated test	22	22	$26.00	$6.47
G0008 Administration of influenza virus vaccine	17	17	$67.00	$19.53
84153 Psa (prostate specific antigen) measurement, total	16	12	$74.00	$18.39
90662 Influenza vaccine split virus, preservative free	16	16	$145.00	$65.26
U0003 Infectious agent detection by nucleic acid (dna or rna); severe acute respiratory syndrome coronavirus 2 (sars-cov-2) (coronavirus disease [covid-19]), amplified probe technique, making use of high throughput technologies as described by cms-2020-01-r	14	12	$209.00	$75.00
U0005 Infectious agent detection by nucleic acid (dna or rna); severe acute respiratory syndrome coronavirus 2 (sars-cov-2) (coronavirus disease [covid-19]), amplified probe technique, cdc or non-cdc, making use of high throughput technologies, completed within	14	12	$30.00	$25.00
82306 Vitamin d-3 level	14	14	$119.00	$29.60
84460 Liver enzyme (sgpt), level	11	11	$21.00	$5.30

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
36415 Insertion of needle into vein for collection of blood sample	158	64	$12.00	$2.98
83036 Hemoglobin A1C level	61	43	$39.00	$9.67
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	58	50	$300.00	$122.14
80061 Blood test, lipids (cholesterol and triglycerides)	54	50	$67.00	$13.34
82565 Blood creatinine level	41	40	$21.00	$5.09
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	30	30	$310.00	$130.19
85027 Complete blood cell count (red cells, white blood cell, platelets), automated test	29	29	$26.00	$6.44
82570 Creatinine level to test for kidney function or muscle injury	25	24	$21.00	$5.13
84132 Blood potassium level	24	24	$19.00	$4.72
82043 Urine microalbumin (protein) level	24	24	$23.00	$5.72
99442 Telephone medical discussion with physician, 11-20 minutes	23	20	$100.70	$84.14
99213 Established patient office or other outpatient visit, typically 15 minutes	22	20	$202.00	$80.80
G0008 Administration of influenza virus vaccine	17	17	$67.00	$19.03
90662 Influenza vaccine split virus, preservative free	15	15	$124.00	$60.98
80048 Blood test, basic group of blood chemicals (calcium, total)	12	12	$34.00	$8.42
84466 Transferrin (iron binding protein) level	11	11	$52.00	$12.74
83540 Iron level	11	11	$26.00	$6.46

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
36415 Insertion of needle into vein for collection of blood sample	114	50	$12.00	$2.94
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	67	49	$297.00	$118.62
80061 Blood test, lipids (cholesterol and triglycerides)	55	47	$67.00	$14.58
83036 Hemoglobin A1C level	44	28	$39.00	$10.40
G0008 Administration of influenza virus vaccine	29	28	$67.00	$18.65
82565 Blood creatinine level	26	23	$21.00	$5.43
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	23	23	$310.00	$128.43
82570 Creatinine level to test for kidney function or muscle injury	19	18	$21.00	$5.63
99213 Established patient office or other outpatient visit, typically 15 minutes	18	17	$202.00	$80.04
82043 Urine microalbumin (protein) level	18	17	$23.00	$6.29
90662 Influenza vaccine split virus, preservative free	15	15	$100.00	$54.54
84132 Blood potassium level	15	14	$19.00	$5.01
84443 Blood test, thyroid stimulating hormone (TSH)	14	13	$68.00	$18.30
85027 Complete blood cell count (red cells, white blood cell, platelets), automated test	14	14	$26.00	$6.69
84295 Blood sodium level	13	11	$19.00	$5.24
Q2038 Influenza virus vaccine, split virus, when administered to individuals 3 years of age and older, for intramuscular use (fluzone)	13	12	$60.00	$53.89

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
36415 Insertion of needle into vein for collection of blood sample	98	45	$7.00	$2.94
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	55	37	$271.47	$118.64
80061 Blood test, lipids (cholesterol and triglycerides)	31	30	$42.00	$16.20
83036 Hemoglobin A1C level	24	18	$30.00	$11.75
82565 Blood creatinine level	21	20	$16.00	$6.20
G0008 Administration of influenza virus vaccine	17	17	$23.00	$22.54
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	16	16	$297.00	$129.54
85027 Complete blood cell count (red cells, white blood cell, platelets), automated test	15	15	$20.00	$7.82
99213 Established patient office or other outpatient visit, typically 15 minutes	13	13	$186.31	$77.19
82570 Creatinine level to test for kidney function or muscle injury	13	12	$16.00	$6.26
82043 Urine microalbumin (protein) level	13	12	$17.00	$7.00
90662 Influenza vaccine split virus, preservative free	12	12	$96.67	$51.95
84132 Blood potassium level	11	11	$15.00	$5.57

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
36415 Insertion of needle into vein for collection of blood sample	77	39	$6.00	$2.94
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	42	29	$203.00	$116.73
80061 Blood test, lipids (cholesterol and triglycerides)	30	30	$32.00	$13.71
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	30	30	$222.00	$126.21
83036 Hemoglobin A1C level	29	18	$24.00	$13.05
82565 Blood creatinine level	22	20	$13.00	$4.54
G0009 Administration of pneumococcal vaccine	20	20	$50.00	$28.66
90670 Pneumococcal vaccine for injection into muscle	19	19	$304.00	$184.01
85027 Complete blood cell count (red cells, white blood cell, platelets), automated test	16	14	$16.00	$8.69
99213 Established patient office or other outpatient visit, typically 15 minutes	15	12	$139.00	$79.51
82570 Creatinine level to test for kidney function or muscle injury	13	13	$13.00	$6.96
G0008 Administration of influenza virus vaccine	13	11	$50.00	$28.66
82043 Urine microalbumin (protein) level	12	12	$13.00	$7.26
84132 Blood potassium level	12	11	$11.00	$3.91

Medical Specialties & State Licenses

CMS Verified: 2021-03-07

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License MA 223676

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

Atrius Health Inc

133 Brookline Ave, Boston, MA 022153904

Phone: 6174211000

Atrius Health Inc

100 2nd Ave, Needham, MA 024942809

Phone: 7817264800

Practice Associates & Co-Workers

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

6 Associated Practitioners

Dr. Scott Souther , MD

Internal Medicine

NPI 1033550157

Doctor of Medicine (M.D.)

Dr. Holly Thomas , MD

Internal Medicine

NPI 1114020328

Doctor of Medicine (M.D.)

Dr. Sara Kelly , MD

Internal Medicine

NPI 1164491957

Doctor of Medicine (M.D.)

Dr. Christopher Teitleman , MD

Internal Medicine

NPI 1457352338

Doctor of Medicine (M.D.)

Dr. Nancy Radden , MD

Internal Medicine

NPI 1831134105

Doctor of Medicine (M.D.)

Kathleen Lord Naples , PA

Physician Assistant

NPI 1861456857

Physician Assistant

Career & Practice History Timeline

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

6 Historical Events

✅

NPI Profile Active December 18, 2012

NPI status registered as active in NPPES database

📍

Updated Practice Location December 18, 2012

Registered at 111 GROSSMAN DR, BRAINTREE, MA 021844997 (Tel: 7818492405)

📍

Updated Business Mailing Address December 18, 2012

Registered at 111 GROSSMAN DR, BRAINTREE, MA 021844997 (Tel: 7818492405)

👤

Provider Name / Credentials Updated December 18, 2012

Recorded as THOMAS ISAAC, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) December 18, 2012

Internal Medicine (License #223676 in MA)

🟢

Initial NPI Registration & Enumeration June 11, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

0 Reviews

No patient reviews submitted yet for Dr. Thomas Isaac. Be the first to share your experience!

Only verified registered users can submit ratings, post feedback, and upload facility photos.

NPI Administrative Meta

NPI Number: 1811939374

Entity Type:

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

Enumeration Date: June 11, 2006

Last Update: March 07, 2021

Sole Proprietor: No

Update or Correct Profile

Mailing Address

111 Grossman Dr

Braintree, MA 021844997

Phone: 7818492405

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.