Active NPI 1265457675 Individual Practitioner Male Practitioner

Dr. Michael G Gregory , MD

Internal Medicine • Brookline, MA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Michael Gregory, MD is a certified Internal Medicine practicing in Brookline, MA. With approximately 39 years of clinical experience since completing medical education in 1987, Dr. Gregory delivers high-quality medical care to the local community at 135 PLEASANT ST.

Dr. Gregory is affiliated with Massachusetts General Physicians Organization Inc and accepts Medicare assignment.

Frequently performed procedures and clinical services include subsequent hospital care with moderate levelof medical decision making, if using time, at least, advance care planning, first, initial hospital care with moderate level of medical decision making, if using time, at least. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

135 Pleasant St
Apt 206

Brookline, MA 024467142

Telephone 6177318131

Medicare Profile & Education

Medical School

Other

Graduation Year

1987

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Brookline, MA

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

39 Yrs +10.7 yrs vs City Avg

City Avg: 28.3 Yrs

State Avg: 29.3 Yrs

Regional Practice Density

63 Specialists

Practicing in Brookline, MA (7127 Statewide)

Telehealth Adoption Rate

28.6% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

76.0% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Gregory (39 Years) 39 Yrs

Brookline Specialty Average (28.3 Years) 28.3 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
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	617	83	$498.37	$123.77
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	248	62	$331.17	$82.00
99497 Advance care planning, first 30 minutes	36	29	$317.67	$78.97
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	26	25	$805.00	$180.49
99239 Hospital discharge day management, more than 30 minutes	23	23	$486.30	$120.64

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	636	86	$299.69	$84.09
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	387	75	$438.60	$126.46
99497 Advance care planning, first 30 minutes	39	36	$316.79	$80.37
99239 Hospital discharge day management, more than 30 minutes	30	30	$440.33	$122.66
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	26	24	$805.00	$184.30

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	647	80	$285.10	$76.17
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	482	83	$408.96	$109.82
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	29	29	$793.97	$211.93
99239 Hospital discharge day management, more than 30 minutes	27	27	$426.33	$113.60
99497 Advance care planning, first 30 minutes	18	18	$313.50	$83.49

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	623	70	$419.37	$111.74
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	549	48	$290.17	$77.74
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	26	26	$807.00	$216.68
99497 Advance care planning, first 30 minutes	19	19	$320.26	$85.13
99239 Hospital discharge day management, more than 30 minutes	16	16	$434.69	$116.18

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	479	72	$291.36	$78.84
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	403	67	$417.66	$113.78
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	22	20	$810.32	$220.33
99239 Hospital discharge day management, more than 30 minutes	18	17	$433.33	$117.65
99497 Advance care planning, first 30 minutes	12	11	$318.50	$86.15

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	763	75	$286.43	$77.59
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	490	78	$411.93	$109.99
99497 Advance care planning, first 30 minutes	30	26	$306.73	$85.06
99239 Hospital discharge day management, more than 30 minutes	28	28	$429.00	$115.99
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	23	23	$800.57	$217.28

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	648	95	$400.01	$112.28
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	371	69	$278.21	$78.43
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	42	41	$779.57	$218.56
99239 Hospital discharge day management, more than 30 minutes	26	25	$418.50	$117.06

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	774	111	$391.33	$110.05
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	457	87	$271.88	$76.15
99239 Hospital discharge day management, more than 30 minutes	54	53	$407.83	$114.51
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	44	43	$762.73	$213.66
99231 Follow-up hospital inpatient care per day, typically 15 minutes	20	13	$146.00	$41.31
99291 Critical care, first 30-74 minutes	13	11	$912.85	$233.58

Medical Specialties & State Licenses

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License MA MA208255

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

Career & Practice History Timeline

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

6 Historical Events

✅

NPI Profile Active July 08, 2007

NPI status registered as active in NPPES database

📍

Updated Practice Location July 08, 2007

Registered at 135 PLEASANT ST, APT 206, BROOKLINE, MA 024467142 (Tel: 6177318131)

📍

Updated Business Mailing Address July 08, 2007

Registered at 135 PLEASANT ST, APT 206, BROOKLINE, MA 024467142 (Tel: 6177318131)

👤

Provider Name / Credentials Updated July 08, 2007

Recorded as MICHAEL GREGORY, MD

🎓

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

Internal Medicine (License #MA208255 in MA)

🟢

Initial NPI Registration & Enumeration July 13, 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: 1265457675

Entity Type:

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

Enumeration Date: July 13, 2006

Last Update: July 08, 2007

Sole Proprietor: No

Update or Correct Profile

Mailing Address

135 Pleasant St, Apt 206

Brookline, MA 024467142

Phone: 6177318131

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.