Active NPI 1659668580 Individual Practitioner Male Practitioner

Dr. Keith William Brennan , MD

Internal Medicine • Providence, RI

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Keith Brennan, MD is a certified Internal Medicine practicing in Providence, RI. With approximately 15 years of clinical experience since completing medical education in 2011, Dr. Brennan delivers high-quality medical care to the local community at 825 CHALKSTONE AVE.

Dr. Brennan is affiliated with Mount Sinai School Of Medicine 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, hospital discharge day management, more than, 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

825 Chalkstone Ave

Providence, RI 029084728

Telephone 4014562145

Fax 4014566809

Associated Practice Facility / Clinic

🏢 Roger Williams Medical Center Facility NPI 1649278250

Medicare Profile & Education

Medical School

Other

Graduation Year

2011

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Providence, RI

Established Specialist (10-20 Yrs)

Practitioner Clinical Experience

15 Yrs -2.8 yrs vs City Avg

City Avg: 17.8 Yrs

State Avg: 27.9 Yrs

Regional Practice Density

523 Specialists

Practicing in Providence, RI (1079 Statewide)

Telehealth Adoption Rate

9.4% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

70.2% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Brennan (15 Years) 15 Yrs

Providence Specialty Average (17.8 Years) 17.8 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	695	272	$385.00	$130.81
99239 Hospital discharge day management, more than 30 minutes	299	279	$395.00	$125.89
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	143	92	$275.00	$86.76
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	121	117	$725.00	$190.67
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	63	63	$500.00	$143.87
99497 Advance care planning, first 30 minutes	18	18	$275.00	$83.51

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	387	151	$384.56	$138.74
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	151	148	$719.48	$200.95
99239 Hospital discharge day management, more than 30 minutes	147	141	$396.41	$133.67
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	140	90	$275.83	$92.20
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	58	58	$494.93	$152.88
99497 Advance care planning, first 30 minutes	21	20	$275.00	$87.57

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	695	279	$384.83	$119.69
99239 Hospital discharge day management, more than 30 minutes	213	206	$393.31	$123.14
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	185	138	$269.84	$83.66
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	81	80	$722.17	$234.32
99217 Hospital observation care on day of discharge	58	55	$290.00	$84.67
99226 Subsequent observation care, typically 35 minutes per day	38	38	$390.00	$117.82
99220 Hospital observation care, typically 70 minutes	30	29	$645.00	$210.43
99497 Advance care planning, first 30 minutes	28	28	$275.00	$91.44
99356 Prolonged inpatient or observation hospital service, first hour	24	20	$215.00	$105.93
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	16	16	$494.01	$161.26
99225 Subsequent observation care, typically 25 minutes per day	12	12	$260.00	$83.69

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	680	300	$384.30	$122.09
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	249	164	$273.40	$84.27
99239 Hospital discharge day management, more than 30 minutes	243	232	$394.51	$124.77
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	173	169	$725.00	$237.00
99220 Hospital observation care, typically 70 minutes	44	44	$645.00	$215.81
99217 Hospital observation care on day of discharge	39	39	$283.99	$86.07
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	27	26	$492.90	$162.95
99238 Hospital discharge day management, 30 minutes or less	14	14	$275.00	$86.03
99226 Subsequent observation care, typically 35 minutes per day	13	13	$390.00	$122.55

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	398	214	$362.83	$119.86
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	381	204	$251.04	$84.03
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	254	249	$699.59	$238.37
99239 Hospital discharge day management, more than 30 minutes	167	162	$367.06	$124.12
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	123	121	$478.19	$163.06
99220 Hospital observation care, typically 70 minutes	51	51	$641.22	$218.05
99217 Hospital observation care on day of discharge	32	32	$245.66	$86.31
99238 Hospital discharge day management, 30 minutes or less	24	24	$248.37	$87.16
99219 Hospital observation care, typically 50 minutes	18	18	$443.10	$160.61
99231 Follow-up hospital inpatient care per day, typically 15 minutes	16	14	$141.26	$46.86

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	588	267	$307.27	$118.01
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	407	243	$250.00	$82.99
99239 Hospital discharge day management, more than 30 minutes	220	213	$349.45	$121.58
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	175	167	$576.69	$230.89
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	49	49	$409.47	$157.13
99217 Hospital observation care on day of discharge	47	46	$244.68	$83.73
99231 Follow-up hospital inpatient care per day, typically 15 minutes	23	14	$124.35	$45.09
99219 Hospital observation care, typically 50 minutes	22	22	$464.77	$155.14
99220 Hospital observation care, typically 70 minutes	21	21	$634.29	$211.51
99305 Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes	20	20	$515.00	$148.74
99226 Subsequent observation care, typically 35 minutes per day	13	13	$360.38	$119.05
99225 Subsequent observation care, typically 25 minutes per day	11	11	$241.36	$83.42

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	568	240	$268.00	$119.00
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	460	229	$250.00	$83.21
99239 Hospital discharge day management, more than 30 minutes	215	208	$330.00	$123.18
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	127	127	$534.00	$232.35
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	47	47	$384.00	$154.54
99220 Hospital observation care, typically 70 minutes	42	40	$630.00	$212.63
99217 Hospital observation care on day of discharge	41	41	$250.00	$83.94
99226 Subsequent observation care, typically 35 minutes per day	19	19	$355.00	$119.51
99231 Follow-up hospital inpatient care per day, typically 15 minutes	16	13	$116.00	$44.97
99219 Hospital observation care, typically 50 minutes	13	13	$460.00	$155.69
99306 Initial nursing facility visit, typically 45 minutes per day	11	11	$575.00	$190.05
99316 Nursing facility discharge management, more than 30 minutes	11	11	$360.00	$121.37

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	538	279	$250.07	$82.06
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	324	174	$268.00	$119.06
99239 Hospital discharge day management, more than 30 minutes	256	240	$330.00	$122.35
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	135	128	$534.00	$232.04
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	80	79	$384.00	$157.26
99217 Hospital observation care on day of discharge	46	46	$250.00	$83.54
99219 Hospital observation care, typically 50 minutes	42	42	$460.00	$154.98
99238 Hospital discharge day management, 30 minutes or less	22	22	$242.00	$82.82
99225 Subsequent observation care, typically 25 minutes per day	18	18	$245.00	$82.90
99220 Hospital observation care, typically 70 minutes	13	13	$630.00	$211.73
99316 Nursing facility discharge management, more than 30 minutes	13	13	$360.00	$120.98
99226 Subsequent observation care, typically 35 minutes per day	11	11	$355.00	$119.56

Medical Specialties & State Licenses

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License RI LP02331

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

Mount Sinai School Of Medicine

1 Healthy Way, Oceanside, NY 115721551

Phone: 5166323670

Practice Associates & Co-Workers

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

2 Associated Practitioners

Dr. Anne Bauman , MD

Internal Medicine

NPI 1730281346

Doctor of Medicine (M.D.)

Dr. Leonard Mannarelli , DO

Internal Medicine

NPI 1982770764

Doctor of Osteopathic Medicine (D.O.)

Career & Practice History Timeline

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

6 Historical Events

✅

NPI Profile Active June 29, 2011

NPI status registered as active in NPPES database

📍

Updated Practice Location June 29, 2011

Registered at 825 CHALKSTONE AVE, PROVIDENCE, RI 029084728 (Tel: 4014562145)

📍

Updated Business Mailing Address June 29, 2011

Registered at 825 CHALKSTONE AVE, PROVIDENCE, RI 029084728 (Tel: 4014562000)

👤

Provider Name / Credentials Updated June 29, 2011

Recorded as KEITH BRENNAN, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) June 29, 2011

Internal Medicine (License #LP02331 in RI)

🟢

Initial NPI Registration & Enumeration June 29, 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: 1659668580

Entity Type:

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

Enumeration Date: June 29, 2011

Last Update: June 29, 2011

Sole Proprietor: No

Update or Correct Profile

Mailing Address

825 Chalkstone Ave

Providence, RI 029084728

Phone: 4014562000

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.