Active NPI 1972883197 Individual Practitioner Male Practitioner

Dr. Muhammad Janisar , MD

Internal Medicine • Cambridge, MA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Muhammad Janisar, MD is a certified Internal Medicine practicing in Cambridge, MA. With approximately 21 years of clinical experience since completing medical education in 2005, Dr. Janisar delivers high-quality medical care to the local community at 330 MOUNT AUBURN ST.

Dr. Janisar maintains professional affiliations with Beth Israel Lahey Health Primary Care, Inc, Emerson Practice Associates, Inc, Lahey Clinic Inc and accepts Medicare assignment.

Frequently performed procedures and clinical services include initial hospital care with moderate level of medical decision making, if using time, at least, initial hospital care with straightforward or low-level medical decision making, if using time, at least, subsequent hospital care with moderate levelof 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

330 Mount Auburn St
Department Of Medicine

Cambridge, MA 021385502

Telephone 6174923500

Associated Practice Facility / Clinic

🏢 Mount Auburn Hospital Facility NPI 1689670259

Medicare Profile & Education

Medical School

Other

Graduation Year

2005

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Cambridge, MA

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

21 Yrs -1.6 yrs vs City Avg

City Avg: 22.6 Yrs

State Avg: 29.3 Yrs

Regional Practice Density

309 Specialists

Practicing in Cambridge, MA (7127 Statewide)

Telehealth Adoption Rate

23.9% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

68.3% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Janisar (21 Years) 21 Yrs

Cambridge Specialty Average (22.6 Years) 22.6 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
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	182	178	$585.50	$177.90
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	140	137	$406.61	$129.75
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	92	60	$247.40	$79.54
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	68	53	$371.16	$121.07
99239 Hospital discharge day management, more than 30 minutes	30	30	$359.37	$114.71
99238 Hospital discharge day management, 30 minutes or less	14	14	$257.36	$83.22

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	242	242	$386.07	$133.85
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	178	174	$497.41	$182.75
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	15	15	$232.67	$82.64

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	129	127	$458.21	$210.26
99220 Hospital observation care, typically 70 minutes	70	68	$380.06	$191.42
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	64	62	$381.31	$141.51
99219 Hospital observation care, typically 50 minutes	48	47	$356.96	$137.72

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	109	108	$444.24	$216.68
99219 Hospital observation care, typically 50 minutes	53	52	$324.11	$144.71
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	43	43	$359.33	$146.35
99220 Hospital observation care, typically 70 minutes	43	42	$392.35	$196.19

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	109	108	$429.49	$220.30
99219 Hospital observation care, typically 50 minutes	56	56	$326.00	$147.39
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	47	47	$355.43	$149.21
99220 Hospital observation care, typically 70 minutes	28	28	$380.89	$201.38
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	15	11	$205.00	$113.93

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	71	71	$509.32	$215.13
99219 Hospital observation care, typically 50 minutes	53	52	$385.75	$145.71
99220 Hospital observation care, typically 70 minutes	50	50	$405.36	$199.31
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	49	49	$405.47	$146.99
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	25	18	$215.00	$111.57
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	19	11	$142.00	$78.10

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	262	109	$201.07	$110.00
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	99	99	$396.68	$214.37
99220 Hospital observation care, typically 70 minutes	86	83	$366.00	$196.67
99239 Hospital discharge day management, more than 30 minutes	81	77	$205.77	$114.65
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	46	26	$142.78	$76.69
99226 Subsequent observation care, typically 35 minutes per day	28	20	$202.86	$110.89
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	26	26	$361.73	$143.10
99217 Hospital observation care on day of discharge	17	16	$140.88	$77.86
99219 Hospital observation care, typically 50 minutes	15	15	$313.80	$142.93

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	359	150	$183.70	$107.79
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	108	108	$346.56	$209.02
99239 Hospital discharge day management, more than 30 minutes	95	93	$185.00	$112.24
99220 Hospital observation care, typically 70 minutes	76	75	$369.13	$192.01
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	40	23	$128.00	$74.62
99217 Hospital observation care on day of discharge	35	34	$134.00	$75.97
99226 Subsequent observation care, typically 35 minutes per day	29	23	$149.00	$108.82
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	24	24	$321.75	$140.15
99219 Hospital observation care, typically 50 minutes	19	19	$308.21	$139.67
99225 Subsequent observation care, typically 25 minutes per day	15	11	$100.00	$75.54

Medical Specialties & State Licenses

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License MA 257858

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

Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc

330 Mount Auburn St, Cambridge, MA 021385502

Phone: 7819839088

Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc

330 Brookline Ave, Boston, MA 022155400

Emerson Practice Associates, Inc

133 Old Rd To 9 Acre Cor, Concord, MA 017424159

Phone: 9782873020

Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc

330 Brookline Ave, Boston, MA 022155400

Phone: 6177548612

Beth Israel Lahey Health Primary Care, Inc

15 Railroad Ave, South Hamilton, MA 019822218

Phone: 9784687381

Lahey Clinic Inc

41 Mall Rd, Burlington, MA 018050001

Phone: 7817448085

Practice Associates & Co-Workers

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

40 Associated Practitioners

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Student in an Organized Health Care Education/Training Program

NPI 1013515279

Doctor of Medicine (M.D.)

Pavlina Chrysafi

Student in an Organized Health Care Education/Training Program

NPI 1023767159

Dr. Sena Cakir Colak , MD

Student in an Organized Health Care Education/Training Program

NPI 1023858628

Doctor of Medicine (M.D.)

Dr. Donald Romanelli , MD

Radiology - Diagnostic Radiology

NPI 1033105754

Doctor of Medicine (M.D.)

Dr. Alexandra Chabrerie , MD

Internal Medicine

NPI 1033260930

Doctor of Medicine (M.D.)

Dr. Liyang Chen , MD

Internal Medicine

NPI 1033558945

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

6 Historical Events

✅

NPI Profile Active November 05, 2015

NPI status registered as active in NPPES database

📍

Updated Practice Location November 05, 2015

Registered at 330 MOUNT AUBURN ST, DEPARTMENT OF MEDICINE, CAMBRIDGE, MA 021385502 (Tel: 6174923500)

📍

Updated Business Mailing Address November 05, 2015

Registered at 330 MOUNT AUBURN ST, DEPARTMENT OF MEDICINE, CAMBRIDGE, MA 021385502 (Tel: 2515546518)

👤

Provider Name / Credentials Updated November 05, 2015

Recorded as MUHAMMAD JANISAR, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) November 05, 2015

Internal Medicine (License #257858 in MA)

🟢

Initial NPI Registration & Enumeration August 18, 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: 1972883197

Entity Type:

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

Enumeration Date: August 18, 2011

Last Update: November 05, 2015

Sole Proprietor: No

Update or Correct Profile

Mailing Address

330 Mount Auburn St, Department Of Medicine

Cambridge, MA 021385502

Phone: 2515546518

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.