Active NPI 1497932461 Individual Practitioner Male Practitioner

Dr. Sameer Mirza Mazhar , MD

Internal Medicine - Gastroenterology • Aurora, IL

✓ Accepts Medicare Assignment Telehealth Available

Professional Overview & Biography Verified Profile Summary

Dr. Sameer Mazhar, MD is a certified Internal Medicine - Gastroenterology practicing in Aurora, IL. With approximately 24 years of clinical experience since graduating from Northwestern University Feinberg Medical School in 2002, Dr. Mazhar delivers high-quality medical care to the local community at 1221 N HIGHLAND AVE.

Dr. Mazhar is affiliated with Northwestern Medical Faculty Foundation and accepts Medicare assignment . Telehealth and virtual consultation options are available for eligible patients.

Frequently performed procedures and clinical services include biopsy of large bowel using an endoscope, removal of polyps or growths of large bowel using an endoscope with mechanical snare, 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

1221 N Highland Ave

Aurora, IL 605061404

Telephone 6308598700

Associated Practice Facility / Clinic

🏢 Dreyer Ambulatory Surgery Center, Llc Facility NPI 1396896684

Medicare Profile & Education

Medical School

Northwestern University Feinberg Medical School

Graduation Year

2002

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

Telehealth Services Available

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine - Gastroenterology in Aurora, IL

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

24 Yrs -1.0 yrs vs City Avg

City Avg: 25.0 Yrs

State Avg: 28.2 Yrs

Regional Practice Density

23 Specialists

Practicing in Aurora, IL (915 Statewide)

Telehealth Adoption Rate

39.1% Regional Adoption

✓ Offers Virtual Consultations

Medicare Pricing Discount

81.6% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Mazhar (24 Years) 24 Yrs

Aurora Specialty Average (25.0 Years) 25.0 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
45380 Biopsy of large bowel using an endoscope	123	119	$1291.00	$41.15
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	117	115	$1535.00	$254.40
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	109	58	$311.00	$120.27
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	108	96	$900.00	$93.58
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	78	63	$434.00	$182.26
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	78	78	$626.38	$224.43
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	54	50	$613.00	$175.59
43251 Removal of polyps or growths of esophagus, stomach, and/or upper small bowel using an endoscope with mechanical snare	18	18	$1302.00	$157.49
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	14	14	$517.29	$173.02
G0500 Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito	13	13	$33.00	$6.15
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope	12	12	$785.00	$115.62
91200 Measurement of liver stiffness	11	11	$207.00	$31.50

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
45380 Biopsy of large bowel using an endoscope	114	113	$1029.61	$36.57
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	112	111	$1233.29	$258.16
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	98	89	$767.63	$95.63
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	74	74	$536.73	$226.81
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	72	48	$255.06	$122.83
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	71	64	$345.15	$183.98
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	60	58	$504.92	$179.03
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	29	29	$418.03	$173.60
43251 Removal of polyps or growths of esophagus, stomach, and/or upper small bowel using an endoscope with mechanical snare	15	15	$1015.47	$142.32
91200 Measurement of liver stiffness	13	13	$144.85	$32.11
99443 Telephone medical discussion with physician, 21-30 minutes	12	11	$250.00	$131.75

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
45380 Biopsy of large bowel using an endoscope	146	146	$1226.76	$72.85
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	127	119	$957.23	$79.09
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	120	108	$328.27	$189.43
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	112	112	$1574.09	$265.34
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	72	72	$457.13	$231.41
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	56	36	$233.93	$105.92
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	40	39	$419.13	$205.76
43251 Removal of polyps or growths of esophagus, stomach, and/or upper small bowel using an endoscope with mechanical snare	33	33	$1076.85	$157.73
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope	11	11	$867.00	$118.59
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	11	11	$344.55	$177.74

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	173	151	$319.29	$185.34
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	162	148	$992.00	$93.20
45380 Biopsy of large bowel using an endoscope	154	154	$1312.00	$77.96
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	122	122	$1689.00	$257.72
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	121	62	$241.00	$104.55
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	92	92	$448.00	$236.22
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	67	62	$437.00	$209.48
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	32	32	$341.00	$174.97
43251 Removal of polyps or growths of esophagus, stomach, and/or upper small bowel using an endoscope with mechanical snare	24	24	$1054.00	$145.82
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	19	16	$168.00	$75.16
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	15	15	$224.00	$137.74

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	141	133	$992.00	$93.55
45380 Biopsy of large bowel using an endoscope	135	135	$1314.43	$51.05
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	126	112	$304.78	$153.17
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	116	116	$1699.92	$269.62
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	97	54	$241.00	$110.44
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	64	60	$437.00	$211.60
99442 Telephone medical discussion with physician, 11-20 minutes	43	43	$102.00	$79.82
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	43	43	$427.00	$216.77
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	30	30	$213.00	$109.64
43251 Removal of polyps or growths of esophagus, stomach, and/or upper small bowel using an endoscope with mechanical snare	28	27	$1036.00	$156.18
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	28	24	$168.00	$73.90
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	25	25	$341.00	$175.57
99443 Telephone medical discussion with physician, 21-30 minutes	22	22	$146.00	$109.75

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	181	151	$301.00	$153.97
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	171	159	$992.00	$92.74
45380 Biopsy of large bowel using an endoscope	154	154	$1312.00	$79.74
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	123	122	$1689.00	$283.04
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	72	41	$241.00	$109.81
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	61	60	$430.00	$213.89
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	58	58	$427.00	$219.31
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	57	54	$213.00	$113.77
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	34	34	$341.00	$174.87
43251 Removal of polyps or growths of esophagus, stomach, and/or upper small bowel using an endoscope with mechanical snare	23	23	$788.00	$173.62
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	17	16	$168.00	$76.89

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	175	152	$289.89	$151.99
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	154	141	$961.43	$111.35
45380 Biopsy of large bowel using an endoscope	144	144	$1277.67	$91.19
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	101	101	$1621.59	$283.00
36415 Insertion of needle into vein for collection of blood sample	89	67	$22.00	$2.94
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	87	85	$204.03	$112.03
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	69	67	$418.70	$213.48
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	65	65	$328.60	$174.01
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	53	53	$417.94	$218.70
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count	46	38	$45.65	$9.40
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	44	34	$158.00	$76.49
85610 Blood test, clotting time	43	33	$34.00	$4.66
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	42	29	$229.26	$109.46
85730 Coagulation assessment blood test, plasma or whole blood	39	31	$50.00	$7.12
80076 Liver function blood test panel	37	25	$64.65	$9.89
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope	31	30	$807.32	$121.38
80053 Blood test, comprehensive group of blood chemicals	24	21	$75.67	$12.78
82728 Ferritin (blood protein) level	17	14	$89.00	$16.49
83550 Iron binding capacity	16	13	$47.94	$10.57
83540 Iron level	16	13	$31.63	$7.83
82565 Blood creatinine level	13	13	$31.23	$6.20
43251 Removal of polyps or growths of esophagus, stomach, and/or upper small bowel using an endoscope with mechanical snare	12	12	$749.33	$173.15

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	171	149	$948.00	$106.41
45380 Biopsy of large bowel using an endoscope	147	145	$1264.00	$104.70
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	147	119	$279.44	$150.03
36415 Insertion of needle into vein for collection of blood sample	114	72	$22.00	$2.94
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	93	90	$1597.00	$277.29
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	86	76	$193.00	$111.53
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	68	68	$317.76	$171.28
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	60	37	$148.00	$75.58
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	58	55	$400.00	$213.08
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count	53	44	$45.00	$10.45
80076 Liver function blood test panel	48	29	$64.00	$10.93
85610 Blood test, clotting time	45	37	$34.00	$5.28
85730 Coagulation assessment blood test, plasma or whole blood	43	33	$50.00	$8.08
80053 Blood test, comprehensive group of blood chemicals	26	20	$75.00	$13.72
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	24	24	$401.42	$218.00
82565 Blood creatinine level	23	22	$31.00	$6.63
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	22	19	$212.00	$109.50
45378 Diagnostic exam of large bowel using a flexible endoscope	16	16	$1124.00	$207.00
87493 Detection test for clostridium difficile	15	13	$101.00	$47.18
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope	15	15	$793.00	$132.30
43251 Removal of polyps or growths of esophagus, stomach, and/or upper small bowel using an endoscope with mechanical snare	12	12	$672.00	$190.81

Medical Specialties & State Licenses

CMS Verified: 2021-11-18

Internal Medicine - Gastroenterology Primary Specialty

NUCC Taxonomy Code: 207RG0100X

State License IL 036-114152

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

Internal Medicine

NUCC Taxonomy Code: 207R00000X

State License CA 95975

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.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

036-114152 (IL)

Commercial Insurance / Payer ID Bcbs#

04515143 (IL)

Hospital & Practice Group Affiliations

Northwestern Medical Faculty Foundation

25 N Winfield Rd, Winfield, IL 601901222

Phone: 6309331600

Practice Associates & Co-Workers

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

40 Associated Practitioners

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Surgery

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Doctor of Medicine (M.D.)

Rachel Bullar , PT

Physical Therapist

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Physical Therapist

Dr. Sandy Kwak , MD

Radiology - Diagnostic Radiology

NPI 1033148291

Doctor of Medicine (M.D.)

Dr. Ravi Prakash , MD

Internal Medicine - Gastroenterology

NPI 1053575399

Doctor of Medicine (M.D.)

Dr. Linda Hardie , AuD

Audiologist

NPI 1073618013

Doctor of Audiology

Manjusha Potdukhe , PT

Physical Therapist

NPI 1083882393

Physical Therapist

Career & Practice History Timeline

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

11 Historical Events

✅

NPI Profile Active February 21, 2017

NPI status registered as active in NPPES database

📍

Updated Business Mailing Address February 21, 2017

Registered at 2357 SEQUOIA DR, AURORA, IL 605066222 (Tel: 6308596800)

📍

Updated Practice Location February 21, 2017

Registered at 1221 N HIGHLAND AVE, AURORA, IL 605061404 (Tel: 6308598700)

👤

Provider Name / Credentials Updated February 21, 2017

Recorded as SAMEER MAZHAR, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) February 21, 2017

Internal Medicine (License #95975 in CA)

✅

NPI Profile Active February 15, 2011

NPI status registered as active in NPPES database

📍

Updated Practice Location February 15, 2011

Registered at 1221 N HIGHLAND AVE, AURORA, IL 605061404 (Tel: 6308598700)

📍

Updated Business Mailing Address February 15, 2011

Registered at 1870 W GALENA BLVD, AURORA, IL 605064356 (Tel: 6308596800)

👤

Provider Name / Credentials Updated February 15, 2011

Recorded as SAMEER MAZHAR, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) February 15, 2011

Internal Medicine (License #95975 in CA)

🟢

Initial NPI Registration & Enumeration January 22, 2008

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: 1497932461

Entity Type:

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

Enumeration Date: January 22, 2008

Last Update: November 18, 2021

Sole Proprietor: No

Update or Correct Profile

Mailing Address

2357 Sequoia Dr

Aurora, IL 605066222

Phone: 6308596800

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.