Active NPI 1750472338 Individual Practitioner Male Practitioner

Dr. Mark Koransky , MD

Surgery • Fremont, CA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Mark Koransky, MD is a certified Surgery practicing in Fremont, CA. With approximately 30 years of clinical experience since graduating from University Of California, San Francisco School Of Medicine in 1996, Dr. Koransky delivers high-quality medical care to the local community at 3200 KEARNEY ST.

Dr. Koransky maintains professional affiliations with Sutter Bay Medical Foundation, Washington Township Medical Foundation and accepts Medicare assignment.

Frequently performed procedures and clinical services include new patient outpatient office visit, established patient outpatient office visit, removal of external hemorrhoids by rubber banding. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

3200 Kearney St

Fremont, CA 945382299

Telephone 5104901222

Associated Practice Facility / Clinic

🏢 Sutter Bay Medical Foundation Facility NPI 1396469813

Medicare Profile & Education

Medical School

University Of California, San Francisco School Of Medicine

Graduation Year

1996

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Surgery in Fremont, CA

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

30 Yrs +2.1 yrs vs City Avg

City Avg: 27.9 Yrs

State Avg: 27.4 Yrs

Regional Practice Density

18 Specialists

Practicing in Fremont, CA (3346 Statewide)

Telehealth Adoption Rate

11.1% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

68.5% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Koransky (30 Years) 30 Yrs

Fremont Specialty Average (27.9 Years) 27.9 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
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	55	55	$380.00	$131.94
99213 Established patient office or other outpatient visit, typically 15 minutes	50	44	$257.00	$109.92
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	42	42	$576.00	$198.02
46221 Removal of external hemorrhoids by rubber banding	22	14	$1099.00	$360.34
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	21	21	$725.00	$259.58
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	19	19	$209.31	$88.22
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	18	18	$379.00	$154.18
19301 Partial removal of breast	17	14	$2464.55	$699.01
99231 Follow-up hospital inpatient care per day, typically 15 minutes	17	16	$124.72	$54.82
49650 Repair of groin hernia using an endoscope	12	12	$2052.00	$551.15
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	11	11	$356.90	$145.38
38900 Lymph node imaging during surgery	11	11	$469.00	$144.40
38525 Biopsy or removal of lymph nodes of under the arm, open procedure	11	11	$895.00	$249.88

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	73	73	$365.00	$134.16
99213 Established patient office or other outpatient visit, typically 15 minutes	46	40	$247.00	$109.05
46221 Removal of external hemorrhoids by rubber banding	35	17	$1047.00	$364.14
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	30	30	$554.00	$197.55
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	26	26	$364.00	$153.39
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	19	19	$697.00	$259.81
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	16	11	$194.03	$88.75
19301 Partial removal of breast	16	15	$2394.00	$731.89
46600 Diagnostic examination of the anus using an endoscope	14	14	$151.00	$151.34
38900 Lymph node imaging during surgery	14	14	$447.00	$146.53
38525 Biopsy or removal of lymph nodes of under the arm, open procedure	14	14	$1035.18	$306.02
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	13	12	$74.00	$30.08
49650 Repair of groin hernia using an endoscope	13	13	$2071.04	$589.84

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	54	54	$354.00	$132.20
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	46	46	$538.00	$191.88
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	42	41	$71.00	$29.44
99213 Established patient office or other outpatient visit, typically 15 minutes	36	34	$240.00	$108.17
46221 Removal of external hemorrhoids by rubber banding	19	13	$992.00	$364.97
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	18	16	$192.33	$79.29
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	15	15	$670.00	$243.01
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	14	14	$353.00	$152.62
99202 New patient office or other outpatient visit, typically 20 minutes	14	14	$247.00	$87.50
47562 Removal of gallbladder using an endoscope	14	14	$2679.07	$740.59
19301 Partial removal of breast	13	11	$2149.48	$723.29
49650 Repair of groin hernia using an endoscope	11	11	$1510.91	$448.34
46600 Diagnostic examination of the anus using an endoscope	11	11	$148.00	$147.95
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	11	11	$605.27	$220.53

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	74	63	$233.00	$109.27
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	60	60	$344.00	$133.69
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	37	35	$69.00	$28.98
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	25	25	$650.00	$260.32
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	24	24	$522.00	$192.67
99202 New patient office or other outpatient visit, typically 20 minutes	22	22	$240.00	$88.12
46600 Diagnostic examination of the anus using an endoscope	17	16	$140.00	$141.27
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	17	16	$343.00	$154.63
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	16	16	$550.19	$225.44
47562 Removal of gallbladder using an endoscope	16	16	$2771.00	$704.80
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	14	12	$175.71	$76.87
19301 Partial removal of breast	12	12	$2269.00	$716.73
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	11	11	$461.00	$214.47
38525 Biopsy or removal of lymph nodes of under the arm, open procedure	11	11	$1149.82	$366.45

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	54	54	$330.00	$129.33
99213 Established patient office or other outpatient visit, typically 15 minutes	40	36	$225.00	$90.32
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	34	34	$500.00	$188.72
99202 New patient office or other outpatient visit, typically 20 minutes	18	18	$230.00	$91.71
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	18	18	$622.00	$235.41
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	17	14	$174.00	$82.55
46600 Diagnostic examination of the anus using an endoscope	14	14	$133.00	$134.13
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	14	14	$329.00	$130.45
47562 Removal of gallbladder using an endoscope	12	12	$2554.33	$632.78

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	57	51	$225.00	$88.69
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	49	49	$500.00	$192.12
99202 New patient office or other outpatient visit, typically 20 minutes	43	43	$230.00	$88.14
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	34	30	$329.00	$129.21
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	28	28	$330.00	$124.75
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	27	20	$165.41	$82.00
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	24	22	$488.54	$228.02
46600 Diagnostic examination of the anus using an endoscope	23	23	$133.00	$117.12
49650 Repair of groin hernia using an endoscope	14	14	$1784.71	$564.30

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	62	52	$220.00	$82.68
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	55	55	$489.00	$187.00
99202 New patient office or other outpatient visit, typically 20 minutes	39	39	$225.00	$87.41
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	35	35	$323.00	$125.93
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	32	22	$172.00	$77.68
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	31	29	$322.00	$120.82
46600 Diagnostic examination of the anus using an endoscope	19	19	$133.00	$111.98
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	17	17	$465.82	$221.87
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	16	16	$608.00	$237.21
49650 Repair of groin hernia using an endoscope	15	15	$1651.65	$525.26
46221 Removal of external hemorrhoids by rubber banding	13	11	$968.00	$329.99
36561 Insertion of central venous catheter and implanted device for infusion beneath the skin, patient 5 years or older	12	12	$6063.00	$361.76

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	58	58	$478.00	$185.72
99213 Established patient office or other outpatient visit, typically 15 minutes	38	33	$215.00	$79.48
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	33	33	$316.00	$123.58
99202 New patient office or other outpatient visit, typically 20 minutes	24	24	$220.00	$86.78
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	24	21	$167.71	$79.39
47562 Removal of gallbladder using an endoscope	21	21	$2360.72	$677.82
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	19	18	$315.00	$112.73
46600 Diagnostic examination of the anus using an endoscope	17	16	$133.00	$107.98
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	16	16	$469.13	$222.44
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	16	14	$131.00	$51.36
49650 Repair of groin hernia using an endoscope	14	14	$1969.71	$593.91
36561 Insertion of central venous catheter and implanted device for infusion beneath the skin, patient 5 years or older	13	13	$5905.00	$373.90
46221 Removal of external hemorrhoids by rubber banding	12	12	$942.00	$320.10

Medical Specialties & State Licenses

CMS Verified: 2020-05-20

Surgery Primary Specialty

NUCC Taxonomy Code: 208600000X

State License CA A63039

A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

Hospital & Practice Group Affiliations

Sutter Bay Medical Foundation

3200 Kearney St, Fremont, CA 945382299

Phone: 5104901222

Sutter Bay Medical Foundation

2000 Mowry Ave, Fremont, CA 945381716

Phone: 5107977111

Washington Township Medical Foundation

2000 Mowry Ave, Fremont, CA 945381716

Phone: 5102481000

Washington Township Medical Foundation

39500 Fremont Blvd, Fremont, CA 945382101

Phone: 5106879510

Practice Associates & Co-Workers

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

40 Associated Practitioners

Dr. Lakshmi Srinivasan , MD

Internal Medicine - Endocrinology, Diabetes & Metabolism

NPI 1003002049

Doctor of Medicine (M.D.)

Thomas Kim

Orthopaedic Surgery - Hand Surgery

NPI 1003105032

Dr. Stephanie Chiang , MD

Pediatrics

NPI 1003986084

Doctor of Medicine (M.D.)

Dr. Steven Bartis , DPM

Podiatrist

NPI 1003989559

Doctor of Podiatric Medicine

Dr. Nancy Wang , MD

Otolaryngology - Plastic Surgery within the Head & Neck

NPI 1013337492

Doctor of Medicine (M.D.)

Zahra Pirani

Emergency Medicine - Pediatric Emergency Medicine

NPI 1013350529

Career & Practice History Timeline

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

7 Historical Events

📍

Updated Business Mailing Address May 20, 2020

Registered at 325 DISTEL CIR, LOS ALTOS, CA 940221408 (Tel: 5104981222)

✅

NPI Profile Active December 07, 2011

NPI status registered as active in NPPES database

📍

Updated Practice Location December 07, 2011

Registered at 3200 KEARNEY ST, FREMONT, CA 945382299 (Tel: 5104901222)

📍

Updated Business Mailing Address December 07, 2011

Registered at 2350 W. EL CAMINO REAL, 2ND FLOOR, MOUNTAIN VIEW, CA 940406203

👤

Provider Name / Credentials Updated December 07, 2011

Recorded as MARK KORANSKY, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) December 07, 2011

Surgery (License #A63039 in CA)

🟢

Initial NPI Registration & Enumeration September 27, 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: 1750472338

Entity Type:

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

Enumeration Date: September 27, 2006

Last Update: May 20, 2020

Sole Proprietor: No

Update or Correct Profile

Mailing Address

325 Distel Cir

Los Altos, CA 940221408

Phone: 5104981222

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).

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