Active NPI 1023049590 Individual Practitioner Male Practitioner

Dr. Eugene Young Lee , MD

Specialist • San Mateo, CA

✓ Accepts Medicare Assignment Telehealth Available

Professional Overview & Biography Verified Profile Summary

Dr. Eugene Lee, MD is a certified Specialist practicing in San Mateo, CA. With approximately 28 years of clinical experience since graduating from New York University School Of Medicine in 1998, Dr. Lee delivers high-quality medical care to the local community at 100 SOUTH ELLSWORTH AVENUE.

Dr. Lee is affiliated with Peninsula Gastrointestinal 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, established patient outpatient office visit, removal of polyps or growths of large bowel using an endoscope with mechanical snare. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

100 South Ellsworth Avenue
Suite 507

San Mateo, CA 944012708

Telephone 6503427432

Fax 6503423239

Associated Practice Facility / Clinic

🏢 Onuma And Lee Md's Facility NPI 1427054733

Medicare Profile & Education

Medical School

New York University School Of Medicine

Graduation Year

1998

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

Telehealth Services Available

Specialty Benchmarks & Practice Insights

Comparative analytics for Specialist in San Mateo, CA

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

28 Yrs -2.3 yrs vs City Avg

City Avg: 30.3 Yrs

State Avg: 38.0 Yrs

Regional Practice Density

18 Specialists

Practicing in San Mateo, CA (6446 Statewide)

Telehealth Adoption Rate

11.1% Regional Adoption

✓ Offers Virtual Consultations

Medicare Pricing Discount

63.5% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Lee (28 Years) 28 Yrs

San Mateo Specialty Average (30.3 Years) 30.3 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
45380 Biopsy of large bowel using an endoscope	117	117	$850.00	$104.89
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	98	90	$250.00	$153.86
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	98	98	$998.47	$288.64
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	85	85	$325.00	$204.31
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	69	45	$200.00	$91.53
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	66	66	$750.00	$115.09
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	51	50	$325.00	$197.53
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	50	50	$230.00	$135.42
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	35	35	$331.43	$215.24
99213 Established patient office or other outpatient visit, typically 15 minutes	27	25	$200.00	$110.44
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	21	21	$582.14	$209.76
99442 Telephone medical discussion with physician, 11-20 minutes	20	19	$170.00	$76.18

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
45380 Biopsy of large bowel using an endoscope	126	125	$850.00	$131.91
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	95	86	$229.47	$150.28
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	84	84	$281.61	$195.47
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	78	75	$750.00	$123.44
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	74	74	$1000.00	$282.31
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	63	48	$200.00	$89.67
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	55	54	$325.00	$196.54
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	52	52	$230.00	$130.19
99442 Telephone medical discussion with physician, 11-20 minutes	35	35	$150.00	$74.95
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	32	32	$575.00	$207.58
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	31	31	$296.77	$213.69
99213 Established patient office or other outpatient visit, typically 15 minutes	14	13	$157.14	$104.17
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope	13	13	$600.00	$133.80
91110 Imaging of digestive tract done from the inside of the digestive tract	11	11	$2500.00	$1017.40

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
45380 Biopsy of large bowel using an endoscope	123	122	$850.00	$119.83
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	107	107	$280.00	$172.65
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	94	81	$225.00	$133.70
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	88	88	$1000.00	$287.14
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	79	77	$750.00	$125.88
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	71	71	$230.00	$109.24
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	69	45	$178.26	$79.97
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	62	61	$325.00	$221.94
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	31	31	$250.81	$198.88
99213 Established patient office or other outpatient visit, typically 15 minutes	24	24	$150.00	$81.39
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	23	23	$575.00	$209.20
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	21	18	$100.00	$5.91
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope	20	20	$600.00	$136.73

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	123	100	$225.00	$133.38
45380 Biopsy of large bowel using an endoscope	121	121	$850.00	$116.60
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	109	109	$280.00	$183.98
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	98	98	$998.47	$290.23
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	94	54	$150.00	$81.12
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	78	78	$230.00	$117.04
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	76	74	$750.00	$118.46
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	70	69	$325.00	$226.20
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	42	41	$250.00	$197.84
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	34	33	$575.00	$209.22
99213 Established patient office or other outpatient visit, typically 15 minutes	33	32	$150.00	$86.65
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	28	26	$100.00	$6.00
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope	17	16	$600.00	$128.72

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	116	58	$150.00	$80.65
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	100	88	$225.00	$115.25
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	95	95	$280.00	$181.40
45380 Biopsy of large bowel using an endoscope	93	93	$850.00	$132.02
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	76	73	$750.00	$122.91
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	65	65	$1000.00	$272.99
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	59	55	$325.00	$228.38
99213 Established patient office or other outpatient visit, typically 15 minutes	46	43	$150.00	$79.21
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	39	39	$230.00	$106.59
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	30	26	$100.00	$6.18
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	30	30	$251.00	$165.12
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	22	22	$581.82	$215.61
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope	19	18	$600.00	$139.54
45378 Diagnostic exam of large bowel using a flexible endoscope	12	12	$725.00	$207.13

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	170	79	$150.00	$82.00
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	130	112	$225.00	$129.21
45380 Biopsy of large bowel using an endoscope	109	109	$850.00	$109.11
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	91	88	$325.00	$228.00
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	86	86	$750.00	$127.59
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	80	80	$280.00	$190.00
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	78	78	$1000.00	$272.42
99213 Established patient office or other outpatient visit, typically 15 minutes	75	67	$150.00	$86.84
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	57	57	$230.00	$128.18
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	54	44	$100.00	$6.08
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	35	35	$575.00	$213.49
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	30	30	$249.33	$166.46
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope	26	25	$600.00	$142.82
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	$355.00	$240.27

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
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	171	165	$129.82	$5.98
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	163	134	$225.00	$126.45
45380 Biopsy of large bowel using an endoscope	129	127	$850.00	$107.60
99153 Use of a drug to induce depression of consciousness by physician performing a procedure, each additional 15 minutes	115	90	$50.00	$14.23
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	101	56	$150.00	$81.18
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	97	96	$1000.00	$282.50
99213 Established patient office or other outpatient visit, typically 15 minutes	96	87	$150.00	$85.89
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	87	87	$280.00	$190.18
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	77	76	$750.00	$125.99
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	56	55	$316.96	$225.95
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	45	45	$230.00	$125.99
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	24	24	$250.00	$168.97
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope	18	16	$600.00	$137.72
45378 Diagnostic exam of large bowel using a flexible endoscope	17	17	$725.00	$211.41

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
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	199	188	$184.12	$6.00
99153 Use of a drug to induce depression of consciousness by physician performing a procedure, each additional 15 minutes	163	112	$50.00	$14.44
99213 Established patient office or other outpatient visit, typically 15 minutes	161	128	$150.00	$86.60
45380 Biopsy of large bowel using an endoscope	116	116	$756.46	$113.96
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	105	93	$225.00	$126.92
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	87	87	$903.70	$268.12
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	77	76	$659.07	$125.77
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	75	39	$150.00	$80.87
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	71	71	$280.00	$190.29
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	46	46	$230.00	$126.89
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	45	43	$261.67	$226.39
45378 Diagnostic exam of large bowel using a flexible endoscope	17	17	$725.00	$200.00
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	$355.00	$238.54
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope	12	11	$543.79	$142.37

Medical Specialties & State Licenses

Specialist Primary Specialty

NUCC Taxonomy Code: 174400000X

State License CA A87261

An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

Hospital & Practice Group Affiliations

Peninsula Gastrointestinal

100 S Ellsworth Ave, San Mateo, CA 944013929

Phone: 6503427432

Practice Associates & Co-Workers

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

1 Associated Practitioners

Dr. Edward Onuma , MD, PhD

Specialist

NPI 1477559722

Doctor of Medicine (M.D.), Doctor of Philosophy (Ph.D.)

Career & Practice History Timeline

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

6 Historical Events

✅

NPI Profile Active February 21, 2008

NPI status registered as active in NPPES database

📍

Updated Practice Location February 21, 2008

Registered at 100 SOUTH ELLSWORTH AVENUE, SUITE 507, SAN MATEO, CA 944012708 (Tel: 6503427432)

📍

Updated Business Mailing Address February 21, 2008

Registered at 100 S ELLSWORTH AVE STE 507, SAN MATEO, CA 944013929 (Tel: 6503427432)

👤

Provider Name / Credentials Updated February 21, 2008

Recorded as EUGENE LEE, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) February 21, 2008

Specialist (License #A87261 in CA)

🟢

Initial NPI Registration & Enumeration July 05, 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: 1023049590

Entity Type:

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

Enumeration Date: July 05, 2006

Last Update: February 21, 2008

Sole Proprietor: No

Update or Correct Profile

Mailing Address

100 S Ellsworth Ave Ste 507

San Mateo, CA 944013929

Phone: 6503427432

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.