Active NPI 1700851870 Individual Practitioner Male Practitioner

Dr. Robert H. Dunham , MD

Surgery • Napa, CA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Robert Dunham, MD is a certified Surgery practicing in Napa, CA. With approximately 36 years of clinical experience since graduating from Loma Linda University School Of Medicine in 1990, Dr. Dunham delivers high-quality medical care to the local community at 3434 VILLA LN.

Dr. Dunham is affiliated with Providence Medical Foundation and accepts Medicare assignment.

Frequently performed procedures and clinical services include new patient outpatient office visit, established patient outpatient office visit, biopsy of large bowel using an endoscope. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

3434 Villa Ln
Suite 260

Napa, CA 945586405

Telephone 7072247757

Fax 7072245870

Associated Practice Facility / Clinic

🏢 Spectrumcare Rehabilitation Medical Center Facility NPI 1477578201

Medicare Profile & Education

Medical School

Loma Linda University School Of Medicine

Graduation Year

1990

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Surgery in Napa, CA

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

36 Yrs -0.3 yrs vs City Avg

City Avg: 36.3 Yrs

State Avg: 27.4 Yrs

Regional Practice Density

8 Specialists

Practicing in Napa, CA (3346 Statewide)

Telehealth Adoption Rate

0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

68.6% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Dunham (36 Years) 36 Yrs

Napa Specialty Average (36.3 Years) 36.3 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
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	83	83	$563.00	$183.72
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	51	43	$437.00	$145.57
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	24	23	$611.00	$203.63
45380 Biopsy of large bowel using an endoscope	20	19	$640.00	$173.89
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	19	13	$252.00	$83.96
99213 Established patient office or other outpatient visit, typically 15 minutes	18	18	$311.00	$103.62
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	16	15	$445.00	$108.17
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	16	16	$417.00	$138.66
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	14	14	$379.00	$126.10
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	11	11	$197.00	$65.51
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	11	11	$589.00	$185.45

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	78	78	$447.00	$182.69
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	52	42	$345.00	$142.79
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	23	22	$485.00	$199.43
45380 Biopsy of large bowel using an endoscope	22	22	$1260.00	$211.84
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	21	19	$1113.00	$99.53
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	20	13	$185.00	$84.35
99213 Established patient office or other outpatient visit, typically 15 minutes	19	18	$245.00	$101.26
49650 Repair of groin hernia using an endoscope	17	17	$1209.35	$466.59
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	16	16	$514.00	$184.89
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	11	11	$970.00	$194.21

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	73	73	$447.00	$185.54
99213 Established patient office or other outpatient visit, typically 15 minutes	36	30	$245.00	$102.31
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	35	32	$345.00	$144.06
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	24	16	$185.00	$76.11
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	17	17	$350.00	$144.16
45380 Biopsy of large bowel using an endoscope	15	15	$1260.00	$203.00
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	13	13	$485.00	$202.57
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	13	13	$514.00	$211.33

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	63	63	$296.00	$187.78
99213 Established patient office or other outpatient visit, typically 15 minutes	49	36	$132.00	$103.59
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	47	42	$195.00	$146.43
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	32	32	$197.00	$126.77
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	29	28	$148.00	$5.76
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	22	13	$126.00	$77.62
45380 Biopsy of large bowel using an endoscope	21	21	$790.00	$190.53
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	20	18	$87.00	$64.64
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	12	12	$337.00	$216.33
36561 Insertion of central venous catheter and implanted device for infusion beneath the skin, patient 5 years or older	12	12	$3528.00	$361.60
49650 Repair of groin hernia using an endoscope	12	12	$1340.08	$453.58
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	12	12	$258.00	$146.57
77001 Fluoroscopic guidance for insertion, replacement or removal of central venous access device	12	12	$217.00	$19.90
76937 Ultrasonic guidance for blood vessel access	12	12	$34.00	$14.87
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	11	11	$927.00	$179.84
76998 Ultrasonic guidance during surgery	11	11	$440.00	$65.24

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	94	94	$296.00	$185.66
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	62	50	$195.00	$124.49
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	51	51	$148.00	$5.98
99213 Established patient office or other outpatient visit, typically 15 minutes	43	33	$132.00	$86.22
45380 Biopsy of large bowel using an endoscope	30	30	$790.00	$197.89
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	25	14	$126.00	$79.96
76642 Limited ultrasound scan of 1 breast	20	14	$209.00	$105.13
49650 Repair of groin hernia using an endoscope	19	19	$1445.34	$491.27
76998 Ultrasonic guidance during surgery	17	17	$440.00	$67.00
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	14	14	$258.00	$151.78
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	13	13	$927.00	$207.53
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	12	12	$682.00	$112.16

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	150	150	$292.48	$185.30
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	83	69	$192.55	$124.32
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	56	56	$148.00	$5.91
99213 Established patient office or other outpatient visit, typically 15 minutes	48	38	$130.44	$84.02
76642 Limited ultrasound scan of 1 breast	28	23	$209.00	$105.06
45380 Biopsy of large bowel using an endoscope	27	27	$790.00	$187.19
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	21	12	$126.00	$79.55
76998 Ultrasonic guidance during surgery	19	19	$440.00	$66.66
49650 Repair of groin hernia using an endoscope	19	19	$1406.27	$433.85
49568 Placement of mesh to repair incisional or abdominal hernia	16	16	$668.00	$282.50
49561 Repair of trapped incisional or abdominal hernia	14	14	$1776.00	$1000.72
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	14	14	$665.00	$206.89
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	12	12	$682.00	$117.17
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	11	11	$337.00	$221.16
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	11	11	$1066.00	$285.50
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	11	11	$258.00	$149.22

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	143	143	$280.47	$183.62
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	62	62	$148.00	$5.85
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	53	37	$126.00	$78.54
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	46	39	$184.09	$121.80
99231 Follow-up hospital inpatient care per day, typically 15 minutes	32	19	$84.00	$42.30
99213 Established patient office or other outpatient visit, typically 15 minutes	31	26	$125.06	$82.80
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	26	26	$337.00	$217.94
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	20	20	$927.00	$199.59
45380 Biopsy of large bowel using an endoscope	20	20	$790.00	$162.37
76642 Limited ultrasound scan of 1 breast	19	18	$209.00	$105.42
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	18	18	$258.00	$146.83
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	17	17	$665.00	$198.54
49650 Repair of groin hernia using an endoscope	16	16	$1414.82	$444.21
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	13	11	$169.00	$110.78
77001 Fluoroscopic guidance for insertion, replacement or removal of central venous access device	13	13	$217.00	$20.02
36561 Insertion of central venous catheter and implanted device for infusion beneath the skin, patient 5 years or older	12	12	$3528.00	$351.92
76937 Ultrasonic guidance for blood vessel access	11	11	$87.00	$15.54

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	97	97	$258.00	$179.85
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	62	53	$168.00	$119.61
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	30	19	$126.00	$74.83
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	26	26	$148.00	$5.75
45380 Biopsy of large bowel using an endoscope	26	26	$790.00	$197.66
99231 Follow-up hospital inpatient care per day, typically 15 minutes	22	16	$84.00	$41.55
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	22	22	$325.00	$225.26
45378 Diagnostic exam of large bowel using a flexible endoscope	20	20	$716.00	$203.19
99213 Established patient office or other outpatient visit, typically 15 minutes	19	18	$115.00	$81.58
76642 Limited ultrasound scan of 1 breast	16	13	$209.00	$104.00
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	15	15	$682.00	$113.36
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	14	14	$927.00	$201.41
76705 Limited ultrasound scan of abdomen	11	11	$184.00	$109.06

Medical Specialties & State Licenses

CMS Verified: 2021-10-21

Surgery Primary Specialty

NUCC Taxonomy Code: 208600000X

State License CA G74484

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

Providence Medical Foundation

1000 Trancas St, Napa, CA 945582906

Phone: 7072537161

Providence Medical Foundation

200 W Ctr St Promenade, Anaheim, CA 928053960

Providence Medical Foundation

3434 Villa Ln, Napa, CA 945586415

Phone: 7072247757

Providence Medical Foundation

500 Doyle Park Dr, Santa Rosa, CA 954054559

Providence Medical Foundation

1000 Trancas St, Napa, CA 945582906

Phone: 7072524411

Providence Medical Foundation

1100 Trancas St, Napa, CA 945582909

Providence Medical Foundation

1165 Montgomery Dr, Santa Rosa, CA 954054801

Phone: 7075463210

Practice Associates & Co-Workers

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

1 Associated Practitioners

Dr. Robert White , MD

Surgery

NPI 1245435791

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 September 11, 2012

NPI status registered as active in NPPES database

📍

Updated Practice Location September 11, 2012

Registered at 3434 VILLA LN, SUITE 260, NAPA, CA 945586405 (Tel: 7072247757)

📍

Updated Business Mailing Address September 11, 2012

Registered at 3434 VILLA LN, SUITE 260, NAPA, CA 945586405 (Tel: 7072247757)

👤

Provider Name / Credentials Updated September 11, 2012

Recorded as ROBERT DUNHAM, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) September 11, 2012

Surgery (License #G74484 in CA)

🟢

Initial NPI Registration & Enumeration February 21, 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: 1700851870

Entity Type:

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

Enumeration Date: February 21, 2006

Last Update: October 21, 2021

Sole Proprietor: No

Update or Correct Profile

Mailing Address

3434 Villa Ln, Suite 260

Napa, CA 945586405

Phone: 7072247757

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.