Active NPI 1013013218 Individual Practitioner Male Practitioner

Hamid R. Rassai

Surgery • Antioch, CA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Hamid Rassai is a certified Surgery practicing in Antioch, CA. With approximately 31 years of clinical experience since graduating from Medical College Of Pennsylvania in 1995, Hamid Rassai delivers high-quality medical care to the local community at 2350 COUNTRY HILLS DR STE A.

Hamid Rassai is affiliated with Bass Medical Group and accepts Medicare assignment.

Frequently performed procedures and clinical services include established patient outpatient office visit, removal of skin and tissue, 20.0 sq cm or less, ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

2350 Country Hills Dr Ste A

Antioch, CA 945097436

Telephone 9257570800

Fax 9257572160

Associated Practice Facility / Clinic

🏢 East Bay Surgical Associates, A Medical Corporation Facility NPI 1689858748

Medicare Profile & Education

Medical School

Medical College Of Pennsylvania

Graduation Year

1995

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Surgery in Antioch, CA

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

31 Yrs +3.7 yrs vs City Avg

City Avg: 27.3 Yrs

State Avg: 27.4 Yrs

Regional Practice Density

8 Specialists

Practicing in Antioch, CA (3346 Statewide)

Telehealth Adoption Rate

12.5% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

73.3% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Rassai (31 Years) 31 Yrs

Antioch Specialty Average (27.3 Years) 27.3 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
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	202	38	$460.00	$115.39
11042 Removal of skin and tissue, 20.0 sq cm or less	181	47	$414.00	$73.05
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers	149	71	$475.00	$169.30
36482 Chemical destruction of incompetent vein of arm or leg, accessed through the skin using imaging guidance	129	54	$8432.00	$2369.50
93970 Ultrasound study of arm or leg veins with compression and maneuvers	125	108	$776.00	$217.98
93925 Ultrasound of leg arteries or artery grafts	104	102	$1034.00	$341.77
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	98	79	$460.00	$163.06
93922 Ultrasound study of arm and leg arteries	93	90	$444.00	$97.14
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	92	92	$585.00	$209.39
99183 Management and supervision of oxygen chamber therapy per session	79	11	$690.00	$122.00
99213 Established patient office or other outpatient visit, typically 15 minutes	60	56	$325.00	$116.41
36475 Destruction of insufficient vein of arm or leg, accessed through the skin	26	14	$6350.00	$1468.65
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	19	19	$585.00	$157.19

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	286	42	$460.00	$110.96
11042 Removal of skin and tissue, 20.0 sq cm or less	263	40	$414.00	$68.82
93970 Ultrasound study of arm or leg veins with compression and maneuvers	117	108	$770.35	$205.89
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers	116	57	$471.54	$159.52
93925 Ultrasound of leg arteries or artery grafts	103	102	$1025.22	$322.13
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	100	76	$460.00	$153.41
36482 Chemical destruction of incompetent vein of arm or leg, accessed through the skin using imaging guidance	99	48	$8432.00	$2294.55
93922 Ultrasound study of arm and leg arteries	97	96	$439.85	$89.10
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	82	82	$585.00	$196.89
99213 Established patient office or other outpatient visit, typically 15 minutes	46	42	$325.00	$109.02
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	16	16	$585.00	$150.87

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers	161	68	$475.00	$158.92
36482 Chemical destruction of incompetent vein of arm or leg, accessed through the skin using imaging guidance	141	58	$8432.00	$2323.53
93970 Ultrasound study of arm or leg veins with compression and maneuvers	134	114	$776.00	$208.70
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	123	21	$460.00	$110.84
93925 Ultrasound of leg arteries or artery grafts	107	106	$1034.00	$324.22
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	105	77	$460.00	$149.24
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	100	100	$585.00	$193.46
93922 Ultrasound study of arm and leg arteries	92	90	$444.00	$91.43
11042 Removal of skin and tissue, 20.0 sq cm or less	83	22	$414.00	$68.23
99213 Established patient office or other outpatient visit, typically 15 minutes	60	53	$325.00	$105.19
36475 Destruction of insufficient vein of arm or leg, accessed through the skin	26	14	$6350.00	$1343.97

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	232	41	$446.34	$112.37
11042 Removal of skin and tissue, 20.0 sq cm or less	205	40	$414.00	$69.53
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers	161	69	$475.00	$163.66
36482 Chemical destruction of incompetent vein of arm or leg, accessed through the skin using imaging guidance	142	55	$8432.00	$2555.21
93970 Ultrasound study of arm or leg veins with compression and maneuvers	117	101	$770.35	$214.05
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	106	74	$451.70	$153.49
93925 Ultrasound of leg arteries or artery grafts	97	95	$1024.68	$336.27
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	83	83	$580.45	$196.52
93922 Ultrasound study of arm and leg arteries	83	82	$439.14	$88.57
99213 Established patient office or other outpatient visit, typically 15 minutes	51	49	$314.98	$107.72
36475 Destruction of insufficient vein of arm or leg, accessed through the skin	27	15	$6350.00	$1689.44
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	16	16	$583.31	$154.55

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	208	31	$372.00	$86.31
11042 Removal of skin and tissue, 20.0 sq cm or less	152	27	$414.00	$70.83
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers	132	62	$471.96	$158.94
93970 Ultrasound study of arm or leg veins with compression and maneuvers	128	105	$776.00	$212.63
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	123	89	$372.00	$124.92
93925 Ultrasound of leg arteries or artery grafts	101	98	$1034.00	$332.87
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	91	91	$558.00	$192.50
36475 Destruction of insufficient vein of arm or leg, accessed through the skin	83	39	$6350.00	$1726.36
36482 Chemical destruction of incompetent vein of arm or leg, accessed through the skin using imaging guidance	78	35	$8432.00	$2553.68
99213 Established patient office or other outpatient visit, typically 15 minutes	68	63	$252.00	$88.91
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	30	20	$237.00	$82.61
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	13	13	$497.00	$173.98

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	237	37	$372.00	$88.73
11042 Removal of skin and tissue, 20.0 sq cm or less	190	40	$414.00	$70.45
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers	159	78	$475.00	$156.14
93970 Ultrasound study of arm or leg veins with compression and maneuvers	150	134	$776.00	$208.42
36475 Destruction of insufficient vein of arm or leg, accessed through the skin	147	72	$6350.00	$1813.27
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	126	91	$372.00	$124.60
93925 Ultrasound of leg arteries or artery grafts	123	122	$1034.00	$331.43
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	115	115	$558.00	$186.08
99213 Established patient office or other outpatient visit, typically 15 minutes	80	73	$252.00	$85.25
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	45	31	$237.00	$81.63
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	30	28	$497.00	$166.24
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	18	18	$450.00	$153.12
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	14	14	$558.00	$144.24

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	197	41	$372.00	$87.72
36475 Destruction of insufficient vein of arm or leg, accessed through the skin	195	84	$6350.00	$1893.68
11042 Removal of skin and tissue, 20.0 sq cm or less	183	40	$414.00	$70.20
93970 Ultrasound study of arm or leg veins with compression and maneuvers	154	131	$807.79	$212.69
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers	148	75	$504.88	$153.13
93925 Ultrasound of leg arteries or artery grafts	119	118	$1057.82	$338.41
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	118	118	$558.00	$188.62
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	116	86	$372.00	$121.01
99213 Established patient office or other outpatient visit, typically 15 minutes	76	71	$252.00	$84.25
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	51	34	$221.35	$78.19
15271 Application of skin substitute graft to wound of trunk, arms, or legs, 25.0 sq cm or less of wound 100.0 sq cm or less	30	11	$494.00	$94.10
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	24	24	$497.00	$162.14
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	16	16	$654.25	$225.00
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	14	14	$558.00	$143.46

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	154	36	$372.00	$86.19
11042 Removal of skin and tissue, 20.0 sq cm or less	133	34	$414.00	$67.24
93970 Ultrasound study of arm or leg veins with compression and maneuvers	132	113	$920.00	$204.23
36475 Destruction of insufficient vein of arm or leg, accessed through the skin	120	58	$6350.00	$1892.04
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	114	114	$558.00	$181.81
93925 Ultrasound of leg arteries or artery grafts	108	107	$1139.00	$323.68
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	102	83	$372.00	$123.49
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers	95	51	$609.00	$148.81
99213 Established patient office or other outpatient visit, typically 15 minutes	69	59	$252.00	$84.34
15271 Application of skin substitute graft to wound of trunk, arms, or legs, 25.0 sq cm or less of wound 100.0 sq cm or less	58	11	$494.00	$92.07
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	32	21	$199.59	$74.26
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	30	30	$497.00	$160.03
99291 Critical care, first 30-74 minutes	30	15	$762.80	$222.04
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	14	14	$663.00	$222.23
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	12	12	$558.00	$141.64
93880 Ultrasound of both sides of head and neck blood flow	11	11	$700.00	$238.59

Medical Specialties & State Licenses

CMS Verified: 2025-06-03

Surgery Primary Specialty

NUCC Taxonomy Code: 208600000X

State License CA A060998

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

Bass Medical Group

2350 Country Hills Dr, Antioch, CA 945097436

Phone: 9257570800

Secondary Practice Locations

2222 East St Ste 300

Concord, CA 945202066

Phone: 9256827730

Practice Associates & Co-Workers

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

4 Associated Practitioners

Dr. Denise Romero , MD

Orthopaedic Surgery

NPI 1194922542

Doctor of Medicine (M.D.)

Dr. Phillip Polido , MD

Surgery

NPI 1245320001

Doctor of Medicine (M.D.)

Dr. Michael Ditmars , MD

Surgery

NPI 1265440101

Doctor of Medicine (M.D.)

Dr. Joseph Brandel , MD

Surgery

NPI 1770756884

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

8 Historical Events

📍

Updated Practice Location June 03, 2025

Registered at 2350 COUNTRY HILLS DR STE A, ANTIOCH, CA 945097436 (Tel: 9257570800)

📍

Updated Business Mailing Address June 03, 2025

Registered at 2350 COUNTRY HILLS DR STE A, ANTIOCH, CA 945097436 (Tel: 9257570800)

✅

NPI Profile Active March 12, 2010

NPI status registered as active in NPPES database

📍

Updated Practice Location March 12, 2010

Registered at 3903 LONE TREE WAY, ANTIOCH, CA 945096249 (Tel: 9257570800)

📍

Updated Business Mailing Address March 12, 2010

Registered at 365 LENNON LN STE 250, WALNUT CREEK, CA 945985915 (Tel: 9256273494)

👤

Provider Name / Credentials Updated March 12, 2010

Recorded as HAMID RASSAI

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) March 12, 2010

Surgery (License #A060998 in CA)

🟢

Initial NPI Registration & Enumeration September 15, 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: 1013013218

Entity Type:

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

Enumeration Date: September 15, 2006

Last Update: June 03, 2025

Sole Proprietor: No

Update or Correct Profile

Mailing Address

2350 Country Hills Dr Ste A

Antioch, CA 945097436

Phone: 9257570800

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.