Doctor profile · Federal record

Dr. Mazen Hashisho, M.D.

Vascular Surgery Physician (CMS: Vascular Surgery) · Vascular Surgery Physician · Vascular Surgery Physician · Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Garden Grove, CA

  • NPI 1255524427
  • Accepts Medicare
  • MIPS 78.7 / 100 · 2023
  • 28 yrs in practice
  • Licensed in 3 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 4 locations .

NPPES Updated May 11, 2026
Primary practice
12555 Garden Grove Blvd Ste 403
Garden Grove, CA 928431903
(562) 506-0176
fax (562) 506-0053
Additional location
101 E Beverly Blvd Ste 303
Montebello, CA 906404316
Additional location
2888 Long Beach Blvd Ste 235
Long Beach, CA 908061562
(562) 424-4447
fax (562) 216-1785
Show 1 more location
Additional location
333 Cottman Ave
Philadelphia, PA 191112434
(215) 214-1427
fax (215) 214-3901
Mailing address
5150 E Pacific Coast Hwy Ste 500
Long Beach, CA 908043328

Credentials & registration

NPPES · NUCC
NPI registered
August 2007 — 19 yrs on file
Profile last updated
June 16, 2020
Year of graduation
1998 — 28 yrs since
Specialty taxonomy
2086S0129X — NUCC code
State licenses (3)
California #A94329 · Pennsylvania #MD441265 · New York #002845

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1255524427. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
2,535
Distinct HCPCS
10
Medicare allowed
$1,240,299
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 584 242 $138
99153 Use of a drug to induce depression of consciousness by physician performing a procedure, each additional 15 minutes 353 74 $13
99204 New patient office or other outpatient visit, 45-59 minutes 204 204 $180
93970 Ultrasound study of arm or leg veins with compression and maneuvers 140 130 $212
76937 Ultrasonic guidance for blood vessel access 120 77 $45
99152 Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes 119 82 $59
93925 Ultrasound of leg arteries or artery grafts 84 75 $275
93971 Ultrasound study of one arm or leg veins with compression and maneuvers 80 46 $133
J2250 Injection, midazolam hydrochloride, per 1 mg 75 54 $0
93926 Ultrasound of one leg arteries or artery grafts 73 38 $147

In context: peer comparison

Among 1 peers in Garden Grove Vascular Surgery Physician, average services per provider: 74. This provider delivers 34× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$31,460
Transactions
34
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
AngioDynamics, INC. 2 $30,222.22
Bard Peripheral Vascular, INC. 7 $279.45
Boston Scientific Corporation 5 $267.60
Medtronic, INC. 4 $149.80
Janssen Biotech, INC. 1 $125.00
Becton, Dickinson and Company 3 $108.16
LeMaitre Vascular, INC. 3 $55.03
Tactile Systems Technology INC 2 $51.43
Organogenesis INC. 1 $34.47
Nevro Corp. 1 $31.78
Mimedx Group, INC. 1 $25.72
Urgo Medical North America, LLC 1 $25.18
Smith+Nephew, INC. 1 $25.00
Merck Sharp & Dohme LLC 1 $23.17
Abbott Laboratories 1 $18.33

By nature of payment

Long Term Medical Supply or Device Loan
$30,000
Food and Beverage
$1,460

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
75
Patients
42
Total drug cost
$1,490
Drug Type Claims Patients Total cost
Clopidogrel (Clopidogrel Bisulfate) Brand 32 25 $883
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 28 17 $531
Clonazepam Generic 15 0 $76

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Mazen Hashisho's medical specialty?
Dr. Mazen Hashisho practices Vascular Surgery Physician in Garden Grove, CA.
Where does Dr. Mazen Hashisho practice?
Dr. Mazen Hashisho practices at 12555 Garden Grove Blvd Ste 403, Garden Grove, CA 928431903. Office phone: 5625060176.
What is Dr. Mazen Hashisho's NPI?
Dr. Mazen Hashisho's National Provider Identifier (NPI) is 1255524427, issued by NPPES.
Does Dr. Mazen Hashisho accept Medicare assignment?
Yes. Dr. Mazen Hashisho accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mazen Hashisho commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Use of a drug to induce depression of consciousness by physician performing a procedure (HCPCS 99153); New patient office or other outpatient visit (HCPCS 99204). Source: CMS Medicare Physician & Other Practitioners file.