Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. MAZEN HASHISHO M.D.
NPI 1255524427
Surgery - Vascular Surgery in Aptos, CA

Q: What is Mazen Hashisho's NPI number?

The NPI number for Mazen Hashisho is 1255524427. It was assigned to this individual provider in the NPPES registry on August 21, 2007.

Q: What is Mazen Hashisho's specialty?

The primary specialty registered for this NPI is Surgery, specializing in Vascular Surgery, with taxonomy code 2086S0129X.

Q: When was this NPI record last updated?

The NPPES record for Mazen Hashisho was last updated on September 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since August 21, 2007PECOS Enrolled

85.88/100

CMS Quality Rating

3275 APTOS RANCHO RD STE 1A, APTOS, CA 95003(831) 318-0010(831) 318-0407 Get Directions Write a Review

NPPES record last updated: September 29, 2026. Verified against the NPPES registry weekly; last sync: October 04, 2026.

Record update history: Sep 29, 2026, Jun 16, 2020, Jan 17, 2020 and 3 more (6 updates tracked since 2016).

On this page

About Dr. Mazen Hashisho M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MAZEN HASHISHO M.D. (NPI 1255524427) is an individual vascular surgery provider in Aptos, California, licensed in California (A94329) and active in the NPI registry since August 2007. He is enrolled in Medicare PECOS, maintains 3 additional practice locations, and is a graduate of Other (1998).

NPPES Registry Identity

NPI1255524427

Entity TypeIndividualMale

Primary Taxonomy2086S0129X

Provider Legal NameDR. MAZEN HASHISHOCredential: M.D.

Location Address3275 APTOS RANCHO RD STE 1AAptos, CA 95003-3971

Mailing Address3275 Aptos Rancho Rd Ste 1aAptos, CA 95003-3971 · (631) 662-2130 · Fax (831) 318-0407

Phone(831) 318-0010

Fax(831) 318-0407

Sole ProprietorNo

Medical School CMSOtherGraduated 1998

Enumeration DateAugust 21, 2007

Last NPPES UpdateSeptember 29, 20266 updates tracked since enumeration

NPPES CertifiedSeptember 29, 2026

✔ NPI 1255524427 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySurgery · Vascular SurgeryAllopathic & Osteopathic Physicians

Taxonomy Code2086S0129X

Licenses✔ Licensed in CA · A94329✔ Licensed in PA · MD441265✔ Licensed in NY · 002845

Definition

A surgeon with expertise in the management of surgical disorders of the blood vessels, excluding the intracranial vessels or the heart.

Also ListedThoracic Surgery (Cardiothoracic Vascular Surgery)Taxonomy 208G00000X · License A94329 (CA)

3275 APTOS RANCHO RD STE 1A, Aptos, CA 95003

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Secondary Practice Locations 3

Location 1798 Cass St Ste 201Monterey, CA 93940-2918 · Phone (831) 318-0010 · Fax (831) 318-0407

Location 2221 E Romie LnSalinas, CA 93901-3127 · Phone (831) 318-0010 · Fax (831) 318-0407

Location 3242 E Romie LnSalinas, CA 93901-3128 · Phone (831) 318-0010 · Fax (831) 318-0407

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Mazen Hashisho M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3173671906

PECOS Enrollment IDI20130522000721

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 34

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

638 services273 patients

Use of a drug to induce depression of consciousness by physician performing a procedure, each additional 15 minutes 99153

This service involves a physician administering medication to lower your consciousness during a procedure. It's done for your comfort and safety. The drug's effects last about 15 minutes, so additional doses may be given as needed.

480 services89 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

167 services167 patients

Ultrasonic guidance for blood vessel access 76937

Ultrasonic guidance for blood vessel access is a medical procedure where sound waves are used to create images of your blood vessels. This helps doctors to accurately locate and access the vessels for treatments or tests, ensuring safety and precision.

162 services92 patients

Ultrasound study of arm or leg veins with compression and maneuvers 93970

An ultrasound study of arm or leg veins with compression and maneuvers is a non-invasive procedure that uses sound waves to create images of your veins. This helps identify blood clots or other vein problems. During the procedure, pressure is applied to the veins and certain movements are performed to assess blood flow.

156 services141 patients

Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes 99152

This procedure involves a doctor administering a medication to reduce your consciousness during a procedure. This helps in managing discomfort and anxiety. The initial application lasts for 15 minutes and is for individuals aged 5 years or older.

144 services96 patients

Injection, midazolam hydrochloride, per 1 mg J2250

Midazolam hydrochloride is a medication injected to help you relax or sleep before surgery or certain medical procedures. It works by calming the brain and nerves. It's given in small doses, measured in milligrams (mg).

125 services76 patients

Ultrasound study of one arm or leg veins with compression and maneuvers 93971

This is a non-invasive procedure using sound waves to visualize veins in an arm or leg. It involves applying gentle pressure and performing certain movements. It helps identify any abnormal blood flow or clots, ensuring vascular health.

113 services68 patients

Ultrasound of leg arteries or artery grafts 93925

An ultrasound of leg arteries or artery grafts is a non-invasive imaging test. It uses high-frequency sound waves to capture live images from inside your body, specifically your leg arteries or grafts. This helps in detecting any blockages or abnormalities.

103 services94 patients

Ultrasound of one leg arteries or artery grafts 93926

An ultrasound of leg arteries or artery grafts is a non-invasive test using sound waves to create images of your blood vessels. This helps doctors assess blood flow, identify blockages, and monitor the health of grafts.

83 services54 patients

Ultrasound evaluation of blood vessel with review by radiologist, each additional vessel 37253

An ultrasound evaluation of a blood vessel is a non-invasive procedure that uses sound waves to create images of your blood vessels. A radiologist reviews these images to check for any abnormalities. If additional vessels need reviewing, the process is repeated.

73 services27 patients

Injection, fentanyl citrate, 0.1 mg J3010

Fentanyl citrate is a potent pain medication administered via injection. The 0.1 mg dosage is used to manage severe pain conditions. It works by blocking pain signals to the brain. It's crucial to follow the dosage instructions to prevent potential side effects.

73 services54 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

70 services54 patients

Chemical destruction of first incompetent vein of arm or leg using imaging guidance 36482

This procedure involves using a chemical to close off a malfunctioning vein in your arm or leg. Imaging guidance is used to accurately locate the vein. This helps improve blood flow by rerouting it through healthier veins.

70 services48 patients

Review by radiologist of arm or leg artery image 75710

This procedure involves a radiologist examining images of your arm or leg arteries. These images are obtained through a non-invasive method, like an ultrasound or CT scan. The radiologist reviews these images to identify any abnormalities, such as blockages or narrowing, which can affect blood flow.

53 services37 patients

Removal of plaque in artery of leg, initial vessel 37229

This procedure involves removing plaque from the initial vessel in your leg. Plaque, a build-up of fat, cholesterol, and other substances, can block blood flow. The removal process, known as an angioplasty, restores healthy blood circulation in your leg.

52 services41 patients

Destruction of first incompetent vein of arm or leg using radiofrequency and imaging guidance 36475

This procedure involves using radiofrequency energy, a type of heat energy, to close off an unhealthy vein in your arm or leg. Imaging guidance helps ensure precise targeting of the vein. This helps improve blood flow by rerouting it through healthier veins.

51 services35 patients

Insertion of needle and/or tube into hemodialysis circuit and balloon dilation of dialysis segment with review by radiologist 36902

This procedure involves inserting a needle or tube into your hemodialysis circuit, a system that cleans your blood when your kidneys can't. A balloon is then used to widen a narrow section of this circuit. A radiologist reviews the procedure to ensure accuracy.

50 services34 patients

Injection of chemical agent into multiple incompetent veins of leg 36471

This procedure involves injecting a special chemical into problematic veins in the leg. The chemical helps to close off these veins, rerouting blood through healthier veins. This can alleviate discomfort and improve the appearance of the treated area.

48 services27 patients

Ultrasound evaluation of blood vessel with review by radiologist, initial vessel 37252

This procedure involves using ultrasound, a safe imaging technique, to examine your blood vessels. The images are then reviewed by a radiologist, a doctor specialized in medical imaging. The process helps identify any abnormalities in your initial vessel.

44 services34 patients

Removal of plaque in arteries of leg 37225

This procedure, known as atherectomy, involves clearing out plaque buildup in the leg arteries. Plaque can restrict blood flow, causing discomfort and potential health issues. A special device is inserted into the artery to carefully remove the plaque, improving blood circulation.

34 services29 patients

Permanent blockage of hemodialysis circuit with review by radiologist 36909

This is a procedure where a radiologist reviews the permanent blockage of your hemodialysis circuit. Hemodialysis is a treatment that uses a machine to clean your blood when your kidneys can't. A blockage can prevent this process, which may need review or intervention.

29 services24 patients

Blood test, comprehensive group of blood chemicals 80053

A comprehensive group of blood chemicals test, also known as a comprehensive metabolic panel, is a blood test that measures your sugar level, electrolyte and fluid balance, kidney function, and liver function. This helps to check your body's overall health.

28 services22 patients

Review by radiologist of abdominal aorta and both leg arteries image 75630

This procedure involves a radiologist examining images of your abdominal aorta and leg arteries. These images help identify any abnormalities or blockages in the arteries, ensuring proper blood flow for optimal health.

26 services25 patients

Ultrasound of hemodialysis access 93990

An ultrasound of hemodialysis access is a non-invasive procedure that uses sound waves to create images of your dialysis access site. It helps monitor the access site's health and detect any potential issues like blockages or narrowing.

26 services23 patients

Injection of chemical agent into single incompetent vein 36470

This procedure involves injecting a chemical agent into a vein that isn't functioning properly. The chemical causes the vein to collapse and reroute blood to healthier veins. It's a common treatment for conditions like varicose veins.

25 services18 patients

Blood count, hemoglobin 85018

A blood count, specifically hemoglobin, is a standard test that measures the amount of hemoglobin in your blood. Hemoglobin is a protein in red blood cells that carries oxygen throughout your body. This test helps assess your overall health and detect a variety of disorders such as anemia or polycythemia.

25 services19 patients

Destruction of subsequent incompetent veins of arm or leg using radiofrequency and imaging guidance 36476

This procedure involves using radiofrequency, a type of energy wave, to close off veins in your arm or leg that aren't working properly. Imaging guidance helps ensure accuracy. The goal is to redirect blood flow to healthier veins, improving circulation.

20 services14 patients

Removal of plaque and insertion of stents in arteries of leg 37227

This procedure, known as angioplasty, involves a small tube being inserted into your leg artery. The tube has a tiny balloon that inflates to remove plaque blocking the artery. A stent (a small mesh tube) is then placed to keep the artery open, improving blood flow.

19 services16 patients

Removal of tunneled central venous tube 36589

A tunneled central venous tube removal is a procedure to take out a long, thin tube that was previously placed in a large vein in your body. This tube helps deliver medication or nutrition. The removal is usually quick and done under local anesthesia.

18 services17 patients

Review by radiologist of additional artery image 75774

This procedure involves a radiologist examining an extra image of your artery. It's done to gain more insight into your vascular health. The radiologist will study the image to identify any abnormalities or issues that may need further medical attention.

18 services17 patients

Complete ultrasound study of arm and leg arteries 93923

This procedure involves using sound waves to produce images of your arm and leg arteries. It helps identify blockages or abnormalities that could lead to conditions like stroke or peripheral artery disease. It's non-invasive and painless.

17 services16 patients

Insertion of tube into chest or arm artery, each first order branch 36215

This procedure involves placing a thin tube into a chest or arm artery. It is done to monitor blood pressure, take blood samples, or deliver medications. The tube may also be inserted into each first order branch, which are the initial divisions of the main artery.

14 services14 patients

Complete ultrasound of aorta, vena cava, groin vessels or bypass grafts 93978

This procedure involves using sound waves to create images of your aorta, vena cava, groin vessels, or bypass grafts. It helps to detect abnormalities or blockages, ensuring your blood flows smoothly. It's painless and non-invasive.

14 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95003 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$96.03 typical visit price

range $62.97 – $186.69

Typical copayment $24.00 (range $15.74 – $46.67)

Most-billed visit code 99203

Established Patient

$77.84 typical visit price

range $21.02 – $153.16

Typical copayment $19.46 (range $5.25 – $38.29)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

85.88/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

73.39

Promoting Interoperability

Improvement Activities

Cost

56.29

Reported Quality Measures

Prevention of Central Venous Catheter (CVC) - Related Bloodstream Infections

Percentage of patients, regardless of age, who undergo central venous catheter (CVC) insertion for whom CVC was inserted with all elements of maximal sterile barrier technique, hand hygiene, skin preparation and, if ultrasound is used, sterile ultrasound…

100%39 patients

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

CEDAR SURGERY CENTER

Clinic/Center (Ambulatory Surgical)

3275 APTOS RANCHO RD STE 1A
APTOS, CA 95003

Santa Cruz County (831) 318-0010

MONTEREY BAY VASCULAR, INC.

Surgery (Vascular Surgery)

3275 APTOS RANCHO RD STE 1A
APTOS, CA 95003

Santa Cruz County (631) 662-2130

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mazen Hashisho's NPI number?

The NPI number for Mazen Hashisho is 1255524427. It was assigned to this individual provider in the NPPES registry on August 21, 2007.

Where is Mazen Hashisho located?

Mazen Hashisho practices at 3275 Aptos Rancho Rd Ste 1A, Aptos, CA 95003. The listed phone number is (831) 318-0010.

What is Mazen Hashisho's specialty?

The primary specialty registered for this NPI is Surgery, specializing in Vascular Surgery, with taxonomy code 2086S0129X.

Is Mazen Hashisho enrolled in Medicare?

Yes. Mazen Hashisho is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Mazen Hashisho was last updated on September 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.