Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

DR. MEHRDAD MICHAEL MAHDAD M.D.
NPI 1225092190
Psychiatry & Neurology - Neurology in Fountain Valley, CA

Q: What is Mehrdad Mahdad's NPI number?

The NPI number for Mehrdad Mahdad is 1225092190. It was assigned to this individual provider in the NPPES registry on April 17, 2006. The provider is also known as Dr. Michael M Mahdad M.D..

Q: What is Mehrdad Mahdad's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.

Q: When was this NPI record last updated?

The NPPES record for Mehrdad Mahdad was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 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 April 17, 2006PECOS Enrolled

0/100

CMS Quality Rating

11180 WARNER AVE, #261, FOUNTAIN VALLEY, CA 92708(714) 546-5505(714) 546-0425 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

On this page

About Dr. Mehrdad Michael Mahdad M.d. NPPES

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

DR. MEHRDAD MICHAEL MAHDAD M.D. (NPI 1225092190) is an individual neurology provider in Fountain Valley, California, licensed in California (A42941) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1980).

NPPES Registry Identity

NPI1225092190

Entity TypeIndividualMale

Primary Taxonomy2084N0400X

Provider Legal NameDR. MEHRDAD MICHAEL MAHDADCredential: M.D.

Location Address11180 WARNER AVE, #261Fountain Valley, CA 92708-7501

Mailing Address11180 Warner Ave, #261Fountain Valley, CA 92708-7501 · (714) 546-5505 · Fax (714) 546-0425

Phone(714) 546-5505

Fax(714) 546-0425

Sole ProprietorNo

Medical School CMSOtherGraduated 1980

Enumeration DateApril 17, 2006

Last NPPES UpdateJuly 13, 2026

✔ NPI 1225092190 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · NeurologyAllopathic & Osteopathic Physicians

Taxonomy Code2084N0400X

License✔ Licensed in CA · A42941

Definition

A Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures.

11180 WARNER AVE, Fountain Valley, CA 92708

Open in Google Maps ↗

Other Names 1

Professional Name (2)Dr. Michael M Mahdad M.d.

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. Mehrdad Michael Mahdad 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 ID840371514

PECOS Enrollment IDI20080118000614

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 13

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.

268 services194 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.

189 services189 patients

Needle measurement of electrical activity in arm or leg muscles, complete study 95886

This procedure, known as an electromyography (EMG), involves inserting a small needle into your arm or leg muscles to measure their electrical activity. This complete study helps diagnose issues with nerves or muscles, providing valuable data for your treatment plan.

87 services43 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

53 services40 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

41 services40 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

36 services27 patients

Measurement of brain wave activity (eeg), awake and drowsy 95816

Measurement of brain wave activity, also known as an EEG, is a non-invasive test that records electrical patterns in your brain. This procedure is done when you're awake and drowsy to understand how your brain functions during different states of consciousness.

31 services31 patients

Measurement of brain wave activity (eeg), awake and asleep 95819

The measurement of brain wave activity, known as an EEG, records the brain's electrical signals. It's performed when you're awake and asleep to monitor your brain's functioning. It helps in diagnosing conditions like epilepsy, sleep disorders, and other neurological issues.

28 services27 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

21 services21 patients

Nerve conduction, 7-8 studies 95910

Nerve conduction studies involve testing the speed and strength of signals traveling through your nerves. This helps doctors identify nerve damage. In a 7-8 study procedure, 7-8 specific nerves are tested. You may feel a mild, brief tingling or shock during the test.

19 services19 patients

Nerve conduction, 9-10 studies 95911

Nerve conduction studies involve sending small electrical shocks through the skin to measure how quickly nerves transmit signals. This helps detect nerve damage. 9-10 studies mean this process will be repeated on different nerves to gather comprehensive data.

16 services15 patients

Measurement of brain wave activity (eeg), digital analysis 95957

The measurement of brain wave activity, or EEG, involves recording and analyzing electrical signals from your brain. Small sensors are placed on the scalp to capture these signals. This digital analysis helps in diagnosing conditions like epilepsy or sleep disorders.

16 services16 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

14 services14 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92708 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

$142.39 typical visit price

range $62.96 – $187.60

Typical copayment $35.59 (range $15.74 – $46.90)

Most-billed visit code 99204

Established Patient

$109.96 typical visit price

range $20.84 – $153.61

Typical copayment $27.49 (range $5.21 – $38.40)

Most-billed visit code 99214

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.

0/100

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

Individually scored

Quality

Improvement Activities

Leave this field empty

Other Providers at the Same Location NPPES 20

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

PERINATAL DX MEDICAL GRP OR ORANGE COUNTY

Obstetrics & Gynecology (Hospice and Palliative Medicine)

11180 WARNER AVE, #263
FOUNTAIN VALLEY, CA 92708

Orange County (714) 241-9742

DR. DAVID COHEN DDS

Dentist

11180 WARNER AVE, #451
FOUNTAIN VALLEY, CA 92708

Orange County (714) 444-4428

JIN JOU LU MD

Surgery

11180 WARNER AVE, SUITE 461
FOUNTAIN VALLEY, CA 92708

Orange County (714) 545-5501

DR. MICHAEL JORDAN VIZCARRA M.D.

Obstetrics & Gynecology

11180 WARNER AVE, SUITE 455
FOUNTAIN VALLEY, CA 92708

Orange County (714) 556-0536

CYNTHIA A. CORK, M.D., INC.

Obstetrics & Gynecology

11180 WARNER AVE, SUITE 455
FOUNTAIN VALLEY, CA 92708

Orange County (714) 556-0536

REGENERATIVE OPTIMUM HEALTH INC

Internal Medicine

11180 WARNER AVE, SUITE 257
FOUNTAIN VALLEY, CA 92708

Orange County (714) 885-8980

MR. SATINDER SWAROOP MD

Internal Medicine (Cardiovascular Disease)

11180 WARNER AVE, SUITE #353
FOUNTAIN VALLEY, CA 92708

Orange County (714) 751-3540

MS. JANET YOUN CHOI P.A.-C

Physician Assistant

11180 WARNER AVE, SUITE 165
FOUNTAIN VALLEY, CA 92708

Orange County (714) 429-5922

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 Mehrdad Mahdad's NPI number?

The NPI number for Mehrdad Mahdad is 1225092190. It was assigned to this individual provider in the NPPES registry on April 17, 2006. The provider is also known as Dr. Michael M Mahdad M.D..

Where is Mehrdad Mahdad located?

Mehrdad Mahdad practices at 11180 Warner Ave #261, Fountain Valley, CA 92708. The listed phone number is (714) 546-5505.

What is Mehrdad Mahdad's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.

Is Mehrdad Mahdad enrolled in Medicare?

Yes. Mehrdad Mahdad 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 Mehrdad Mahdad was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 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.