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ALI OMAR MAAMAR-TAYEB M.D.
NPI 1184986770
Psychiatry & Neurology - Neurology in Ventura, CA

Active since June 11, 2012PECOS EnrolledAccepts Medicare Assignment
87.18/100
CMS Quality Rating
300 HILLMONT AVE, VENTURA, CA 93003(805) 652-6556 Get Directions Write a Review

NPPES record last updated: July 14, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jul 14, 2023, Mar 17, 2018, Mar 8, 2018 and 2 more (5 updates tracked since 2016).

About Ali Omar Maamar-tayeb M.d. NPPES

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

ALI OMAR MAAMAR-TAYEB M.D. (NPI 1184986770) is an individual neurology provider in Ventura, California, licensed in California (A140078) and active in the NPI registry since June 2012. He is enrolled in Medicare PECOS, maintains a secondary practice location in Iowa City, and is a graduate of University Of Iowa, Rj & L Carver College Of Medicine (2012).

NPPES Registry Identity

NPI1184986770
Entity TypeIndividualMale
Primary Taxonomy2084N0400X
Provider Legal NameALI OMAR MAAMAR-TAYEBCredential: M.D.
Location Address300 HILLMONT AVEVentura, CA 93003-1651
Mailing Address2323 Knoll Dr, Ste 219, Vchca - Physician ServicesVentura, CA 93003-7307 · (805) 677-5181 · Fax (805) 677-5304
Phone(805) 652-6556
Sole ProprietorNo
Medical School CMSUniversity Of Iowa, Rj & L Carver College Of MedicineGraduated 2012
Enumeration DateJune 11, 2012
Last NPPES UpdateJuly 14, 20235 updates tracked since enumeration
NPPES CertifiedJuly 14, 2023
✔ NPI 1184986770 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychiatry & Neurology · NeurologyAllopathic & Osteopathic Physicians
Taxonomy Code2084N0400X
License✔ Licensed in CA · A140078
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.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
300 HILLMONT AVE, Ventura, CA 93003
Open in Google Maps ↗

Secondary Practice Location 1

Location 1200 Hawkins Dr, NeurologyIowa City, IA 52242-1009 · Phone (319) 356-2572

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Ali Omar Maamar-tayeb 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 ID2860633278
PECOS Enrollment IDI20171031003391
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.

Medicare Billing Reassignment

Medicare enrollment records show Ali Maamar-tayeb reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

County Of Ventura
Same address
Federally Qualified Health Center (FQHC)
300 HILLMONT AVE STE 302
Ventura, CA 93003
  • Reassigned Medicare billing, California enrollment
  • 710 clinicians in this Medicare group
NPI 1619118569 (805) 652-6255

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 7

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.

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
65 services61 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.
43 services32 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
36 services16 patients
Needle measurement of electrical activity in arm or leg muscles, limited study 95885
This procedure, known as an electromyography (EMG), involves placing tiny needles into your arm or leg muscles to measure their electrical activity. It's a limited study, meaning only specific muscles are tested. This helps identify any muscle or nerve dysfunction.
34 services24 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.
17 services16 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.
12 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 93003 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
$140.72 typical visit price
range $62.32 – $185.36
Typical copayment $35.18 (range $15.58 – $46.34)
Most-billed visit code 99204
Established Patient
$108.74 typical visit price
range $20.68 – $151.85
Typical copayment $27.18 (range $5.17 – $37.96)
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.

87.18/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality84.09
Promoting Interoperability100
Improvement Activities40
Cost56.53

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.

LEIDEE DE LEON
Registered Nurse (Pediatrics)
300 HILLMONT AVE
VENTURA, CA 93003
Ventura County (805) 652-6000
DANIEL FREITAS
Case Manager/Care Coordinator
300 HILLMONT AVE
VENTURA, CA 93003
Ventura County (805) 652-6161
LINDSAY ANN LOFT FNP
Nurse Practitioner (Family)
300 HILLMONT AVE, BLDG 340, STE 401
VENTURA, CA 93003
Ventura County (805) 641-0141
DENNIS J WATSON
Counselor (Mental Health)
300 HILLMONT AVE
VENTURA, CA 93003
Ventura County (805) 562-5907
NATHAN BRODIE
Case Manager/Care Coordinator
300 HILLMONT AVE
VENTURA, CA 93003
Ventura County (805) 652-6161
SEEMA SETH FNP-BC
Nurse Practitioner (Family)
300 HILLMONT AVE
VENTURA, CA 93003
Ventura County (805) 652-3280
MARY E. RASMUSSEN REG.NURSE
Registered Nurse
300 HILLMONT AVE
VENTURA, CA 93003
Ventura County (805) 652-3200
KAYLEE MICHELLE JONES HANTKE
Student in an Organized Health Care Education/Training Program
300 HILLMONT AVE
VENTURA, CA 93003
Ventura County (805) 652-6000

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 Ali Maamar-tayeb's NPI number?

The NPI number for Ali Maamar-tayeb is 1184986770. It was assigned to this individual provider in the NPPES registry on June 11, 2012.

Where is Ali Maamar-tayeb located?

Ali Maamar-tayeb practices at 300 Hillmont Ave, Ventura, CA 93003. The listed phone number is (805) 652-6556.

What is Ali Maamar-tayeb's specialty?

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

Is Ali Maamar-tayeb enrolled in Medicare?

Yes. Ali Maamar-tayeb 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.

Which organization bills Medicare for Ali Maamar-tayeb's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ali Maamar-tayeb reassigns Medicare benefits to County Of Ventura (Ventura, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Ali Maamar-tayeb's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Ali Maamar-tayeb was last updated on July 14, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.