DR. XENOS LLOYD MASON M.D.
NPI 1619358801
Psychiatry & Neurology - Neurology in Los Angeles, CA

Q: What is Xenos Mason's NPI number?

The NPI number for Xenos Mason is 1619358801. It was assigned to this individual provider in the NPPES registry on June 12, 2015.

Q: What is Xenos Mason'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 Xenos Mason was last updated on December 8, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.

Active since June 12, 2015PECOS EnrolledAccepts Medicare Assignment

1520 SAN PABLO ST STE 3800, LOS ANGELES, CA 90033(323) 442-5720 Get Directions Write a Review

NPPES record last updated: December 8, 2021. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Dec 8, 2021, Jun 28, 2021, Mar 13, 2019 (3 updates tracked since 2019).

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About Dr. Xenos Lloyd Mason M.d. NPPES

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

DR. XENOS LLOYD MASON M.D. (NPI 1619358801) is an individual neurology provider in Los Angeles, California, licensed in California (A162496) and active in the NPI registry since June 2015. He is enrolled in Medicare PECOS and is a graduate of Other (2015).

NPPES Registry Identity

NPI1619358801

Entity TypeIndividualMale

Primary Taxonomy2084N0400X

Provider Legal NameDR. XENOS LLOYD MASONCredential: M.D.

Location Address1520 SAN PABLO ST STE 3800Los Angeles, CA 90033-5328

Mailing AddressPo Box 31309Los Angeles, CA 90031-0309 · (323) 442-5720

Phone(323) 442-5720

Sole ProprietorNo

Medical School CMSOtherGraduated 2015

Enumeration DateJune 12, 2015

Last NPPES UpdateDecember 8, 20213 updates tracked since enumeration

NPPES CertifiedDecember 8, 2021

✔ NPI 1619358801 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · NeurologyAllopathic & Osteopathic Physicians

Taxonomy Code2084N0400X

Licenses✔ Licensed in CA · A162496✔ Licensed in MA · 273446

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.

1520 SAN PABLO ST STE 3800, Los Angeles, CA 90033

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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. Xenos Lloyd Mason 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 ID8729393616

PECOS Enrollment IDI20210527002360

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 5

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 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.

99 services42 patients

Electronic analysis of implanted brain, spinal cord, or peripheral neurostimulator generator with brain stimulator programming, first 15 minutes with qualified health professional 95983

This procedure involves a medical professional using electronic equipment to analyze and adjust your implanted neurostimulator, which helps manage nerve activity in your brain, spinal cord, or peripheral nerves. The process typically takes 15 minutes.

54 services21 patients

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

53 services24 patients

Electronic analysis of implanted brain, spinal cord, or peripheral neurostimulator generator with brain stimulator programming, each additional 15 minutes with qualified health professional 95984

This procedure involves the evaluation of implanted neurostimulators in the brain, spinal cord, or peripheral nerves. It includes programming adjustments to optimize its function. A qualified health professional performs this every additional 15 minutes to ensure proper functioning.

30 services11 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

21 services21 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90033 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.

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.

JONATHAN SISTI MD

Neurological Surgery