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DR. ANDREW RATHNASAMY XAVIER MD
NPI 1124097225
Psychiatry & Neurology - Vascular Neurology in Mountain View, CA

Active since March 14, 2006PECOS EnrolledAccepts Medicare Assignment
97.58/100
CMS Quality Rating
2495 HOSPITAL DR STE 450, MOUNTAIN VIEW, CA 94040(408) 871-3400(650) 643-0026 Get Directions Write a Review

NPPES record last updated: April 18, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Mar 2, 2023, Sep 25, 2020, Jun 8, 2020 (3 updates tracked since 2020).

About Dr. Andrew Rathnasamy Xavier Md NPPES

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

DR. ANDREW RATHNASAMY XAVIER MD (NPI 1124097225) is an individual vascular neurology provider in Mountain View, California, licensed in California (C169966) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS, is affiliated with Ascension Providence Hospital, Southfield And Novi, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1124097225
Entity TypeIndividualMale
Primary Taxonomy2084V0102X
Provider Legal NameDR. ANDREW RATHNASAMY XAVIERCredential: MD
Location Address2495 HOSPITAL DR STE 450Mountain View, CA 94040-4171
Mailing Address973 University AveLos Gatos, CA 95032-7636 · (408) 871-3200
Phone(408) 871-3400
Fax(650) 643-0026
Sole ProprietorYes
Medical School CMSOtherGraduated 1988
Enumeration DateMarch 14, 2006
Last NPPES UpdateApril 18, 20253 updates tracked since enumeration
NPPES CertifiedApril 18, 2025
✔ NPI 1124097225 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtyPsychiatry & Neurology · Vascular NeurologyAllopathic & Osteopathic Physicians
Taxonomy Code2084V0102X
Licenses✔ Licensed in CA · C169966✔ Licensed in MI · 4301088851
Definition
Vascular Neurology is a subspecialty in the evaluation, prevention, treatment and recovery from vascular diseases of the nervous system. This subspecialty includes the diagnosis and treatment of vascular events of arterial or venous origin from a large number of causes that affect the brain or spinal cord such as ischemic stroke, intracranial hemorrhage, spinal cord ischemia and spinal cord hemorrhage.
Also ListedNeurological SurgeryTaxonomy 207T00000X · License 4301088851 (MI)
Also ListedPsychiatry & Neurology · NeurologyTaxonomy 2084N0400X · License 4301088851 (MI)
Also ListedRadiology · NeuroradiologyTaxonomy 2085N0700X · License 4301088851 (MI)
2495 HOSPITAL DR STE 450, Mountain View, CA 94040
Open in Google Maps ↗

Secondary Practice Locations 2

Location 131500 Telegraph Rd Ste 115Bingham Farms, MI 48025-4302 · Phone (248) 621-9100
Location 2601 John St Ste M-124Kalamazoo, MI 49007-5377 · Phone (269) 341-7500

Other Identifiers 1

OtherP00293074Railroad

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter from Meridian, Ambetter Health and more.Insurance ›

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. Andrew Rathnasamy Xavier Md 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 ID5597793695
PECOS Enrollment IDI20070131000088, I20240104002165
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 10

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 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.
84 services81 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.
64 services46 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
41 services28 patients
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.
36 services28 patients
Telephone medical discussion with physician, 21-30 minutes 99443
This service involves a 21-30 minute phone conversation with a physician. It's a chance for you to discuss your health concerns, symptoms or treatment plans. It's similar to an in-person consultation, but conducted over the phone for your convenience and safety.
31 services31 patients
Insertion of tube into intracranial artery for diagnosis or treatment with review by radiologist 36223
This procedure involves placing a tube into an artery in the brain. It's typically done for diagnostic purposes or treatment. A radiologist, a doctor specializing in imaging, reviews the process to ensure accuracy and safety.
23 services23 patients

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Ascension Providence Hospital, Southfield And Novi

Acute Care Hospitals · Southfield, MI
3/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number230019
Location16001 W Nine Mile RdSouthfield, MI 48075 · Oakland County
Emergency services Birthing friendly

Beaumont Hospital - Dearborn

Acute Care Hospitals · Dearborn, MI
1/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number230020
Location18101 Oakwood BlvdDearborn, MI 48124 · Wayne County
Emergency services Birthing friendly

Mclaren Flint

Acute Care Hospitals · Flint, MI
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number230141
Location401 S Ballenger HighwayFlint, MI 48532 · Genesee County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94040 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
$156.67 typical visit price
range $70.37 – $206.04
Typical copayment $39.16 (range $17.59 – $51.51)
Most-billed visit code 99204
Established Patient
$121.77 typical visit price
range $23.96 – $169.60
Typical copayment $30.44 (range $5.99 – $42.40)
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.

97.58/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality86.53
Promoting Interoperability100
Improvement Activities40

Other Providers at the Same Location NPPES 4

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

DR. PATRICIA YEH M.D.
Internal Medicine
2495 HOSPITAL DR STE 450
MOUNTAIN VIEW, CA 94040
Santa Clara County (650) 962-4370
DR. KAREN YUE-SHANG FANN D.O.
Otolaryngology
2495 HOSPITAL DR STE 450
MOUNTAIN VIEW, CA 94040
Santa Clara County (650) 988-4161
MS. WENDY CRISTINA PERDOMO PENA M.D.
Internal Medicine (Rheumatology)
2495 HOSPITAL DR STE 450
MOUNTAIN VIEW, CA 94040
Santa Clara County (408) 871-3400
MRS. ATENA ASIAII MD
Obstetrics & Gynecology
2495 HOSPITAL DR STE 450
MOUNTAIN VIEW, CA 94040
Santa Clara County (650) 694-3870

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 Andrew Xavier's NPI number?

The NPI number for Andrew Xavier is 1124097225. It was assigned to this individual provider in the NPPES registry on March 14, 2006.

Where is Andrew Xavier located?

Andrew Xavier practices at 2495 Hospital Dr Ste 450, Mountain View, CA 94040. The listed phone number is (408) 871-3400.

What is Andrew Xavier's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Vascular Neurology, with taxonomy code 2084V0102X.

Is Andrew Xavier enrolled in Medicare?

Yes. Andrew Xavier 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.

What insurance does Andrew Xavier accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company and 3 other insurers list Andrew Xavier as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Andrew Xavier affiliated with any hospitals?

According to CMS data, Andrew Xavier is affiliated with Ascension Providence Hospital, Southfield And Novi, Beaumont Hospital - Dearborn and Mclaren Flint.

When was this NPI record last updated?

The NPPES record for Andrew Xavier was last updated on April 18, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months 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.