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

ILAVARASY MARAN MD
NPI 1619354727
Psychiatry & Neurology - Neurology in Buffalo, NY

Active since April 28, 2015PECOS EnrolledAccepts Medicare Assignment
100 HIGH ST, BUFFALO, NY 14203(716) 859-5600 Get Directions Write a Review

NPPES record last updated: September 3, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 3, 2026, Dec 9, 2015 (2 updates tracked since 2015).

About Ilavarasy Maran Md NPPES

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

ILAVARASY MARAN MD (NPI 1619354727) is an individual neurology provider in Buffalo, New York, licensed in New York (326313) and active in the NPI registry since April 2015. She is enrolled in Medicare PECOS and is a graduate of Other (2015).

NPPES Registry Identity

NPI1619354727
Entity TypeIndividualFemale
Primary Taxonomy2084N0400X
Provider Legal NameILAVARASY MARANCredential: MD
Location Address100 HIGH STBuffalo, NY 14203-1126
Mailing Address1001 Main StBuffalo, NY 14203-1009 · (716) 323-0645 · Fax (716) 829-3010
Sole ProprietorNo
Medical School CMSOtherGraduated 2015
Enumeration DateApril 28, 2015
Last NPPES UpdateSeptember 3, 20262 updates tracked since enumeration
NPPES CertifiedSeptember 3, 2026
✔ NPI 1619354727 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 NY · 326313
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.
100 HIGH ST, Buffalo, NY 14203

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

Ilavarasy Maran 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 ID42512899
PECOS Enrollment IDI20240208003373
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 Reassignments

2

Medicare enrollment records show Ilavarasy Maran reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Same address
General Acute Care Hospital
100 HIGH ST
Buffalo, NY 14203
  • Reassigned Medicare billing, New York enrollment
  • 676 clinicians in this Medicare group
Neurology
1010 MAIN ST
Buffalo, NY 14202
  • Reassigned Medicare billing, New York enrollment
  • 55 clinicians in this Medicare group

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

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.
12 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 14203 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
$126.40 typical visit price
range $54.87 – $166.88
Typical copayment $31.60 (range $13.71 – $41.72)
Most-billed visit code 99204
Established Patient
$97.08 typical visit price
range $17.54 – $136.14
Typical copayment $24.27 (range $4.38 – $34.03)
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.

Nurse Practitioner
100 HIGH ST
BUFFALO, NY 14203
Specialist
100 HIGH ST, RM C421
BUFFALO, NY 14203
Student in an Organized Health Care Education/Training Program
100 HIGH ST
BUFFALO, NY 14203
Hospitalist
100 HIGH ST
BUFFALO, NY 14203
Student in an Organized Health Care Education/Training Program
100 HIGH ST
BUFFALO, NY 14203
Student in an Organized Health Care Education/Training Program
100 HIGH ST
BUFFALO, NY 14203
Emergency Medicine
100 HIGH ST
BUFFALO, NY 14203
Registered Nurse (Registered Nurse First Assistant)
100 HIGH ST
BUFFALO, NY 14203

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 Ilavarasy Maran's NPI number?

The NPI number for Ilavarasy Maran is 1619354727. It was assigned to this individual provider in the NPPES registry on April 28, 2015.

Where is Ilavarasy Maran located?

Ilavarasy Maran practices at 100 High St, Buffalo, NY 14203. The listed phone number is (716) 859-5600.

What is Ilavarasy Maran's specialty?

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

Is Ilavarasy Maran enrolled in Medicare?

Yes. Ilavarasy Maran 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 organizations bill Medicare for Ilavarasy Maran's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ilavarasy Maran reassigns Medicare benefits to 2 organizations: Kaleida Health (Buffalo, NY) and University Neurology, Inc. (Buffalo, NY). Each 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 Ilavarasy Maran'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 Ilavarasy Maran was last updated on September 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 47 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.