DR. MARY ALISSA WILLIS M.D.
NPI 1710188248
Psychiatry & Neurology - Neurology in Cleveland, OH

Q: What is Mary Willis's NPI number?

The NPI number for Mary Willis is 1710188248. It was assigned to this individual provider in the NPPES registry on May 31, 2007.

Q: What is Mary Willis'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 Mary Willis was last updated on June 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.

Active since May 31, 2007PECOS EnrolledAccepts Medicare Assignment

69.83/100

CMS Quality Rating

9500 EUCLID AVE, CLEVELAND, OH 44195(216) 444-8600(216) 445-7013 Get Directions Write a Review

NPPES record last updated: June 11, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jun 11, 2025, Oct 16, 2019, Jun 15, 2019 (3 updates tracked since 2019).

On this page

About Dr. Mary Alissa Willis M.d. NPPES

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

DR. MARY ALISSA WILLIS M.D. (NPI 1710188248) is an individual neurology provider in Cleveland, Ohio, licensed in Ohio (35.121567) and active in the NPI registry since May 2007. She is enrolled in Medicare PECOS, is affiliated with Fairview Hospital, and is a graduate of University Of Mississippi School Of Medicine (2007).

NPPES Registry Identity

NPI1710188248

Entity TypeIndividualFemale

Primary Taxonomy2084N0400X

Provider Legal NameDR. MARY ALISSA WILLISCredential: M.D.

Location Address9500 EUCLID AVECleveland, OH 44195-0001

Mailing Address9500 Euclid AveCleveland, OH 44195-0001 · (216) 645-0825

Phone(216) 444-8600

Fax(216) 445-7013

Sole ProprietorNo

Medical School CMSUniversity Of Mississippi School Of MedicineGraduated 2007

Enumeration DateMay 31, 2007

Last NPPES UpdateJune 11, 20253 updates tracked since enumeration

NPPES CertifiedJune 11, 2025

✔ NPI 1710188248 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 OH · 35.121567✔ Licensed in MS · 20793

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.

9500 EUCLID AVE, Cleveland, OH 44195

Open in Google Maps ↗

Other Identifiers 1

Medicaid141729AL

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Magnolia 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. Mary Alissa Willis 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 ID7012171093

PECOS Enrollment IDI20130711000917

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 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.

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.

85 services50 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.

45 services42 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.

43 services41 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.

27 services24 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.

17 services13 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

15 services15 patients

Hospital Affiliations CMS Care Compare 3

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

Fairview Hospital

Acute Care Hospitals · Cleveland, OH

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number360077

Location18101 Lorain AvenueCleveland, OH 44111 · Cuyahoga County

Emergency services Birthing friendly

Cleveland Clinic

Acute Care Hospitals · Cleveland, OH

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number360180

Location9500 Euclid AvenueCleveland, OH 44195 · Cuyahoga County

Emergency services Birthing friendly

Hillcrest Hospital

Acute Care Hospitals · Mayfield Heights, OH

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number360230

Location6780 Mayfield RoadMayfield Heights, OH 44124 · Cuyahoga County

Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 44195 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

$126.12 typical visit price

range $54.34 – $166.65

Typical copayment $31.53 (range $13.58 – $41.66)

Most-billed visit code 99204

Established Patient

$96.44 typical visit price

range $17.10 – $135.40

Typical copayment $24.11 (range $4.27 – $33.85)

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.

69.83/100

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

Scored as part of a group practice

Quality

56.08

Promoting Interoperability

Improvement Activities

Cost

48.31

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.

MS. MARY COLLEEN RATH R.D., L.D., CNSC

Dietitian, Registered

9500 EUCLID AVE, M17
CLEVELAND, OH 44195

Cuyahoga County (216) 444-6986

DR. CHRISTOPHER F TENGGARDJAJA M.D.

Urology (Urogynecology and Reconstructive Pelvic Surgery)

9500 EUCLID AVE, Q10-1
CLEVELAND, OH 44195

Cuyahoga County (216) 444-5600

DR. MASATO FUJIKI M.D., PH.D.

Surgery

9500 EUCLID AVE
CLEVELAND, OH 44195

Cuyahoga County (216) 444-8007

KRISTIN R JOHNSON CNP

Nurse Practitioner

9500 EUCLID AVE
CLEVELAND, OH 44195

Cuyahoga County (800) 223-2273

MONICA LYNN SHEIN CRNA

Nurse Anesthetist, Certified Registered

9500 EUCLID AVE
CLEVELAND, OH 44195

Cuyahoga County (800) 223-2273

MRS. TONYA RENEE GOINGS ACNP-BC

Nurse Practitioner (Acute Care)

9500 EUCLID AVE, SUITE RC25
CLEVELAND, OH 44195

Cuyahoga County (216) 444-2200

MS. DANA ANNE RUBIS CNP

Nurse Practitioner (Critical Care Medicine)

9500 EUCLID AVE, G58
CLEVELAND, OH 44195

Cuyahoga County (216) 444-5086

DR. RACHAEL C SULLIVAN M.D.

Surgery

9500 EUCLID AVE
CLEVELAND, OH 44195

Cuyahoga County (440) 449-1101

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 Mary Willis's NPI number?

The NPI number for Mary Willis is 1710188248. It was assigned to this individual provider in the NPPES registry on May 31, 2007.

Where is Mary Willis located?

Mary Willis practices at 9500 Euclid Ave, Cleveland, OH 44195. The listed phone number is (216) 444-8600.

What is Mary Willis's specialty?

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

Is Mary Willis enrolled in Medicare?

Yes. Mary Willis 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 Mary Willis accept?

Health plans from Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Magnolia Health, Ambetter of Alabama and Ambetter of Tennessee list Mary Willis 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 Mary Willis affiliated with any hospitals?

According to CMS data, Mary Willis is affiliated with Fairview Hospital, Cleveland Clinic and Hillcrest Hospital.

When was this NPI record last updated?

The NPPES record for Mary Willis was last updated on June 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.