MR. WILLIAM AARON KAY MD
NPI 1700094307
Internal Medicine - Adult Congenital Heart Disease in Fairfield, OH

Active since May 18, 2007PECOS EnrolledAccepts Medicare Assignment
3000 MACK RD STE 100, FAIRFIELD, OH 45014(513) 751-4222(513) 874-3023 Get Directions Write a Review

NPPES record last updated: November 20, 2023. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Nov 20, 2023, Mar 17, 2021, Sep 4, 2020 (3 updates tracked since 2020).

About Mr. William Aaron Kay Md NPPES

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

MR. WILLIAM AARON KAY MD (NPI 1700094307) is an individual adult congenital heart disease provider in Fairfield, Ohio, licensed in Ohio (35.087717) and active in the NPI registry since May 2007. He is enrolled in Medicare PECOS, is affiliated with The Jewish Hospital-mercy Health, and is a graduate of Indiana University School Of Medicine (2004).

NPPES Registry Identity

NPI1700094307
Entity TypeIndividualMale
Primary Taxonomy207RA0002X
Provider Legal NameMR. WILLIAM AARON KAYCredential: MD
Location Address3000 MACK RD STE 100Fairfield, OH 45014-5335
Mailing Address3000 Mack Rd Ste 100Fairfield, OH 45014-5335 · (513) 751-4222 · Fax (513) 874-3023
Fax(513) 874-3023
Sole ProprietorNo
Medical School CMSIndiana University School Of MedicineGraduated 2004
Enumeration DateMay 18, 2007
Last NPPES UpdateNovember 20, 20233 updates tracked since enumeration
NPPES CertifiedNovember 20, 2023
NPI 1700094307 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

Primary SpecialtyInternal Medicine · Adult Congenital Heart DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RA0002X
License Licensed in OH · 35.087717
Definition
A physician who specializes in the care and treatment of adults with congenital heart disease. Adult congenital heart disease (ACHD) physicians are trained to understand the complexities of congenital heart disease, anatomy, physiology, surgical repairs, and long-term complications and use that to manage ACHD with acquired heart disease, including heart failure, arrhythmias, and pulmonary hypertension.
Also ListedInternal Medicine · Cardiovascular DiseaseTaxonomy 207RC0000X · License 01072677A (IN)
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X · License 35.087717 (OH)
3000 MACK RD STE 100, Fairfield, OH 45014

Other Identifiers 1

Medicaid201157870IN

Accepted 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

Mr. William Aaron Kay 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 ID4587822861
PECOS Enrollment IDI20120215000621
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 22

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.

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010
A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.
890 services707 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.
185 services136 patients
Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306
This is a heart ultrasound, also known as an echocardiogram. It uses sound waves to create pictures of your heart, showing how blood flows through it. The color depicts the blood flow's speed and direction. It also checks the heart's valves to ensure they're working properly.
163 services162 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000
An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.
137 services128 patients
Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306
This is a heart ultrasound, also known as an echocardiogram. It uses sound waves to create pictures of your heart, showing how blood flows through it. The color depicts the blood flow's speed and direction. It also checks the heart's valves to ensure they're working properly.
83 services82 patients
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.
83 services83 patients

Hospital Affiliations CMS Care Compare 4

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

The Jewish Hospital-Mercy Health

Acute Care Hospitals · Cincinnati, OH
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number360016
Location4777 East Galbraith RoadCincinnati, OH 45236 · Hamilton County
Emergency services

Mercy Health - Fairfield Hospital

Acute Care Hospitals · Fairfield, OH
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number360056
Location3000 Mack RoadFairfield, OH 45014 · Butler County
Emergency services Birthing friendly

Mercy Health - West Hospital

Acute Care Hospitals · Cincinnati, OH
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number360234
Location3300 Mercy Health BlvdCincinnati, OH 45211 · Hamilton County
Emergency services Birthing friendly

Mercy Health - Clermont Hospital

Acute Care Hospitals · Batavia, OH
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number360236
Location3000 Hospital DriveBatavia, OH 45103 · Clermont County
Emergency services

Other Providers at the Same Location NPPES 15

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

Nurse Practitioner (Acute Care)
3000 MACK RD STE 100
FAIRFIELD, OH 45014
Internal Medicine (Cardiovascular Disease)
3000 MACK RD STE 100
FAIRFIELD, OH 45014
Nurse Practitioner (Adult Health)
3000 MACK RD STE 100
FAIRFIELD, OH 45014
Nurse Practitioner (Family)
3000 MACK RD STE 100
FAIRFIELD, OH 45014
Internal Medicine (Cardiovascular Disease)
3000 MACK RD STE 100
FAIRFIELD, OH 45014
Internal Medicine (Cardiovascular Disease)
3000 MACK RD STE 100
FAIRFIELD, OH 45014
Internal Medicine (Cardiovascular Disease)
3000 MACK RD STE 100
FAIRFIELD, OH 45014
Internal Medicine (Cardiovascular Disease)
3000 MACK RD STE 100
FAIRFIELD, OH 45014

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 William Kay's NPI number?

The NPI number for William Kay is 1700094307. It was assigned to this individual provider in the NPPES registry on May 18, 2007.

Where is William Kay located?

William Kay practices at 3000 Mack Rd Ste 100, Fairfield, OH 45014. The listed phone number is (513) 751-4222.

What is William Kay's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Adult Congenital Heart Disease, with taxonomy code 207RA0002X.

Is William Kay enrolled in Medicare?

Yes. William Kay 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 William Kay accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Antidote Health Plan of Ohio, Inc. and CareSource and 3 other insurers list William Kay 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 William Kay affiliated with any hospitals?

According to CMS data, William Kay is affiliated with The Jewish Hospital-Mercy Health, Mercy Health - Fairfield Hospital, Mercy Health - West Hospital and Mercy Health - Clermont Hospital.

When was this NPI record last updated?

The NPPES record for William Kay was last updated on November 20, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.