MATTHEW MCKAY MD
NPI 1184653966
Emergency Medicine in Fullerton, CA

Q: What is Matthew Mckay's NPI number?

The NPI number for Matthew Mckay is 1184653966. It was assigned to this individual provider in the NPPES registry on July 2, 2006.

Q: What is Matthew Mckay's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Q: When was this NPI record last updated?

The NPPES record for Matthew Mckay was last updated on September 18, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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 July 02, 2006PECOS Enrolled

84.95/100

CMS Quality Rating

101 E VALENCIA MESA DR, EM DEPT, FULLERTON, CA 92835(714) 992-3965 Get Directions Write a Review

NPPES record last updated: September 18, 2009. Verified against the NPPES registry weekly; last sync: November 01, 2026.

On this page

About Matthew Mckay Md NPPES

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

MATTHEW MCKAY MD (NPI 1184653966) is an individual emergency medicine provider in Fullerton, California, licensed in California (G68542) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1184653966

Entity TypeIndividualMale

Primary Taxonomy207P00000X

Provider Legal NameMATTHEW MCKAYCredential: MD

Location Address101 E VALENCIA MESA DR, EM DEPTFullerton, CA 92835-3809

Mailing Address4401 W Memorial Rd, Suite 121Oklahoma City, OK 73134-1785 · (405) 751-4664 · Fax (405) 749-4561

Phone(714) 992-3965

Sole ProprietorNo

Enumeration DateJuly 2, 2006

Last NPPES UpdateSeptember 18, 2009

✔ NPI 1184653966 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207P00000X

License✔ Licensed in CA · G68542

Definition

An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.

101 E VALENCIA MESA DR, Fullerton, CA 92835

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Other Identifiers 7

Other00G685420CA · Blue Shield

Medicare UPINF11722

Medicaid00G685420CA

OtherG68542CA · Anthem Blue Cross

Medicare PIN930103079CA

MedicaidWG68542HCA

Medicare PINHG68542CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Matthew Mckay Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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

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

St Jude Emergency Medical Group Inc

Same address

Emergency Medicine

101 E VALENCIA MESA DR, EM DEPT
Fullerton, CA 92835

Reassigned Medicare billing, California enrollment
52 clinicians in this Medicare group

NPI 1720190804 (949) 300-9287

Infusion4health

58 mi

Infusion Therapy

77 ROLLING OAKS DR STE 201
Thousand Oaks, CA 91361

Reassigned Medicare billing, California enrollment
72 clinicians in this Medicare group

NPI 1508262213 (805) 719-3700

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 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.

Emergency department visit with high level of medical decision making 99285

An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.

299 services295 patients

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.

250 services244 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.

191 services186 patients

Emergency department visit with moderate level of medical decision making 99284

An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.

101 services95 patients

Emergency department visit with low level of medical decision making 99283

An emergency department visit for a problem of moderate severity involves immediate medical attention for issues like minor fractures, burns, or high fever. The healthcare team will assess your condition, provide necessary treatment, and may suggest further tests or admission if required.

11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92835 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

$96.36 typical visit price

range $62.96 – $187.60

Typical copayment $24.09 (range $15.74 – $46.90)

Most-billed visit code 99203

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.

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.

84.95/100

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

Scored as part of a group practice

Quality

70.53

Improvement Activities

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.

PIUS J. KIM M.D.

Internal Medicine