MATTHEW AARON WILLIAMSON PA
NPI 1831173111
Clinical Nurse Specialist - Emergency in Turlock, CA

Active since December 01, 2005PECOS EnrolledAccepts Medicare Assignment
79.22/100
CMS Quality Rating
825 DELBON AVE, TURLOCK, CA 95382(209) 342-2300(209) 524-4240 Get Directions Write a Review

NPPES record last updated: October 9, 2007. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Matthew Aaron Williamson Pa NPPES

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

MATTHEW AARON WILLIAMSON PA (NPI 1831173111) is an individual emergency provider in Turlock, California, licensed in California (PA18033) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS and is a graduate of Other (2005).

NPPES Registry Identity

NPI1831173111
Entity TypeIndividualMale
Primary Taxonomy364SE0003X
Provider Legal NameMATTHEW AARON WILLIAMSONCredential: PA
Location Address825 DELBON AVETurlock, CA 95382-2016
Mailing Address4301 Northstar WayModesto, CA 95356-9262 · (209) 342-2300 · Fax (209) 524-4240
Fax(209) 524-4240
Sole ProprietorNo
Medical School CMSOtherGraduated 2005
Enumeration DateDecember 1, 2005
Last NPPES UpdateOctober 9, 2007
NPI 1831173111 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyClinical Nurse Specialist · EmergencyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code364SE0003X
License Licensed in CA · PA18033
825 DELBON AVE, Turlock, CA 95382

Other Identifiers 3

Medicare PIN0PA180330CA
Medicare UPINQ55639CA
Medicaid0PA180330CA

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

Matthew Aaron Williamson Pa 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 ID9032137096
PECOS Enrollment IDI20051108000643
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 14

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.
438 services421 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.
280 services269 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.
196 services179 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.
80 services77 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
48 services47 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.
32 services32 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95382 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
$133.94 typical visit price
range $58.87 – $176.60
Typical copayment $33.48 (range $14.71 – $44.15)
Most-billed visit code 99204
Established Patient
$103.36 typical visit price
range $19.28 – $144.60
Typical copayment $25.84 (range $4.82 – $36.15)
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.

79.22/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality86.14
Promoting Interoperability97
Improvement Activities40
Cost47.11

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
825 DELBON AVE
TURLOCK, CA 95382
Emergency Medicine
825 DELBON AVE
TURLOCK, CA 95382
Physician Assistant
825 DELBON AVE
TURLOCK, CA 95382
Nurse Practitioner (Family)
825 DELBON AVE
TURLOCK, CA 95382
Obstetrics & Gynecology
825 DELBON AVE
TURLOCK, CA 95382
Physician Assistant
825 DELBON AVE
TURLOCK, CA 95382
Internal Medicine
825 DELBON AVE
TURLOCK, CA 95382
Social Worker (Clinical)
825 DELBON AVE
TURLOCK, CA 95382

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 Matthew Williamson's NPI number?

The NPI number for Matthew Williamson is 1831173111. It was assigned to this individual provider in the NPPES registry on December 1, 2005.

Where is Matthew Williamson located?

Matthew Williamson practices at 825 Delbon Ave, Turlock, CA 95382. The listed phone number is (209) 342-2300.

What is Matthew Williamson's specialty?

The primary specialty registered for this NPI is Clinical Nurse Specialist, specializing in Emergency, with taxonomy code 364SE0003X.

Is Matthew Williamson enrolled in Medicare?

Yes. Matthew Williamson 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.

When was this NPI record last updated?

The NPPES record for Matthew Williamson was last updated on October 9, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.