ANDREW TREVOR WILLIAMSON
NPI 1437579422
Emergency Medicine in San Diego, CA

Q: What is Andrew Williamson's NPI number?

The NPI number for Andrew Williamson is 1437579422. It was assigned to this individual provider in the NPPES registry on April 17, 2014.

Q: What is Andrew Williamson'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 Andrew Williamson was last updated on May 24, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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 April 17, 2014PECOS EnrolledAccepts Medicare Assignment

7901 FROST ST, SAN DIEGO, CA 92123(858) 939-3400 Get Directions Write a Review

NPPES record last updated: May 24, 2018. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Andrew Trevor Williamson NPPES

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

ANDREW TREVOR WILLIAMSON (NPI 1437579422) is an individual emergency medicine provider in San Diego, California, licensed in California (A144673) and active in the NPI registry since April 2014. He is enrolled in Medicare PECOS and is a graduate of Tufts University School Of Medicine (2014).

NPPES Registry Identity

NPI1437579422

Entity TypeIndividualMale

Primary Taxonomy207P00000X

Provider Legal NameANDREW TREVOR WILLIAMSON

Location Address7901 FROST STSan Diego, CA 92123

Mailing Address7901 Frost StSan Diego, CA 92123-2701

Phone(858) 939-3400

Sole ProprietorNo

Medical School CMSTufts University School Of MedicineGraduated 2014

Enumeration DateApril 17, 2014

Last NPPES UpdateMay 24, 2018

✔ NPI 1437579422 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 · A144673

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.

7901 FROST ST, San Diego, CA 92123

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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

Andrew Trevor Williamson 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 ID2365715869

PECOS Enrollment IDI20180104000321

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 4

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.

162 services160 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.

144 services131 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.

40 services40 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.

23 services23 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92123 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

$94.87 typical visit price

range $62.10 – $184.71

Typical copayment $23.71 (range $15.52 – $46.17)

Most-billed visit code 99203

Established Patient

$108.42 typical visit price

range $20.62 – $151.42

Typical copayment $27.10 (range $5.15 – $37.85)

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.

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.

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