RUTH HWANG MS, PA-C
NPI 1821332156
Physician Assistant in Fullerton, CA

Active since November 27, 2012PECOS EnrolledAccepts Medicare Assignment
100 E VALENCIA MESA DR STE 105, FULLERTON, CA 92835(714) 449-4950 Get Directions Write a Review

NPPES record last updated: October 19, 2020. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Oct 19, 2020, Mar 27, 2018 (2 updates tracked since 2018).

About Ruth Hwang Ms, Pa-c NPPES

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

RUTH HWANG MS, PA-C (NPI 1821332156) is an individual physician assistant in Fullerton, California, licensed in Arizona (5211) and active in the NPI registry since November 2012. She is enrolled in Medicare PECOS, maintains a secondary practice location in Phoenix, and is a graduate of Other (2012).

NPPES Registry Identity

NPI1821332156
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameRUTH HWANGCredential: MS, PA-C
Location Address100 E VALENCIA MESA DR STE 105Fullerton, CA 92835-3816
Mailing Address12020 S Warner Elliot Loop Ste 101Phoenix, AZ 85044-2712
Sole ProprietorNo
Medical School CMSOtherGraduated 2012
Enumeration DateNovember 27, 2012
Last NPPES UpdateOctober 19, 20202 updates tracked since enumeration
NPPES CertifiedOctober 19, 2020
NPI 1821332156 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License Licensed in AZ · 5211
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
100 E VALENCIA MESA DR STE 105, Fullerton, CA 92835

Secondary Practice Location 1

Location 112020 S Warner Elliot Loop Ste 101Phoenix, AZ 85044-2712 · Phone (480) 751-1900

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

Ruth Hwang Ms, Pa-c 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 ID3678728409
PECOS Enrollment IDI20180402001816
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 3

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.

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.
216 services103 patients
Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report 95251
This procedure involves placing a small sensor under your skin to continuously monitor your blood sugar levels in tissue fluid. The data is interpreted and a report is generated to help manage your diabetes more effectively.
105 services53 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
13 services13 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
$77.96 typical visit price
range $20.84 – $153.61
Typical copayment $19.49 (range $5.21 – $38.40)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
4 suppliers12 claims37 services$6.02 avg. paid by Medicare
Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553
DME-Other DME · category DE017N
7 suppliers142 claims142 services$186.31 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 6

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

Internal Medicine (Endocrinology, Diabetes & Metabolism)
100 E VALENCIA MESA DR STE 105
FULLERTON, CA 92835
Internal Medicine (Endocrinology, Diabetes & Metabolism)
100 E VALENCIA MESA DR STE 105
FULLERTON, CA 92835
Internal Medicine (Endocrinology, Diabetes & Metabolism)
100 E VALENCIA MESA DR STE 105
FULLERTON, CA 92835
Internal Medicine (Endocrinology, Diabetes & Metabolism)
100 E VALENCIA MESA DR STE 105
FULLERTON, CA 92835
Registered Nurse
100 E VALENCIA MESA DR STE 105
FULLERTON, CA 92835
Internal Medicine (Endocrinology, Diabetes & Metabolism)
100 E VALENCIA MESA DR STE 105
FULLERTON, CA 92835

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 Ruth Hwang's NPI number?

The NPI number for Ruth Hwang is 1821332156. It was assigned to this individual provider in the NPPES registry on November 27, 2012.

Where is Ruth Hwang located?

Ruth Hwang practices at 100 E Valencia Mesa Dr Ste 105, Fullerton, CA 92835. The listed phone number is (714) 449-4950.

What is Ruth Hwang's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Ruth Hwang enrolled in Medicare?

Yes. Ruth Hwang 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 Ruth Hwang was last updated on October 19, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.