DR. OLIVIA HUI-CHIUN CHANG M.D., M.P.H.
NPI 1881936862
Obstetrics & Gynecology - Urogynecology and Reconstructive Pelvic Surgery in Orange, CA

Q: What is Olivia Chang's NPI number?

The NPI number for Olivia Chang is 1881936862. It was assigned to this individual provider in the NPPES registry on March 18, 2013.

Q: What is Olivia Chang's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Urogynecology and Reconstructive Pelvic Surgery, with taxonomy code 207VF0040X.

Q: When was this NPI record last updated?

The NPPES record for Olivia Chang was last updated on February 3, 2023. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since March 18, 2013PECOS EnrolledAccepts Medicare Assignment

101 THE CITY DR S, ORANGE, CA 92868(714) 880-7812 Get Directions Write a Review

NPPES record last updated: February 3, 2023. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Feb 3, 2023, Nov 3, 2022, Aug 19, 2021 and 1 more (4 updates tracked since 2019).

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About Dr. Olivia Hui-chiun Chang M.d., M.p.h. NPPES

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

DR. OLIVIA HUI-CHIUN CHANG M.D., M.P.H. (NPI 1881936862) is an individual urogynecology and reconstructive pelvic surgery provider in Orange, California, licensed in California (A182272) and active in the NPI registry since March 2013. She is enrolled in Medicare PECOS, maintains a secondary practice location in Seattle, and is a graduate of Tulane University School Of Medicine (2013).

NPPES Registry Identity

NPI1881936862

Entity TypeIndividualFemale

Primary Taxonomy207VF0040X

Provider Legal NameDR. OLIVIA HUI-CHIUN CHANGCredential: M.D., M.P.H.

Location Address101 THE CITY DR SOrange, CA 92868-3201

Mailing Address200 S Manchester Ave Ste 300Orange, CA 92868-3219 · (714) 456-2986

Phone(714) 880-7812

Sole ProprietorNo

Medical School CMSTulane University School Of MedicineGraduated 2013

Enumeration DateMarch 18, 2013

Last NPPES UpdateFebruary 3, 20234 updates tracked since enumeration

NPPES CertifiedJanuary 27, 2023

✔ NPI 1881936862 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyObstetrics & Gynecology · Urogynecology and Reconstructive Pelvic SurgeryAllopathic & Osteopathic Physicians

Taxonomy Code207VF0040X

License✔ Licensed in CA · A182272

Definition

A subspecialist in Urogynecology and Reconstructive Pelvic Surgery is a physician in Urology or Obstetrics and Gynecology who, by virtue of education and training, is prepared to provide consultation and comprehensive management of women with complex benign pelvic conditions, lower urinary tract disorders, and pelvic floor dysfunction. Comprehensive management includes those diagnostic and therapeutic procedures necessary for the total care of the patient with these conditions and complications resulting from them.

Also ListedObstetrics & GynecologyTaxonomy 207V00000X · License MD61185981 (WA), A182272 (CA)

101 THE CITY DR S, Orange, CA 92868

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Secondary Practice Location 1

Location 11959 NE Pacific StSeattle, WA 98195-0001 · Phone (206) 520-5000

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

Dr. Olivia Hui-chiun Chang M.d., M.p.h. 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 ID2264758762

PECOS Enrollment IDI20221017003168

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 23

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.

Injection, onabotulinumtoxina, 1 unit J0585

Onabotulinumtoxina, also known as Botox, is a medication injected into muscles. It's used to treat various conditions by blocking nerve activity in the muscles, causing a temporary reduction in muscle activity. The units refer to the dosage.

2,101 services13 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.

108 services90 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.

70 services70 patients

Insertion of temporary bladder tube 51701

This procedure involves placing a small tube into your lower abdomen to help drain urine from your bladder. It's a temporary measure, often used when normal urination is not possible. The tube remains in place until you can urinate on your own again.

55 services54 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

55 services55 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

51 services45 patients

Insertion of temporary bladder tube 51701

46 services46 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

46 services39 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.

41 services36 patients

Complex measurement of pressure of urine flow in bladder with voiding pressure studies 51728

This procedure measures the pressure in your bladder as it fills and empties. It helps to understand how well your bladder is functioning. Sensors record pressure levels during these processes, providing valuable data for your doctor.

26 services26 patients

Electronic assessment of bladder emptying 51741

Electronic assessment of bladder emptying is a non-invasive test that measures how well your bladder functions. It uses ultrasound technology to create images of your bladder before and after you use the restroom, helping to identify any issues with bladder emptying.

26 services26 patients

Non-needle measurement and recording of electrical activity of muscles at bladder and bowel openings 51784

This procedure involves the use of non-invasive devices to record the electrical activity of muscles at specific body openings. It's helpful in understanding muscle function and can assist in diagnosing certain conditions.

26 services26 patients

Diagnostic exam of bladder and urethra using an endoscope 52000

This procedure involves using a thin, flexible tube with a light, called an endoscope, to examine the bladder and urethra. It helps in identifying any abnormalities or issues that may be causing discomfort or other symptoms.

26 services26 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

26 services21 patients

Insertion of device into abdomen with pressure and urine flow rate study 51797

This procedure involves placing a small device into your abdomen to monitor pressure and urine flow rates. It helps in understanding how well your body is processing and eliminating liquid waste. It's a safe procedure, typically performed under local anesthesia.

25 services25 patients

Exam with injections of chemical for destruction of bladder using an endoscope 52287

This procedure involves the use of a thin, flexible tube with a light (endoscope) for internal examination. A chemical is then injected to help eliminate specific issues in the bladder. It's a standard and safe process.

22 services15 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

21 services21 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

21 services20 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

20 services20 patients

Insertion of sacral nerve neurostimulator electrode array 64561

The insertion of a sacral nerve neurostimulator electrode array is a procedure where a small device is placed under your skin. This device sends mild electrical pulses to your sacral nerves, which can help manage certain body functions and alleviate symptoms.

16 services14 patients

Diagnostic exam of bladder and urethra using an endoscope 52000

13 services13 patients

Injection procedure for imaging of bladder during voiding 51600

This procedure involves injecting a safe, contrasting material into your bladder through a small tube. This helps capture clear images during voiding. The process helps doctors understand your bladder's function better and identify any potential issues.

11 services11 patients

Review by radiologist of urinary bladder and urethra images with contrast and after passing urine 74455

This procedure involves a specialist examining images of your bladder and urine passage. A contrast agent helps highlight these areas better. After you empty your bladder, another set of images is taken for comparison. This helps identify any abnormalities.

11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92868 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

$142.39 typical visit price

range $62.96 – $187.60

Typical copayment $35.59 (range $15.74 – $46.90)

Most-billed visit code 99204

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.

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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.

DR. ANKIT BHUPENDRA PATEL D.O.

Radiology (Diagnostic Radiology)

101 THE CITY DR S
ORANGE, CA 92868

Orange County (714) 456-5113

DR. LAURA CATHERINE SKOCZYLAS MD

Obstetrics & Gynecology

101 THE CITY DR S, BUILDING 56, DEPARTMENT OF OB/GYN
ORANGE, CA 92868

Orange County (714) 456-8224

MICHAEL CHENG DO

Internal Medicine (Rheumatology)

101 THE CITY DR S
ORANGE, CA 92868

Orange County (714) 456-7110

AESTHETIC AND PLASTIC SURGERY INSTITUTE

Plastic Surgery

101 THE CITY DR S
ORANGE, CA 92868

Orange County (714) 456-2986

JOSEPH VILLARREAL M.D.

Emergency Medicine

101 THE CITY DR S, BUILDING 1A, ROOM 1009
ORANGE, CA 92868

Orange County (714) 456-5239

DEMI TRAN

Psychiatry & Neurology (Neurology)

101 THE CITY DR S, CITY TOWER, SUITE 400
ORANGE, CA 92868

Orange County (171) 456-6693

DR. ISABEL CARLTON CLARK M.D.

Surgery (Trauma Surgery)

101 THE CITY DR S
ORANGE, CA 92868

Orange County (714) 456-7890

DYLAN LUKATO

Emergency Medicine

101 THE CITY DR S
ORANGE, CA 92868

Orange County (415) 218-8041

HARRY NGUYEN D.O.

Internal Medicine (Hepatology)

101 THE CITY DR S
ORANGE, CA 92868

Orange County (714) 456-7002

MILLIE ARORA

Internal Medicine

101 THE CITY DR S, CITY TOWER, SUITE 400
ORANGE, CA 92868

Orange County (714) 456-5691

MIRANDA G IDEAL CRNA

Nurse Anesthetist, Certified Registered

101 THE CITY DR S
ORANGE, CA 92868

Orange County (714) 880-7812

MARYAM AHMADI MD

Pathology (Clinical Pathology/Laboratory Medicine)

101 THE CITY DR S
ORANGE, CA 92868

Orange County (714) 456-8888

DR. ELIANA LIZETH GARCIA MD

Student in an Organized Health Care Education/Training Program

101 THE CITY DR S
ORANGE, CA 92868

Orange County (714) 456-8224

DR. ANTONIO HALAIS FRANGIEH MD, MPH

Internal Medicine (Interventional Cardiology)

101 THE CITY DR S
ORANGE, CA 92868

Orange County (714) 456-7890

SABRINA YASMEEN MIR MD

Student in an Organized Health Care Education/Training Program

101 THE CITY DR S
ORANGE, CA 92868

Orange County (714) 456-5691

UC REGENTS

Internal Medicine (Allergy & Immunology)

101 THE CITY DR S
ORANGE, CA 92868

Orange County (714) 456-8068

UC REGENTS

Internal Medicine (Rheumatology)

101 THE CITY DR S
ORANGE, CA 92868

Orange County (714) 456-8068

MARK E WYLAM M.D.

Internal Medicine (Critical Care Medicine)

101 THE CITY DR S
ORANGE, CA 92868

Orange County (714) 456-7890

DR. LAWRENCE RICHARD FAZIOLA M.D.

Psychiatry & Neurology (Psychiatry)

101 THE CITY DR S, ROUTE 88
ORANGE, CA 92868

Orange County (714) 506-0693

SCOTT AU M.D.

Physical Medicine & Rehabilitation (Pain Medicine)

101 THE CITY DR S, BLDG 53 RM B3
ORANGE, CA 92868

Orange County (714) 456-6444

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 Olivia Chang's NPI number?

The NPI number for Olivia Chang is 1881936862. It was assigned to this individual provider in the NPPES registry on March 18, 2013.

Where is Olivia Chang located?

Olivia Chang practices at 101 The City Dr S, Orange, CA 92868. The listed phone number is (714) 880-7812.

What is Olivia Chang's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Urogynecology and Reconstructive Pelvic Surgery, with taxonomy code 207VF0040X.

Is Olivia Chang enrolled in Medicare?

Yes. Olivia Chang 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 Olivia Chang was last updated on February 3, 2023. NPI Profile syncs with the weekly NPPES data releases published by CMS.