BESS LEE CHANG D.O.
NPI 1942228515
Psychiatry & Neurology - Neurology in Las Vegas, NV

Q: What is Bess Chang's NPI number?

The NPI number for Bess Chang is 1942228515. It was assigned to this individual provider in the NPPES registry on July 18, 2006.

Q: What is Bess Chang's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.

Q: When was this NPI record last updated?

The NPPES record for Bess Chang was last updated on January 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 months 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 18, 2006PECOS EnrolledAccepts Medicare Assignment

97.84/100

CMS Quality Rating

8530 W SUNSET RD STE 350, LAS VEGAS, NV 89113(702) 851-1065(702) 851-1066 Get Directions Write a Review

NPPES record last updated: January 8, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Bess Lee Chang D.o. NPPES

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

BESS LEE CHANG D.O. (NPI 1942228515) is an individual neurology provider in Las Vegas, Nevada, licensed in Nevada (1056) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS and is a graduate of At Still University Of Health Sciences, College Of Osteo Med, Kirksville (1995).

NPPES Registry Identity

NPI1942228515

Entity TypeIndividualFemale

Primary Taxonomy2084N0400X

Provider Legal NameBESS LEE CHANGCredential: D.O.

Location Address8530 W SUNSET RD STE 350Las Vegas, NV 89113-2247

Mailing AddressPo Box 777910Henderson, NV 89077-7910 · (702) 851-1065 · Fax (702) 851-1066

Phone(702) 851-1065

Fax(702) 851-1066

Sole ProprietorYes

Medical School CMSAt Still University Of Health Sciences, College Of Osteo Med, KirksvilleGraduated 1995

Enumeration DateJuly 18, 2006

Last NPPES UpdateJanuary 8, 2026

NPPES CertifiedJanuary 8, 2026

✔ NPI 1942228515 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · NeurologyAllopathic & Osteopathic Physicians

Taxonomy Code2084N0400X

License✔ Licensed in NV · 1056

Definition

A Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures.

8530 W SUNSET RD STE 350, Las Vegas, NV 89113

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Other Identifiers 1

OtherDN1018NV · Rail Road Pin Number

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health.Insurance ›

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

Bess Lee Chang D.o. 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 ID5799740213

PECOS Enrollment IDI20070303000095

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 21

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, immune globulin (bivigam), 500 mg J1556

The immune globulin injection (Bivigam) is a treatment that boosts your immune system. It's given when your body can't produce enough antibodies to fight infections. This 500mg dose helps protect you from diseases and infections.

76,285 services50 patients

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.

26,100 services18 patients

Injection, incobotulinumtoxin a, 1 unit J0588

Incobotulinumtoxin A, 1 unit, is an injection commonly known as Botox. It's used to treat various conditions like muscle spasms or wrinkles. The substance temporarily paralyzes muscles, providing relief or aesthetic improvement.

22,000 services21 patients

Injection, immune globulin, (octagam), intravenous, non-lyophilized (e.g., liquid), 500 mg J1568

This procedure involves an intravenous injection of Octagam, a liquid immune globulin. It is a blood product that helps your body fight off infections. It's given through a vein (IV) and each dose contains 500 mg of the medication.

20,050 services21 patients

Injection, dexamethasone sodium phosphate, 1 mg J1100

Dexamethasone sodium phosphate is a medication given via injection. It is a type of steroid that helps reduce inflammation and immune responses. It can be used to treat a variety of conditions, such as allergies, skin conditions, arthritis, and more.

4,090 services16 patients

Needle measurement of electrical activity in arm or leg muscles, complete study 95886

This procedure, known as an electromyography (EMG), involves inserting a small needle into your arm or leg muscles to measure their electrical activity. This complete study helps diagnose issues with nerves or muscles, providing valuable data for your treatment plan.

1,789 services495 patients

Infusion into a vein for therapy, prevention, or diagnosis, each additional hour 96366

This procedure involves delivering medication, fluids, or nutrients directly into your vein. This is done to treat, prevent, or diagnose various conditions. Each additional hour refers to the extended time you may need to receive these substances for optimal results.

1,470 services68 patients

Injection of additional new drug or substance into vein 96375

This procedure involves introducing a new medication or substance into your bloodstream via a vein. It's typically done using a small needle. The substance can help treat various conditions or assist in diagnostic procedures. It's generally safe and monitored by professionals.

1,359 services61 patients

Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less 96365

This is a procedure where a medical professional inserts a small tube into your vein to deliver medication, nutrients, or fluids directly into your bloodstream. This can be for treatment, prevention, or diagnosis. The process typically takes less than an hour.

1,234 services70 patients

Injection, diphenhydramine hcl, up to 50 mg J1200

Diphenhydramine HCL injection is a medicine given to alleviate symptoms of allergies, colds, or hay fever. It can also help with motion sickness and certain symptoms of Parkinson's disease. Up to 50 mg may be administered depending on your condition.

1,037 services61 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.

1,030 services346 patients

Nerve conduction, 13 or more studies 95913

Nerve conduction studies involve 13 or more tests to check the speed and strength of signals traveling between your nerves and muscles. It helps diagnose conditions affecting nerves and muscles. The test involves small shocks and may cause minor discomfort.

893 services494 patients

Measurement of brain wave activity (eeg), awake and asleep 95819

The measurement of brain wave activity, known as an EEG, records the brain's electrical signals. It's performed when you're awake and asleep to monitor your brain's functioning. It helps in diagnosing conditions like epilepsy, sleep disorders, and other neurological issues.

374 services313 patients

Measurement of brain wave activity (eeg), digital analysis 95957

The measurement of brain wave activity, or EEG, involves recording and analyzing electrical signals from your brain. Small sensors are placed on the scalp to capture these signals. This digital analysis helps in diagnosing conditions like epilepsy or sleep disorders.

311 services259 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.

77 services77 patients

Injection of chemical for paralysis of nerve muscles on trunk, 6 or more muscles 64647

This procedure involves injecting a chemical into specific muscles in your torso to temporarily paralyze them. This is done to manage various medical conditions causing muscle spasms or pain. The process targets 6 or more muscles, ensuring relief in larger areas.

70 services18 patients

Needle measurement of electrical activity in muscle with injection of chemical for paralysis of nerve muscle 95874

This procedure involves a needle that measures the electrical activity in your muscles. A chemical is then injected to temporarily paralyze the nerve muscle. This helps in diagnosing and treating certain muscle or nerve conditions.

64 services18 patients

Injection of chemical for paralysis of nerve muscles on arm or leg, 1-4 muscles, first extremity 64642

This procedure involves injecting a chemical into specific muscles in your arm or leg, causing temporary paralysis. It targets 1-4 muscles in the first extremity. It's often used to manage conditions that cause muscle spasms or overactivity.

57 services14 patients

Injection of chemical for paralysis of nerve muscles on side of neck excluding voice box 64616

This procedure involves injecting a chemical into specific neck muscles, causing temporary paralysis. It's designed to alleviate symptoms related to nerve disorders. The voice box isn't affected, ensuring normal speech post-procedure.

46 services14 patients

Injection of chemical for paralysis of facial and neck nerve muscles on both sides of face 64615

This procedure involves injecting a chemical into specific facial and neck muscles, causing temporary paralysis. This helps reduce muscle activity and can alleviate certain medical conditions. Both sides of the face are treated for a balanced result.

40 services12 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.

11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 89113 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

$131.25 typical visit price

range $57.07 – $173.24

Typical copayment $32.81 (range $14.26 – $43.31)

Most-billed visit code 99204

Established Patient

$100.60 typical visit price

range $18.27 – $140.96

Typical copayment $25.15 (range $4.56 – $35.24)

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.

97.84/100

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

Individually scored

Quality

97.71

Promoting Interoperability

Improvement Activities

Reported Quality Measures

Advance Care Plan

100%626 patients5/55-star benchmark: 100%

Dementia: Functional Status Assessment

100%21 patients

Documentation of Current Medications in the Medical Record

100%2,896 patients5/55-star benchmark: 100%

e-Prescribing

98%552 patients4/55-star benchmark: 100%

Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan

100%1,048 patients5/55-star benchmark: 100%

Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention

Patients combinedPopulations: 88% · 835 patients

Patients screened: 88% · 835 patients

100%68 patients5/55-star benchmark: 100%

Provide Patients Electronic Access to Their Health Information

96%506 patients4/55-star benchmark: 100%

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Other Providers at the Same Location NPPES

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

BESS CHANG PLLC

Psychiatry & Neurology (Neurology)

8530 W SUNSET RD STE 350
LAS VEGAS, NV 89113

Clark County (702) 851-1065

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 Bess Chang's NPI number?

The NPI number for Bess Chang is 1942228515. It was assigned to this individual provider in the NPPES registry on July 18, 2006.

Where is Bess Chang located?

Bess Chang practices at 8530 W Sunset Rd Ste 350, Las Vegas, NV 89113. The listed phone number is (702) 851-1065.

What is Bess Chang's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.

Is Bess Chang enrolled in Medicare?

Yes. Bess 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.

What insurance does Bess Chang accept?

Health plans from Ambetter from Arizona Complete Health list Bess Chang as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Bess Chang was last updated on January 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 months 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.