DR. JOANNE HELEN WANG MD
NPI 1255727285
Orthopaedic Surgery - Hand Surgery in Simi Valley, CA

Q: What is Joanne Wang's NPI number?

The NPI number for Joanne Wang is 1255727285. It was assigned to this individual provider in the NPPES registry on April 7, 2015.

Q: What is Joanne Wang's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery, specializing in Hand Surgery, with taxonomy code 207XS0106X.

Q: When was this NPI record last updated?

The NPPES record for Joanne Wang was last updated on January 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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 April 07, 2015PECOS EnrolledAccepts Medicare Assignment

75/100

CMS Quality Rating

2525 ERRINGER RD, SIMI VALLEY, CA 93065(805) 527-1404(805) 527-5246 Get Directions Write a Review

NPPES record last updated: January 20, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jan 20, 2026, Jan 9, 2023, Jan 6, 2022 and 3 more (6 updates tracked since 2021).

On this page

About Dr. Joanne Helen Wang Md NPPES

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

DR. JOANNE HELEN WANG MD (NPI 1255727285) is an individual hand surgery provider in Simi Valley, California, licensed in California (A174739) and active in the NPI registry since April 2015. She is enrolled in Medicare PECOS, maintains a secondary practice location in Thousand Oaks, and is a graduate of Warren Alpert Medical School Of Brown University (2015).

NPPES Registry Identity

NPI1255727285

Entity TypeIndividualFemale

Primary Taxonomy207XS0106X

Provider Legal NameDR. JOANNE HELEN WANGCredential: MD

Location Address2525 ERRINGER RDSimi Valley, CA 93065-2352

Mailing Address1203 Flynn Rd Unit 160Camarillo, CA 93012-6203 · (805) 804-4168 · Fax (805) 830-1177

Phone(805) 527-1404

Fax(805) 527-5246

Sole ProprietorNo

Medical School CMSWarren Alpert Medical School Of Brown UniversityGraduated 2015

Enumeration DateApril 7, 2015

Last NPPES UpdateJanuary 20, 20266 updates tracked since enumeration

NPPES CertifiedJanuary 20, 2026

✔ NPI 1255727285 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOrthopaedic Surgery · Hand SurgeryAllopathic & Osteopathic Physicians

Taxonomy Code207XS0106X

License✔ Licensed in CA · A174739

Definition

An orthopaedic surgeon trained in the investigation, preservation and restoration by medical, surgical and rehabilitative means of all structures of the upper extremity directly affecting the form and function of the hand and wrist.

2525 ERRINGER RD, Simi Valley, CA 93065

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Secondary Practice Location 1

Location 1137 E Thousand Oaks BlvdThousand Oaks, CA 91360-5707 · Phone (805) 379-4574 · Fax (805) 379-4324

Other Identifiers 1

OtherA174739CA · State License

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Joanne Helen Wang Md 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 ID8022417070

PECOS Enrollment IDI20220104000014

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.

Medicare Billing Reassignments

Medicare enrollment records show Joanne Wang reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Ventura Orthopedics Medical Group, Inc.

Same address

Specialist

2525 ERRINGER RD
Simi Valley, CA 93065

Reassigned Medicare billing, California enrollment
73 clinicians in this Medicare group

NPI 1629531454 (805) 527-1404

Sports Medicine And Orthopaedic Institute

85 mi

Adult Reconstructive Orthopaedic Surgery

12490 BUSINESS CENTER DR STE 100
Victorville, CA 92395

Reassigned Medicare billing, California enrollment
19 clinicians in this Medicare group

NPI 1669993218 (760) 522-8585

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 22

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, triamcinolone acetonide, not otherwise specified, 10 mg J3301

Triamcinolone acetonide is a medication used to reduce inflammation in the body. It's given as a 10 mg injection for conditions like allergies, arthritis, or skin problems. The injection helps to decrease swelling, redness, and itching.

1,306 services230 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.

323 services231 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.

266 services200 patients

X-ray of hand, minimum of 3 views 73130

An X-ray of the hand, minimum of 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the bones in your hand from different angles. This helps in diagnosing fractures, infections, arthritis, or other abnormalities. It's quick and painless.

257 services185 patients

X-ray of wrist, minimum of 3 views 73110

An X-ray of the wrist, minimum of 3 views, is a diagnostic procedure that uses radiation to create images of your wrist from different angles. This helps detect fractures, infections, or other abnormalities for accurate diagnosis and treatment planning.

221 services113 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.

154 services154 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

153 services153 patients

X-ray of shoulder, minimum of 2 views 73030

An X-ray of the shoulder, with a minimum of 2 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of your shoulder bones. This helps in diagnosing conditions like fractures, arthritis, or other abnormalities. The procedure is quick and painless.

131 services84 patients

Injection into tendon or ligament 20550

An injection into a tendon or ligament involves placing medication directly into these areas to help reduce inflammation and pain. It's often used for conditions like arthritis or tendonitis. The procedure is quick and usually involves a local anesthetic.

115 services92 patients

Aspiration and/or injection of fluid from small joint 20600

This procedure involves inserting a thin needle into a small joint to remove (aspirate) or inject fluid. It can help diagnose conditions, relieve discomfort, or administer medication directly into the joint. It's generally safe with minimal discomfort.

88 services68 patients

X-ray of elbow, minimum of 3 views 73080

An elbow X-ray with a minimum of 3 views is a non-invasive imaging test. It helps visualize the bones of the elbow from different angles. This aids in diagnosing conditions like fractures or arthritis. The procedure is quick, painless, and usually takes around 15 minutes.

81 services43 patients

Aspiration and/or injection of fluid from large joint 20610

This procedure involves using a needle to remove (aspiration) or introduce (injection) fluid into a large joint like the knee or hip. It can help diagnose conditions, relieve discomfort, or deliver medication directly to the joint.

77 services53 patients

X-ray of finger, minimum of 2 views 73140

An X-ray of the finger involves capturing images of your finger from at least two different angles. This non-invasive procedure helps in visualizing the bones and joints, aiding in the diagnosis of fractures, infections, or other abnormalities. Minimal discomfort may be experienced.

55 services48 patients

Injection of carpal tunnel 20526

An injection for carpal tunnel is a treatment to reduce inflammation and swelling in your wrist, which can alleviate pain and numbness. The doctor injects a steroid medication into your wrist area to provide relief.

33 services29 patients

Aspiration and/or injection of fluid from medium joint 20605

This procedure involves a needle being inserted into a medium-sized joint, such as a knee or shoulder, to remove (aspirate) excess fluid. Sometimes, medication may also be injected into the joint to reduce inflammation and pain.

29 services23 patients

Application of elbow to finger cast 29075

An elbow to finger cast is applied to immobilize the arm from the elbow down to the fingers. This aids in healing fractures or severe sprains. The cast, made from plaster or fiberglass, wraps around the arm, providing support and limiting movement to promote recovery.

27 services25 patients

Cast supplies, short arm cast, adult (11 years +), fiberglass Q4010

A short arm cast, made from fiberglass, is often used for fractures or injuries to the wrist or forearm in adults and children over 11. It's lightweight, durable, and can be molded to fit your arm comfortably. This cast allows for limited movement while ensuring proper healing.

27 services25 patients

X-ray of hip, 2-3 views 73502

An X-ray of the hip with 2-3 views is a non-invasive imaging test. It uses a small amount of radiation to produce pictures of the hip joint. These images help in diagnosing conditions like fractures, arthritis, or other abnormalities. The process is quick and painless.

23 services11 patients

Mri scan of arm joint without contrast 73221

An MRI scan of the arm joint is a non-invasive imaging procedure that uses magnetic fields and radio waves to create detailed images of the structures within your arm joint. No contrast dye is used in this process. It helps to diagnose or monitor conditions like arthritis, injuries, or infections.

22 services20 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

21 services21 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.

15 services15 patients

Slings A4565

A sling is a supportive device often used to immobilize and protect an injured arm. It helps reduce pain and swelling by keeping your arm still and elevated. It's commonly used for conditions like fractures, dislocations, or after certain surgeries. It's important to wear it as instructed for optimal healing.

11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 93065 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

$95.28 typical visit price

range $62.32 – $185.36

Typical copayment $23.82 (range $15.58 – $46.34)

Most-billed visit code 99203

Established Patient

$77.11 typical visit price

range $20.68 – $151.85

Typical copayment $19.27 (range $5.17 – $37.96)

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.

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.

75/100

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

Scored as part of a group practice

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.

Wrist hand finger orthosis, without joint(s), prefabricated, off-the-shelf, any type L3809

DME-Orthotic Devices · category DF000N

1 supplier20 claims20 services$185.78 avg. paid by Medicare

Wrist hand orthosis, wrist extension control cock-up, non molded, prefabricated, off-the-shelf L3908

DME-Orthotic Devices · category DF000N

1 supplier51 claims54 services$60.82 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 14

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

MOLLY BRECKLEY PT

Physical Therapist

2525 ERRINGER RD
SIMI VALLEY, CA 93065

Ventura County (805) 526-2311

PAYAM KASHFIAN, M.D., INC.

Radiology (Diagnostic Radiology)

2525 ERRINGER RD, SUITE A
SIMI VALLEY, CA 93065

Ventura County (805) 520-2663

DORIS A MESCH OTR/L

Occupational Therapist (Hand)

2525 ERRINGER RD
SIMI VALLEY, CA 93065

Ventura County (805) 524-1404

LAKSHMANAN SIVASUNDARAM

Orthopaedic Surgery (Sports Medicine)

2525 ERRINGER RD
SIMI VALLEY, CA 93065

Ventura County (805) 527-1404

ZADE NEIL BATARSEH PA-C

Physician Assistant

2525 ERRINGER RD
SIMI VALLEY, CA 93065

Ventura County (805) 527-1404

DR. GREGG PHILIP HARTMAN M.D.

Orthopaedic Surgery (Sports Medicine)

2525 ERRINGER RD
SIMI VALLEY, CA 93065

Ventura County (805) 527-1404

MITCHELL WAYNE MOSDELL DPT

Physical Therapist

2525 ERRINGER RD
SIMI VALLEY, CA 93065

Ventura County (805) 303-2867

OLUMUYIWA IDOWU

Orthopaedic Surgery (Orthopaedic Surgery of the Spine)

2525 ERRINGER RD
SIMI VALLEY, CA 93065

Ventura County (805) 527-1404

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 Joanne Wang's NPI number?

The NPI number for Joanne Wang is 1255727285. It was assigned to this individual provider in the NPPES registry on April 7, 2015.

Where is Joanne Wang located?

Joanne Wang practices at 2525 Erringer Rd, Simi Valley, CA 93065. The listed phone number is (805) 527-1404.

What is Joanne Wang's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery, specializing in Hand Surgery, with taxonomy code 207XS0106X.

Is Joanne Wang enrolled in Medicare?

Yes. Joanne Wang 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.

Which organizations bill Medicare for Joanne Wang's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Joanne Wang reassigns Medicare benefits to 2 organizations: Ventura Orthopedics Medical Group, Inc. (Simi Valley, CA) and Sports Medicine And Orthopaedic Institute (Victorville, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Joanne Wang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Joanne Wang was last updated on January 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.