WILLIAM LIU M.D.
NPI 1013022722
Internal Medicine - Rheumatology in Redondo Beach, CA
Quality Rating: 85.22 out of 100 score
NPI Status: Active since August 20, 2006
Contact Information
520 N PROSPECT AVE STE 103
REDONDO BEACH, CA
ZIP 90277
Phone: (310) 376-8816
Fax: (310) 374-2806
- Individual
- Male
- Years of Experience 47
- Internal Medicine
- Rheumatology
- Accepts Medicare Approved Payment
- PECOS Enrolled
About WILLIAM LIU
This page provides the complete NPI Profile along with additional information for William Liu, an internist established in Redondo Beach, California with a medical specialization in Internal Medicine, focusing in rheumatology and more than 47 years of experience. He graduated from Loyola University Of Chicago, Stritch School Of Medicine in 1979. The healthcare provider is registered in the NPI registry with number 1013022722 assigned on August 2006. The practitioner's primary taxonomy code is 207RR0500X with license number G51849 (CA). The provider is registered as an individual and his NPI record was last updated 4 years ago.
- NPI
- 1013022722
- Provider Name
- WILLIAM LIU M.D.
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 520 N PROSPECT AVE STE 103 REDONDO BEACH, CA 90277
- Location Phone
- (310) 376-8816
- Location Fax
- (310) 374-2806
- Mailing Address
- 520 N PROSPECT AVE STE 103 REDONDO BEACH, CA 90277
- Mailing Phone
- (310) 376-8816
- Mailing Fax
- (310) 374-2806
- Medical School Name
- LOYOLA UNIVERSITY OF CHICAGO, STRITCH SCHOOL OF MEDICINE
- Graduation Year
- 1979
- Is Sole Proprietor?
- No
- Enumeration Date
- 08-20-2006
- Last Update Date
- 04-16-2021
- Code Navigator
An internist like William Liu is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.
Location Map
Specialty - Primary Taxonomy
The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.
- Classification
Internal Medicine Rheumatology
- Taxonomy Code
- 207RR0500X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- G51849
- License State
- CA
- Taxonomy Description
- An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.
Insurance Plans Accepted
According to publicly available information the provider might be accepting the following health plans from these health insurance companies:
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
*Please verify directly with this provider to make sure your insurance plan is currently accepted.
Additional Identifiers
The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.
Identifier | Type / Code | Identifier State | Identifier Issuer |
---|---|---|---|
WG51849O | MEDICAID (05) | CA |
Medicare Participation & PECOS Enrollment Status
William Liu is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.
William Liu is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.
What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.
Is the provider registered in PECOS? Yes
PECOS PAC ID: 5890748230
What is the PECOS Associate Control ID?
A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.PECOS Enrollment ID: I20050225000503
What is the Provider Enrollment ID?
The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.Accepts Medicare Assignment? Yes
What does it mean "accepts medicare assignment"?
When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes
Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes
Eligible to Order or Refer a Home Health Agency (HHA): Yes
Eligible to Order or Refer Power Mobility Devices: Yes
Areas of Expertise
The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.
Aspiration and/or injection of fluid from large joint
Aspiration and/or injection of fluid from medium joint
Aspiration and/or injection of fluid from small joint
Established patient office or other outpatient visit, 20-29 minutes
Established patient office or other outpatient visit, 30-39 minutes
Established patient office or other outpatient visit, 40-54 minutes
Hyaluronan or derivative, hyalgan, supartz or visco-3, for intra-articular injection, per dose
Injection into tendon or ligament
Injection of trigger points, 3 or more muscles
Injection, triamcinolone acetonide, not otherwise specified, 10 mg
New patient office or other outpatient visit, 45-59 minutes
New patient office or other outpatient visit, 60-74 minutes
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.
This service was performed 300 times for 123 patientsThis 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.
This service was performed 19 times for 15 patientsThis 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.
This service was performed 81 times for 33 patientsThis 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.
This service was performed 47 times for 13 patientsThis 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.
This service was performed 353 times for 181 patientsThis 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.
This service was performed 184 times for 125 patientsHyaluronan or derivatives like Hyalgan, Supartz, or Visco-3, are used in intra-articular injections for joint pain relief. They help by improving joint lubrication, reducing inflammation, and promoting tissue healing. Each dose is administered directly into the joint space.
This service was performed 90 times for 12 patientsAn 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.
This service was performed 58 times for 36 patientsTrigger point injection therapy involves injecting medication into specific areas of your muscles, known as trigger points. These are areas that produce pain and discomfort. If you have three or more muscles affected, each will be treated individually.
This service was performed 169 times for 89 patientsTriamcinolone 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.
This service was performed 1,029 times for 168 patientsThis 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.
This service was performed 15 times for 15 patientsThis 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.
This service was performed 74 times for 74 patientsPhysician Visit Costs
The typical physician office visit costs for Medicare beneficiaries in this area are: $35.59 for a new patient copayment and $27.49 for an established patient copayment.
The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.
For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.
The prices below reflect the costs for new and established patients in the 90277 ZIP code area.
New Patients Visit Costs *
The most utilized procedure code for new patients office visits is 99204
- Average New Patient Price $142.39
- Minimum New Patient Price $62.96
- Maximum New Patient Price $187.6
- Average New Patient Copayment $35.59
- Minimum New Patient Copayment $15.74
- Maximum New Patient Copayment $46.9
Established Patients Visit Costs *
The most utilized procedure code for established patients office visits is 99214
- Average Established Patient Price $109.96
- Minimum Established Patient Price $20.84
- Maximum Established Patient Price $153.61
- Average Established Patient Copayment $27.49
- Minimum Established Patient Copayment $5.21
- Maximum Established Patient Copayment $38.4
* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.
Overall MIPS Quality Performance
The provider participated in CMS Quality Payment Program under the Merit-based Incentive Payment System (MIPS) and has an overall final score of 85.22, based on four performance areas: quality, improvement activities, promoting interoperability, and cost. The purpose of this information is to help people with Medicare make informed decisions and incentivize doctors and clinicians to maximize performance.
The Merit-based Incentive Payment System (MIPS) is a way providers could use to participate in CMS Quality Payment Program (QPP). The MIPS program affects clinician reimbursement for Part B covered professional services and also rewards them for improving the quality of patient care and outcomes.
-
Final Score: 85.22 out of 100
The MIPS program evaluates providers across multiple categories with a specific weight for each category resulting a in a MIPS final score that ranges from 0 to 100 points. The MIPS Final Score determines whether providers receive a negative, neutral or positive MIPS payment adjustment.
-
Quality Score: 80.2
The Quality category assesses providers performance on clinical practices and patient outcomes under the traditional MIPS program. The quality measures help identify the quality of healthcare processes, outcomes, and patient experiences. The Quality measure category compromises 40% providers final MPIS scores.
There are six collection types for MIPS quality measures: Electronic Clinical Quality Measures (eCQMs), MIPS Clinical Quality Measures (CQMs), Qualified Clinical Data Registry (QCDR) Measures, Medicare Part B claims measures, CMS Web Interface measures and The Consumer Assessment of Healthcare Providers and Systems (CAHPS) for MIPS Survey.
-
Promoting Interoperability Score: 100
The Interoperability category measures the providers ability to use technology to exchange and make use of healthcare information in a way that is less burdensome and improves outcomes. The Interoperability measure category compromises 25% providers final MPIS scores.
The MIPS Interoperability measure focuses on the use of certified electronic health record technology (CEHRT) to improve patient access health information, the exchange of information between clinicians and pharmacies and the systematic collection, analysis, and interpretation of healthcare data. -
Improvement Activities Score: 40
The Improvement Activities performance category evaluates the providers participation in clinical activities that support the improvement of clinical practice, care delivery, and outcomes. Providers have the option to choose 2 to 4 activities from an inventory of over 100 improvement activities. Providers typically choose the activities that best fit their needs. The improvement activities measure category compromises 15% providers final MPIS scores.
The Improvement measures aim to better patient engagement, patient safety and other areas of patient care. The Improvement Activities category compromises 15% of providers final MPIS scores. -
Cost Score: 62.55
The Cost performance category asses the amount and types of services provided and how clinicians coordinate care and seek improvement of health outcomes by ensuring patients receive the appropriate services.
Although providers don't determine the price of healthcare services they are important in delivering high-quality care at a reasonable cost. The Cost measures category compromises 20% of providers final MPIS scores. -
Cost Score: 62.55
The Cost performance category asses the amount and types of services provided and how clinicians coordinate care and seek improvement of health outcomes by ensuring patients receive the appropriate services.
Although providers don't determine the price of healthcare services they are important in delivering high-quality care at a reasonable cost. The Cost measures category compromises 20% of providers final MPIS scores.
Reviews for WILLIAM LIU M.D.
There are currently no reviews for this provider. Be the first person to share your experience with this provider by filling out our review form. Your insights are appreciated and will help others make informed decisions.
NPI Validation Check Digit Calculation
The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.
Start with the original NPI number, the last digit is the check digit and is not used in the calculation. | |||||||||
1 | 0 | 1 | 3 | 0 | 2 | 2 | 7 | 2 | 2 |
Step 1: Double the value of the alternate digits, beginning with the rightmost digit. | |||||||||
2 | 0 | 2 | 3 | 0 | 2 | 4 | 7 | 4 | |
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24. | |||||||||
2 + 0 + 2 + 3 + 0 + 2 + 4 + 7 + 4 + 24 = 48 | |||||||||
Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit. | |||||||||
50 - 48 = 2 | 2 |
The NPI number 1013022722 is valid because the calculated check digit 2 using the Luhn validation algorithm matches the last digit of the original NPI number.
Other Providers at the Same Location
The following 10 providers are registered at the same or nearby location.
NPI | Name / Type | Taxonomy | Address |
---|---|---|---|
1447365150 | GLEN WISHON M.D. Individual | Family Medicine | 520 N PROSPECT AVE STE 103 REDONDO BEACH, CA 90277 (310) 376-8816 |
1992810634 | GABRIELE ENGELHARDT M.D. Individual | Internal Medicine | 520 N PROSPECT AVE STE 103 REDONDO BEACH, CA 90277 (310) 376-8816 |
1821457250 | DR. ALISON KOLE DO Individual | Family Medicine | 520 N PROSPECT AVE STE 103 REDONDO BEACH, CA 90277 (310) 376-8816 |
1295754281 | WEIP CHEN M.D. Individual | Internal Medicine | 520 N PROSPECT AVE STE 103 REDONDO BEACH, CA 90277 (310) 376-8816 |
1992810642 | LUBNA NAQI M.D. Individual | Internal Medicine (Endocrinology, Diabetes & Metabolism) | 520 N PROSPECT AVE STE 103 REDONDO BEACH, CA 90277 (310) 376-8816 |
1790890408 | JULIE DELILLY M.D Individual | Internal Medicine | 520 N PROSPECT AVE STE 103 REDONDO BEACH, CA 90277 (310) 376-8816 |
1508971243 | GRACE HWANG M.D. Individual | Family Medicine | 520 N PROSPECT AVE STE 103 REDONDO BEACH, CA 90277 (310) 376-8816 |
1922528942 | JOSHUA CHOU Individual | Family Medicine | 520 N PROSPECT AVE STE 103 REDONDO BEACH, CA 90277 (310) 376-8816 |
1215378245 | DR. SEEMA MISSER JOHNSTON M.D. Individual | Internal Medicine | 520 N PROSPECT AVE STE 103 REDONDO BEACH, CA 90277 (310) 376-8816 |
1790716397 | JENNIFER FAITH MARZAN PA-C Individual | Physician Assistant (Medical) | 520 N PROSPECT AVE STE 103 REDONDO BEACH, CA 90277 (310) 376-8816 |
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1013022722, enumerated in the NPI registry as an "individual" on August 20, 2006
The provider is located at 520 N Prospect Ave Ste 103 Redondo Beach, Ca 90277 and the phone number is (310) 376-8816
The provider's speciality is Internal Medicine with taxonomy code 207RR0500X with a focus in Rheumatology
The provider has more than 47 years of experience. He graduated from Loyola University Of Chicago, Stritch School Of Medicine in 1979.
The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to make sure your health plan is currently accepted.
Yes, as of June 20, 2025 the provider is registered in PECOS and is eligible to order health care services or supplies for Medicare patients. If you are a beneficiary the provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.
The provider has an overall high rating in the following quality measures: quality clinical practices and patient outcomes and experiences , uses technology to exchange and make use of healthcare information.
Medicare beneficiaries should expect a typical cost of $142.39 with an average copayment of $35.59 for new patient appointments. Established patients should expect a typical charge of $109.96 and an average copayment of 27.49. Please review your insurance plan or contact the provider directly to determine your specific costs.
The most common procedures or services performed by this practitioner are: Aspiration and/or injection of fluid from large joint, Aspiration and/or injection of fluid from medium joint, Aspiration and/or injection of fluid from small joint, Established patient office or other outpatient visit, 20-29 minutes, Established patient office or other outpatient visit, 30-39 minutes, Established patient office or other outpatient visit, 40-54 minutes, Hyaluronan or derivative, hyalgan, supartz or visco-3, for intra-articular injection, per dose, Injection into tendon or ligament, Injection of trigger points, 3 or more muscles, Injection, triamcinolone acetonide, not otherwise specified, 10 mg, New patient office or other outpatient visit, 45-59 minutes and New patient office or other outpatient visit, 60-74 minutes.
This NPI record was last updated on August 20, 2006. To officially update your NPI information contact the National Plan and Provider Enumeration System (NPPES) at 1-800-465-3203 (NPI Toll-Free) or by email at [email protected].
NPI Profile data is regularly updated with the latest NPI registry information, if you would like to update or remove your NPI Profile in this website please contact us.