DR. REX TONG HYUN CHUNG M.D. NPI 1003021882

Surgery (Surgical Critical Care) in Loma Linda, CA

NPI 1003021882 Individual Male Years of Experience 18 Surgery Surgical Critical Care PECOS Enrolled Accepts Medicare Approved Payment MIPS Quality Score 89.1

NPI Profile for DR. REX TONG HYUN CHUNG M.D.

Rex Chung is a provider established in Loma Linda, California and his medical specialization is surgery (surgical critical care) with more than 18 years of experience. He graduated from Icahn School Of Medicine At Mount Sinai in 2005. The NPI number of Rex Chung is 1003021882 and was assigned on May 2007. The practitioner's primary taxonomy code is 2086S0102X with license number A99992 (CA). The provider is registered as an individual and his NPI record was last updated 6 years ago.

Rex Chung 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.

Rex Chung is registered with Medicare and accepts claims assignment, this means the provider accepts Medicare's approved amount for the cost of rendered services as full payment. Participating providers may not charge Medicare beneficiaries more than Medicare's approved amount for their services. Medicare beneficiaries still have to pay a coinsurance or copayment amount for a visit or service. According to Medicare claims data he has hospital affiliations with Cedars-sinai Medical Center.

The provider participated in Medicare's Quality Payment Program under the Merit-based Incentive Payment System (MIPS) and has an overall final score of 89.1, 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.

NPI

1003021882

Provider NameDR. REX TONG HYUN CHUNG M.D.
Provider Location Address11175 CAMPUS ST RM 21008 LOMA LINDA, CA 92350
Provider Mailing Address25246 BARTON RD APT. #12 LOMA LINDA, CA 92354
GenderMale
NPI Entity TypeIndividual
Medical School NameICAHN SCHOOL OF MEDICINE AT MOUNT SINAI
Graduation Year2005
Is Sole Proprietor?Yes
Is Organization Subpart?N/A
Enumeration Date05-14-2007
Last Update Date03-23-2016


Primary Taxonomy

Taxonomy Code2086S0102X
ClassificationSurgery
TypeAllopathic & Osteopathic Physicians
SpecializationSurgical Critical Care
License No.A99992
License StateCA
Taxonomy DescriptionA surgeon with expertise in the management of the critically ill and postoperative patient, particularly the trauma victim, who specializes in critical care medicine diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.

Business Address

DR. REX TONG HYUN CHUNG M.D.
11175 CAMPUS ST
RM 21008
LOMA LINDA, CA
ZIP 92350
Phone: (909) 558-8131

Get Directions


Mailing Address

DR. REX TONG HYUN CHUNG M.D.
25246 BARTON RD
APT. #12
LOMA LINDA, CA
ZIP 92354
Phone: (909) 210-8222



PECOS Enrollment and Medicare Participation

What is PECOS?
PECOS is the Medicare Provider, Enrollment, Chain and Ownership System. PECOS is Medicare's enrollment and revalidation system and it is the primary source of information about verified Medicare professionals. A NPI number is necessary to register in PECOS. Providers must enroll in PECOS to avoid denied claims.

Registered in PECOS? Yes
PECOS PAC ID6709054810
PECOS Enrollment IDI20110715000342
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 order / refer Part B Clinical Laboratory and ImagingYes
Eligible order / refer Durable Medical EquipmentYes
Eligible order / refer Home Health Agency (HHA)Yes
Eligible order / refer Power Mobility DevicesYes

Overall MIPS Quality Performance

The Merit-based Incentive Payment System (MIPS) is a way providers could use to participate in Medicare's 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.

MIPS Measure Score Weight Score
Quality 40% 100
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 (PI) 25% 64
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 15% 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 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 20% 62.7
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.
MIPS Final Score - 89.1
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.

Clinician Utilization

The following Healthcare Common Procedure Coding System (HCPCS) codes were publicly reported as the top services rendered by this provider under the Medicare program for the year 2017. The reported codes are based on the top 5 codes for each available Medicare specialty, excluding evaluation and management codes.

  • 15Insertion of central venous catheter for infusion, patient 5 years or older (HCPCS:36556)

Hospital Affiliations

Medicare hospital affiliation is identified through self-reporting data, inpatient, outpatient, physician and ancillary service claims linked by the Medicare claims NPI number and place of service code. Additionally, to further determine provider hospital affiliation the clinician must have provided services to at least three patients on three different dates in the last 12 months. Rex Chung is affiliated with the following medical facilities:

Hospital Name Address Phone Hospital Type CMS Certification Number (CCN) Overall Rating
CEDARS-SINAI MEDICAL CENTER8700 BEVERLY BLVD
LOS ANGELES, CA 90048
(310) 423-5000Acute Care Hospitals50625

Secondary Taxonomies


The secondary taxonomy codes define the provider type, classification, and specialization. For individual NPIs the license data is associated to each taxonomy code.

No. Taxonomy Code Type Classification Specialization License No. State Primary
1208600000XAllopathic & Osteopathic PhysiciansSurgeryA99992CANo

Taxonomy Description: a general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

NPI Validation Check Digit Calculation


The following table explains step by step the 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.
1003021882
Step 1: Double the value of the alternate digits, beginning with the rightmost digit.
2003022816
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24.
2 + 0 + 0 + 3 + 0 + 2 + 2 + 8 + 1 + 6 + 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 = 22

The NPI number 1003021882 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 20 providers are registered at the same or nearby location.

NPI Name / Type Taxonomy Address
1912103797 KAY CHEA MD
Individual
Pediatrics11175 CAMPUS ST COLEMAN PAVILLION ROOM A1121
LOMA LINDA, CA 92350
(909) 558-4000
1982896346 WOLFF M. KIRSCH M.D.
Individual
Surgery11175 CAMPUS ST SUITE 11113 COLEMAN PAVILION
LOMA LINDA, CA 92350
(909) 558-7070
1003094749DR. RYAN TIMOTHY MOORE M.D.
Individual
Orthopaedic Surgery11175 CAMPUS ST RM 21005
LOMA LINDA, CA 92350
(909) 558-4000
1073786646DR. KRISTEN ANNE HUGHES M.D.
Individual
Pediatrics11175 CAMPUS ST SUITE 11120
LOMA LINDA, CA 92350
(909) 558-4000
1336313139DR. KATHLEEN BOYD LIMA D.O.
Individual
Pediatrics11175 CAMPUS ST CP-A1111
LOMA LINDA, CA 92350
(909) 558-4174
1194051979DR. NIDIA R VYHMEISTER MD
Individual
Pediatrics (Neonatal-Perinatal Medicine)11175 CAMPUS ST SUITE 11121
LOMA LINDA, CA 92350
(909) 558-7448
1962733162 MARIA DUROSEAU M.D
Individual
Pediatrics11175 CAMPUS ST CP-A1111
LOMA LINDA, CA 92350
(909) 558-4174
1982927729 JUNEANNE GOLD M.D.
Individual
Medical Genetics (Clinical Genetics (M.D.))11175 CAMPUS ST SUITE 11121
LOMA LINDA, CA 92350
(909) 558-7448
1245518075LOMA LINDA UNIVERSITY HEALTH CARE INC
Organization
Surgery11175 CAMPUS ST CP AA121
LOMA LINDA, CA 92350
(909) 558-3111
1821231101 LINH AI TIEU D.O.
Individual
Pediatrics11175 CAMPUS ST CP-A1121
LOMA LINDA, CA 92350
(909) 558-8142
1770799942 SUM CHRISTINE CHEUNG MD
Individual
Obstetrics & Gynecology11175 CAMPUS ST COLEMAN PAVILION, SUITE 11105
LOMA LINDA, CA 92350
(909) 651-5534
1821181553 HUITZILIN MAURICIO OLMECAH M.D.
Individual
Neurological Surgery11175 CAMPUS ST DEPARTMENT OF NEUROLOGY, COLEMAN PAVILION - RM. 11108
LOMA LINDA, CA 92350
(909) 558-4907
1700298437LOMA LINDA UNIVERSITY MEDICAL CENTER
Organization
General Acute Care Hospital (Critical Access)11175 CAMPUS ST
LOMA LINDA, CA 92350
(909) 558-8292
1780974212 SHAUN PARK M.D.
Individual
Pediatrics11175 CAMPUS ST CP-A1121
LOMA LINDA, CA 92350
(909) 558-8142
1659662583DR. GORDON TAN M.D.
Individual
Pediatrics11175 CAMPUS ST COLEMAN PAVILION A1111
LOMA LINDA, CA 92350
(909) 558-4174
1750606521 GRACE HYE-EUN NAM M.D.
Individual
Pediatrics11175 CAMPUS ST
LOMA LINDA, CA 92350
(909) 558-8142
1386858272 BEVERLY KAY HUDSON W.H.N.P.
Individual
Nurse Practitioner (Women's Health)11175 CAMPUS ST #11120
LOMA LINDA, CA 92350
(909) 558-2806
1992978423 JAMES GUTH MD
Individual
Psychiatry & Neurology (Neurology)11175 CAMPUS ST CP-11108
LOMA LINDA, CA 92350
(909) 558-4000
1588834758 QUAN ZHAO MD
Individual
Pediatrics (Pediatric Hematology-Oncology)11175 CAMPUS ST
LOMA LINDA, CA 92350
(909) 558-8626
1528201266 PHILIP HAN-YUAN TSENG M.D.
Individual
Psychiatry & Neurology (Clinical Neurophysiology)11175 CAMPUS ST CP-11108
LOMA LINDA, CA 92350
(909) 558-4907

NPI Footnotes

What is the National Provider Indentifier (NPI)?
The NPI is 10-position all-numeric identification number assigned by the NPPES to uniquely identify a health care provider.

Provider Location Address
The location address of the provider being identified. For providers with more than one physical location, this is the primary location. This address cannot include a Post Office box.

Provider Mailing Address
The mailing address of the provider being identified. This address may contain the same information as the provider location address.

Entity Type Code
Dr. Rex Tong Hyun Chung M.d. is registered as an entity type code: 1. The entity type code describes the type of health care provider that is being assigned an NPI. The entity type codes are:

  • 1 = Person: individual human being who furnishes health care.
  • 2 = Non-person: entity other than an individual human being that furnishes health care (Examples: hospital, SNF, hospital subunit, pharmacy, or HMO)

What is a Subpart?
Subparts are the components and separate physical locations of organization health care providers. Subpart examples include:
Hospital components include outpatient departments, surgical centers, psychiatric units, and laboratories. These components are often separately licensed or certified by States and may exist at physical locations other than that of the hospital of which they are a component.

Provider Other Organization Name
The other organization name is the alternative last name by which the provider is or has been known (if an individual) or other name by which the organization provider is or has been known. The code identifying the type of other name. The provider other organization name codes are:
1 = former name;
2 = professional name;
3 = doing business as (d/b/ a) name;
4 = former legal business name; :
5 = other.

Provider Enumeration Date
The date the provider was assigned a unique identifier (assigned an NPI).

Last Update Date
The date that a NPI record was last updated or changed.

Primary Taxonomy Code
The primary taxonomy code defines the provider type, classification, and specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Authorized Official Name
The name of the person authorized to submit the NPI application or to officially change data for a health care provider.