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DR. ALEX S CHAI M.D.
NPI 1316035819
Internal Medicine in Los Angeles, CA

Active since October 10, 2006PECOS EnrolledAccepts Medicare AssignmentCLIA 05D0541494 · Microscopy
75/100
CMS Quality Rating
1245 WILSHIRE BLVD, 914, LOS ANGELES, CA 90017(213) 484-8474(213) 484-9054 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Alex S Chai M.d. NPPES

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

DR. ALEX S CHAI M.D. (NPI 1316035819) is an individual internal medicine provider in Los Angeles, California, licensed in California (G31981) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS, holds a CLIA Microscopy certificate valid through August 31, 2026, and is a graduate of University Of Rochester School Of Medicine And Dentistry (1975).

NPPES Registry Identity

NPI1316035819
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. ALEX S CHAICredential: M.D.
Location Address1245 WILSHIRE BLVD, 914Los Angeles, CA 90017-4810
Mailing Address1245 Wilshire Blvd, 914Los Angeles, CA 90017-4810 · (213) 484-8474 · Fax (213) 484-9054
Phone(213) 484-8474
Fax(213) 484-9054
Sole ProprietorYes
Medical School CMSUniversity Of Rochester School Of Medicine And DentistryGraduated 1975
Enumeration DateOctober 10, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1316035819 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · G31981
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
1245 WILSHIRE BLVD, Los Angeles, CA 90017
Open in Google Maps ↗

Other Identifiers 3

Medicare UPINB51090CA
Medicaid00G319810CA
Medicare ID-Type UnspecifiedG31981CA

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. Alex S Chai M.d. 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 ID8729271382
PECOS Enrollment IDI20101015000432
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.

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate for Provider-Performed Microscopy Procedures (PPMP) 05D0541494

Alex S Chai MD · Los Angeles, CA
Active · expires Aug 31, 2026
CLIA Number05D0541494
Laboratory TypePhysician Office
Certificate Effective DateSeptember 1, 2024
Certificate Expiration DateAugust 31, 2026
Laboratory DirectorAlex S. Chai
Laboratory Phone(213) 484-8474
Laboratory LocationAlex S Chai MD1245 Wilshire Blvd Suite 914, Los Angeles, CA 90017
CLIA data matches this NPI record on: Address Phone
This certificate is issued to a laboratory in which a physician, midlevel practitioner or dentist performs no tests other than the microscopy procedures. This certificate permits the laboratory to also perform waived tests.

Areas of Expertise CMS Part B claims 18

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
625 services85 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.
507 services211 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.
379 services127 patients
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231
Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.
321 services35 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.
212 services212 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.
179 services170 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90017 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
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
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.

75/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Individually scored

Referred Medical Equipment & Supplies CMS DME claims 13

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
19 suppliers74 claims154 services$6.04 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
14 suppliers42 claims50 services$0.98 avg. paid by Medicare
Tracheostomy, inner cannula A4623
DME-Orthotic Devices · category DF000N
1 supplier11 claims375 services$4.93 avg. paid by Medicare
Oropharyngeal suction catheter, each A4628
DME-Other DME · category DE000N
1 supplier13 claims53 services$3.25 avg. paid by Medicare
Canister, disposable, used with suction pump, each A7000
DME-Other DME · category DE000N
1 supplier13 claims18 services$7.19 avg. paid by Medicare
Large volume nebulizer, disposable, unfilled, used with aerosol compressor A7007
DME-Other DME · category DE000N
1 supplier12 claims24 services$2.15 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 20

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

PETER LORBER, M.D., A MEDICAL CORPORATION
Psychiatry & Neurology (Neurology)
1245 WILSHIRE BLVD, SUITE 814
LOS ANGELES, CA 90017
Los Angeles County (213) 481-0592
HOMAYOUN TABANDEH M.D.
Ophthalmology
1245 WILSHIRE BLVD, 380
LOS ANGELES, CA 90017
Los Angeles County (213) 483-8810
DR. JAMES C.S. HAHN M.D.
Internal Medicine
1245 WILSHIRE BLVD, SUITE 790
LOS ANGELES, CA 90017
Los Angeles County (323) 735-1111
DR. ELLSWORTH RAYMOND GRANT M.D
Internal Medicine (Hematology & Oncology)
1245 WILSHIRE BLVD, SUITE 801
LOS ANGELES, CA 90017
Los Angeles County (213) 481-3948
DR. ALEXIS GEORG HOEN MD
Internal Medicine
1245 WILSHIRE BLVD, STE 307
LOS ANGELES, CA 90017
Los Angeles County (213) 977-1165
DOWNTOWN LOS ANGELES MEDICAL GROUP INC
Specialist
1245 WILSHIRE BLVD, SUITE 905
LOS ANGELES, CA 90017
Los Angeles County (213) 481-0584
DR. RONALD ALAN GREENO MD
Internal Medicine (Pulmonary Disease)
1245 WILSHIRE BLVD, SUITE 407
LOS ANGELES, CA 90017
Los Angeles County (213) 977-4979
RICHARD H. ROE M.D.
Ophthalmology
1245 WILSHIRE BLVD, 380
LOS ANGELES, CA 90017
Los Angeles County (213) 483-8810

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 Alex Chai's NPI number?

The NPI number for Alex Chai is 1316035819. It was assigned to this individual provider in the NPPES registry on October 10, 2006.

Where is Alex Chai located?

Alex Chai practices at 1245 Wilshire Blvd 914, Los Angeles, CA 90017. The listed phone number is (213) 484-8474.

What is Alex Chai's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Alex Chai enrolled in Medicare?

Yes. Alex Chai 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.

Does Alex Chai hold a CLIA laboratory certificate?

Yes. A Certificate for Provider-Performed Microscopy Procedures (PPMP) (number 05D0541494) is associated with this NPI, valid through August 31, 2026. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Alex Chai was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years 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.