DR. LOUIS CHENG-HONG TSAI M.D.
NPI 1841435468
Radiology - Diagnostic Radiology in Brooklyn, NY

Q: What is Louis Tsai's NPI number?

The NPI number for Louis Tsai is 1841435468. It was assigned to this individual provider in the NPPES registry on December 10, 2008.

Q: What is Louis Tsai's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Q: When was this NPI record last updated?

The NPPES record for Louis Tsai was last updated on January 3, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.

Active since December 10, 2008PECOS EnrolledAccepts Medicare Assignment

90.38/100

CMS Quality Rating

506 6TH ST, BROOKLYN, NY 11215(718) 780-5950 Get Directions Write a Review

NPPES record last updated: January 3, 2024. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Jan 3, 2024, Mar 28, 2023, Dec 7, 2022 (3 updates tracked since 2022).

On this page

About Dr. Louis Cheng-hong Tsai M.d. NPPES

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

DR. LOUIS CHENG-HONG TSAI M.D. (NPI 1841435468) is an individual diagnostic radiology provider in Brooklyn, New York, licensed in New York (238392) and active in the NPI registry since December 2008. He is enrolled in Medicare PECOS, is affiliated with North Shore University Hospital, and is a graduate of Tufts University School Of Medicine (2004).

NPPES Registry Identity

NPI1841435468

Entity TypeIndividualMale

Primary Taxonomy2085R0202X

Provider Legal NameDR. LOUIS CHENG-HONG TSAICredential: M.D.

Location Address506 6TH STBrooklyn, NY 11215-3609

Mailing AddressPo Box 1036New York, NY 10163-1036

Phone(718) 780-5950

Sole ProprietorNo

Medical School CMSTufts University School Of MedicineGraduated 2004

Enumeration DateDecember 10, 2008

Last NPPES UpdateJanuary 3, 20243 updates tracked since enumeration

NPPES CertifiedJanuary 3, 2024

✔ NPI 1841435468 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians

Taxonomy Code2085R0202X

License✔ Licensed in NY · 238392

Definition

A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.

Also ListedRadiology · Body ImagingTaxonomy 2085B0100X · License 238392 (NY)

506 6TH ST, Brooklyn, NY 11215

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Other Identifiers 1

Medicaid03104592NY

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas, Blue Cross Blue Shield of Wyoming, HMO Louisiana.Insurance ›

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. Louis Cheng-hong Tsai 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 ID5193877710

PECOS Enrollment IDI20090713000446

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 Louis Tsai reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Kings Physician Services, PC

Same address

Emergency Medicine

506 6TH STREET, DEPARTMENT OF EMERGENCY MEDICINE
Brooklyn, NY 11215

Reassigned Medicare billing, New York enrollment
1,029 clinicians in this Medicare group

NPI 1326698879 (718) 780-3424

Montefiore Medical Center

8.9 mi

Family Medicine

2633 BROADWAY
New York, NY 10025

Reassigned Medicare billing, New York enrollment
5,251 clinicians in this Medicare group

NPI 1760288278 (888) 663-6331

North Shore - Lij Medical PC

15 mi

Internal Medicine

270-05 76TH AVE
New Hyde Park, NY 11040

Reassigned Medicare billing, New York enrollment
9,353 clinicians in this Medicare group

NPI 1790043479 (516) 465-8089

Southside Faculty Medical Affiliates University Faculty Practice Corp

26 mi

Body Imaging

1220 HICKSVILLE RD
Seaford, NY 11783

Reassigned Medicare billing, New York enrollment
391 clinicians in this Medicare group

NPI 1033791058 (516) 266-3456

New York University

1,034 mi

Cardiovascular Disease

3301 QUANTUM BLVD
Boynton Beach, FL 33426

Reassigned Medicare billing, New York enrollment
2,450 clinicians in this Medicare group

NPI 1285826438 (877) 648-2964

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 38

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.

Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml Q9967

Low osmolar contrast material with 300-399 mg/ml iodine concentration is a diagnostic tool used in imaging procedures. It helps to enhance the visibility of specific areas in the body, aiding in accurate diagnosis. It's safe and generally well-tolerated by patients.

7,550 services75 patients

Injection, gadobutrol, 0.1 ml A9585

Gadobutrol is a contrast agent used during MRI scans to help provide clearer images. It's injected into your vein before the scan. This helps doctors to see certain areas more clearly for better diagnosis. It's generally safe with few side effects.

3,673 services44 patients

Ct scan of abdomen and pelvis with contrast 74177

A CT scan of the abdomen and pelvis with contrast is an imaging procedure. A special dye, called contrast, is used to make certain areas more visible. This can help identify issues such as infections, tumors, or other abnormalities. The procedure is painless and usually takes about 30 minutes.

248 services246 patients

Ct scan of abdomen and pelvis with contrast 74177

224 services223 patients

Complete ultrasound scan of abdomen 76700

A complete ultrasound scan of the abdomen is a non-invasive imaging procedure. It uses sound waves to produce images of the organs in your abdomen, such as the liver, gallbladder, spleen, pancreas, and kidneys. It helps in diagnosing, monitoring, and planning treatments.

212 services212 patients

Mri scan of abdomen before and after contrast 74183

An MRI scan of the abdomen before and after contrast provides detailed images of your abdominal organs. Initially, images are taken without a contrast agent. Then, a safe dye is administered, usually via an IV, to highlight certain areas, giving a clearer picture to help diagnose various conditions.

187 services187 patients

Ct scan of abdomen and pelvis without contrast 74176

A CT scan of the abdomen and pelvis is a non-invasive medical test. It uses special X-ray equipment to create detailed images of your abdominal and pelvic areas. This helps doctors examine organs, tissues, and vessels. No contrast dye is used in this procedure.

140 services140 patients

Ct scan of abdomen and pelvis without contrast 74176

124 services124 patients

Ultrasound scan of uterus, ovaries, tubes, cervix and pelvic area through vagina 76830

An ultrasound scan of the lower abdominal region is a safe, non-invasive procedure that uses sound waves to create images of internal structures. This helps in checking the health of reproductive organs and detecting any abnormalities. The scan is done via a small probe inserted into the body.

120 services119 patients

Complete ultrasound scan behind abdominal cavity 76770

A complete ultrasound scan behind the abdominal cavity is a non-invasive imaging procedure. It uses sound waves to create pictures of the structures and organs located at the back of your abdomen. It helps in diagnosing health conditions and monitoring ongoing treatments.

118 services116 patients

Complete ultrasound scan of pelvis 76856

A complete ultrasound scan of the pelvis is a safe, non-invasive imaging procedure. It uses sound waves to create pictures of your lower abdomen area, helping doctors to evaluate and diagnose any potential issues. It's painless and usually takes about 30 minutes.

111 services111 patients

Complete ultrasound scan behind abdominal cavity 76770

105 services105 patients

Ct scan of abdomen and pelvis before and after contrast 74178

A CT scan of your abdomen and pelvis with and without contrast helps visualize your internal organs better. Contrast is a special dye that improves the clarity of the images. It's taken orally or injected into your veins before the scan. The process is painless and quick.

97 services97 patients

Mri scan of abdomen before and after contrast 74183

91 services91 patients

Limited ultrasound scan behind abdominal cavity 76775

A limited ultrasound scan behind the abdominal cavity is a non-invasive imaging method that helps visualize structures in the back of your abdomen. This procedure uses sound waves to create pictures of these areas, assisting in diagnosing certain conditions.

68 services68 patients

Complete ultrasound scan of abdomen 76700

67 services67 patients

Limited ultrasound scan of abdomen 76705

A limited ultrasound scan of the abdomen is a non-invasive imaging test. It uses sound waves to produce images of the abdominal organs such as the liver, gallbladder, spleen, pancreas, and kidneys. This helps to identify any abnormalities or issues.

56 services56 patients

Limited ultrasound scan of abdomen 76705

53 services53 patients

Ultrasound scan of head and neck soft tissue 76536

An ultrasound scan of the head and neck soft tissue is a non-invasive procedure that uses sound waves to create images of the soft tissues in these areas. It helps identify any abnormalities or issues, such as tumors, cysts, or infections. It's painless and doesn't involve radiation.

48 services48 patients

Ct scan of abdomen and pelvis before and after contrast 74178

47 services47 patients

Limited ultrasound scan behind abdominal cavity 76775

42 services42 patients

Mri scan of pelvis before and after contrast 72197

An MRI scan of the pelvis before and after contrast is a non-invasive imaging technique. It uses magnetic fields and radio waves to capture detailed images of your lower abdomen. Contrast dye, safe for the body, improves image clarity. This helps detect abnormalities more accurately.

40 services40 patients

Ct scan of chest with contrast 71260

A CT scan of the chest with contrast is an imaging procedure. A special dye (contrast) is used to highlight specific areas in your body, providing clearer pictures of your chest. This helps in diagnosing conditions related to your lungs, heart, and other chest structures.

29 services29 patients

Ultrasound scan of uterus, ovaries, tubes, cervix and pelvic area through vagina 76830

23 services23 patients

Complete ultrasound scan of pelvis 76856

23 services23 patients

Mri scan of pelvis before and after contrast 72197

22 services22 patients

Ct scan of abdomen with contrast 74160

A CT scan of the abdomen with contrast is a diagnostic procedure. A special dye (contrast) is introduced into your body to highlight certain areas in the images. The CT scanner uses X-rays to create detailed pictures of your abdomen, helping doctors diagnose conditions or monitor treatment.

20 services20 patients

Ct scan of chest without contrast 71250

A CT scan of the chest without contrast is a non-invasive imaging procedure. It uses special X-ray equipment to produce detailed images of your chest area, including your lungs and heart. It can help diagnose conditions such as lung diseases or heart disorders. It doesn't involve any dyes or contrast agents.

19 services18 patients

3d radiographic procedure 76376

A 3D radiographic procedure is a non-invasive imaging test that helps doctors visualize the internal structures of your body in three dimensions. This advanced technology provides detailed images, aiding in accurate diagnosis and treatment planning. It involves exposure to minimal radiation.

19 services19 patients

Limited ultrasound scan of pelvis 76857

A limited ultrasound scan of the pelvis is a non-invasive imaging test. It uses high-frequency sound waves to create pictures of the lower abdomen area. This helps doctors view and assess the health of certain internal structures. It's painless and usually takes about 30 minutes.

17 services16 patients

Ultrasound study of arm or leg veins with compression and maneuvers 93970

An ultrasound study of arm or leg veins with compression and maneuvers is a non-invasive procedure that uses sound waves to create images of your veins. This helps identify blood clots or other vein problems. During the procedure, pressure is applied to the veins and certain movements are performed to assess blood flow.

16 services16 patients

Ct scan of chest with contrast 71260

14 services14 patients

Ct scan of chest without contrast 71250

13 services13 patients

X-ray of chest, 1 view 71045

A chest X-ray, 1 view, is a quick, painless test that produces images of the structures within your chest, such as your heart, lungs, and blood vessels. It helps in diagnosing conditions like pneumonia, heart problems, or lung cancer. You'll stand in front of a machine that emits X-rays, which pass through your body to create the image.

12 services12 patients

Ct scan of abdomen before and after contrast 74170

A CT scan of the abdomen before and after contrast is a diagnostic procedure. It involves taking detailed images of your abdomen area. Initially, images are taken without a contrast agent. Then, a contrast dye is given to highlight specific areas inside your body, helping to provide clearer images for better diagnosis.

12 services12 patients

Mri scan of abdomen without contrast 74181

An MRI scan of the abdomen without contrast is a non-invasive imaging test. It uses a magnetic field and radio waves to create detailed pictures of your abdominal organs. This procedure doesn't involve radiation or dye injection.

12 services12 patients

Mri scan of abdomen without contrast 74181

12 services12 patients

Ct scan of abdomen before and after contrast 74170

11 services11 patients

Hospital Affiliations CMS Care Compare 5

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

North Shore University Hospital

Acute Care Hospitals · Manhasset, NY

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330106

Location300 Community DriveManhasset, NY 11030 · Nassau County

Emergency services Birthing friendly

Lenox Hill Hospital

Acute Care Hospitals · New York, NY

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330119

Location100 East 77th StreetNew York, NY 10021 · New York County

Emergency services Birthing friendly

Northern Westchester Hospital

Acute Care Hospitals · Mount Kisco, NY

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330162

Location400 East Main StreetMount Kisco, NY 10549 · Westchester County

Emergency services Birthing friendly

Long Island Jewish Medical Center

Acute Care Hospitals · New Hyde Park, NY

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330195

Location270 - 05 76th AvenueNew Hyde Park, NY 11040 · Nassau County

Emergency services Birthing friendly

Phelps Hospital

Acute Care Hospitals · Sleepy Hollow, NY

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330261

Location701 N BroadwaySleepy Hollow, NY 10591 · Westchester County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11215 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

$105.06 typical visit price

range $67.40 – $203.53

Typical copayment $26.26 (range $16.85 – $50.88)

Most-billed visit code 99203

Established Patient

$83.44 typical visit price

range $21.66 – $164.45

Typical copayment $20.86 (range $5.41 – $41.11)

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.

90.38/100

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

Scored as part of a group practice

Quality

87.09

Promoting Interoperability

100

Improvement Activities

Cost

56.12

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.

DR. VIVIAN JOLLEY BEA M.D.

Surgery

506 6TH ST
BROOKLYN, NY 11215

Kings County (718) 780-3288

YANJIN YANG

Internal Medicine

506 6TH ST
BROOKLYN, NY 11215

Kings County (718) 780-3000

JOY THERESE MULLEN RN, NP

Nurse Practitioner (Adult Health)

506 6TH ST, EP2
BROOKLYN, NY 11215

Kings County (718) 780-5040

ASHWAD AFZAL M.D.

Internal Medicine

506 6TH ST
BROOKLYN, NY 11215

Kings County (718) 780-5246

DR. DANIAH ALBOKHARI M.D.

Student in an Organized Health Care Education/Training Program

506 6TH ST
BROOKLYN, NY 11215

Kings County (718) 780-5260

SASIS SIRIKANJANAPONG

Pathology (Anatomic Pathology)

506 6TH ST
BROOKLYN, NY 11215

Kings County (718) 780-3634

DR. DANIELLE ABADI MD

Pediatrics

506 6TH ST
BROOKLYN, NY 11215

Kings County (718) 780-5260

KOREN H KWAG MD

Student in an Organized Health Care Education/Training Program

506 6TH ST
BROOKLYN, NY 11215

Kings County (718) 780-3000

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 Louis Tsai's NPI number?

The NPI number for Louis Tsai is 1841435468. It was assigned to this individual provider in the NPPES registry on December 10, 2008.

Where is Louis Tsai located?

Louis Tsai practices at 506 6th St, Brooklyn, NY 11215. The listed phone number is (718) 780-5950.

What is Louis Tsai's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Is Louis Tsai enrolled in Medicare?

Yes. Louis Tsai 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 Louis Tsai's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Louis Tsai reassigns Medicare benefits to 5 organizations: Kings Physician Services, PC (Brooklyn, NY), Montefiore Medical Center (New York, NY), North Shore - Lij Medical PC (New Hyde Park, NY), Southside Faculty Medical Affiliates University Faculty Practice Corp (Seaford, NY) and New York University (Boynton Beach, FL). 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 Louis Tsai's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Louis Tsai accept?

Health plans from Blue Cross Blue Shield of Wyoming, Blue Cross and Blue Shield of Texas and HMO Louisiana list Louis Tsai 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.

Is Louis Tsai affiliated with any hospitals?

According to CMS data, Louis Tsai is affiliated with North Shore University Hospital, Lenox Hill Hospital, Northern Westchester Hospital, Long Island Jewish Medical Center and Phelps Hospital.

When was this NPI record last updated?

The NPPES record for Louis Tsai was last updated on January 3, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.