SUN-CHUAN DAI MD
NPI 1811157050
Internal Medicine - Gastroenterology in San Francisco, CA

Q: What is Sun-chuan Dai's NPI number?

The NPI number for Sun-chuan Dai is 1811157050. It was assigned to this individual provider in the NPPES registry on June 11, 2008.

Q: What is Sun-chuan Dai's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Q: When was this NPI record last updated?

The NPPES record for Sun-chuan Dai was last updated on April 1, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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 June 11, 2008PECOS EnrolledAccepts Medicare Assignment

81.67/100

CMS Quality Rating

1001 POTRERO AVE, SAN FRANCISCO, CA 94110(628) 206-8000 Get Directions Write a Review

NPPES record last updated: April 1, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

On this page

About Sun-chuan Dai Md NPPES

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

SUN-CHUAN DAI MD (NPI 1811157050) is an individual gastroenterology provider in San Francisco, California, licensed in California (A103227) and active in the NPI registry since June 2008. He is enrolled in Medicare PECOS and is a graduate of Baylor College Of Medicine (2006).

NPPES Registry Identity

NPI1811157050

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameSUN-CHUAN DAICredential: MD

Location Address1001 POTRERO AVESan Francisco, CA 94110-3518

Mailing Address1001 Potrero AveSan Francisco, CA 94110-3518 · (628) 206-8000

Phone(628) 206-8000

Sole ProprietorNo

Medical School CMSBaylor College Of MedicineGraduated 2006

Enumeration DateJune 11, 2008

Last NPPES UpdateApril 1, 2026

NPPES CertifiedApril 1, 2026

✔ NPI 1811157050 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

License✔ Licensed in CA · A103227

Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

Also ListedInternal MedicineTaxonomy 207R00000X · License A103227 (CA)

1001 POTRERO AVE, San Francisco, CA 94110

Open in Google Maps ↗

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

Sun-chuan Dai 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 ID345387940

PECOS Enrollment IDI20091030000577

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 Sun-chuan Dai reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

City & County Of San Francisco

Same address

General Acute Care Hospital

1001 POTRERO AVE, BUILDING 5, WARD 1B
San Francisco, CA 94110

Reassigned Medicare billing, California enrollment
1,573 clinicians in this Medicare group

NPI 1083648810 (415) 759-4067

University Of California Sfgh Medical Group

Same address

Gastroenterology

1001 POTRERO AVE, RM 305
San Francisco, CA 94110

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

NPI 1578538609 (415) 206-3736

Regents Of The University Of California

2.8 mi

Endocrinology, Diabetes & Metabolism

1600 DIVISADERO ST
San Francisco, CA 94143

Reassigned Medicare billing, California enrollment
2,112 clinicians in this Medicare group

NPI 1235322348 (415) 353-9720

University Of California San Francisco

3.0 mi

Surgery

400 PARNASSUS AVE, MCB 300
San Francisco, CA 94143

Reassigned Medicare billing, California enrollment
5,645 clinicians in this Medicare group

NPI 1346329380 (415) 353-2161

Ucsf Medical Group Business Services

3.0 mi

Internal Medicine

400 PARNASSUS AVE
San Francisco, CA 94122

Reassigned Medicare billing, California enrollment
5,544 clinicians in this Medicare group

NPI 1477624104 (415) 353-2808

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 14

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.

Review by radiologist of image from tube placement into bile duct using an endoscope 74328

This procedure involves a specialist, called a radiologist, examining an image taken during a tube placement into your bile duct. The tube is inserted with the help of a tool called an endoscope. This allows the doctor to check for any issues or abnormalities in your bile duct.

84 services55 patients

Insertion of stent into pancreatic or bile duct using a flexible endoscope 43274

This procedure involves the placement of a tiny tube, known as a stent, into your pancreatic or bile duct. A flexible endoscope, a long, thin instrument with a light and camera, is used. It aids in relieving blockages and improving flow in these ducts.

52 services33 patients

Ultrasound guided needle aspiration or biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43242

This procedure involves using an ultrasound to guide a needle to specific areas in the esophagus, stomach, or upper small bowel. A flexible endoscope is used to reach these areas. The needle collects a small sample for testing.

49 services46 patients

Removal of stone or debris from bile or pancreatic duct using a flexible endoscope 43264

This procedure, called an endoscopic retrograde cholangiopancreatography (ERCP), involves using a flexible tube with a camera (endoscope) to locate and remove stones or debris from your bile or pancreatic duct. It's a non-surgical method to clear the ducts, enhancing your digestive health.

49 services38 patients

Replacement of stent in pancreatic or bile duct using a flexible endoscope 43276

This procedure involves replacing an existing stent in your pancreatic or bile duct. A flexible endoscope, a tube-like device with a light and camera, is used to view and access the area. The old stent is removed and a new one is placed to help keep the duct open.

45 services21 patients

Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385

This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.

41 services41 patients

Ultrasound exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43259

This procedure involves a flexible tube with a camera, called an endoscope, inserted through your mouth to examine your esophagus, stomach, and upper small bowel. An ultrasound device on the endoscope helps get detailed images. It's safe and helps diagnose various conditions.

38 services38 patients

Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239

This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.

37 services36 patients

Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43235

This procedure, known as an upper endoscopy, involves inserting a thin, flexible tube with a camera down the throat to examine the esophagus, stomach, and upper small bowel. It helps diagnose conditions like ulcers or inflammation.

17 services17 patients

Biopsy of large bowel using a flexible endoscope 45380

A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.

15 services15 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.

15 services15 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.

13 services13 patients

Incision of pancreatic outlet using a flexible endoscope 43262

This procedure involves a small cut in the outlet of the pancreas using a flexible tube with a camera, called an endoscope. It helps doctors diagnose and treat conditions affecting the pancreas, enhancing patient comfort and recovery.

12 services12 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.

11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94110 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

$153.83 typical visit price

range $69.00 – $202.35

Typical copayment $38.45 (range $17.25 – $50.58)

Most-billed visit code 99204

Established Patient

$119.48 typical visit price

range $23.44 – $166.46

Typical copayment $29.87 (range $5.86 – $41.61)

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.

81.67/100

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

Individually scored

Quality

90.87

Improvement Activities

Cost

74.28

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.

ROCIO C AGRAZ-LARA RN, PHN

Registered Nurse

1001 POTRERO AVE, ZSFG BUILDING 90 4TH FLOOR
SAN FRANCISCO, CA 94110

San Francisco County (415) 206-8524

DR. SUSAN WLODARCZYK MD

Student in an Organized Health Care Education/Training Program

1001 POTRERO AVE, BLDG 10, 3RD FLOOR, WARD 13 BOX 1364
SAN FRANCISCO, CA 94110

San Francisco County (415) 206-5164

AMY DINER PSY.D.

Student in an Organized Health Care Education/Training Program

1001 POTRERO AVE
SAN FRANCISCO, CA 94110

San Francisco County (415) 206-5270

CHRISTOPHER RUIZ

Case Manager/Care Coordinator

1001 POTRERO AVE
SAN FRANCISCO, CA 94110

San Francisco County (415) 206-3950

C. STIRLING SOMERS

Counselor

1001 POTRERO AVE
SAN FRANCISCO, CA 94110

San Francisco County (415) 206-5270

WILLIAM RUSSEL CARPENTER FNP-C

Nurse Practitioner (Family)

1001 POTRERO AVE
SAN FRANCISCO, CA 94110

San Francisco County (628) 206-8000

REGENTS OF THE UNIVERSITY OF CALIFORNIA

Clinical Medical Laboratory

1001 POTRERO AVE, BLDG 100, RM 104
SAN FRANCISCO, CA 94110

San Francisco County (415) 502-4775

DR. DENISE RENEE GONZALEZ MD

Internal Medicine

1001 POTRERO AVE, 1M
SAN FRANCISCO, CA 94110

San Francisco County (415) 206-6075

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 Sun-chuan Dai's NPI number?

The NPI number for Sun-chuan Dai is 1811157050. It was assigned to this individual provider in the NPPES registry on June 11, 2008.

Where is Sun-chuan Dai located?

Sun-chuan Dai practices at 1001 Potrero Ave, San Francisco, CA 94110. The listed phone number is (628) 206-8000.

What is Sun-chuan Dai's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Sun-chuan Dai enrolled in Medicare?

Yes. Sun-chuan Dai 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 Sun-chuan Dai's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sun-chuan Dai reassigns Medicare benefits to 5 organizations: City & County Of San Francisco (San Francisco, CA), University Of California Sfgh Medical Group (San Francisco, CA), Regents Of The University Of California (San Francisco, CA), University Of California San Francisco (San Francisco, CA) and Ucsf Medical Group Business Services (San Francisco, 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 Sun-chuan Dai'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 Sun-chuan Dai was last updated on April 1, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.