STEFAN J CHIN MD
NPI 1891794152
Internal Medicine - Gastroenterology in Daly City, CA

Q: What is Stefan Chin's NPI number?

The NPI number for Stefan Chin is 1891794152. It was assigned to this individual provider in the NPPES registry on July 19, 2005.

Q: What is Stefan Chin'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 Stefan Chin was last updated on September 10, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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 July 19, 2005PECOS EnrolledAccepts Medicare Assignment

100/100

CMS Quality Rating

1850 SULLIVAN AVE, #520, DALY CITY, CA 94015(650) 756-5000(650) 756-5903 Get Directions Write a Review

NPPES record last updated: September 10, 2014. Verified against the NPPES registry weekly; last sync: August 02, 2026.

On this page

About Stefan J Chin Md NPPES

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

STEFAN J CHIN MD (NPI 1891794152) is an individual gastroenterology provider in Daly City, California, licensed in California (G83120) and active in the NPI registry since July 2005. He is enrolled in Medicare PECOS and is a graduate of Columbia University College Of Physicians And Surgeons (1993).

NPPES Registry Identity

NPI1891794152

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameSTEFAN J CHINCredential: MD

Location Address1850 SULLIVAN AVE, #520Daly City, CA 94015-2221

Mailing Address1850 Sullivan Ave, #520Daly City, CA 94015-2221 · (650) 756-5000 · Fax (650) 756-5903

Phone(650) 756-5000

Fax(650) 756-5903

Sole ProprietorNo

Medical School CMSColumbia University College Of Physicians And SurgeonsGraduated 1993

Enumeration DateJuly 19, 2005

Last NPPES UpdateSeptember 10, 2014

✔ NPI 1891794152 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

License✔ Licensed in CA · G83120

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.

1850 SULLIVAN AVE, Daly City, CA 94015

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Other Identifiers 4

Medicare PINZZZ73383Z

Medicare UPING78790

Medicare PIN100016188

MedicaidGR0092050CA

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

Stefan J Chin 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 ID6507752417

PECOS Enrollment IDI20090717000611

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.

Areas of Expertise CMS Part B claims 13

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.

Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month 99439

Chronic Care Management services involve regular check-ins with healthcare professionals to manage two or more chronic conditions. It includes an additional 20 minutes of clinical staff time per month, directed by a healthcare professional, to ensure optimal health management.

328 services29 patients

Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month 99490

Chronic care management services involve a healthcare professional directing clinical staff in managing your chronic conditions. This includes the first 20 minutes per month of services like medication management, care coordination, and health monitoring to help improve your health and quality of life.

193 services29 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.

182 services140 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.

172 services124 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.

88 services87 patients

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.

64 services29 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.

58 services57 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.

49 services49 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.

43 services43 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

32 services32 patients

Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito G0500

Moderate sedation is a method where a physician uses medication to help you relax during a gastrointestinal endoscopy. An independent trained observer will be present to monitor your vital signs and ensure your safety throughout the procedure. It's a common and safe practice.

32 services25 patients

Ultrasound scan of organ tissue for measuring elasticity 76981

An ultrasound scan of organ tissue measures elasticity, or flexibility. This non-invasive procedure uses sound waves to create images of the inside of your body. It helps in assessing the health of various organs by detecting changes in their stiffness or softness.

22 services22 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

19 services18 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94015 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.

100/100

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

Individually scored

Promoting Interoperability

100

Improvement Activities

Reported Quality Measures

e-Prescribing

96%679 patients3/55-star benchmark: 100%

Provide Patients Electronic Access to Their Health Information

94%492 patients4/55-star benchmark: 100%

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

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.

MR. FIDEL MANZANO CADAG NP - C

Nurse Practitioner (Family)

1850 SULLIVAN AVE, SUITE 310
DALY CITY, CA 94015

San Mateo County (650) 755-3939

CAROL MARRACCINI-OTTO PA-C

Physician Assistant

1850 SULLIVAN AVE, SUITE 330
DALY CITY, CA 94015

San Mateo County (650) 756-5630

BERNARD ROAZEN MD

Family Medicine

1850 SULLIVAN AVE, #150
DALY CITY, CA 94015

San Mateo County (650) 994-2300

AMAN SHABI KHAN MD

Orthopaedic Surgery (Sports Medicine)

1850 SULLIVAN AVE, SUITE 330
DALY CITY, CA 94015

San Mateo County (650) 756-5630

BAY AREA DIGESTIVE HEALTH MEDICAL GROUP, INC.

Specialist

1850 SULLIVAN AVE, SUITE 520
DALY CITY, CA 94015

San Mateo County (650) 756-5000

STEPHEN JOHN SCHEIFELE MD

Obstetrics & Gynecology

1850 SULLIVAN AVE, #550
DALY CITY, CA 94015

San Mateo County (650) 756-2404

SERENA YEE O.D.

Optometrist

1850 SULLIVAN AVE, SUITE 540
DALY CITY, CA 94015

San Mateo County (650) 755-6900

MRS. THUY NGUYEN M.D.

Ophthalmology

1850 SULLIVAN AVE, STE 500
DALY CITY, CA 94015

San Mateo County (925) 992-9221

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 Stefan Chin's NPI number?

The NPI number for Stefan Chin is 1891794152. It was assigned to this individual provider in the NPPES registry on July 19, 2005.

Where is Stefan Chin located?

Stefan Chin practices at 1850 Sullivan Ave #520, Daly City, CA 94015. The listed phone number is (650) 756-5000.

What is Stefan Chin's specialty?

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

Is Stefan Chin enrolled in Medicare?

Yes. Stefan Chin 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.

When was this NPI record last updated?

The NPPES record for Stefan Chin was last updated on September 10, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.