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DR. WON-SEOK JO M.D.
NPI 1245215144
Internal Medicine - Gastroenterology in San Bernardino, CA

Active since December 13, 2005PECOS EnrolledAccepts Medicare Assignment
424 E VANDERBILT WAY STE B, SAN BERNARDINO, CA 92408(909) 796-0363(909) 255-7292 Get Directions Write a Review

NPPES record last updated: October 17, 2023. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Oct 17, 2023, Sep 20, 2022 (2 updates tracked since 2022).

About Dr. Won-seok Jo M.d. NPPES

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

DR. WON-SEOK JO M.D. (NPI 1245215144) is an individual gastroenterology provider in San Bernardino, California, licensed in California (A91260) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS and is a graduate of University Of California, San Diego School Of Medicine (1999).

NPPES Registry Identity

NPI1245215144
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameDR. WON-SEOK JOCredential: M.D.
Location Address424 E VANDERBILT WAY STE BSan Bernardino, CA 92408-3552
Mailing Address424 E Vanderbilt Way Ste BSan Bernardino, CA 92408-3552 · (909) 796-0363 · Fax (909) 255-7292
Phone(909) 796-0363
Fax(909) 255-7292
Sole ProprietorYes
Medical School CMSUniversity Of California, San Diego School Of MedicineGraduated 1999
Enumeration DateDecember 13, 2005
Last NPPES UpdateOctober 17, 20232 updates tracked since enumeration
NPPES CertifiedAugust 28, 2023
✔ NPI 1245215144 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 · A91260
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.
424 E VANDERBILT WAY STE B, San Bernardino, CA 92408
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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. Won-seok Jo 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 ID2961448667
PECOS Enrollment IDI20050705000356
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 10

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.

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.
113 services107 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.
104 services104 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.
88 services88 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.
68 services51 patients
Diagnostic exam of large bowel using a flexible endoscope 45378
This procedure, known as a colonoscopy, involves using a flexible tube with a light and camera to examine the large intestine. It helps detect any abnormalities such as polyps or inflammation. It's a standard procedure to ensure gut health.
58 services58 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.
47 services47 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92408 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
$136.04 typical visit price
range $59.60 – $179.42
Typical copayment $34.01 (range $14.90 – $44.85)
Most-billed visit code 99204
Established Patient
$104.64 typical visit price
range $19.37 – $146.42
Typical copayment $26.16 (range $4.84 – $36.60)
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.

Other Providers at the Same Location NPPES

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

WON JO, MD, INC
Internal Medicine (Gastroenterology)
424 E VANDERBILT WAY STE B
SAN BERNARDINO, CA 92408
San Bernardino County (909) 796-0363

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 Won-seok Jo's NPI number?

The NPI number for Won-seok Jo is 1245215144. It was assigned to this individual provider in the NPPES registry on December 13, 2005.

Where is Won-seok Jo located?

Won-seok Jo practices at 424 E Vanderbilt Way Ste B, San Bernardino, CA 92408. The listed phone number is (909) 796-0363.

What is Won-seok Jo's specialty?

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

Is Won-seok Jo enrolled in Medicare?

Yes. Won-seok Jo 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 Won-seok Jo was last updated on October 17, 2023. 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.