CHRISTOPHER ROMBAOA M.D.
NPI 1225457211
Internal Medicine - Gastroenterology in San Jose, CA

Q: What is Christopher Rombaoa's NPI number?

The NPI number for Christopher Rombaoa is 1225457211. It was assigned to this individual provider in the NPPES registry on April 7, 2014.

Q: What is Christopher Rombaoa's specialty?

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

Active since April 07, 2014PECOS EnrolledAccepts Medicare Assignment

751 SOUTH BASCOM AVENUE, SAN JOSE, CA 95128(619) 972-6910 Get Directions Write a Review

NPPES record last updated: October 22, 2021. Verified against the NPPES registry weekly; last sync: August 09, 2026.

On this page

About Christopher Rombaoa M.d. NPPES

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

CHRISTOPHER ROMBAOA M.D. (NPI 1225457211) is an individual gastroenterology provider in San Jose, California, licensed in California (1147334) and active in the NPI registry since April 2014. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (2014).

NPPES Registry Identity

NPI1225457211

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameCHRISTOPHER ROMBAOACredential: M.D.

Location Address751 SOUTH BASCOM AVENUESan Jose, CA 95128

Mailing Address325 Distel CirLos Altos, CA 94022-1408 · (415) 600-4025 · Fax (415) 375-4838

Phone(619) 972-6910

Sole ProprietorYes

Medical School CMSOtherGraduated 2014

Enumeration DateApril 7, 2014

Last NPPES UpdateOctober 22, 2021

NPPES CertifiedOctober 22, 2021

✔ NPI 1225457211 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 · 1147334

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 ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

751 SOUTH BASCOM AVENUE, San Jose, CA 95128

Open in Google Maps ↗

Secondary Practice Locations 2

Location 13838 California StSan Francisco, CA 94118-1522 · Phone (415) 450-9666 · Fax (415) 387-2940

Location 21100 Van Ness AveSan Francisco, CA 94109-6978 · Phone (415) 600-4025 · Fax (415) 375-4838

Other Identifiers 1

OtherA138657CA · Medical State License

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

Christopher Rombaoa 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 ID7214205236

PECOS Enrollment IDI20170615002715

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 11

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.

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.

120 services70 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.

79 services58 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

48 services25 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.

30 services30 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.

26 services26 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.

23 services23 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.

22 services22 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.

19 services19 patients

Study of esophageal sensation by balloon distension 91040

This procedure involves inflating a small balloon in the esophagus, the tube connecting your mouth to your stomach. It helps doctors understand how your esophagus responds to pressure changes, aiding in the diagnosis of certain digestive disorders.

13 services13 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.

13 services13 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.

12 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95128 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

$156.67 typical visit price

range $70.37 – $206.04

Typical copayment $39.16 (range $17.59 – $51.51)

Most-billed visit code 99204

Established Patient

$121.77 typical visit price

range $23.96 – $169.60

Typical copayment $30.44 (range $5.99 – $42.40)

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.

Other Providers at the Same Location NPPES 3

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

CHEN-TSEN SHU M.D.

Internal Medicine

751 SOUTH BASCOM AVENUE
SAN JOSE, CA 95128

Santa Clara County (408) 885-5000

DR. HENRY NG HUIE MD

Physical Medicine & Rehabilitation

751 SOUTH BASCOM AVENUE, DEPARTMENT OF PHYSICAL MEDICINE AND REHABILITATION
SAN JOSE, CA 95128

Santa Clara County (408) 885-2100

PETER MICHAEL INTEMANN MD

Emergency Medicine

751 SOUTH BASCOM AVENUE, SANTA CLARA VALLEY MEDICAL CENTER
SAN JOSE, CA 95128

Santa Clara County (408) 885-2334

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 Christopher Rombaoa's NPI number?

The NPI number for Christopher Rombaoa is 1225457211. It was assigned to this individual provider in the NPPES registry on April 7, 2014.

Where is Christopher Rombaoa located?

Christopher Rombaoa practices at 751 South Bascom Avenue, San Jose, CA 95128. The listed phone number is (619) 972-6910.

What is Christopher Rombaoa's specialty?

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

Is Christopher Rombaoa enrolled in Medicare?

Yes. Christopher Rombaoa 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 Christopher Rombaoa was last updated on October 22, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.