MARY Y HU M.D.
NPI 1659339059
Internal Medicine - Gastroenterology in Fremont, CA

Q: What is Mary Hu's NPI number?

The NPI number for Mary Hu is 1659339059. It was assigned to this individual provider in the NPPES registry on May 3, 2006.

Q: What is Mary Hu'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 Mary Hu was last updated on May 27, 2020. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since May 03, 2006PECOS EnrolledAccepts Medicare Assignment

3200 KEARNEY ST, FREMONT, CA 94538(510) 490-1222 Get Directions Write a Review

NPPES record last updated: May 27, 2020. Verified against the NPPES registry weekly; last sync: July 26, 2026.

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About Mary Y Hu M.d. NPPES

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

MARY Y HU M.D. (NPI 1659339059) is an individual gastroenterology provider in Fremont, California, licensed in California (A84011) and active in the NPI registry since May 2006. She is enrolled in Medicare PECOS and is a graduate of Harvard Medical School (2002).

NPPES Registry Identity

NPI1659339059

Entity TypeIndividualFemale

Primary Taxonomy207RG0100X

Provider Legal NameMARY Y HUCredential: M.D.

Location Address3200 KEARNEY STFremont, CA 94538-2299

Mailing Address325 Distel CirLos Altos, CA 94022-1408 · (510) 498-2395

Phone(510) 490-1222

Sole ProprietorNo

Medical School CMSHarvard Medical SchoolGraduated 2002

Enumeration DateMay 3, 2006

Last NPPES UpdateMay 27, 2020

NPPES CertifiedMay 27, 2020

✔ NPI 1659339059 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 · A84011

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.

3200 KEARNEY ST, Fremont, CA 94538

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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

Mary Y Hu 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 ID5698836732

PECOS Enrollment IDI20081208000089

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 6

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 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.

89 services89 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.

71 services70 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.

63 services53 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.

40 services40 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.

33 services33 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.

16 services15 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94538 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.

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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.

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