DR. HONG GU MD
NPI 1205908027
Internal Medicine in Mountain View, CA

Q: What is Hong Gu's NPI number?

The NPI number for Hong Gu is 1205908027. It was assigned to this individual provider in the NPPES registry on November 15, 2006. The provider is also known as Kathy Hong Gu.

Q: What is Hong Gu's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Q: When was this NPI record last updated?

The NPPES record for Hong Gu was last updated on January 27, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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 November 15, 2006PECOS Enrolled

555 CASTRO ST, MOUNTAIN VIEW, CA 94041(650) 903-2716 Get Directions Write a Review

NPPES record last updated: January 27, 2011. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Dr. Hong Gu Md NPPES

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

DR. HONG GU MD (NPI 1205908027) is an individual internal medicine provider in Mountain View, California, licensed in California (A67285) and active in the NPI registry since November 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1205908027

Entity TypeIndividualFemale

Primary Taxonomy207R00000X

Provider Legal NameDR. HONG GUCredential: MD

Location Address555 CASTRO STMountain View, CA 94041-2009

Mailing Address1800 Harrison St Fl 7Oakland, CA 94612-3429 · (510) 625-6262

Phone(650) 903-2716

Sole ProprietorNo

Enumeration DateNovember 15, 2006

Last NPPES UpdateJanuary 27, 2011

✔ NPI 1205908027 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in CA · A67285

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

555 CASTRO ST, Mountain View, CA 94041

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Other Names 1

Professional Name (2)Kathy Hong Gu

Other Identifiers 3

Medicare UPINH28851

Medicaid00A672850CA

Medicare PIN00A672850

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Hong Gu Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94041 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 20

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

JENNIE JACOB

Pharmacist

555 CASTRO ST
MOUNTAIN VIEW, CA 94041

Santa Clara County (650) 903-2159

SINDEY K. CHUNG MD

Internal Medicine (Geriatric Medicine)

555 CASTRO ST
MOUNTAIN VIEW, CA 94041

Santa Clara County (650) 903-3000

DR. JOHN J. ZAVOSHY M.D.

Contractor

555 CASTRO ST, MOUNTAIN VIEW
MOUNTAIN VIEW, CA 94041

Santa Clara County (650) 903-2600

SHULEI CHEN

Psychiatry & Neurology (Psychiatry)

555 CASTRO ST
MOUNTAIN VIEW, CA 94041

Santa Clara County (650) 903-3000

DR. MARISA YANEZ JAYAKAR MD

Family Medicine (Sports Medicine)

555 CASTRO ST
MOUNTAIN VIEW, CA 94041

Santa Clara County (650) 903-3000

ANDREA ASLAN MD

Obstetrics & Gynecology

555 CASTRO ST
MOUNTAIN VIEW, CA 94041

Santa Clara County (650) 903-3000

LIANGHUEY LEU MD

Family Medicine

555 CASTRO ST
MOUNTAIN VIEW, CA 94041

Santa Clara County (650) 903-3020

GRETCHEN H. ROOKER MD

Internal Medicine

555 CASTRO ST
MOUNTAIN VIEW, CA 94041

Santa Clara County (650) 903-3000

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 Hong Gu's NPI number?

The NPI number for Hong Gu is 1205908027. It was assigned to this individual provider in the NPPES registry on November 15, 2006. The provider is also known as Kathy Hong Gu.

Where is Hong Gu located?

Hong Gu practices at 555 Castro St, Mountain View, CA 94041. The listed phone number is (650) 903-2716.

What is Hong Gu's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Hong Gu enrolled in Medicare?

Yes. Hong Gu is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Hong Gu was last updated on January 27, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.