Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. ROCK CHEN CHUN LIU MD
NPI 1174601256
Surgery in Emeryville, CA

Q: What is Rock Liu's NPI number?

The NPI number for Rock Liu is 1174601256. It was assigned to this individual provider in the NPPES registry on November 2, 2006. The provider is also known as Dr. Rockson C Liu MD.

Q: What is Rock Liu's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Q: When was this NPI record last updated?

The NPPES record for Rock Liu was last updated on September 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 38 days 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 02, 2006PECOS EnrolledAccepts Medicare Assignment

5901 CHRISTIE AVE STE 401, EMERYVILLE, CA 94608(510) 465-5523 Get Directions Write a Review

NPPES record last updated: September 22, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Sep 22, 2026, Feb 26, 2025 (2 updates tracked since 2025).

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About Dr. Rock Chen Chun Liu Md NPPES

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

DR. ROCK CHEN CHUN LIU MD (NPI 1174601256) is an individual surgery provider in Emeryville, California, licensed in California (A91143) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS and is a graduate of Ohio State University College Of Medicine (1999).

NPPES Registry Identity

NPI1174601256

Entity TypeIndividualMale

Primary Taxonomy208600000X

Provider Legal NameDR. ROCK CHEN CHUN LIUCredential: MD

Location Address5901 CHRISTIE AVE STE 401Emeryville, CA 94608-1936

Mailing Address5901 Christie Ave Ste 401Emeryville, CA 94608-1936 · (510) 465-5523

Phone(510) 465-5523

Sole ProprietorNo

Medical School CMSOhio State University College Of MedicineGraduated 1999

Enumeration DateNovember 2, 2006

Last NPPES UpdateSeptember 22, 20262 updates tracked since enumeration

NPPES CertifiedSeptember 22, 2026

✔ NPI 1174601256 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians

Taxonomy Code208600000X

License✔ Licensed in CA · A91143

Definition

A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

5901 CHRISTIE AVE STE 401, Emeryville, CA 94608

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Other Names 1

Other Name (5)Dr. Rockson C Liu Md

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Rock Chen Chun Liu 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 ID3072585447

PECOS Enrollment IDI20051004001112

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.

Medicare Billing Reassignments

Medicare enrollment records show Rock Liu reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Permanente Medical Group Inc

7.6 mi

Internal Medicine

901 NEVIN
Richmond, CA 94801

Reassigned Medicare billing, California enrollment
20,078 clinicians in this Medicare group

NPI 1235226531 (510) 307-1555

Bass Medical Group

15 mi

Orthopaedic Surgery

19842 LAKE CHABOT RD
Castro Valley, CA 94546

Reassigned Medicare billing, California enrollment
347 clinicians in this Medicare group

NPI 1093181646 (510) 886-8844

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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.

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.

102 services102 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.

91 services71 patients

Repair of groin hernia using an endoscope 49650

This procedure involves the use of an endoscope, a thin tube with a camera, to repair a hernia in the groin area. The surgeon makes small incisions, inserts the endoscope, and uses special tools to fix the hernia. This minimally invasive technique often results in quicker recovery times.

45 services45 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.

42 services35 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.

41 services39 patients

Creation of muscle graft to trunk 15734

The creation of a muscle graft to the trunk is a surgical procedure where healthy muscle tissue is moved from one part of the body to another. This helps to repair damaged areas, improve function, and enhance appearance. It's a common procedure in reconstructive surgery.

39 services21 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94608 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

$104.51 typical visit price

range $69.00 – $202.35

Typical copayment $26.12 (range $17.25 – $50.58)

Most-billed visit code 99203

Established Patient

$84.91 typical visit price

range $23.44 – $166.46

Typical copayment $21.22 (range $5.86 – $41.61)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Rock Liu's NPI number?

The NPI number for Rock Liu is 1174601256. It was assigned to this individual provider in the NPPES registry on November 2, 2006. The provider is also known as Dr. Rockson C Liu MD.

Where is Rock Liu located?

Rock Liu practices at 5901 Christie Ave Ste 401, Emeryville, CA 94608. The listed phone number is (510) 465-5523.

What is Rock Liu's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Rock Liu enrolled in Medicare?

Yes. Rock Liu 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.

Which organizations bill Medicare for Rock Liu's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Rock Liu reassigns Medicare benefits to 2 organizations: Permanente Medical Group Inc (Richmond, CA) and Bass Medical Group (Castro Valley, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Rock Liu's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Rock Liu was last updated on September 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 38 days 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.