CHRISTOPHER AOKI M.D.
NPI 1164460499
Internal Medicine - Gastroenterology in Sacramento, CA

Q: What is Christopher Aoki's NPI number?

The NPI number for Christopher Aoki is 1164460499. It was assigned to this individual provider in the NPPES registry on June 2, 2006.

Q: What is Christopher Aoki'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 Christopher Aoki was last updated on November 19, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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 June 02, 2006PECOS EnrolledAccepts Medicare Assignment

4150 V ST, PSSB #3500, SACRAMENTO, CA 95817(916) 734-7183 Get Directions Write a Review

NPPES record last updated: November 19, 2008. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Christopher Aoki M.d. NPPES

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

CHRISTOPHER AOKI M.D. (NPI 1164460499) is an individual gastroenterology provider in Sacramento, California, licensed in Hawaii (14000) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with The Queens Medical Center, and is a graduate of University Of Hawaii John A. Burns School Of Medicine (2001).

NPPES Registry Identity

NPI1164460499

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameCHRISTOPHER AOKICredential: M.D.

Location Address4150 V ST, PSSB #3500Sacramento, CA 95817-1460

Mailing Address550 S Beretania St, Suite 510Honolulu, HI 96813-2414

Phone(916) 734-7183

Sole ProprietorNo

Medical School CMSUniversity Of Hawaii John A. Burns School Of MedicineGraduated 2001

Enumeration DateJune 2, 2006

Last NPPES UpdateNovember 19, 2008

✔ NPI 1164460499 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

Licenses✔ Licensed in HI · 14000✔ Licensed in CA · A80649

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.

4150 V ST, Sacramento, CA 95817

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include HMSA.Insurance ›

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 Aoki 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 ID4789660143

PECOS Enrollment IDI20081027000633

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 12

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 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.

81 services44 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.

76 services61 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

66 services39 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

60 services51 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.

54 services50 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

39 services33 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.

37 services35 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.

30 services30 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.

22 services22 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

19 services19 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.

17 services17 patients

Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43235

This procedure, known as an upper endoscopy, involves inserting a thin, flexible tube with a camera down the throat to examine the esophagus, stomach, and upper small bowel. It helps diagnose conditions like ulcers or inflammation.

16 services16 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

The Queens Medical Center

Acute Care Hospitals · Honolulu, HI

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number120001

Location1301 Punchbowl StHonolulu, HI 96813 · Honolulu County

Emergency services Birthing friendly

North Hawaii Community Hospital, Inc

Acute Care Hospitals · Kamuela, HI

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number120028

Location67 1125 Mamalahoa HighwayKamuela, HI 96743 · Hawaii County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95817 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

$137.20 typical visit price

range $60.44 – $180.85

Typical copayment $34.30 (range $15.11 – $45.21)

Most-billed visit code 99204

Established Patient

$105.95 typical visit price

range $19.88 – $148.15

Typical copayment $26.48 (range $4.97 – $37.03)

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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

Reported Quality Measures

Appropriate indication for colonoscopy

Percentage of colonoscopy procedures performed for an indication that is included in a published standard list of appropriate indications and the indication is documented

88%469 patients4/55-star benchmark: 99%

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

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.

KENNETH D. WHEELER CRNA

Nurse Anesthetist, Certified Registered

4150 V ST, PSSB-SUITE 1200, MED: ANESTHESIA
SACRAMENTO, CA 95817

Sacramento County (916) 734-7985

DR. MICHAEL JOHN THORNTON MD

Internal Medicine (Critical Care Medicine)

4150 V ST, SUITE 3400
SACRAMENTO, CA 95817

Sacramento County (916) 734-3566

THOMAS M. GOODNOW CRNA

Nurse Anesthetist, Certified Registered

4150 V ST, PSSB-SUITE 1200, MED: ANESTHESIA
SACRAMENTO, CA 95817

Sacramento County (916) 734-7985

DR. POURIA KASHKOULI M.D.

Internal Medicine

4150 V ST, #3116
SACRAMENTO, CA 95817

Sacramento County (916) 734-7080

DR. ALISON SEMRAD D.O.

Internal Medicine (Endocrinology, Diabetes & Metabolism)

4150 V ST, #3116
SACRAMENTO, CA 95817

Sacramento County (916) 734-7080

DR. DIANE HADDOCK M.D.

Internal Medicine

4150 V ST, #3116
SACRAMENTO, CA 95817

Sacramento County (916) 734-7080

JOHN S MILLAR M.D.

Internal Medicine (Critical Care Medicine)

4150 V ST, SUITE 3400
SACRAMENTO, CA 95817

Sacramento County (916) 734-3564

UC DAVIS

General Acute Care Hospital

4150 V ST, 2100
SACRAMENTO, CA 95817

Sacramento County (916) 734-8583

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 Aoki's NPI number?

The NPI number for Christopher Aoki is 1164460499. It was assigned to this individual provider in the NPPES registry on June 2, 2006.

Where is Christopher Aoki located?

Christopher Aoki practices at 4150 V St Pssb #3500, Sacramento, CA 95817. The listed phone number is (916) 734-7183.

What is Christopher Aoki's specialty?

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

Is Christopher Aoki enrolled in Medicare?

Yes. Christopher Aoki 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.

What insurance does Christopher Aoki accept?

Health plans from HMSA list Christopher Aoki as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Christopher Aoki affiliated with any hospitals?

According to CMS data, Christopher Aoki is affiliated with The Queens Medical Center and North Hawaii Community Hospital, Inc.

When was this NPI record last updated?

The NPPES record for Christopher Aoki was last updated on November 19, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.