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DR. CHIEN-KO WU M.D.
NPI 1275680829
Internal Medicine in Orange, CA

Active since January 05, 2007PECOS EnrolledAccepts Medicare Assignment
991 N TUSTIN ST, SUITE 101, ORANGE, CA 92867(714) 639-6162(714) 639-5835 Get Directions Write a Review

NPPES record last updated: July 9, 2007. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Chien-ko Wu M.d. NPPES

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

DR. CHIEN-KO WU M.D. (NPI 1275680829) is an individual internal medicine provider in Orange, California, licensed in California (A38491) and active in the NPI registry since January 2007. He is enrolled in Medicare PECOS and is a graduate of Other (1974).

NPPES Registry Identity

NPI1275680829
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. CHIEN-KO WUCredential: M.D.
Location Address991 N TUSTIN ST, SUITE 101Orange, CA 92867-5900
Mailing Address991 N Tustin St, Suite 101Orange, CA 92867-5900 · (714) 639-6162 · Fax (714) 639-5835
Phone(714) 639-6162
Fax(714) 639-5835
Sole ProprietorYes
Medical School CMSOtherGraduated 1974
Enumeration DateJanuary 5, 2007
Last NPPES UpdateJuly 9, 2007
✔ NPI 1275680829 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 · A38491
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.
991 N TUSTIN ST, Orange, CA 92867
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Other Identifiers 4

Medicaid00A384910CA
OtherA38491CA · Pin
Medicare ID-Type UnspecifiedA88463CA
Medicare UPINA88463CA

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

Dr. Chien-ko Wu 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 ID9032377205
PECOS Enrollment IDI20120220000077
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 9

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.

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.
444 services22 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.
342 services87 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.
133 services59 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.
105 services77 patients
Insertion of needle into vein (3 years or older) 36410
This procedure involves placing a small needle into a vein, typically in the arm. It's done to collect blood for testing or to deliver medication. You may feel a quick pinch, but it's usually over in seconds. It's a common, safe procedure.
93 services57 patients
Administration of influenza virus vaccine G0008
The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.
20 services19 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92867 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
$142.39 typical visit price
range $62.96 – $187.60
Typical copayment $35.59 (range $15.74 – $46.90)
Most-billed visit code 99204
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
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.

Referred Medical Equipment & Supplies CMS DME claims 9

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
10 suppliers28 claims52 services$5.07 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
9 suppliers26 claims27 services$0.84 avg. paid by Medicare
Ostomy skin barrier, powder, per oz A4371
DME-Orthotic Devices · category DF010N
2 suppliers11 claims13 services$2.95 avg. paid by Medicare
Enteral feeding supply kit; pump fed, per day, includes but not limited to feeding/flushing syringe, administration set tubing, dressings, tape B4035
Other-Enteral and Parenteral · category OB006N
1 supplier12 claims365 services$4.36 avg. paid by Medicare
Enteral formula, nutritionally complete, for special metabolic needs, excludes inherited disease of metabolism, includes altered composition of proteins, fats, carbohydrates, vitamins and/or minerals, may include fiber, administered through an enteral feeding tube, 100 calories = 1 unit B4154
Other-Enteral and Parenteral · category OB006N
1 supplier12 claims4,201 services$0.55 avg. paid by Medicare
Enteral nutrition infusion pump, any type B9002
Other-Enteral and Parenteral · category OB005N
1 supplier12 claims12 services$53.06 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

DR. MEEI-LING TUNG WU M.D.
Ophthalmology
991 N TUSTIN ST, SUITE 101
ORANGE, CA 92867
Orange County (714) 639-6162
CHIEN-KO WU, M.D. AND MEEI-LING T WU, M.D., INC.
Internal Medicine
991 N TUSTIN ST, SUITE 101
ORANGE, CA 92867
Orange County (714) 639-6162
GRACE T WU MD
Ophthalmology
991 N TUSTIN ST, SUITE 101
ORANGE, CA 92867
Orange County (714) 639-6162

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 Chien-ko Wu's NPI number?

The NPI number for Chien-ko Wu is 1275680829. It was assigned to this individual provider in the NPPES registry on January 5, 2007.

Where is Chien-ko Wu located?

Chien-ko Wu practices at 991 N Tustin St Suite 101, Orange, CA 92867. The listed phone number is (714) 639-6162.

What is Chien-ko Wu's specialty?

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

Is Chien-ko Wu enrolled in Medicare?

Yes. Chien-ko Wu 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 Chien-ko Wu was last updated on July 9, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.