MELISSA ZHENG YAN WU M.D.
NPI 1053585331
Internal Medicine in Los Gatos, CA

NPI Status: Active since April 17, 2008

Contact Information

15215 NATIONAL AVE
SUITE 200
LOS GATOS, CA
ZIP 95032
Phone: (408) 358-1841
Fax: (408) 358-3562

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  • Individual
  • Female
  • Years of Experience 20
  • Internal Medicine
  • Accepts Medicare Approved Payment
  • PECOS Enrolled
  • Medicare Quality Reporting

About MELISSA WU

This page provides the complete NPI Profile along with additional information for Melissa Wu, an internist established in Los Gatos, California with a medical specialization in Internal Medicine and more than 20 years of experience. She graduated from George Washington University School Of Medicine in 2006. The healthcare provider is registered in the NPI registry with number 1053585331 assigned on April 2008. The practitioner's primary taxonomy code is 207R00000X with license number A103411 (CA). The provider is registered as an individual and her NPI record was last updated 15 years ago.

NPI
1053585331
Provider Name
MELISSA ZHENG YAN WU M.D.
Gender
Female
Entity Type
Individual
Location Address
15215 NATIONAL AVE SUITE 200 LOS GATOS, CA 95032
Location Phone
(408) 358-1841
Location Fax
(408) 358-3562
Mailing Address
15215 NATIONAL AVE SUITE 200 LOS GATOS, CA 95032
Mailing Phone
(408) 358-1841
Mailing Fax
(408) 358-3562
Medical School Name
GEORGE WASHINGTON UNIVERSITY SCHOOL OF MEDICINE
Graduation Year
2006
Is Sole Proprietor?
Yes
Enumeration Date
04-17-2008
Last Update Date
10-01-2011
Code Navigator

An internist like Melissa Wu is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.

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Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Internal Medicine

Taxonomy Code
207R00000X
Type
Allopathic & Osteopathic Physicians
License No.
A103411
License State
CA
Taxonomy Description
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.

Medicare Participation & PECOS Enrollment Status

Melissa Wu is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.

Melissa Wu is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • PECOS PAC ID: 8224184007

    What is the PECOS Associate Control ID?
    A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.

  • PECOS Enrollment ID: I20090921000011

    What is the Provider Enrollment ID?
    The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.

  • Accepts Medicare Assignment? Yes

    What does it mean "accepts medicare assignment"?
    When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
    A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

Areas of Expertise

The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.

Administration of influenza virus vaccine

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.

This service was performed 59 times for 58 patients

Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit

An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.

This service was performed 65 times for 65 patients

Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit

An annual wellness visit is a yearly appointment with your doctor to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's an opportunity to discuss your health status and goals and get a plan tailored for you.

This service was performed 12 times for 12 patients

Dxa bone density measurement of hip, pelvis, spine

A DXA bone density measurement is a simple, quick, and non-invasive procedure that assesses the strength of your bones. This test uses X-rays to measure the amount of minerals, mainly calcium, in the hip, pelvis, and spine. It helps in early detection of osteoporosis or other bone diseases.

This service was performed 13 times for 13 patients

Established patient office or other outpatient visit, 20-29 minutes

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.

This service was performed 425 times for 135 patients

Influenza vaccine split virus, preservative free

The Influenza Vaccine Split Virus, preservative-free, is a flu shot to protect against the influenza virus. It is made from parts of inactivated flu viruses and doesn't contain preservatives, reducing potential side effects. It helps your body develop immunity to the flu.

This service was performed 55 times for 54 patients

Insertion of needle into vein for collection of blood sample

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

This service was performed 243 times for 105 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report

An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.

This service was performed 79 times for 75 patients

Telephone medical discussion with physician, 11-20 minutes

This is a service where you have a phone conversation with your doctor for 11-20 minutes. It's used for discussing health concerns, reviewing test results, or managing ongoing conditions. It's a convenient way to receive medical advice without an in-person visit.

This service was performed 37 times for 29 patients

Physician Visit Costs



The typical physician office visit costs for Medicare beneficiaries in this area are: $39.16 for a new patient copayment and $30.44 for an established patient copayment.

The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.

For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.

The prices below reflect the costs for new and established patients in the 95032 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99204

  • Average New Patient Price $156.67
  • Minimum New Patient Price $70.37
  • Maximum New Patient Price $206.04
  • Average New Patient Copayment $39.16
  • Minimum New Patient Copayment $17.59
  • Maximum New Patient Copayment $51.51

Established Patients Visit Costs *

The most utilized procedure code for established patients office visits is 99214

  • Average Established Patient Price $121.77
  • Minimum Established Patient Price $23.96
  • Maximum Established Patient Price $169.6
  • Average Established Patient Copayment $30.44
  • Minimum Established Patient Copayment $5.99
  • Maximum Established Patient Copayment $42.4

* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.

Quality Reporting

The provider participated in CMS Quality Payment Program. The Quality Payment Program aims to improve population health, reduce costs and improve the care received by Medicare beneficiaries. The following quality measures meet Medicare's statistical reporting standards. Not all providers report the same information, because not all providers give the same services to patients. The quality information is just a snapshot of some the care providers give to their patients. Reporting more or less information is not a reflection of quality.

Quality Measure Performance Number of Patients
CDC Training on CDC's Guideline for Prescribing Opioids for Chronic PainYesN/A
Completion of all the modules of the Centers for Disease Control and Prevention (CDC) course “Applying CDC’s Guideline for Prescribing Opioids” that reviews the 2016 “Guideline for Prescribing Opioids for Chronic Pain.” Note: This activity may be selected once every 4 years, to avoid duplicative information given that some of the modules may change on a year by year basis but over 4 years there would be a reasonable expectation for the set of modules to have undergone substantive change, for the improvement activities performance category score.

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NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1053585331, we treat the final digit (1) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 49. The final step is to find the difference between that total and the next multiple of ten (50 - 49 = 1).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
0
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
3
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
8
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
3
Unchanged
Pos 9
3
Doubled → 6
Check
1
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 5 → 10 → 1 5 → 10 → 1 5 → 10 → 1 3 → 6

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 0 + 1 + 0 + 3 + 1 + 0 + 8 + 1 + 0 + 3 + 6 + 24 = 49

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 49 is 50. The difference is the calculated check digit.

50 - 49 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1053585331.

Other Providers at the Same Location


The following 12 providers are registered at the same or a nearby location.

Internal Medicine
15215 NATIONAL AVE, SUITE 200
LOS GATOS, CA 95032
Internal Medicine
15215 NATIONAL AVE, SUITE #200
LOS GATOS, CA 95032
Internal Medicine
15215 NATIONAL AVE, SUITE 200
LOS GATOS, CA 95032
Clinic/Center (Primary Care)
15215 NATIONAL AVE, STE 101
LOS GATOS, CA 95032
Physical Therapist
15215 NATIONAL AVE, SUITE 100A
LOS GATOS, CA 95032
Internal Medicine
15215 NATIONAL AVE, # 200
LOS GATOS, CA 95032
Internal Medicine
15215 NATIONAL AVE, #200
LOS GATOS, CA 95032
Internal Medicine (Endocrinology, Diabetes & Metabolism)
15215 NATIONAL AVE, SUITE 103
LOS GATOS, CA 95032
Physical Therapist
15215 NATIONAL AVE, 100
LOS GATOS, CA 95032
Clinic/Center (Primary Care)
15215 NATIONAL AVE, STE 104
LOS GATOS, CA 95032
Physical Therapist
15215 NATIONAL AVE, SUITE 100A
LOS GATOS, CA 95032
Internal Medicine (Geriatric Medicine)
15215 NATIONAL AVE, #200
LOS GATOS, CA 95032

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1053585331, enumerated as an "individual" on April 17, 2008.

The provider is located at 15215 NATIONAL AVE SUITE 200 LOS GATOS, CA 95032 and the phone number is (408) 358-1841.

Internal Medicine with taxonomy code 207R00000X.