NIELSEN QUIMAIRA FERNANDEZ-BECKER M.D., PH.D.
NPI 1972678639
Internal Medicine - Gastroenterology in Palo Alto, CA

Q: What is Nielsen Fernandez-becker's NPI number?

The NPI number for Nielsen Fernandez-becker is 1972678639. It was assigned to this individual provider in the NPPES registry on November 21, 2006. The provider is also known as Dr. Nielsen Quimaira Fernandez M.D.,ph.D.

Q: What is Nielsen Fernandez-becker's specialty?

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

Active since November 21, 2006PECOS EnrolledAccepts Medicare Assignment

76.5/100

CMS Quality Rating

300 PASTEUR DR, PALO ALTO, CA 94304(650) 723-4000(650) 723-8305 Get Directions Write a Review

NPPES record last updated: April 29, 2024. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Apr 29, 2024, Sep 20, 2016 (2 updates tracked since 2016).

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About Nielsen Quimaira Fernandez-becker M.d., Ph.d. NPPES

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

NIELSEN QUIMAIRA FERNANDEZ-BECKER M.D., PH.D. (NPI 1972678639) is an individual gastroenterology provider in Palo Alto, California, licensed in California (A109586) and active in the NPI registry since November 2006. She is enrolled in Medicare PECOS and is a graduate of Albert Einstein College Of Medicine Of Yeshiva University (2002).

NPPES Registry Identity

NPI1972678639

Entity TypeIndividualFemale

Primary Taxonomy207RG0100X

Provider Legal NameNIELSEN QUIMAIRA FERNANDEZ-BECKERCredential: M.D., PH.D.

Location Address300 PASTEUR DRPalo Alto, CA 94304-2203

Mailing Address300 Pasteur DrPalo Alto, CA 94304-2203 · (650) 723-4000 · Fax (650) 723-8305

Phone(650) 723-4000

Fax(650) 723-8305

Sole ProprietorNo

Medical School CMSAlbert Einstein College Of Medicine Of Yeshiva UniversityGraduated 2002

Enumeration DateNovember 21, 2006

Last NPPES UpdateApril 29, 20242 updates tracked since enumeration

NPPES CertifiedApril 29, 2024

✔ NPI 1972678639 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

License✔ Licensed in CA · A109586

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.

300 PASTEUR DR, Palo Alto, CA 94304

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Other Names 1

Former Name (1)Dr. Nielsen Quimaira Fernandez M.d.,ph.d

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

Nielsen Quimaira Fernandez-becker M.d., Ph.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 ID7911046701

PECOS Enrollment IDI20091208000632

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 15

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 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.

70 services62 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

51 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.

49 services47 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.

45 services45 patients

Study of esophagus to assess movement 91010

This procedure, known as esophageal manometry, involves studying the esophagus or food pipe to evaluate its movement and pressure. It helps understand how well the esophagus can move food to the stomach. Involving a thin, flexible tube, it's a safe, minimally invasive test.

44 services44 patients

Monitoring and recording of esophageal function through nasal tube with electrode 91037

This procedure involves placing a thin tube with an electrode through your nose and into your esophagus. It helps to monitor and record the function of your esophagus, aiding in diagnosing any potential issues.

41 services41 patients

Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito G0500

Moderate sedation is a method where a physician uses medication to help you relax during a gastrointestinal endoscopy. An independent trained observer will be present to monitor your vital signs and ensure your safety throughout the procedure. It's a common and safe practice.

39 services39 patients

Measurement of hydrogen in breath to test for stomach and bowel symptoms 91065

This test involves breathing into a bag to measure hydrogen levels in your breath. High levels can indicate issues with food digestion or absorption in your stomach or intestines. It's non-invasive, painless, and helps diagnose certain gastrointestinal conditions.

35 services18 patients

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.

34 services34 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.

31 services31 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.

25 services25 patients

Monitoring and recording of esophageal function through a capsule attached to the esophagus wall 91035

This procedure involves a small capsule being attached to your esophagus wall. It measures and records how your esophagus is functioning, helping to identify any potential issues. You won't feel the capsule and it will pass naturally through your system after a few days.

23 services23 patients

Imaging of digestive tract done from the inside of the digestive tract 91110

This procedure, known as an endoscopy, involves a small camera being passed into the digestive tract. It helps doctors to see the inside of your digestive system in detail. This can aid in diagnosing conditions or planning treatments. It's generally safe and can provide valuable information.

20 services20 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.

15 services15 patients

Prolonged monitoring and recording of esophageal function through nasal tube with electrode 91038

This procedure involves the insertion of a thin, flexible tube through the nose into the esophagus. An electrode on the tube records esophageal activity over an extended period, helping to identify any functional issues.

13 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94304 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.

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.

76.5/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

74.31

Promoting Interoperability

100

Improvement Activities

Cost

43.95

Referred Medical Equipment & Supplies CMS DME claims

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

Enteral formula, nutritionally complete, calorically dense (equal to or greater than 1.5 kcal/ml) with intact nutrients, includes proteins, fats, carbohydrates, vitamins and minerals, may include fiber, administered through an enteral feeding tube, 100 calories = 1 unit B4152

Other-Enteral and Parenteral · category OB006N

1 supplier11 claims5,158 services$0.27 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 20

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

PAUL DAVID MARTIN M.D.

Anesthesiology

300 PASTEUR DR
PALO ALTO, CA 94304

Santa Clara County (650) 723-4000

IRENE H JUN MD

Pediatrics

300 PASTEUR DR, SUMC - PEDS PHYSICIAN BILLING MC: 5530
PALO ALTO, CA 94304

Santa Clara County (465) 049-8739

DR. DEBORAH DEE SANDERSON PHYSICAL THERAPIST

Physical Therapist

300 PASTEUR DR
PALO ALTO, CA 94304

Santa Clara County (650) 723-6701

DR. MOLLY TIMMERMAN DO

Physical Medicine & Rehabilitation

300 PASTEUR DR
PALO ALTO, CA 94304

Santa Clara County (650) 723-2206

ANDREW KEES ROORDA M.D.

Internal Medicine (Gastroenterology)

300 PASTEUR DR
PALO ALTO, CA 94304

Santa Clara County (304) 293-4123

DR. CATHERINE SHARMAN REID MD

Anesthesiology

300 PASTEUR DR, DEPARTMENT OF ANESTHESIA, H3580
PALO ALTO, CA 94304

Santa Clara County (650) 723-7377

DR. ZINA SEMENOVSKAYA MD

Emergency Medicine

300 PASTEUR DR
PALO ALTO, CA 94304

Santa Clara County (718) 836-6600

JULIE G REED R.N.

Nurse Practitioner (Pediatrics)

300 PASTEUR DR
PALO ALTO, CA 94304

Santa Clara County (650) 723-4000

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 Nielsen Fernandez-becker's NPI number?

The NPI number for Nielsen Fernandez-becker is 1972678639. It was assigned to this individual provider in the NPPES registry on November 21, 2006. The provider is also known as Dr. Nielsen Quimaira Fernandez M.D.,ph.D.

Where is Nielsen Fernandez-becker located?

Nielsen Fernandez-becker practices at 300 Pasteur Dr, Palo Alto, CA 94304. The listed phone number is (650) 723-4000.

What is Nielsen Fernandez-becker's specialty?

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

Is Nielsen Fernandez-becker enrolled in Medicare?

Yes. Nielsen Fernandez-becker 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 Nielsen Fernandez-becker was last updated on April 29, 2024. NPI Profile syncs with the weekly NPPES data releases published by CMS.