FIONA YUEN M.D.
NPI 1649513599
Internal Medicine - Endocrinology, Diabetes & Metabolism in Walnut Creek, CA

Q: What is Fiona Yuen's NPI number?

The NPI number for Fiona Yuen is 1649513599. It was assigned to this individual provider in the NPPES registry on March 28, 2013.

Q: What is Fiona Yuen's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Q: When was this NPI record last updated?

The NPPES record for Fiona Yuen was last updated on November 20, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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 March 28, 2013PECOS EnrolledAccepts Medicare Assignment

85.73/100

CMS Quality Rating

1450 TREAT BLVD # 200, WALNUT CREEK, CA 94597(925) 296-9702 Get Directions Write a Review

NPPES record last updated: November 20, 2023. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Nov 20, 2023, Jul 26, 2022, Sep 30, 2016 (3 updates tracked since 2016).

On this page

About Fiona Yuen M.d. NPPES

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

FIONA YUEN M.D. (NPI 1649513599) is an individual endocrinology, diabetes & metabolism provider in Walnut Creek, California, licensed in California (A133721) and active in the NPI registry since March 2013. She is enrolled in Medicare PECOS, maintains a secondary practice location in Brentwood, and is a graduate of Other (2013).

NPPES Registry Identity

NPI1649513599

Entity TypeIndividualFemale

Primary Taxonomy207RE0101X

Provider Legal NameFIONA YUENCredential: M.D.

Location Address1450 TREAT BLVD # 200Walnut Creek, CA 94597-2168

Mailing Address1450 Treat Blvd # 300Walnut Creek, CA 94597-2168 · (925) 952-2828

Phone(925) 296-9702

Sole ProprietorNo

Medical School CMSOtherGraduated 2013

Enumeration DateMarch 28, 2013

Last NPPES UpdateNovember 20, 20233 updates tracked since enumeration

NPPES CertifiedNovember 20, 2023

✔ NPI 1649513599 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians

Taxonomy Code207RE0101X

License✔ Licensed in CA · A133721

Definition

An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.

1450 TREAT BLVD # 200, Walnut Creek, CA 94597

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Secondary Practice Location 1

Location 12400 Balfour Rd Ste 201Brentwood, CA 94513-4952 · Phone (925) 308-8112

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

Fiona Yuen 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 ID840543898

PECOS Enrollment IDI20220706000526

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 11

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.

Injection, romosozumab-aqqg, 1 mg J3111

Romosozumab-aqqg is a medication given by injection to treat osteoporosis in patients at high risk for fractures. It works by increasing bone mass and strength, reducing the risk of fractures.

15,960 services15 patients

Injection, denosumab, 1 mg J0897

Denosumab is a medication given via injection to strengthen your bones. It works by slowing down the cells that break down bone, improving bone density and reducing the risk of fractures. It's often used for osteoporosis treatment.

8,222 services87 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.

758 services436 patients

Injection of drug or substance under skin or into muscle 96372

This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.

220 services102 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.

180 services180 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.

132 services113 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94597 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

$153.83 typical visit price

range $69.00 – $202.35

Typical copayment $38.45 (range $17.25 – $50.58)

Most-billed visit code 99204

Established Patient

$119.48 typical visit price

range $23.44 – $166.46

Typical copayment $29.87 (range $5.86 – $41.61)

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.

85.73/100

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

Scored as part of a group practice

Quality

82.68

Promoting Interoperability

Improvement Activities

Cost

70.58

Reported Quality Measures

Appropriate Use of DXA Scans in Women Under 65 Years Who Do Not Meet the Risk Factor Profile for Osteoporotic Fracture

Lower rates are better for this measure.

21%58 patients

Breast Cancer Screening

89%432 patients4/55-star benchmark: 93%

Cervical Cancer Screening

70%397 patients3/55-star benchmark: 98%

Colorectal Cancer Screening

70%758 patients4/55-star benchmark: 88%

Controlling High Blood Pressure

84%559 patients4/55-star benchmark: 91%

Coronary Artery Disease (CAD): Beta-Blocker Therapy Prior Myocardial Infarction (MI) or Left Ventricular Systolic Dysfunction (LVEF <= 40%)

95%21 patients4/55-star benchmark: 99%

Diabetes: Eye Exam

36%453 patients2/55-star benchmark: 100%

Diabetes: Hemoglobin A1c (HbA1c) Poor Control (>9%)

Lower rates are better for this measure.

26%453 patients4/55-star benchmark: 91%

Documentation of Current Medications in the Medical Record

93%2,889 patients4/55-star benchmark: 100%

e-Prescribing

100%516 patients5/55-star benchmark: 100%

Falls: Screening for Future Fall Risk

66%733 patients3/55-star benchmark: 100%

HIV Screening

35%723 patients3/55-star benchmark: 60%

Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan

58%1,256 patients3/55-star benchmark: 98%

Preventive Care and Screening: Screening for Depression and Follow-Up Plan

53%889 patients3/55-star benchmark: 97%

Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention

Patients combinedPopulations: 95% · 789 patients

Patients screened: 97% · 789 patients

32%25 patients2/55-star benchmark: 100%

Provide Patients Electronic Access to Their Health Information

100%716 patients5/55-star benchmark: 100%

Statin Therapy for the Prevention and Treatment of Cardiovascular Disease

84%766 patients4/55-star benchmark: 91%

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.

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.

Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553

DME-Other DME · category DE017N

4 suppliers38 claims38 services$176.70 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 6

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

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