Sydney A Westphal, MD
Endocrinology, Diabetes & Metabolism
Sydney A Westphal is an Endocrinology, Diabetes & Metabolism specialist based in Scottsdale, AZ with over 43 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
Also practices: INTERNAL MEDICINE
Sydney a Westphal, MD has practiced internal medicine for 43+ years, working in group practice. Trained at University of Cincinnati College of Medicine (class of 1983), she has been practicing for over 43 years. Among her Medicare patients, common conditions include high cholesterol, hypertension, and arthritis (per CMS data). CMS MIPS quality score: 78.59/100 (2023).
At a glance
- Federal MIPS score higher than 29% of MIPS-scored doctors in Arizona
- Virtual visits available — no app or travel required
Older · 2082dNPPES updated 2020-09-09 · verify NPI on CMS · Verify license at Arizona Medical Board
How Does This Doctor Compare?
MIPS Score
202378.59/100
Arizona avg: 77.5 · US avg: 83.6
⚠ Lower than most doctors nationally(-5 pts)
How the government rates this doctor's Medicare care quality. Scores above 75 are considered good.
Generic Rx
↑ Higher = better50.8%
Arizona avg: 84.7 · US avg: 82.8
⚠ Lower than most doctors nationally(-32 pts)
How often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
849
Unique beneficiaries
High volumePrescription Recipients
240
Patients prescribed
Prescriptions Written
726
Total claims
Total Medicare drug cost: $442k
Percentile rankings compared against 1,247 reporting peers in Arizona.
Data Note: Sourced from CMS Medicare Provider Utilization & Payment Data. Percentile rankings compare this provider against all peers with reported data in the same state. Updated annually to reflect the latest federal reporting cycle.
What This Doctor Treats Most
Based on Medicare claims data — here's what patients commonly see this doctor for
Based on Medicare data, this doctor primarily manages High Cholesterol, Hypertension, and Arthritis.
Elevated cholesterol or triglycerides that increase heart disease risk
US avg: 70.4%↑ More patients than average (+5%) — a focus area for this doctor
High blood pressure — a leading risk factor for heart disease and stroke
US avg: 70.2%↑ More patients than average (+4%) — a focus area for this doctor
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↓ Fewer patients than average (-1%) — less common here
Weakened bones that are more prone to fractures, common in older adults
US avg: 18.1%↑ More patients than average (+24%) — a focus area for this doctor
A condition where the body cannot properly regulate blood sugar levels
US avg: 34.5%↑ More patients than average (+5%) — a focus area for this doctor
Gradual loss of kidney function over time, often linked to diabetes or hypertension
US avg: 29.6%↑ More patients than average (+8%) — a focus area for this doctor
Reduced blood flow to the heart muscle, commonly known as coronary artery disease
US avg: 31.7%↓ Fewer patients than average (-3%) — less common here
Excessive worry or fear that interferes with daily life
US avg: 34.1%↓ Fewer patients than average (-8%) — less common here
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
$15 received from industry
1 transaction reported in 2024 ·Low tier
Payments include consulting fees, speaking honoraria, food & beverage, travel, research support, and ownership interests from drug and medical device manufacturers. Disclosure is required by the federal Physician Payments Sunshine Act. These payments do not necessarily indicate conflicts of interest. National median: $338 across 136 000 tracked providers.
Tiers — Low: under $500 · Moderate: $500-5 000 · High: $5 000-25 000 · Very High: $25 000+. Source: CMS Open Payments 2024, attributed to Sydney a Westphal's NPI.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 1983
University of Cincinnati College of Medicine
Board certified · Sep 8, 2020
Self-reported via NPPES
43 years in practice
Senior practitioner
Endocrinologists treat hormonal and metabolic disorders including diabetes (type 1 and 2), thyroid disease, osteoporosis, adrenal disorders, pituitary conditions, and polycystic ovary syndrome (PCOS).
Taxonomy: 207RE0101X
Education & Training
University of Cincinnati College of Medicine (Class of 1983)
Primary hospital affiliation: Acute Care Hospitals
CMS Certification Number: 100068
View hospital on Medicare Care CompareVirtual Endocrinology, Diabetes & Metabolism Care With Sydney a Westphal
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Sydney a Westphal for cholesterol management, blood pressure monitoring, arthritis follow-ups — no travel to Scottsdale required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes. Medicare enrolled per CMS records.
Frequently Asked Questions
Common questions about Sydney a Westphal
NPI records show Dr. Westphal as active with telehealth listed in Scottsdale, AZ. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (480) 301-8000.
Sourced from CMS NPPES · OIG LEIE · CMS QPP 2023 · CMS Medicare Part D · CMS Open Payments 2024 · CMS Physician Comparator. See Data Methodology.
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Contact Sydney a Westphal
Practice Location
13400 E Shea Blvd, Scottsdale, AZ 85259-5404
Mailing Address
13400 E Shea Blvd, Scottsdale, AZ 85259-5404
This is a provider directory. Contact the office directly to schedule appointments.
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