Physician Profile
Sydney A. Westphal, MD
Unclaimed ProfileAbout Dr. Westphal
Sydney A. Westphal, MD is a healthcare provider in Scottsdale, AZ specializing in endocrinology, diabetes & metabolism. Sydney trained at University of Cincinnati College of Medicine, graduating in 1983. Sydney is also listed as specializing in internal medicine. According to Medicare claims data, Sydney cared for 1,101 Medicare patients across 14,783 services. The services billed most often include injection, vedolizumab, intravenous, 1 mg, injection, romosozumab-aqqg, 1 mg, and injection, denosumab, 1 mg.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (480) 301-8000
- Email not available
Practice Locations
13400 E SHEA BLVD
Scottsdale, AZ 85259
Conditions Commonly Evaluated or Treated
Within Endocrinology, Diabetes and Metabolism generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
- Diabetes
- Hyperthyroidism
- Hypothyroidism
- Obesity
- Osteoporosis
- PCOS
- Thyroid problems
Adrenal
Adrenal disorders
- Adrenal Fatigue
- Adrenal gland tumor
- Adrenal mass
- Cushing's Syndrome
Blood sugar disorders
- Diabetic neuropathy
- Gestational diabetes
- Low Blood Sugar
- Prediabetes
Bone and calcium disorders
- High calcium
- Low Calcium
- Vitamin D deficiency
Bones
- Soft Bones
Diabetes
- Dangerous high blood sugar
- Diabetic retinopathy
- Kidney disease from diabetes
Endocrine tumors
Hormone disorders
- Early or delayed puberty
- Excess facial or body hair
- Gynecomastia
- Perimenopause
- Testosterone deficiency
Hormones
Metabolic disorders
Metabolism
Parathyroid
Pituitary
- Acromegaly
- Adult Growth Hormone Deficiency
- Underactive Pituitary Gland
Pituitary disorders
- Extreme Thirst and Urination
- High Prolactin
- Pituitary Tumor
- Short stature and growth concerns
Thyroid
- Thyroiditis
Thyroid disorders
- Goiter
- Graves' Disease
- Hashimoto's Disease
- Thyroid cancer
- Thyroid eye disease
- Thyroid nodules
Procedures & services
Most searched procedures
- Hormone replacement therapy
- Insulin pump management
- Thyroid ultrasound
- Weight loss management
Adrenal
- 24-Hour Urine Cortisol Test
- Aldosterone and Renin Blood Test
- Urine Metanephrines Test
Adrenal evaluations
- Adrenal Gland Suppression Test
- Cortisol Testing
Blood sugar management
- Continuous Glucose Monitor Placement
- Diabetes Screening and A1C Test
- Glucose screening test
Bone evaluations
- Bone Density Scan Referral
- Parathyroid Hormone Test
Bone treatments
- Bisphosphonate Infusion for Bones
- Bone Building Injections
Diabetes
- Automated Insulin System Setup
- Blood Ketone Monitoring
- C-Peptide Test
- Continuous Glucose Monitor Data Review
- Medical nutrition therapy
- Starting Insulin Therapy
Diabetes education
- Diabetes Self-Management Education
Diabetes preventive care
Genetic evaluations
- Genetic Testing for Endocrine Tumors
Hormone treatments
- Estrogen and Progesterone Therapy
- Growth Hormone Injections
- Hormone Replacement Therapy Consultation
Hormones
- Gender-affirming care consultation
Metabolic evaluations
- Cholesterol and Lipid Blood Panel
Metabolism
- Fasting Insulin Test
Parathyroid
- Parathyroid Scan
Pituitary
- Growth Hormone Stimulation Test
Pituitary evaluations
- Prolactin Blood Test
- Water Deprivation Test
Thyroid
- Thyroid Cyst Alcohol Ablation
- Thyroid Uptake and Scan
Thyroid procedures
- Radioactive Iodine Treatment
- Thyroid Antibody Testing
- Thyroid Blood Test
- Thyroid Medication Adjustment
- Thyroid Nodule Biopsy
- Thyroid Nodule Radiofrequency Ablation
Weight & Metabolism
- Weight loss medication consult
Procedures Most Often Billed to Medicare
14,783 services · 1,101 patients · 18 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Collection of blood sample from implanted device | Procedure | 36591 |
39 | Too few peers to compare |
| Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less | Treatment | 96365 |
101 | More than most peers in Endocrinology, Diabetes &… |
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
75 | As often as other peers in Endocrinology, Diabetes &… |
| Injection of drug or substance into vein | Treatment | 96374 |
23 | Too few peers to compare |
| Administration of chemotherapy into vein, 1 hour or less | Treatment | 96413 |
19 | Too few peers to compare |
| Injection, vedolizumab, intravenous, 1 mg | Drug given | J3380 |
6,600 | Too few peers to compare |
| Injection, romosozumab-aqqg, 1 mg | Drug given | J3111 |
4,200 | Less often than most peers in Endocrinology, Diabetes &… |
| Injection, denosumab, 1 mg | Drug given | J0897 |
2,760 | As often as other peers in Endocrinology, Diabetes &… |
| Injection, zoledronic acid, 1 mg | Drug given | J3489 |
105 | As often as other peers in Endocrinology, Diabetes &… |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
229 | As often as other peers in Endocrinology, Diabetes &… |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Related specialists at this location 3
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other endocrinologists in Scottsdale 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at University of Cincinnati College of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1983 at University of Cincinnati College of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Collection of blood sample from implanted device 8
Providers in AZ who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Westphal?
Dr. Westphal is an endocrinologist in Scottsdale, AZ. That is the designation recorded for this NPI in the federal registry, where it is listed as “Endocrinology, Diabetes & Metabolism”.
NPI registry
What is Dr. Westphal's address?
Dr. Westphal is listed at 13400 E Shea Blvd, Scottsdale, AZ 85259. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Westphal?
The number on file is (480) 301-8000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Westphal's NPI number?
Dr. Westphal's National Provider Identifier is 1083651830. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Westphal train?
Dr. Westphal attended University of Cincinnati College of Medicine, graduating in 1983. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Westphal been practicing?
Dr. Westphal has 43 years experience. Calculated from a graduation year of 1983, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Westphal perform?
According to Medicare billing data, Dr. Westphal performs procedures including collection of blood sample from implanted device; provides treatments such as infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less and injection of drug or substance under skin or into muscle, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Westphal confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Westphal. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.