Doctor profile · Federal record
Dr. Sydney Westphal, MD
Endocrinology, Diabetes & Metabolism Physician (CMS: Endocrinology) · Internal Medicine Physician · Scottsdale, AZ
- NPI 1083651830
- Accepts Medicare
- MIPS 78.6 / 100 · 2023
- 43 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
13400 E Shea Blvd
Scottsdale, AZ 852595404
(480) 301-8000
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- September 9, 2020
- Year of graduation
- 1983 — 43 yrs since
- Specialty taxonomy
- 207RE0101X — NUCC code
- State license (1)
- Arizona #18668
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1083651830. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
8,491
Distinct HCPCS
10
Medicare allowed
$248,442
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
J3380 |
Injection, vedolizumab, 1 mg | 4,500 | 13 | $22 | |
J0897 |
Injection, denosumab, 1 mg | 2,820 | 47 | $23 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 190 | 184 | $123 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 165 | 149 | $88 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 147 | 89 | $77 | |
J3489 |
Injection, zoledronic acid, 1 mg | 110 | 22 | $9 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 108 | 108 | $108 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 80 | 80 | $163 | |
96365 |
Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less | 74 | 48 | $61 | |
96372 |
Injection of drug or substance under skin or into muscle | 64 | 55 | $14 |
In context: peer comparison
Among 8 peers in Scottsdale Endocrinology, Diabetes & Metabolism Physician, average services per provider: 389. This provider delivers 22× the peer median.Open Payments
Industry payments received
All-time total
$15
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Radius Health, INC. | 1 | $14.52 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
511
Patients
168
Total drug cost
$283,940
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Levothyroxine Sodium | Generic | 184 | 66 | $2,746 |
| Ozempic (Semaglutide) | Brand | 38 | 13 | $51,951 |
| Synthroid (Levothyroxine Sodium) | Brand | 37 | 14 | $4,246 |
| Forteo (Teriparatide) | Brand | 36 | 0 | $159,860 |
| Methimazole | Generic | 36 | 13 | $520 |
| Alendronate Sodium | Generic | 33 | 13 | $357 |
| Metformin Hcl | Generic | 25 | 15 | $293 |
| Lantus Solostar (Insulin Glargine,Hum.Rec.Anlog) | Brand | 22 | 11 | $18,593 |
| Hydrocortisone | Generic | 21 | 11 | $1,506 |
| Calcitriol | Generic | 15 | 0 | $625 |
Hospital affiliations
Frequently asked questions
What is Dr. Sydney Westphal's medical specialty?
Dr. Sydney Westphal practices Endocrinology, Diabetes & Metabolism Physician in Scottsdale, AZ.
Where does Dr. Sydney Westphal practice?
Dr. Sydney Westphal practices at 13400 E Shea Blvd, Scottsdale, AZ 852595404. Office phone: 4803018000.
What is Dr. Sydney Westphal's NPI?
Dr. Sydney Westphal's National Provider Identifier (NPI) is 1083651830, issued by NPPES.
Does Dr. Sydney Westphal accept Medicare assignment?
Yes. Dr. Sydney Westphal accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Sydney Westphal commonly perform?
Top Medicare-reported procedures in 2023: Injection, vedolizumab, 1 mg (HCPCS J3380); Injection, denosumab, 1 mg (HCPCS J0897); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.