Doctor profile · Federal record
Dr. Arley Diaz, MD
Nephrology Physician (CMS: Nephrology) · Nephrology Physician · West Springfield, MA
- NPI 1093706525
- Accepts Medicare
- 32 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
134 Capital Dr Ste E
West Springfield, MA 010891320
(413) 733-0010
fax (413) 417-2978 - Mailing address
-
Po Box 366
Ludlow, MA 010560366
Credentials & registration
- NPI registered
- November 2005 — 21 yrs on file
- Profile last updated
- January 11, 2022
- Year of graduation
- 1994 — 32 yrs since
- Specialty taxonomy
- 207RN0300X — NUCC code
- State licenses (2)
- Massachusetts #207657 · Connecticut #042575
- Medicaid (2)
- CT #003138874 · MA #110001613A
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1093706525. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
3,512
Distinct HCPCS
10
Medicare allowed
$332,809
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
Q5106 |
Injection, epoetin alfa-epbx, biosimilar, (retacrit) (for non-esrd use), 1000 units | 828 | 11 | $8 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 625 | 397 | $108 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 518 | 199 | $80 | |
90960 |
Dialysis services, 4 or more physician visits per month (20 years or older) | 288 | 43 | $355 | |
85018 |
Blood count, hemoglobin | 228 | 11 | $2 | |
96372 |
Injection of drug or substance under skin or into muscle | 223 | 11 | $15 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 210 | 84 | $120 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 158 | 146 | $175 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 114 | 114 | $170 | |
90935 |
Hemodialysis procedure with physician evaluation | 82 | 29 | $72 |
In context: peer comparison
Among 4 peers in this city , average services per provider: 268. This provider delivers 13× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
1,741
Patients
470
Total drug cost
$137,464
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Calcitriol | Generic | 283 | 63 | $4,665 |
| Doxazosin Mesylate | Generic | 185 | 46 | $5,118 |
| Lisinopril | Generic | 159 | 49 | $1,490 |
| Carvedilol | Generic | 122 | 34 | $1,614 |
| Furosemide | Generic | 121 | 35 | $1,275 |
| Jardiance (Empagliflozin) | Brand | 119 | 21 | $93,607 |
| Nifedipine Er (Nifedipine) | Brand | 108 | 27 | $5,313 |
| Allopurinol | Generic | 106 | 31 | $1,385 |
| Amlodipine Besylate | Generic | 95 | 34 | $795 |
| Losartan Potassium | Generic | 87 | 22 | $1,699 |
Hospital affiliations
Frequently asked questions
What is Dr. Arley Diaz's medical specialty?
Dr. Arley Diaz practices Nephrology Physician in West Springfield, MA.
Where does Dr. Arley Diaz practice?
Dr. Arley Diaz practices at 134 Capital Dr Ste E, West Springfield, MA 010891320. Office phone: 4137330010.
What is Dr. Arley Diaz's NPI?
Dr. Arley Diaz's National Provider Identifier (NPI) is 1093706525, issued by NPPES.
Does Dr. Arley Diaz accept Medicare assignment?
Yes. Dr. Arley Diaz accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Arley Diaz commonly perform?
Top Medicare-reported procedures in 2023: Injection, epoetin alfa-epbx, biosimilar, (retacrit) (for non-esrd use), 1000 units (HCPCS Q5106); Established patient office or other outpatient visit (HCPCS 99214); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.