DR. ARLEY DIAZ (MD) – Nephrology Physician, NPI 1093706525
Nephrology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
458 NEPHROLOGY in MA
Loading map...
Provider Addresses for DR. ARLEY DIAZ (MD)
2150, Main Street, Metro Center, North End, Springfield, Hampden County, Massachusetts, 01107, United States
SPRINGFIELD, MA 011043566
Phone: (413) 733-0010
Fax: (413) 930-2108
Type: Location
PO BOX 366
LUDLOW, MA 010560366
Phone: (413) 733-0010
Fax: (413) 930-2108
Type: Mailing
134 CAPITAL DR STE E
WEST SPRINGFIELD, MA 010891320
Phone: (413) 733-0010
Fax: (413) 417-2978
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
Loading prescription activity...
Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2004-08-13
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20040813000758 | I | Nephrology | MA | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| Q5106 | Injection, epoetin alfa-epbx, biosimilar, (retacrit) (for non-esrd use), 1000 units | 828 | 11 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 625 | 397 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 518 | 199 | $0 |
| 90960 | Dialysis services, 4 or more physician visits per month (20 years or older) | 288 | 43 | $0 |
| 85018 | Blood count, hemoglobin | 228 | 11 | $0 |
Insurance plans in this area (ZIP 01104)
Loading plans...
Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| NEPHROLOGY | MA | 90935 | Hemodialysis procedure with one physician evaluation | 274 | 136 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| General Surgery | MA | |
| - | MA | |
| N E P H R O L O G Y | CT | |
| Internal Medicine | MA | |
| - | MA | |
| - | MA | |
| N E P H R O L O G Y | MA | |
| N E P H R O L O G Y | MA | |
| - | MA | |
| N E P H R O L O G Y | MA |
Reviews
All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.
No reviews yet. Be the first to share your experience — your opinion helps families compare providers.