NADIM T ZYADEH (MD) – Gastroenterology Physician, NPI 1609877935
Gastroenterology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
431 GASTROENTEROLOGY in AZ
Loading map...
Provider Addresses for NADIM T ZYADEH (MD)
PO BOX 27340
PHOENIX, AZ 850617340
Phone: (602) 943-9200
Fax: (602) 216-3026
Type: Mailing
5815 N BLACK CANYON HWY STE 101
PHOENIX, AZ 850152200
Phone: (602) 973-6666
Fax: (602) 812-3395
Type: Mailing
Adult & Pediatric Allergy Associates, 2236, West Bethany Home Road, Alhambra, Phoenix, Maricopa County, Arizona, 5015, United States
SUITE 2
PHOENIX, AZ 850151934
Phone: (602) 943-6666
Fax: (602) 242-9220
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
Loading prescription activity...
Open Payments (CMS)
CMS reports 72 Open Payments records for all available years, with a total value of $1,571.
Total Amount is formed as General ($1,571) + Research ($0) + Ownership ($0) = $1,571.
Last reported payment date: 2024-12-05 • Largest payer in this snapshot: ABBVIE INC. ($402).
Total Amount
$1,571
General + Research + Ownership
Payments
72
Total payment records
General Amount
$1,571
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-05
Latest reported date
Top Companies
Largest payers in this snapshot
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: 2007-10-04
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 |
|---|---|---|---|---|
| I20071004000868 | I | Gastroenterology | AZ | 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 |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 54 | 30 | $0 |
| 99203 | New patient office or other outpatient visit, 30-44 minutes | 33 | 33 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 24 | 21 | $0 |
| 43239 | Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 16 | 16 | $0 |
Insurance plans in this area (ZIP 85061)
Loading plans...
Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| GASTROENTEROLOGY | AZ | 45385 | Removal of polyps or growths of large bowel using an endoscope | 13 | 13 |
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.