DR. DAVID S. NAMAZY (M.D.) – Nephrology Physician, NPI 1477558013
Nephrology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,404 NEPHROLOGY in CA
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Provider Addresses for DR. DAVID S. NAMAZY (M.D.)
7910, Frost Street, Serra Mesa, San Diego, San Diego County, California, 92123, United States
STE 220
SAN DIEGO, CA 921232771
Phone: (858) 637-4700
Fax: (858) 637-4701
Type: Location
9610, Granite Ridge Drive, San Diego, San Diego County, California, 92123, United States
STE B
SAN DIEGO, CA 921232684
Phone: (858) 499-1900
Fax: (858) 268-1911
Type: Mailing
4225 EXECUTIVE SQ STE 450
LA JOLLA, CA 920378411
Phone: (858) 810-8000
Fax: (858) 268-1911
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 8 Open Payments records for all available years, with a total value of $4,131.
Total Amount is formed as General ($4,131) + Research ($0) + Ownership ($0) = $4,131.
Last reported payment date: 2024-06-29 • Largest payer in this snapshot: Medtronic, Inc. ($3,866).
Total Amount
$4,131
General + Research + Ownership
Payments
8
Total payment records
General Amount
$4,131
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-06-29
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Medtronic, Inc. | $3,866 |
| Genentech, Inc. | $128 |
| AstraZeneca Pharmaceuticals LP | $106 |
| Fresenius USA Marketing, Inc. | $22 |
| Travere Therapeutics, Inc. | $9 |
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: 2004-10-25
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 |
|---|---|---|---|---|
| I20041025000878 | I | Nephrology | CA | 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 |
|---|---|---|---|---|
| 99152 | Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes | 331 | 257 | $0 |
| 36902 | Insertion of needle and/or tube into hemodialysis circuit and balloon dilation of dialysis segment with review by radiologist | 319 | 257 | $0 |
| 75710 | Review by radiologist of arm or leg artery image | 170 | 126 | $0 |
| 36215 | Insertion of tube into chest or arm artery, each first order branch | 167 | 124 | $0 |
| 90960 | Dialysis services, 4 or more physician visits per month (20 years or older) | 144 | 22 | $0 |
Insurance plans in this area (ZIP 92123)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| NEPHROLOGY | CA | 93971 | Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers | 22 | 22 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Cardiovascular Disease (Cardiology) | CA | |
| N E U R O S U R G E R Y | CA | |
| - | CA | |
| Internal Medicine | CA | |
| General Surgery | CA | |
| Nephrology, Internal Medicine | CA | |
| P S Y C H I A T R Y | CA | |
| Internal Medicine | TX | |
| Cardiovascular Disease (Cardiology), Internal Medicine | CA | |
| H E M A T O L O G Y | CA |
Reviews
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