WILLIAM P. MULDOWNEY (MD) – Internal Medicine Physician, NPI 1417034356
Internal Medicine Physician
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Doctor Profile
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Profile Insights
NPPES metrics only — not quality of care.
1,404 NEPHROLOGY in CA
Provider Addresses for WILLIAM P. MULDOWNEY (MD)
325 DISTEL CIR
LOS ALTOS, CA 940221408
Phone:
Type: Mailing
701 E EL CAMINO REAL
MOUNTAIN VIEW, CA 940402833
Phone: (650) 934-7808
Type: Location
Harrison Street, Chinatown, Oakland, Alameda County, California, 94607, United States
OAKLAND, CA 946123466
Phone: (510) 625-6262
Type: Mailing
B06 Conference Room, 710, Lawrence Expressway, Santa Clara, Santa Clara County, California, 95014-0721, United States
SANTA CLARA, CA 950515173
Phone: (408) 851-1000
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 1 Open Payments records for all available years, with a total value of $116.
Total Amount is formed as General ($116) + Research ($0) + Ownership ($0) = $116.
Last reported payment date: 2024-06-05 • Largest payer in this snapshot: UCB, Inc. ($116).
Total Amount
$116
General + Research + Ownership
Payments
1
Total payment records
General Amount
$116
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-06-05
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| UCB, Inc. | $116 |
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: 2010-12-07
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 |
|---|---|---|---|---|
| I20101207000944 | 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 |
|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 67 | 66 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 24 | 24 | $0 |
| G0439 | Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 11 | 11 | $0 |
Insurance plans in this area (ZIP 94022)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | CA | |
| Nephrology, Internal Medicine | CA | |
| Nephrology, Internal Medicine | CA | |
| Registered Dietitian Or Nutrition Professional | CA | |
| Internal Medicine, Nephrology | CA | |
| - | CA | |
| Nephrology, Internal Medicine | CA | |
| Nephrology, Internal Medicine | CA | |
| - | CA | |
| Physician Assistant | CA |
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