JOELLEN LEE VANZANDER (MD) – Dermatology Physician, NPI 1881819019
Dermatology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
2,141 DERMATOLOGY in CA
Provider Addresses for JOELLEN LEE VANZANDER (MD)
321 MIDDLEFIELD RD STE 260
MENLO PARK, CA 940254010
Phone: (650) 498-6500
Type: Location
321 MIDDLEFIELD RD
MENLO PARK, CA 940253500
Phone: (650) 498-6500
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 2 Open Payments records for all available years, with a total value of $96.
Total Amount is formed as General ($96) + Research ($0) + Ownership ($0) = $96.
Last reported payment date: 2023-10-19 • Largest payer in this snapshot: PFIZER INC. ($96).
Total Amount
$96
General + Research + Ownership
Payments
2
Total payment records
General Amount
$96
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-10-19
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| PFIZER INC. | $96 |
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: 2010-08-24
PECOS data refreshed: 2026-06-15
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 |
|---|---|---|---|---|
| I20100824000192 | I | Dermatology | 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 |
|---|---|---|---|---|
| 17003 | Destruction of precancer skin growth, 2-14 growths | 830 | 189 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 515 | 383 | $0 |
| 17000 | Destruction of precancer skin growth, 1 growth | 402 | 282 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 318 | 252 | $0 |
| 11102 | Biopsy of related skin growth, first growth | 225 | 196 | $0 |
Insurance plans in this area (ZIP 94025)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | CA | |
| - | CA | |
| - | CA | |
| E N D O C R I N O L O G Y | CA | |
| - | CA | |
| Family Practice | CA | |
| - | CA | |
| - | CA | |
| - | CA | |
| - | CA |
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