Joellen Vanzander, MD
NPI 1881819019 · Dermatology Physician · Menlo Park, CA
Enrolled with Medicare as Practitioner - Dermatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joellen Vanzander, MD is a Dermatology Physician provider in Menlo Park, CA (NPI 1881819019).
Provider details
- NPI number
- 1881819019
- Entity type
- Individual
- Primary specialty
- Dermatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A102997 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
2,904 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Destruction of Precancer Skin Growth, 2-14 Growths17003 | 817 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 465 | $152 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 441 | $109 |
| Destruction of Precancer Skin Growth, 1 Growth17000 | 403 | $72 |
| Biopsy of Related Skin Growth, First Growth11102 | 283 | $128 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'S |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ketoconazole | 112 | 69 |
| Clobetasol Propionate | 90 | 62 |
| Fluorouracil | 53 | 52 |
| Triamcinolone Acetonide | 45 | 34 |
| Calcipotriene | 39 | 39 |
| Mupirocin | 27 | 24 |
| Fluocinonide | 22 | 18 |
| Minoxidil | 20 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-04-14
- Last updated
- 2024-04-16
- Certified
- 2024-04-16
Frequently asked questions
- What is Joellen Vanzander's NPI number?
- Joellen Vanzander's National Provider Identifier (NPI) is 1881819019, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joellen Vanzander's specialty?
- Joellen Vanzander is listed in the NPPES registry with a primary specialty of Dermatology Physician (Allopathic & Osteopathic Physicians).
- Where is Joellen Vanzander located?
- Joellen Vanzander's practice location on file with NPPES is 321 Middlefield Rd Ste 260, Menlo Park, CA 94025-4010.
- What is Joellen Vanzander's phone number?
- The practice phone number listed in the NPPES registry for Joellen Vanzander is (650) 498-6500.
- Does Joellen Vanzander accept Medicare?
- Joellen Vanzander is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joellen Vanzander's NPI active?
- Yes — Joellen Vanzander's NPI (1881819019) is active in the NPPES registry as of the last update on 2024-04-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.