Joellen Lee Vanzander, MD
Dermatology Physician · Menlo Park, CA
Joellen Lee Vanzander, MD is a dermatology physician with a practice address in Menlo Park, California, and NPI 1881819019, issued on Apr 14, 2007. Check the license (California A102997, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Joellen Lee Vanzander
- Credential
- MD
- Primary taxonomy
- Dermatology Physician 207N00000X
- License number
- A102997 CA
Self-reported in NPPES; status is on the state search - Practice location
- 321 Middlefield RD Ste 260, Menlo Park, CA 94025
- Phone
- (650) 498-6500
- Enumerated
- Apr 14, 2007
- Record last updated
- Apr 16, 2024
- Medicare enrollment
- Enrolled (PECOS I20100824000192); accepts Medicare assignment
- Medical or professional school
- University Of Chicago, Pritzker School Of Medicine, 2000
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest dermatology physician records → All 2,083 in California → Look up another NPI →
Also registered at 321 Middlefield RD Ste 260
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Yu-Wen Chang, DOFamily Medicine Physician1598258154
- Sinda Mein, MDGastroenterology Physician1376657734
- Charlie Michaudet, MDSports Medicine (Family Medicine) Physician1770802647
Verify Joellen Lee Vanzander in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A102997Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
23% fewer Medicare Part D claims than the average dermatology physician in 2024
612 Medicare Part D claims for 255 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims.
Most prescribed
- Ketoconazole112 claims
- Clobetasol Propionate90 claims
- Fluorouracil53 claims
- Triamcinolone Acetonide45 claims
- Calcipotriene39 claims
- Mupirocin27 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- University Healthcare AllianceMenlo Park, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Joellen Lee Vanzander among 2,083 dermatology physician records in California
Joellen Lee Vanzander, MD is one of 2,083 dermatology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 44% of them.
- NPI issued2007 · 44% of these records are older, 45% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2000 · median 2006 among the 1,450 with a school on file
- Record last updated2024 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207N00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Dermatology Physician providers in California
There are 2,083 dermatology physician records in California.
All 2,083 in California → Every provider in Menlo Park → Dermatology Physician nationwide →
The 8 dermatology physician records with the nearest ZIP codes
- Audrey Fetch, M.D.Menlo Park, CA 940251093158495
- Sarah Jacobson, M.D.Menlo Park, CA 940251447392493
- Diana Leu, MDMenlo Park, CA 940251609032242
- Tara Miller, MDMenlo Park, CA 940251477685907
- Dale Pearlman, M.D.Menlo Park, CA 940251619082047
- Mary Sheu, MDMenlo Park, CA 940251659338705
- Nancy Petersilge, M.D.Los Altos, CA 940241467609396
- Siavosh Vossough, M.D.Los Altos, CA 940241922192111
Common questions
What is Joellen Lee Vanzander, MD's NPI number?
Joellen Lee Vanzander, MD's National Provider Identifier (NPI) is 1881819019, issued on Apr 14, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Joellen Lee Vanzander, MD located?
The NPPES record lists a practice address at 321 Middlefield RD Ste 260, Menlo Park, CA, 94025. Phone: (650) 498-6500. Providers update this record themselves, so call before visiting.
How can I verify Joellen Lee Vanzander, MD's license?
NPPES lists California license number A102997, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Joellen Lee Vanzander, MD prescribe under Medicare Part D?
In 2024, Joellen Lee Vanzander, MD had 612 Medicare Part D claims for 255 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.