Dr. Joellen Lee Vanzander, MD
- Medicare services, 2024
- 2,904
- Medicare patients, 2024
- 616
- Part D claims, 2024
- 612
- Hospital affiliations
- 1
- Industry payments
- $1,216
- Practice address
- 321 Middlefield Rd, Menlo Park, CA 94025
- Practice phone
- Call (650) 498-6500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Menlo Medical Clinic
Menlo Park, California
Find Dr. Vanzander's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Joellen Lee Vanzander is a dermatologist in Menlo Park, California
Dr. Vanzander practices at Menlo Medical Clinic in Menlo Park, California.
Dr. Vanzander's NPI, 1881819019, was assigned on April 14, 2007. Dr. Vanzander graduated from Pritzker School of Medicine in 2000. Dr. Vanzander holds California license A102997.
- NPI
- 1881819019NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0345207585
- NPI enumeration date
- April 14, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (650) 498-6500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 52
- Medical school graduation
- 2000
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Joellen Lee Vanzander practices at Menlo Medical Clinic in Menlo Park, California
Dr. Vanzander's primary practice is Menlo Medical Clinic, at 321 Middlefield Rd, Menlo Park, CA 94025 in San Mateo County. The practice phone is (650) 498-6500.
- Menlo Medical Clinic321 Middlefield Rd, Menlo Park, CA 94025 · San Mateo CountyPhone(650) 498-6500
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Joellen Lee Vanzander is affiliated with 3 sites of care and 1 medical group
Dr. Vanzander's primary practice is Menlo Medical Clinic in Menlo Park, California. Dr. Vanzander is also affiliated with Stanford Hospital at 300 Pasteur Drive. The medical group on file is Stanford Medicine Partners. Dmand AI also links Dr. Vanzander to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Joellen Lee Vanzander's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Vanzander practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Menlo Medical Clinic | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Joellen Lee Vanzander is one of 1,910 dermatologists in California
Dermatology is Dr. Vanzander's primary specialty in the NPI Registry, under taxonomy code 207N00000X. Dr. Vanzander is board certified in dermatology by the American Board of Dermatology. Dmand AI has Dr. Vanzander's licenses on file in 2 states: California and New York.
Specialties and state licenses
- Dermatology, CaliforniaPrimary
- New York license
Clinical focus
Dmand AI lists acute skin infection, benign or precancerous skin growths, contact dermatitis, corns and calluses, hives, itchy rashes, joint cyst and minor injury to a limb among the conditions Dr. Vanzander treats.
Dermatologists near Dr. Vanzander
Counts of dermatologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Joellen Lee Vanzander billed Medicare for 2,904 services in 2024
CMS data shows 2,904 Medicare services from Dr. Vanzander across 11 procedure codes in 2024, for 616 Medicare patients. Medicare paid $162,318 for them. Every service was in an office.
Dr. Vanzander's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 1,6932024: 1,7041%
- Office and hospital visits
- 2023: 9202024: 9908%
- Other services
- 2023: 02024: 210
- Drugs given in the office
- 2023: 422024: 0100%
Dr. Vanzander compared with the California median for dermatologists, 2024
- Dr. Vanzander
- California median
- Medicare services
- 2,904vs 1,75066% above
- Medicare patients
- 616vs 37763% above
- Part D claims
- 490vs 36734% above
Medians across 1,831 dermatologists in California with Dmand AI profiles that report each measure.
Dr. Vanzander's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Vanzander and other dermatologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Joellen Lee Vanzander treated 616 Medicare patients in 2024, average age 76
CMS counts 616 Medicare patients who saw Dr. Vanzander in 2024. The largest group is 75 to 84, with 291 patients. 69% of them have high cholesterol, and 56% have high blood pressure. Their average risk score is 0.87, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Vanzander's median patient age at 66, with 58% women.
Dr. Vanzander's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Vanzander's Medicare patients by sex, 2024
- Women36459%
- Men25241%
Chronic conditions among Dr. Vanzander's Medicare patients, 2024
- High cholesterol69%
- High blood pressure56%
- Arthritis32%
- Osteoporosis26%
- Ischemic heart disease22%
- Cancer18%
- Atrial fibrillation16%
- Diabetes13%
Share of Medicare patients with each condition. A patient can have several.
Dr. Vanzander's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women58%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Joellen Lee Vanzander wrote 612 Medicare Part D claims in 2024
In 2024, Dr. Vanzander wrote 612 Medicare Part D claims for 255 patients. 94% of them were for generic drugs. CMS names the drug for 490 of them, across 13 drugs with 11 or more claims each, at $16,655 in total drug cost. In 2023, CMS named 494 claims across 11 drugs.
Dr. Vanzander's Part D claims by kind of drug, 2024
- Generic575 claims94%
- Brand-name37 claims6%
Dr. Vanzander's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Vanzander's Part D claims, 2024
- Antibiotics5%30 of 612 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 4942024: 4901%
Drugs named by CMS: 13 in 2024, 11 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Joellen Lee Vanzander ranks in the 93rd percentile for skin biopsy in Medicare
Dr. Vanzander accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Vanzander as offering telehealth. CMS counts 362 procedures of skin biopsy by Dr. Vanzander, more than 93% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Where Dr. Vanzander ranks in Medicare procedure volume
- Removal of skin lesions
- 91st percentile773 procedures
- Skin biopsy
- 93rd percentile362 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Removal or shaving of skin growth: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Joellen Lee Vanzander received $1,216 in industry payments from 2016 to 2025
CMS Open Payments shows 26 general payments to Dr. Vanzander from 12 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 99% of the total. Regeneron Pharmaceuticals, Inc. paid the most, $237.
General payments to Dr. Vanzander by program year, 2016 to 2025
General payments to Dr. Vanzander by kind, 2016 to 2025
- Food and beverage$1,20099%
- Education$151%
Companies that paid Dr. Vanzander the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Joellen Lee Vanzander has 1 award and honors on record
Dmand AI lists 1 award for Dr. Vanzander, most recently CMS Stage 1 EHR in 2013.
Awards and honors for Dr. Vanzander
- 2013
- CMS Stage 1 EHR
Source: Dmand AI Professional Profile Data
Dr. Joellen Lee Vanzander graduated from Pritzker School of Medicine
Dr. Vanzander graduated from Pritzker School of Medicine in 2000.
- Medical school
- Board certified in dermatology
Source: Dmand AI Professional Profile Data
Dr. Joellen Lee Vanzander accepts plans from 6 insurance carriers
Dr. Vanzander is in network with 6 carriers, including Elevance, Aetna and Blue Cross Blue Shield of Michigan. HMO plans come from the most carriers, 4. Check the plan with the practice before a visit.
- Elevance
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Blue Cross and Blue Shield of Kansas City
- CMS Medicare
Plan types Dr. Vanzander accepts, by number of carriers
- HMO4
- POS4
- EPO3
- Medicare3
- PPO3
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Joellen Lee Vanzander's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Joellen Lee Vanzander
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Joellen Lee Vanzander's NPI number?
Dr. Joellen Lee Vanzander's NPI number is 1881819019. It was assigned on April 14, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Joellen Lee Vanzander?
Dr. Joellen Lee Vanzander is a dermatologist in Menlo Park, California. The primary specialty in the NPI Registry is Dermatology Physician (taxonomy code 207N00000X).
Where does Dr. Joellen Lee Vanzander practice?
Dr. Vanzander practices at 321 Middlefield Rd, Menlo Park, CA 94025. Dr. Vanzander's primary practice is Menlo Medical Clinic in Menlo Park, California. Dmand AI also links Dr. Vanzander to 1 group practice or clinic.
What is Dr. Joellen Lee Vanzander's office phone number?
The practice phone on file for Dr. Vanzander is (650) 498-6500.
What is Dr. Joellen Lee Vanzander's medical license number?
Dr. Vanzander holds California license A102997, one of the licenses on file in 2 states.
Which states has Dr. Joellen Lee Vanzander been licensed in?
Dmand AI has state licenses on file for Dr. Vanzander in California (2008 to 2026) and New York (2002 to 2010).
Which hospitals is Dr. Joellen Lee Vanzander affiliated with?
Dr. Vanzander is affiliated with Stanford Hospital at 300 Pasteur Drive.
What medical group is Dr. Joellen Lee Vanzander part of?
Dr. Vanzander is linked to Stanford Medicine Partners.
Does Dr. Joellen Lee Vanzander accept Medicare?
Yes. CMS data shows Dr. Vanzander billed Medicare for 2,904 services in 2024, and Dr. Vanzander accepts Medicare assignment.
Does Dr. Joellen Lee Vanzander offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Vanzander as offering telehealth services.
Show 8 more questionsShow fewer questions
How many Medicare patients does Dr. Joellen Lee Vanzander see?
CMS counts 616 Medicare patients who saw Dr. Vanzander in 2024, with an average age of 76.
Is Dr. Joellen Lee Vanzander board certified?
Yes. Dr. Vanzander is board certified in dermatology by the American Board of Dermatology.
What services does Dr. Joellen Lee Vanzander bill to Medicare?
In 2024, Dr. Vanzander's most billed Medicare services were surgery: skin and soft tissue (17003), office visit, established patient (99214) and office visit, established patient (99213).
Where did Dr. Joellen Lee Vanzander go to medical school?
Dr. Vanzander graduated from Pritzker School of Medicine in 2000.
What drugs does Dr. Joellen Lee Vanzander prescribe most?
In 2024 Medicare Part D data, Dr. Vanzander's most prescribed drugs by claims were Ketoconazole, Clobetasol Propionate and Fluorouracil.
Has Dr. Joellen Lee Vanzander received payments from drug or device companies?
CMS Open Payments shows $1,216 in general payments to Dr. Vanzander from 12 companies from 2016 to 2025. The largest total came from Regeneron Pharmaceuticals, Inc.
How long has Dr. Joellen Lee Vanzander been practicing?
Dr. Vanzander graduated from medical school in 2000, 26 years ago.
What insurance does Dr. Joellen Lee Vanzander accept?
Dr. Vanzander is in network with 6 carriers, including Elevance, Aetna and Blue Cross Blue Shield of Michigan. HMO plans come from the most carriers, 4. Check the plan with the practice before a visit.
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