NPPES file of Aug 9, 2026

Julie A. Wissink, M.D.

Internal Medicine Physician · Palo Alto, CA

Julie A. Wissink, M.D. is an internal medicine physician with a practice address in Palo Alto, California, and NPI 1386738623, issued on Oct 3, 2006. Check the license (California G66832, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1386738623
Name
Julie A. Wissink
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
G66832 CA
Self-reported in NPPES; status is on the state search
Practice location
805 EL Camino Real Ste B, Palo Alto, CA 94301
Phone
(650) 329-0440
Enumerated
Oct 3, 2006
Record last updated
Oct 30, 2020 (not updated in 6 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Julie A. Wissink in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G66832
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

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44% fewer Medicare Part D claims than the average internal medicine physician in 2024

1,784 Medicare Part D claims for 141 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 34 claims were for opioids.

  1. Julie Wissink1,784
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium166 claims
  2. Losartan Potassium74 claims
  3. Levothyroxine Sodium73 claims
  4. Rosuvastatin Calcium57 claims
  5. Triamterene-Hydrochlorothiazid53 claims
  6. Alendronate Sodium45 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.

Industry payments in 2024: $1,248.09

69 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Julie Wissink$1,248.09
  2. Specialty average$1,303.06

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Julie A. Wissink among 17,696 internal medicine physician records in California

Julie A. Wissink, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.

  • NPI issued2006 · 5% of these records are older, 56% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileNo · 63% of these records are
  • Record last updated2020 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

187 internal medicine physician records list a practice address in Palo Alto

They are 187 of the 7,617 NPPES records with a practice address in Palo Alto, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Salwan Abiezzi, M.D.Palo Alto, CA 943011427163393
  2. Christopher Burn, M.D.Palo Alto, CA 943011740395672
  3. William Cheng, MDPalo Alto, CA 943011134234156
  4. Bradford Duncan, MDPalo Alto, CA 943011104932540
  5. Barry Eisenberg, MDPalo Alto, CA 943011134235450
  6. Susan Elgee, MDPalo Alto, CA 943011225144561
  7. Luis Folan, MDPalo Alto, CA 943011255314126
  8. Lisa Gervin, M.D.Palo Alto, CA 943011962425157

Common questions

What is Julie A. Wissink, M.D.'s NPI number?

Julie A. Wissink, M.D.'s National Provider Identifier (NPI) is 1386738623, issued on Oct 3, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Julie A. Wissink, M.D. located?

The NPPES record lists a practice address at 805 EL Camino Real Ste B, Palo Alto, CA, 94301. Phone: (650) 329-0440. Providers update this record themselves, so call before visiting.

How can I verify Julie A. Wissink, M.D.'s license?

NPPES lists California license number G66832, 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 Julie A. Wissink, M.D. prescribe under Medicare Part D?

In 2024, Julie A. Wissink, M.D. had 1,784 Medicare Part D claims for 141 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.