Irene Leonor Wapnir, M.D.
Surgery Physician · Palo Alto, CA
Irene Leonor Wapnir, M.D. is a surgery physician with a practice address in Palo Alto, California, and NPI 1104951508, issued on Feb 23, 2007. Check the license (California C50558, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Irene Leonor Wapnir
- Credential
- M.D.
- Primary taxonomy
- Surgery Physician 208600000X
- License number
- C50558 CA
Self-reported in NPPES; status is on the state search - Practice location
- 300 Pasteur Dr, Palo Alto, CA 94304
- Phone
- (650) 723-4000
- Enumerated
- Feb 23, 2007
- Record last updated
- Apr 29, 2024
- Fax
- (650) 736-1663
- Medicaid ID
- 00C505580 CA
- Medicare enrollment
- Enrolled (PECOS I20080814000225); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest surgery physician records → All 3,118 in California → Look up another NPI →
Also registered at 300 Pasteur Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Connor Adams, PSYDClinical Psychologist1467081216
- Terence Ahern, MDEmergency Medicine Physician1104195916
- Teddy Akiki, MDPsychiatry Physician1942867718
- Amy Alexander, M.D.Psychiatry Physician1740435486
- Monica Allen, PSYDClinical Psychologist1952787749
Verify Irene Leonor Wapnir in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C50558Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average surgery physician in 2024
12 Medicare Part D claims, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D.
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.
The practice group's MIPS final score for 2023 (Medicare payment program): 76.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $254.05
2 payments; by number, the most common kind was consulting fee; the largest payer was Vector Surgical, LLC. The 17,103 providers of this specialty with any payment received $3,513.80 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
One hospital affiliation
- Stanford Health CareStanford, CA · Acute Care Hospitals5 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Irene Leonor Wapnir among 3,118 surgery physician records in California
Irene Leonor Wapnir, M.D. is one of 3,118 surgery physician records with a practice address in California. 75% 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 45% of them.
- NPI issued2007 · 45% of these records are older, 42% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated1980 · median 2003 among the 1,901 with a school on file
- Record last updated2024 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgery Physician providers in California
There are 3,118 surgery physician records in California.
All 3,118 in California → Every provider in Palo Alto → Surgery Physician nationwide →
The 8 surgery physician records with the nearest ZIP codes
- James Badger, M.D.Palo Alto, CA 943041255360863
- Frederick Dirbas, MDPalo Alto, CA 943041154457091
- Dan Eisenberg, M.D.Palo Alto, CA 943041437371978
- Carlos Esquivel, M.D., PH.D.Palo Alto, CA 943041942343504
- Brooke Gurland, MDPalo Alto, CA 943041891889101
- Mary Hawn, MDPalo Alto, CA 943041194751271
- Mardi Karin, M.D.Palo Alto, CA 943041275568388
- Electron Kebebew, MDPalo Alto, CA 943041972567246
Common questions
What is Irene Leonor Wapnir, M.D.'s NPI number?
Irene Leonor Wapnir, M.D.'s National Provider Identifier (NPI) is 1104951508, issued on Feb 23, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Irene Leonor Wapnir, M.D. located?
The NPPES record lists a practice address at 300 Pasteur Dr, Palo Alto, CA, 94304. Phone: (650) 723-4000. Providers update this record themselves, so call before visiting.
How can I verify Irene Leonor Wapnir, M.D.'s license?
NPPES lists California license number C50558, 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 Irene Leonor Wapnir, M.D. prescribe under Medicare Part D?
In 2024, Irene Leonor Wapnir, M.D. had 12 Medicare Part D claims; the average among surgery physician prescribers was 147. Part D covers Medicare prescriptions only.
What is Irene Leonor Wapnir, M.D.'s MIPS final score?
The 2023 MIPS final score is 76.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.