NPPES file of Aug 9, 2026

Ivy I. Yu, MD

Obstetrics & Gynecology Physician · Oakland, CA

Ivy I. Yu, MD is an obstetrics & gynecology physician with a practice address in Oakland, California, and NPI 1003980699, issued on Nov 17, 2006. Check the license (California A87302, 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
1003980699
Name
Ivy I. Yu
Credential
MD
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
A87302 CA
Self-reported in NPPES; status is on the state search
Practice location
280 W Macarthur Blvd, Oakland, CA 94611
Phone
(510) 752-1000
Enumerated
Nov 17, 2006
Record last updated
Dec 22, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20070122000355); accepts Medicare assignment
Medical or professional school
University Of Mississippi School Of Medicine, 2002
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 280 W Macarthur Blvd

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Donna Abare, MDInternal Medicine Physician1386722155
  2. Karen Ahn, M.S.Genetic Counselor (M.S.)1396723532
  3. Kimberly Aikawa-Olin, M.S., R.D., C.D.E.Registered Dietitian1326116740
  4. Leila Al-MarayatiPhysical Therapist1952459109
  5. Elizabeth Alexandro, OTR, CHTHand Occupational Therapist1972662708
  6. Teri Alyami, MDInternal Medicine Physician1326126194

Verify Ivy I. Yu in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A87302
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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32% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

113 Medicare Part D claims for 54 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.

  1. Ivy Yu113
  2. Specialty average165

Most prescribed

  1. Estradiol30 claims
  2. Clobetasol Propionate18 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

  1. Permanente Medical Group IncRichmond, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Ivy I. Yu among 5,088 obstetrics & gynecology physician records in California

Ivy I. Yu, MD is one of 5,088 obstetrics & gynecology physician records with a practice address in California. 74% 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, 52% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 53% of these records are
  • Graduated2002 · median 2004 among the 2,700 with a school on file
  • Record last updated2021 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics & Gynecology Physician providers in California

There are 5,088 obstetrics & gynecology physician records in California.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Grace Cavallaro, MDOakland, CA 946111548342165
  2. Victor Chin, MDOakland, CA 946111598843385
  3. Christie Cooksey, MDOakland, CA 946111689668386
  4. Patrick Dawkins, MDOakland, CA 946111760571145
  5. Rima Goldman, MDOakland, CA 946111528146354
  6. Judith Lamberti, MDOakland, CA 946111043398837
  7. Susan Liu, MDOakland, CA 946111376629881
  8. Sonia Ordonez, MDOakland, CA 946111215049986

Common questions

What is Ivy I. Yu, MD's NPI number?

Ivy I. Yu, MD's National Provider Identifier (NPI) is 1003980699, issued on Nov 17, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Ivy I. Yu, MD located?

The NPPES record lists a practice address at 280 W Macarthur Blvd, Oakland, CA, 94611. Phone: (510) 752-1000. Providers update this record themselves, so call before visiting.

How can I verify Ivy I. Yu, MD's license?

NPPES lists California license number A87302, 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 Ivy I. Yu, MD prescribe under Medicare Part D?

In 2024, Ivy I. Yu, MD had 113 Medicare Part D claims for 54 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.