Ivy Ay-Wen Huang
Surgical Oncology Physician · San Francisco, CA
Ivy Ay-Wen Huang is a surgical oncology physician with a practice address in San Francisco, California, and NPI 1043601727, issued on Feb 16, 2015. Check the license (California A165224, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ivy Ay-Wen Huang
- Primary taxonomy
- Surgical Oncology Physician 2086X0206X
- License number
- A165224 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1825 4TH St FL 4, San Francisco, CA 94143
- Phone
- (415) 885-3625
- Enumerated
- Feb 16, 2015
- Record last updated
- Aug 6, 2026
- Entity
- Type 1 · individual
8 nearest surgical oncology physician records → All 250 in California → Look up another NPI →
Also registered at 1825 4TH St FL 4
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kripa Balaram, MDPsychiatry Physician1154825131
- Brigid Barlesi, NPNurse Practitioner1992724728
- Aman Chauhan, MDMedical Oncology Physician1902193147
- Renu Eapen, MBBS, FRACSUrology Physician1134673569
- Bonnie Early, PA-CMedical Physician Assistant1376881250
- Marina EmeryAdult Health Nurse Practitioner1801269253
Verify Ivy Ay-Wen Huang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A165224Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
53% fewer Medicare Part D claims than the average surgical oncology physician in 2024
41 Medicare Part D claims for 36 beneficiaries, against an average of 87 among the 1,237 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 32 claims were for opioids.
Most prescribed
- Oxycodone Hcl23 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.
Ivy Ay-Wen Huang among 250 surgical oncology physician records in California
Ivy Ay-Wen Huang is one of 250 surgical oncology physician records with a practice address in California. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 82% of them.
- NPI issued2015 · 82% of these records are older, 12% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileNo · 74% of these records are
- Record last updated2026 · 44% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2086X0206X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgical Oncology Physician providers in California
There are 250 surgical oncology physician records in California.
All 250 in California → Every provider in San Francisco → Surgical Oncology Physician nationwide →
The 8 surgical oncology physician records with the nearest ZIP codes
- Valerie Armstrong, MDSan Francisco, CA 941431871122911
- Jessica Dzubnar Barker, MDSan Francisco, CA 941431700349750
- Laura Esserman, MDSan Francisco, CA 941431679537971
- Cheryl Ewing, MDSan Francisco, CA 941431710935028
- Sarah HartmanSan Francisco, CA 941431558822122
- Jordan Jackson, MDSan Francisco, CA 941431902268360
- Kimberly Kirkwood, MDSan Francisco, CA 941431669437810
- Michelle Mulder, MDSan Francisco, CA 941431851787675
Common questions
What is Ivy Ay-Wen Huang's NPI number?
Ivy Ay-Wen Huang's National Provider Identifier (NPI) is 1043601727, issued on Feb 16, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Ivy Ay-Wen Huang located?
The NPPES record lists a practice address at 1825 4TH St FL 4, San Francisco, CA, 94143. Phone: (415) 885-3625. Providers update this record themselves, so call before visiting.
How can I verify Ivy Ay-Wen Huang's license?
NPPES lists California license number A165224, 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 Ay-Wen Huang prescribe under Medicare Part D?
In 2024, Ivy Ay-Wen Huang had 41 Medicare Part D claims for 36 beneficiaries; the average among surgical oncology physician prescribers was 87. 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.