I-Ching Gong, MD
Obstetrics & Gynecology Physician · Milpitas, CA
I-Ching Gong, MD is an obstetrics & gynecology physician with a practice address in Milpitas, California, and NPI 1831276765, issued on Oct 31, 2006. Check the license (California A69061, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- I-Ching Gong
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- A69061 CA
Self-reported in NPPES; status is on the state search - Practice location
- 770 E Calaveras Blvd, Milpitas, CA 95035
- Phone
- (650) 945-2900
- Enumerated
- Oct 31, 2006
- Record last updated
- Dec 13, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 00A690610 CA
- Medicare enrollment
- Enrolled (PECOS I20110315000543); accepts Medicare assignment
- Medical or professional school
- University Of Southern California Keck School Of Medicine, 1997
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →
Also registered at 770 E Calaveras Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Denise Brahan, MDPediatrics Physician1275605008
- Katherine Brubaker, MDObstetrics & Gynecology Physician1376620211
Verify I-Ching Gong in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A69061Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
76% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
39 Medicare Part D claims for 19 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.
Most prescribed
- Fluconazole11 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
- Permanente Medical Group IncMilpitas, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
I-Ching Gong among 5,088 obstetrics & gynecology physician records in California
I-Ching Gong, 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
- Graduated1997 · 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).
9 obstetrics & gynecology physician records list a practice address in Milpitas
They are 9 of the 878 NPPES records with a practice address in Milpitas, and 5,088 obstetrics & gynecology physician records in California.
All 5,088 in California → Every provider in Milpitas → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Katherine Brubaker, MDMilpitas, CA 950351376620211
- Melanie De Guzman, MDMilpitas, CA 950351306918057
- Danna Doering, MDMilpitas, CA 950351336226265
- Chanan Duong, MDMilpitas, CA 950351003379702
- Rita Freimuth, M.D.Milpitas, CA 950351700951423
- Hanh Hoang, M.D.Milpitas, CA 950351093941973
- Janelle Ogura, MDMilpitas, CA 950351083786883
- Diem Truong, MDMilpitas, CA 950351356428296
Common questions
What is I-Ching Gong, MD's NPI number?
I-Ching Gong, MD's National Provider Identifier (NPI) is 1831276765, issued on Oct 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is I-Ching Gong, MD located?
The NPPES record lists a practice address at 770 E Calaveras Blvd, Milpitas, CA, 95035. Phone: (650) 945-2900. Providers update this record themselves, so call before visiting.
How can I verify I-Ching Gong, MD's license?
NPPES lists California license number A69061, 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 I-Ching Gong, MD prescribe under Medicare Part D?
In 2024, I-Ching Gong, MD had 39 Medicare Part D claims for 19 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.