Ching Hai Chang, MD
Family Medicine Physician · Walnut Creek, CA
Ching Hai Chang, MD is a family medicine physician with a practice address in Walnut Creek, California, and NPI 1174545909, issued on Jul 24, 2006. Check the license (California A34364, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ching Hai Chang
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A34364 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1812 San Miguel Dr, Walnut Creek, CA 94596
- Phone
- (925) 944-9193
- Enumerated
- Jul 24, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (925) 944-0682
- Medicare enrollment
- Enrolled (PECOS I20101007000762); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 1812 San Miguel Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Derek Jue, M.D.Family Medicine Physician1679592976
Verify Ching Hai Chang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A34364Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
71% more Medicare Part D claims than the average family medicine physician in 2024
6,059 Medicare Part D claims for 478 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 32 claims were for opioids.
Most prescribed
- Atorvastatin Calcium713 claims
- Amlodipine Besylate320 claims
- Losartan Potassium219 claims
- Metoprolol Succinate172 claims
- Metformin Hcl167 claims
- Rosuvastatin Calcium156 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: $938.03
42 payments; by number, the most common kind was food and beverage; the largest payer was GlaxoSmithKline, LLC. The 55,478 providers of this specialty with any payment received $902.55 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.
Ching Hai Chang among 17,133 family medicine physician records in California
Ching Hai Chang, MD is one of 17,133 family medicine physician records with a practice address in California. 81% 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 6% of them.
- NPI issued2006 · 6% of these records are older, 59% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1967 · median 2005 among the 10,652 with a school on file
- Record last updated2007 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
116 family medicine physician records list a practice address in Walnut Creek
They are 116 of the 6,170 NPPES records with a practice address in Walnut Creek, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Walnut Creek → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Sujay Banerjee, MDWalnut Creek, CA 945961174601249
- Sophie Barnes, NP-CWalnut Creek, CA 945961558729145
- Trevor Brodsky-Brooks, M.D.Walnut Creek, CA 945961407389331
- Mee-Jin Chong, M.D.Walnut Creek, CA 945961407994072
- Aurelia Gincauskas, MDWalnut Creek, CA 945961386722486
- Suzanne Gokel, D.O.Walnut Creek, CA 945961275606758
- Derek Jue, M.D.Walnut Creek, CA 945961679592976
- Ramya Kuchibhatla, MDWalnut Creek, CA 945961871081182
Common questions
What is Ching Hai Chang, MD's NPI number?
Ching Hai Chang, MD's National Provider Identifier (NPI) is 1174545909, issued on Jul 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ching Hai Chang, MD located?
The NPPES record lists a practice address at 1812 San Miguel Dr, Walnut Creek, CA, 94596. Phone: (925) 944-9193. Providers update this record themselves, so call before visiting.
How can I verify Ching Hai Chang, MD's license?
NPPES lists California license number A34364, 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 Ching Hai Chang, MD prescribe under Medicare Part D?
In 2024, Ching Hai Chang, MD had 6,059 Medicare Part D claims for 478 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.