Christine M. Chang, M.D.
Internal Medicine Physician · Danville, CA
Christine M. Chang, M.D. is an internal medicine physician with a practice address in Danville, California, and NPI 1770696056, issued on Aug 17, 2006. Check the license (California G77503, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Christine M. Chang
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- G77503 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4165 Blackhawk Plaza Cir, Danville, CA 94506
- Phone
- (925) 648-7140
- Enumerated
- Aug 17, 2006
- Record last updated
- Dec 28, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (925) 648-0878
- Medicare enrollment
- Enrolled (PECOS I20081217000261); accepts Medicare assignment
- Medical or professional school
- Albert Einstein College Of Medicine Of Yeshiva University, 1992
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 4165 Blackhawk Plaza Cir
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jillian Barrett, PH.D.Audiologist-Hearing Aid Fitter1811906191
- Melody BenzelOrthopedic Physical Therapist1336543792
- Joseph Berdal, P.T.Physical Therapist1952412298
- Elizabeth Buselli, NPAdult Health Nurse Practitioner1457442089
- Chester Cheng, M.D.Plastic and Reconstructive Surgery Physician1497892640
- Julia Denniston, RN, IBCLCLactation Consultant (Registered Nurse)1861600082
Verify Christine M. Chang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G77503Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
19% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,570 Medicare Part D claims for 332 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 12 claims were for opioids.
Most prescribed
- Atorvastatin Calcium302 claims
- Levothyroxine Sodium138 claims
- Rosuvastatin Calcium135 claims
- Amlodipine Besylate124 claims
- Olmesartan Medoxomil104 claims
- Lisinopril87 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: $64.88
3 payments; by number, the most common kind was food and beverage; the largest payer was Boehringer Ingelheim Pharmaceuticals, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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.
Bills Medicare through one group practice
- John Muir Physician NetworkDanville, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Christine M. Chang among 17,696 internal medicine physician records in California
Christine M. Chang, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% 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, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1992 · median 2004 among the 11,065 with a school on file
- Record last updated2012 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
20 internal medicine physician records list a practice address in Danville
They are 20 of the 897 NPPES records with a practice address in Danville, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Danville → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Amit Garg, MDDanville, CA 945061508185851
- Carol Lamb, M.D.Danville, CA 945061689787962
- Nimish Patel, D.O.Danville, CA 945061184901001
- Mark Reginato, M.D.Danville, CA 945061194884502
- Priya Swamy, D.O.Danville, CA 945061134272255
- Leonard Chuck, MDAlamo, CA 945071831139385
- Janet Gaston, M.D.Alamo, CA 945071053351825
- Manisha Malhotra, M.D.Alamo, CA 945071780614065
Common questions
What is Christine M. Chang, M.D.'s NPI number?
Christine M. Chang, M.D.'s National Provider Identifier (NPI) is 1770696056, issued on Aug 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Christine M. Chang, M.D. located?
The NPPES record lists a practice address at 4165 Blackhawk Plaza Cir, Danville, CA, 94506. Phone: (925) 648-7140. Providers update this record themselves, so call before visiting.
How can I verify Christine M. Chang, M.D.'s license?
NPPES lists California license number G77503, 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 Christine M. Chang, M.D. prescribe under Medicare Part D?
In 2024, Christine M. Chang, M.D. had 2,570 Medicare Part D claims for 332 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.