Jennifer Chang, M.D.
Endocrinology, Diabetes & Metabolism Physician · Pasadena, CA
Jennifer Chang, M.D. is an endocrinology, diabetes & metabolism physician with a practice address in Pasadena, California, and NPI 1568631091, issued on Feb 28, 2008. Check the license (California A102118, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Jennifer Chang
- Credential
- M.D.
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License numbers
- A102118 CA
102118 CA
Self-reported in NPPES; status is on the state search - Practice location
- 55 E California Blvd, Pasadena, CA 91105
- Phone
- (626) 397-8323
- Enumerated
- Feb 28, 2008
- Record last updated
- Jan 20, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (626) 792-3611
- Medicare enrollment
- Enrolled (PECOS I20090210000551); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 55 E California Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- David Cantor, MDSpecialist1689646713
- Kristin Chapman, MDPediatrics Physician1093787822
- John Easthope, MDCardiovascular Disease Physician1174580328
- Walter Edmiston, MDCardiovascular Disease Physician1407811128
- Gregory Giesler, MDCardiovascular Disease Physician1477518454
- Joel Heger, MDCardiovascular Disease Physician1578528204
Verify Jennifer Chang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A102118Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
69% more Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
4,436 Medicare Part D claims for 592 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 57% of claims.
Most prescribed
- Levothyroxine Sodium476 claims
- Mounjaro303 claims
- Ozempic255 claims
- Jardiance254 claims
- Trulicity249 claims
- Metformin Hcl244 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 80.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $920.91
41 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 5,661 providers of this specialty with any payment received $5,742.15 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
- The Huntington Medical FoundationPasadena, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in California
There are 1,131 endocrinology, diabetes & metabolism physician records in California.
Other endocrinology, diabetes & metabolism physician records in California
- Evan Abel, MDSanta Monica, CA1619067238
- Anita Abraham, M.D.Stockton, CA1558380337
- Sallie Adams, M.D.Roseville, CA1255342085
- Helen Adelberg, M.D.Encino, CA1093935447
- Yewande Adepoju, DOOroville, CA1467892984
- David Aftergood, MDBeverly Hills, CA1639259328
- Nidhi Agarwal, MDTorrance, CA1518387125
- Bahar Aghighi, MDSanta Cruz, CA1770562134
- Tyler Aguinaldo, MDBurlingame, CA1306811906
- Susan Ahern, D.O.Ventura, CA1508156597
Common questions
What is Jennifer Chang, M.D.'s NPI number?
Jennifer Chang, M.D.'s National Provider Identifier (NPI) is 1568631091, issued on Feb 28, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Jennifer Chang, M.D. located?
The NPPES record lists a practice address at 55 E California Blvd, Pasadena, CA, 91105. Phone: (626) 397-8323. Providers update this record themselves, so call before visiting.
How can I verify Jennifer Chang, M.D.'s license?
NPPES lists California license number A102118, 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 Jennifer Chang, M.D. prescribe under Medicare Part D?
In 2024, Jennifer Chang, M.D. had 4,436 Medicare Part D claims for 592 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. Part D covers Medicare prescriptions only.
What is Jennifer Chang, M.D.'s MIPS final score?
The 2023 MIPS final score is 80.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.