Bolin L. Chang, MD
Endocrinology, Diabetes & Metabolism Physician · Los Angeles, CA
Bolin L. Chang, MD is an endocrinology, diabetes & metabolism physician with a practice address in Los Angeles, California, and NPI 1114595238, issued on Jun 15, 2021. Check the license (California 194519, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Bolin L. Chang
- Credential
- MD
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- 194519 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2080 Century Park E Ste 710, Los Angeles, CA 90067
- Phone
- (310) 715-3237
- Enumerated
- Jun 15, 2021
- Record last updated
- Jul 2, 2026
- Fax
- (213) 528-7373
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 1,131 in California → Look up another NPI →
Also registered at 2080 Century Park E Ste 710
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Bolin L. Chang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 194519Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
57 Medicare Part D claims for 20 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 51% of 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: $130.37
1 payment: food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. 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.
Bolin L. Chang among 1,131 endocrinology, diabetes & metabolism physician records in California
Bolin L. Chang, MD is one of 1,131 endocrinology, diabetes & metabolism 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 2021, is newer than 98% of them.
- NPI issued2021 · 98% of these records are older, under 1% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileNo · 69% of these records are
- Record last updated2026 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in California
There are 1,131 endocrinology, diabetes & metabolism physician records in California.
All 1,131 in California → Every provider in Los Angeles → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Mitchell Cohen, M.D.Los Angeles, CA 900671023002813
- Jordan Geller, M.D.Los Angeles, CA 900671821023037
- Peter Vash, MD MPHLos Angeles, CA 900671831269059
- Laurie Kane, MDLos Angeles, CA 900661730248956
- Vanessa Schmidt, M.D.Los Angeles, CA 900661588949176
- Carol Teutsch, M.D.Los Angeles, CA 900651982907010
- Sina Tebi, M.D.Los Angeles, CA 900641437380789
- Gregory Brent, MDLos Angeles, CA 900731194835926
Common questions
What is Bolin L. Chang, MD's NPI number?
Bolin L. Chang, MD's National Provider Identifier (NPI) is 1114595238, issued on Jun 15, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Bolin L. Chang, MD located?
The NPPES record lists a practice address at 2080 Century Park E Ste 710, Los Angeles, CA, 90067. Phone: (310) 715-3237. Providers update this record themselves, so call before visiting.
How can I verify Bolin L. Chang, MD's license?
NPPES lists California license number 194519, 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 Bolin L. Chang, MD prescribe under Medicare Part D?
In 2024, Bolin L. Chang, MD had 57 Medicare Part D claims for 20 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. 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.