Robert Sing-Yick Chang, MD
Pulmonary Disease Physician · Torrance, CA
Robert Sing-Yick Chang, MD is a pulmonary disease physician with a practice address in Torrance, California, and NPI 1902885833, issued on Jan 10, 2006. Check the license (California 52937, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Robert Sing-Yick Chang
- Credential
- MD
- Primary taxonomy
- Pulmonary Disease Physician 207RP1001X
- License number
- 52937 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3701 Skypark Dr, Torrance, CA 90505
- Phone
- (310) 378-8900
- Enumerated
- Jan 10, 2006
- Record last updated
- May 10, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (310) 791-0786
- Medicaid IDs
- 1902885833 CA
00G267250 CA - Entity
- Type 1 · individual
8 nearest pulmonary disease physician records → All 1,443 in California → Look up another NPI →
Also registered at 3701 Skypark Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- John Abe, MDPulmonary Disease Physician1578542569
- Shawn Destasio, NPFamily Nurse Practitioner1942378690
- Beth Dorn, MDInternal Medicine Physician1215973300
- Kay Elledge, MDObstetrics & Gynecology Physician1023055928
- Khalid Eltawil, MDPulmonary Disease Physician1396724399
- Erica Fleischauer, MS, MPTPhysical Therapist1124247176
Verify Robert Sing-Yick Chang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 52937Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Robert Sing-Yick Chang among 1,443 pulmonary disease physician records in California
Robert Sing-Yick Chang, MD is one of 1,443 pulmonary disease 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 not. Its NPI, issued in 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 51% newer
- In a Medicare fileNo · 84% of these records are
- In the CMS Doctors and Clinicians fileNo · 74% of these records are
- Record last updated2013 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RP1001X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pulmonary Disease Physician providers in California
There are 1,443 pulmonary disease physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 1,443 in California → Every provider in Torrance → Pulmonary Disease Physician nationwide →
The 8 pulmonary disease physician records with the nearest ZIP codes
- John Abe, MDTorrance, CA 905051578542569
- Khalid Eltawil, MDTorrance, CA 905051396724399
- Caleb Hsieh, M.D.Torrance, CA 905051760725550
- Richard Huynh, M.D.Torrance, CA 905051184858243
- Aditya Kotecha, M.D.Torrance, CA 905051811375371
- Cole Liberator, M. D.Torrance, CA 905051912261736
- Catherine Oberg, M.D.Torrance, CA 905051558633503
- Mladen Rasic, M.D.Torrance, CA 905051659313971
Common questions
What is Robert Sing-Yick Chang, MD's NPI number?
Robert Sing-Yick Chang, MD's National Provider Identifier (NPI) is 1902885833, issued on Jan 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Robert Sing-Yick Chang, MD located?
The NPPES record lists a practice address at 3701 Skypark Dr, Torrance, CA, 90505. Phone: (310) 378-8900. Providers update this record themselves, so call before visiting.
How can I verify Robert Sing-Yick Chang, MD's license?
NPPES lists California license number 52937, 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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.