Joseph Chang, MD
Infectious Disease Physician · Ellicott City, MD
Joseph Chang, MD is an infectious disease physician with a practice address in Ellicott City, Maryland, and NPI 1295120400, issued on Apr 3, 2015. Check the license (Maryland D88965, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Joseph Chang
- Credential
- MD
- Primary taxonomy
- Infectious Disease Physician 207RI0200X
- License number
- D88965 MD
Self-reported in NPPES; status is on the state search - Practice location
- 2850 N Ridge RD Ste 102, Ellicott City, MD 21043
- Phone
- (410) 418-8550
- Enumerated
- Apr 3, 2015
- Record last updated
- Feb 9, 2022
- Fax
- (410) 418-8552
- Medicare enrollment
- Enrolled (PECOS I20200922002720); accepts Medicare assignment
- Medical or professional school
- Wayne State University School Of Medicine, 2015
- Entity
- Type 1 · individual
8 nearest infectious disease physician records → All 410 in Maryland → Look up another NPI →
Also registered at 2850 N Ridge RD Ste 102
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Crystal Debeary, NPFamily Nurse Practitioner1669064507
Verify Joseph Chang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D88965Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 83.1 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).
Bills Medicare through one group practice
- Luminis Health Medical Group, LLCAnnapolis, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Joseph Chang among 410 infectious disease physician records in Maryland
Joseph Chang, MD is one of 410 infectious disease physician records with a practice address in Maryland. 59% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 85% of them.
- NPI issued2015 · 85% of these records are older, 11% newer
- In a Medicare fileYes · 59% of these records are
- In the CMS Doctors and Clinicians fileYes · 49% of these records are
- Graduated2015 · median 2002 among the 202 with a school on file
- Record last updated2022 · 69% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Infectious Disease Physician providers in Maryland
There are 410 infectious disease physician records in Maryland.
All 410 in Maryland → Every provider in Ellicott City → Infectious Disease Physician nationwide →
The 8 infectious disease physician records with the nearest ZIP codes
- Ravindra Karmarkar, MDEllicott City, MD 210431356380372
- Benjamin Landrum, MDEllicott City, MD 210431124131149
- Madeeha Shams, M.D.Ellicott City, MD 210431194138131
- Sara Taherkhani, MDEllicott City, MD 210431386954436
- Ramya Gopinath, M.D.Columbia, MD 210441376656306
- Angela Kopack, MDColumbia, MD 210441033253471
- Poonum Korpe, MDColumbia, MD 210441881853950
- Robert Ross, M.D.Columbia, MD 210441700999745
Common questions
What is Joseph Chang, MD's NPI number?
Joseph Chang, MD's National Provider Identifier (NPI) is 1295120400, issued on Apr 3, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Joseph Chang, MD located?
The NPPES record lists a practice address at 2850 N Ridge RD Ste 102, Ellicott City, MD, 21043. Phone: (410) 418-8550. Providers update this record themselves, so call before visiting.
How can I verify Joseph Chang, MD's license?
NPPES lists Maryland license number D88965, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
What is Joseph Chang, MD's MIPS final score?
The 2023 MIPS final score is 83.1 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.