Joy Chang, M.D.
Addiction Psychiatry Physician · Baltimore, MD
Joy Chang, M.D. is an addiction psychiatry physician with a practice address in Baltimore, Maryland, and NPI 1154620540, issued on Mar 24, 2011. Check the license (Maryland D0076718, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Joy Chang
- Credential
- M.D.
- Primary taxonomy
- Addiction Psychiatry Physician 2084P0802X
- License number
- D0076718 MD
Self-reported in NPPES; status is on the state search - Practice location
- 110 S Paca St, Baltimore, MD 21201
- Phone
- (410) 328-1834
- Enumerated
- Mar 24, 2011
- Record last updated
- Jul 30, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (410) 328-1749
- Medicare enrollment
- Enrolled (PECOS I20240403001869); accepts Medicare assignment
- Medical or professional school
- Wright State University Boonshoft School Of Medicine, 2011
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest addiction psychiatry physician records → All 24 in Maryland → Look up another NPI →
Also registered at 110 S Paca St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michael Abraham, MDEmergency Medicine Physician1316081557
- Ibrahim Abuduruk, M.B.B.SStudent in an Organized Health Care Education/Training Program1588084784
- Nissim AckshotaStudent in an Organized Health Care Education/Training Program1053864678
- Beatrice Afrangui, M.D.Pain Medicine (Anesthesiology) Physician1730127184
- Ahmed Al Hazmi, MDEmergency Medicine Physician1225482607
- Tareq Al-Salamah, MBBSEmergency Medicine Physician1336400555
Verify Joy Chang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0076718Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.7 times the Medicare Part D claims of the average addiction psychiatry physician in 2024
1,937 Medicare Part D claims for 239 beneficiaries, against an average of 716 among the 421 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.
Most prescribed
- Clozapine152 claims
- Olanzapine104 claims
- Benztropine Mesylate76 claims
- Aripiprazole74 claims
- Clonazepam74 claims
- Quetiapine Fumarate74 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): 100 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: $26.79
1 payment: food and beverage; the largest payer was Abbvie Inc. The 170 providers of this specialty with any payment received $1,785.85 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
- Cornerstone Montgomery IncBethesda, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Joy Chang among 24 addiction psychiatry physician records in Maryland
Joy Chang, M.D. is one of 24 addiction psychiatry physician records with a practice address in Maryland. 63% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 75% of them.
- NPI issued2011 · 75% of these records are older, 21% newer
- In a Medicare fileYes · 63% of these records are
- In the CMS Doctors and Clinicians fileYes · 29% of these records are
- Record last updated2016 · 79% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0802X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Addiction Psychiatry Physician providers in Maryland
There are 24 addiction psychiatry physician records in Maryland.
All 24 in Maryland → Every provider in Baltimore → Addiction Psychiatry Physician nationwide →
The 8 addiction psychiatry physician records with the nearest ZIP codes
- Christopher Holt, MDBaltimore, MD 212011518115500
- Joseph Liberto, M.D.Baltimore, MD 212011699737684
- Avinash Ramprashad, M.D.Baltimore, MD 212011508228974
- Elizabeth Stuller, MDBaltimore, MD 212011326177718
- Benjamin EhrenreichBaltimore, MD 212041285029199
- Sylvia Atdjian, M.D.Baltimore, MD 212051558458976
- Moira Bogrov, M.D.Baltimore, MD 212151649233073
- Nicholas Scotto, M.D.Baltimore, MD 212231760507925
Common questions
What is Joy Chang, M.D.'s NPI number?
Joy Chang, M.D.'s National Provider Identifier (NPI) is 1154620540, issued on Mar 24, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Joy Chang, M.D. located?
The NPPES record lists a practice address at 110 S Paca St, Baltimore, MD, 21201. Phone: (410) 328-1834. Providers update this record themselves, so call before visiting.
How can I verify Joy Chang, M.D.'s license?
NPPES lists Maryland license number D0076718, 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.
How much does Joy Chang, M.D. prescribe under Medicare Part D?
In 2024, Joy Chang, M.D. had 1,937 Medicare Part D claims for 239 beneficiaries; the average among addiction psychiatry physician prescribers was 716. Part D covers Medicare prescriptions only.
What is Joy Chang, M.D.'s MIPS final score?
The 2023 MIPS final score is 100 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.