Grace Chou Chang, DO
Colon & Rectal Surgery Physician · Morristown, NJ
Grace Chou Chang, DO is a colon & rectal surgery physician with a practice address in Morristown, New Jersey, and NPI 1033772280, issued on Apr 15, 2019. Check the license on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Grace Chou Chang
- Credential
- DO
- Primary taxonomy
- Colon & Rectal Surgery Physician 208C00000X
- License number
- OP61568815 WA
Self-reported in NPPES; status is on the state search - Practice location
- 100 Madison Ave, Morristown, NJ 07960
- Phone
- (973) 971-5000
- Enumerated
- Apr 15, 2019
- Record last updated
- Nov 3, 2025
- Medicare enrollment
- Enrolled (PECOS I20240813003009); may accept Medicare assignment
- Medical or professional school
- At Still Un Of Hlth Sciences, Col Of Osteo Med, Mesa, 2019
- Entity
- Type 1 · individual
8 nearest colon & rectal surgery physician records → All 95 in New Jersey → Look up another NPI →
Also registered at 100 Madison Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Omar Abdelfattah, MBBCHStudent in an Organized Health Care Education/Training Program1003444167
- Ahmed Abdelhalim, MDInternal Medicine Physician1104386051
- Bavly Abdelmesih, MDStudent in an Organized Health Care Education/Training Program1932901378
- Fatema Abdulhussein, MDStudent in an Organized Health Care Education/Training Program1235514274
- Arkadiy Abkin, MDAnesthesiology Physician1316928666
Verify Grace Chou Chang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Jersey State Board of Medical ExaminersCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
57% fewer Medicare Part D claims than the average colon & rectal surgery physician in 2024
83 Medicare Part D claims for 31 beneficiaries, against an average of 192 among the 1,836 providers of this specialty who prescribed in Part D. 27 claims were for opioids.
Most prescribed
- Methocarbamol17 claims
- Tramadol Hcl13 claims
- Oxycodone Hcl12 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: $19.60
1 payment: food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 1,524 providers of this specialty with any payment received $3,468.16 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.
Grace Chou Chang among 95 colon & rectal surgery physician records in New Jersey
Grace Chou Chang, DO is one of 95 colon & rectal surgery physician records with a practice address in New Jersey. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 96% of them.
- NPI issued2019 · 96% of these records are older, 2% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 76% of these records are
- Graduated2019 · median 2001 among the 72 with a school on file
- Record last updated2025 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208C00000X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Colon & Rectal Surgery Physician providers in New Jersey
There are 95 colon & rectal surgery physician records in New Jersey.
All 95 in New Jersey → Every provider in Morristown → Colon & Rectal Surgery Physician nationwide →
The 8 colon & rectal surgery physician records with the nearest ZIP codes
- Meagan Derbyshire, MDMorristown, NJ 079601790273969
- Joseph FlanaganMorristown, NJ 079601649701319
- Daniel Hunt, M.D.Morristown, NJ 079601831350354
- Varun KrishnanMorristown, NJ 079601962893933
- Richard Moskowitz, MDMorristown, NJ 079601689649030
- Steven Porbunderwala, M.D.Florham Park, NJ 079321417101502
- Farshad Abir, M.D.Berkeley Heights, NJ 079221871542662
- Valerie Bauer, MDCherry Hill, NJ 080021609812353
Common questions
What is Grace Chou Chang, DO's NPI number?
Grace Chou Chang, DO's National Provider Identifier (NPI) is 1033772280, issued on Apr 15, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Grace Chou Chang, DO located?
The NPPES record lists a practice address at 100 Madison Ave, Morristown, NJ, 07960. Phone: (973) 971-5000. Providers update this record themselves, so call before visiting.
How can I verify Grace Chou Chang, DO's license?
Search the New Jersey State Board of Medical Examiners at https://newjersey.mylicense.com/verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Grace Chou Chang, DO prescribe under Medicare Part D?
In 2024, Grace Chou Chang, DO had 83 Medicare Part D claims for 31 beneficiaries; the average among colon & rectal surgery physician prescribers was 192. 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.