David Chiang, M.D
Internal Medicine Physician · Norwell, MA
David Chiang, M.D is an internal medicine physician with a practice address in Norwell, Massachusetts, and NPI 1124219506, issued on Aug 9, 2007. Check the license (Massachusetts 238827, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- David Chiang
- Credential
- M.D
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 238827 MA
Self-reported in NPPES; status is on the state search - Practice location
- 143 Longwater Dr, Norwell, MA 02061
- Phone
- (781) 878-5200
- Enumerated
- Aug 9, 2007
- Record last updated
- Mar 17, 2016 (not updated in 10 years: call before relying on the address or phone)
- Medicaid ID
- 1100836977A MA
- Medicare enrollment
- Enrolled (PECOS I20090702000024); accepts Medicare assignment
- Medical or professional school
- Temple University School Of Medicine, 2005
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 6,825 in Massachusetts → Look up another NPI →
Also registered at 143 Longwater Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Khalil Alleyne, MDFamily Medicine Physician1003092081
- Mia Ames, PA-CPhysician Assistant1407331440
- Jennifer Amon, CPNPPediatric Nurse Practitioner1679557987
- Erin Anderson, PAPhysician Assistant1164838926
- Kimberly Azulay-Williams, FNPFamily Nurse Practitioner1427671601
- Anna Barbosa, MDInternal Medicine Physician1396960977
Verify David Chiang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 238827Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
5.9 times the Medicare Part D claims of the average internal medicine physician in 2024
18,707 Medicare Part D claims for 1,357 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 1,962 claims were for opioids.
Most prescribed
- Atorvastatin Calcium901 claims
- Lisinopril715 claims
- Oxycodone Hcl657 claims
- Gabapentin563 claims
- Omeprazole517 claims
- Amlodipine Besylate513 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): 74.8 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 2 group practices
- Pembroke Medical Associates IncPembroke, MA
- South Shore Medical Center, Inc.Plymouth, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
David Chiang among 6,825 internal medicine physician records in Massachusetts
David Chiang, M.D is one of 6,825 internal medicine physician records with a practice address in Massachusetts. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 46% of them.
- NPI issued2007 · 46% of these records are older, 45% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2005 · median 2004 among the 4,103 with a school on file
- Record last updated2016 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
17 internal medicine physician records list a practice address in Norwell
They are 17 of the 981 NPPES records with a practice address in Norwell, and 6,825 internal medicine physician records in Massachusetts.
All 6,825 in Massachusetts → Every provider in Norwell → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Anna Barbosa, MDNorwell, MA 020611396960977
- Leyda Delgado, MDNorwell, MA 020611174509004
- David Halle, M.D.Norwell, MA 020611659357689
- Robert Kasabian, MDNorwell, MA 020611912989492
- Timothy Lynch, MDNorwell, MA 020611891720892
- Robert Mellors, MDNorwell, MA 020611598756991
- Erin Morrissette, MDNorwell, MA 020611124182233
- Michele Mudgett, MDNorwell, MA 020611821070897
Common questions
What is David Chiang, M.D's NPI number?
David Chiang, M.D's National Provider Identifier (NPI) is 1124219506, issued on Aug 9, 2007. An NPI identifies a provider in billing; it is not a license.
Where is David Chiang, M.D located?
The NPPES record lists a practice address at 143 Longwater Dr, Norwell, MA, 02061. Phone: (781) 878-5200. Providers update this record themselves, so call before visiting.
How can I verify David Chiang, M.D's license?
NPPES lists Massachusetts license number 238827, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does David Chiang, M.D prescribe under Medicare Part D?
In 2024, David Chiang, M.D had 18,707 Medicare Part D claims for 1,357 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is David Chiang, M.D's MIPS final score?
The 2023 MIPS final score is 74.8 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.