Pei-Ling Chang, MD
Internal Medicine Physician · Boston, MA
Pei-Ling Chang, MD is an internal medicine physician with a practice address in Boston, Massachusetts, and NPI 1275111742, issued on Mar 29, 2021. Check the license (Massachusetts 1024522, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Pei-Ling Chang
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 1024522 MA
Self-reported in NPPES; status is on the state search - Practice location
- 801 Massachusetts Ave Ste 5C, Boston, MA 02118
- Phone
- (617) 414-5951
- Enumerated
- Mar 29, 2021
- Record last updated
- Oct 14, 2025
- Medicare enrollment
- Enrolled (PECOS I20251114000229); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 6,825 in Massachusetts → Look up another NPI →
Also registered at 801 Massachusetts Ave Ste 5C
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Aletheia Shen, FNP-CFamily Nurse Practitioner1386159069
- Kianna Warner, NPNurse Practitioner1982357612
Verify Pei-Ling Chang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 1024522Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average internal medicine physician in 2024
177 Medicare Part D claims for 48 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.
Most prescribed
- Atorvastatin Calcium11 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.
Bills Medicare through one group practice
- Evans Medical Foundation IncBoston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Pei-Ling Chang among 6,825 internal medicine physician records in Massachusetts
Pei-Ling Chang, MD 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 2021, is newer than 89% of them.
- NPI issued2021 · 89% of these records are older, 8% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2019 · median 2004 among the 4,103 with a school on file
- Record last updated2025 · 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).
2,320 internal medicine physician records list a practice address in Boston
They are 2,320 of the 41,865 NPPES records with a practice address in Boston, and 6,825 internal medicine physician records in Massachusetts.
All 6,825 in Massachusetts → Every provider in Boston → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Daniel Alford, M.D., M.P.H.Boston, MA 021181194708628
- Lori Balestrero, MDBoston, MA 021181750384046
- Virginia Barrow, M.D.Boston, MA 021181639175466
- Monica Bharel, MDBoston, MA 021181093798084
- Claire Carlo, M.D.Boston, MA 021181336125871
- Chava Chapman, M.D., M.P.H.Boston, MA 021181558346239
- Paul Fallon, MDBoston, MA 021181437145927
- Irene Gavras, M.D.Boston, MA 021181619953601
Common questions
What is Pei-Ling Chang, MD's NPI number?
Pei-Ling Chang, MD's National Provider Identifier (NPI) is 1275111742, issued on Mar 29, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Pei-Ling Chang, MD located?
The NPPES record lists a practice address at 801 Massachusetts Ave Ste 5C, Boston, MA, 02118. Phone: (617) 414-5951. Providers update this record themselves, so call before visiting.
How can I verify Pei-Ling Chang, MD's license?
NPPES lists Massachusetts license number 1024522, 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 Pei-Ling Chang, MD prescribe under Medicare Part D?
In 2024, Pei-Ling Chang, MD had 177 Medicare Part D claims for 48 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.