Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

David Chang

Individual provider Internal Medicine Physician · NPI 1457730269

David Chang is registered under Cardiovascular Disease (Cardiology) in Boston, Massachusetts. Qualified in 2015, 11 years ago. Practices with Speare Memorial Hospital, a 49-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Illinois and Massachusetts.

Years since qualifying
11
Licensed in
IL, MA
In the registry since
2015
Specialties on file
2
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Practice location Address checks out

75 Francis St
Boston, MA 02115-6110
Phone: (857) 307-4000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Cardiovascular Disease Physician (primary) Taxonomy 207RC0000X · Licence 287337 (MA)
Internal Medicine Physician Taxonomy 207R00000X · Licence MT209154 (IL)

Record details

NPI number1457730269
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorYes
NPI enumeratedMay 26, 2015
Last updated in NPPESApril 3, 2023
Certification dateApril 3, 2023

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCARDIOVASCULAR DISEASE (CARDIOLOGY)
Also practisesCARDIAC ELECTROPHYSIOLOGY
Medical schoolOTHER
Graduated 2015 (11 years in practice)
Group practice Speare Memorial Hospital — 49 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Pacemaker insertion or repair 56 times · 91st percentile

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients2,687
Services billed 5,630 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Consulting Fee $1,950 1 payment
Compensation for services other than consulting , including serving as faculty or as a speaker at a venue other than a continuing education program $1,875 4 payments
Travel and Lodging $1,191 4 payments · travel or lodging paid or reimbursed, such as to attend a conference
Food and Beverage $1,079 30 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Speare Memorial Hospital

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 49 clinicians in the practice; 12 are shown here.

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