Alexander Ly, D.O
Internal Medicine Physician · Springfield, MA
Alexander Ly, D.O is an internal medicine physician with a practice address in Springfield, Massachusetts, and NPI 1710369798, issued on Jun 25, 2015. Check the license (Massachusetts 279467, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Alexander Ly
- Credential
- D.O
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 279467 MA
Self-reported in NPPES; status is on the state search - Practice location
- 759 Chestnut St, Springfield, MA 01199
- Phone
- (413) 794-0000
- Enumerated
- Jun 25, 2015
- Record last updated
- Jun 27, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20190611003305); 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 759 Chestnut St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Alexander Ly in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 279467Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Baystate Medical Practices IncPalmer, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Alexander Ly among 6,825 internal medicine physician records in Massachusetts
Alexander Ly, D.O 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 2015, is newer than 74% of them.
- NPI issued2015 · 74% of these records are older, 23% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2015 · median 2004 among the 4,103 with a school on file
- Record last updated2019 · 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).
282 internal medicine physician records list a practice address in Springfield
They are 282 of the 8,553 NPPES records with a practice address in Springfield, and 6,825 internal medicine physician records in Massachusetts.
All 6,825 in Massachusetts → Every provider in Springfield → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Ronan Ali, M.D.Springfield, MA 011991578761490
- Susan Borden, M.D.Springfield, MA 011991558514083
- Mohamed Elarabi, M.DSpringfield, MA 011991154515880
- Loring Flint, MDSpringfield, MA 011991255426532
- Ejaz KhalidSpringfield, MA 011991205099553
- Christopher Lachance, MDSpringfield, MA 011991922019553
- Donna Mercado, M.D.Springfield, MA 011991346267705
- Mohamed Mohamed, MDSpringfield, MA 011991760623102
Common questions
What is Alexander Ly, D.O's NPI number?
Alexander Ly, D.O's National Provider Identifier (NPI) is 1710369798, issued on Jun 25, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Alexander Ly, D.O located?
The NPPES record lists a practice address at 759 Chestnut St, Springfield, MA, 01199. Phone: (413) 794-0000. Providers update this record themselves, so call before visiting.
How can I verify Alexander Ly, D.O's license?
NPPES lists Massachusetts license number 279467, 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.
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.