Physician Profile
Daniel A. Castellanos, M.D.
Unclaimed ProfileAbout Dr. Castellanos
Based in Boston, MA, Daniel A. Castellanos, M.D. is listed in the NPI registry under pediatric cardiology. Daniel graduated from Florida International Univ, College of Medicine in 2013.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (617) 355-6000
- Email not available
Practice Locations
300 LONGWOOD AVE
Boston, MA 02115
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other pediatric cardiology specialists at this location 2
Same specialty, same street address — most likely the same department or group.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other pediatric cardiology specialists in Boston 6
Same specialty, same city.
More connections — 8 related providers in 1 group
Class of 2013 at Florida International Univ, College of Medicine 8
Providers who graduated from the same medical school in the same year.
Common questions
What kind of doctor is Daniel A. Castellanos?
Daniel A. Castellanos is a pediatric cardiology in Boston, MA. That is the designation recorded for this NPI in the federal registry.
NPI registry
What is Daniel A. Castellanos's address?
Daniel A. Castellanos is listed at 300 Longwood Ave, Boston, MA 02115. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Daniel A. Castellanos?
The number on file is (617) 355-6000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Daniel A. Castellanos's NPI number?
Daniel A. Castellanos's National Provider Identifier is 1003298126. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Daniel A. Castellanos train?
Daniel A. Castellanos attended Florida International Univ, College of Medicine, graduating in 2013. This comes from the CMS National Downloadable File.
CMS public data
How long has Daniel A. Castellanos been practicing?
Daniel A. Castellanos has 13 years experience. Calculated from a graduation year of 2013, reported in the CMS National Downloadable File.
CMS public data
Has Daniel A. Castellanos confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Daniel A. Castellanos. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.