NPPES file of Aug 9, 2026

Ian Karby, PT, DPT, ATC

Physical Therapist · Boston, MA

Ian Karby, PT, DPT, ATC is a physical therapist with a practice address in Boston, Massachusetts, and NPI 1043896426, issued on Mar 24, 2021. Check the license (Massachusetts 25373, as entered in NPPES) with the Massachusetts board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1043896426
Name
Ian Karby
Credential
PT, DPT, ATC
Primary taxonomy
Physical Therapist 225100000X
License number
25373 MA
Self-reported in NPPES; status is on the state search
Practice location
63 Melcher St Ste 100, Boston, MA 02210
Phone
(617) 536-1161
Enumerated
Mar 24, 2021
Record last updated
Mar 24, 2021 (not updated in 5 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 63 Melcher St Ste 100

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Elicia Hickey, DPTPhysical Therapist1093155129
  2. David Larson, MSPTPhysical Therapist1740288927
  3. Rebecca Rivera, PT, DPTPhysical Therapist1083429443

Verify Ian Karby in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
    Search for license 25373
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Massachusetts license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Ian Karby among 7,100 physical therapist records in Massachusetts

Ian Karby, PT, DPT, ATC is one of 7,100 physical therapist records with a practice address in Massachusetts. 31% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2021, is newer than 76% of them.

  • NPI issued2021 · 76% of these records are older, 20% newer
  • In a Medicare fileNo · 31% of these records are
  • In the CMS Doctors and Clinicians fileNo · 33% of these records are
  • Record last updated2021 · 66% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 225100000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

810 physical therapist records list a practice address in Boston

They are 810 of the 41,865 NPPES records with a practice address in Boston, and 7,100 physical therapist records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 physical therapist records with the nearest ZIP codes

  1. Brittney Botica, DPTBoston, MA 022101558870469
  2. Judith Hershberg, PT, DPT, MSBoston, MA 022101801834635
  3. Elicia Hickey, DPTBoston, MA 022101093155129
  4. Catherine Lane, PT, DPT, MSBoston, MA 022101942249602
  5. David Larson, MSPTBoston, MA 022101740288927
  6. Rachael McGuinness, PTBoston, MA 022101629450499
  7. Jason McHugh, DPTBoston, MA 022101912175571
  8. Mary McPherson, DPTBoston, MA 022101982187951

Common questions

What is Ian Karby, PT, DPT, ATC's NPI number?

Ian Karby, PT, DPT, ATC's National Provider Identifier (NPI) is 1043896426, issued on Mar 24, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Ian Karby, PT, DPT, ATC located?

The NPPES record lists a practice address at 63 Melcher St Ste 100, Boston, MA, 02210. Phone: (617) 536-1161. Providers update this record themselves, so call before visiting.

How can I verify Ian Karby, PT, DPT, ATC's license?

NPPES lists Massachusetts license number 25373, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity 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. 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.