Registry data as of Aug 27, 2026

Kristen Callanan

Social Worker · Buffalo, NY

Kristen Callanan is a social worker with a practice address in Buffalo, New York, and NPI 1245877273, issued on Dec 10, 2019. Check the license (New York 112403, as entered in NPPES) with the New York board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, loaded Aug 27, 2026 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1245877273
Name
Kristen Callanan
Primary taxonomy
Social Worker 104100000X
License number
112403 NY
Self-reported in NPPES; status is on the state search
Practice location
300 Niagara St, Buffalo, NY 14201
Phone
(716) 242-8600
Enumerated
Dec 10, 2019
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 300 Niagara St

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

  1. Sofia AdamsSurgical Physician Assistant1306668769
  2. Tracie Barletta, FNP-BCRegistered Nurse1700202520
  3. Hussein Bazzi, DPMPodiatrist1467029934
  4. Danielle Behlok, PAPhysician Assistant1407743735
  5. Raynaldo Betances, PAPhysician Assistant1447886700
  6. John Brewer, MDFamily Medicine Physician1700870425

Verify Kristen Callanan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich New York board licenses this profession
    Search for license 112403
    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 New York 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.

557 social worker records list a Buffalo practice address

They are 557 of the 13,287 NPPES records with a Buffalo practice address, and 24,800 social worker records in New York. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other social worker records in New York

  1. Sheila AagnerNew York, NY1801720784
  2. Desiree AaronBronx, NY1851277875
  3. Joy Aaron, LMSWAlbany, NY1295376192
  4. Shawna Marie Aarons-Cooke, LCSWNew Rochelle, NY1700060076
  5. Fay Aaronson, LCSW-RMargaretville, NY1710253224
  6. Iliana Abad, LMSWBrooklyn, NY1427328194
  7. Samantha AbadNew York, NY1831948561
  8. Angelyse Abalco, LMSWSmithtown, NY1083255251
  9. Nicola Abbadessa, LCSWRego Park, NY1235239310
  10. Fadhil AbbasBuffalo, NY1588222418

Common questions

What is Kristen Callanan's NPI number?

Kristen Callanan's National Provider Identifier (NPI) is 1245877273, issued on Dec 10, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Kristen Callanan located?

The NPPES record lists a practice address at 300 Niagara St, Buffalo, NY, 14201. Phone: (716) 242-8600. Providers update this record themselves, so call before visiting.

How can I verify Kristen Callanan's license?

NPPES lists New York license number 112403, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.