NPPES file of Aug 9, 2026

Celia Gatsas, OTR/L

Specialist · Merrimack, NH

Celia Gatsas, OTR/L is a specialist with a practice address in Merrimack, New Hampshire, and NPI 1710962790, issued on Dec 13, 2005. Check the license with the New Hampshire board that licenses this profession; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1710962790
Name
Celia Gatsas
Credential
OTR/L
Primary taxonomy
Specialist 174400000X
License number
008244-1 NY
Self-reported in NPPES; status is on the state search
Practice location
11 Continental Blvd Ste A, Merrimack, NH 03054
Phone
(603) 424-1950
Enumerated
Dec 13, 2005
Record last updated
Nov 30, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20220315002342); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 11 Continental Blvd Ste A

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

  1. Heather Bowen, DPTPhysical Therapist1689789265
  2. Katherine Cavallaro, DPTPhysical Therapist1215417712
  3. Kelly Dobe, P.T., D.P.T., C.L.TPhysical Therapist1063548006
  4. Diane Donahue, COTAOccupational Therapy Assistant1508705443
  5. Katie FinkenSpeech-Language Pathologist1790331098
  6. Kinga Hum, PTPhysical Therapist1104322494

Verify Celia Gatsas in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich New Hampshire board licenses this professionCheck 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 Hampshire 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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Bills Medicare through one group practice

  1. Fox Rehab-NH, LLCBedford, NH

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Celia Gatsas among 1,010 specialist records in New Hampshire

Celia Gatsas, OTR/L is one of 1,010 specialist records with a practice address in New Hampshire. 2% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 99% newer
  • In a Medicare fileYes · 2% of these records are
  • In the CMS Doctors and Clinicians fileYes · 2% of these records are
  • Graduated1996 · median 1985 among the 17 with a school on file
  • Record last updated2020 · 71% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a New Hampshire practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

5 specialist records list a practice address in Merrimack

They are 5 of the 270 NPPES records with a practice address in Merrimack, and 1,010 specialist records in New Hampshire.

The 8 specialist records with the nearest ZIP codes

  1. Allyssa Bedard, L.M.T.Merrimack, NH 030541851777437
  2. Mary Catherine LavalleeMerrimack, NH 030541932028834
  3. Noelle Frauton, O.T.Merrimack, NH 030541427123264
  4. Edward Holdgate, PTAMerrimack, NH 030541790111425
  5. Mark Detweiler, M.D.Londonderry, NH 030531548344583
  6. Blair Macdonald, DPTLondonderry, NH 030531598994196
  7. Todd Brede, PSY.DLitchfield, NH 030521841232220
  8. Rebecca DecotiisHudson, NH 030511497154256

Common questions

What is Celia Gatsas, OTR/L's NPI number?

Celia Gatsas, OTR/L's National Provider Identifier (NPI) is 1710962790, issued on Dec 13, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Celia Gatsas, OTR/L located?

The NPPES record lists a practice address at 11 Continental Blvd Ste A, Merrimack, NH, 03054. Phone: (603) 424-1950. Providers update this record themselves, so call before visiting.

How can I verify Celia Gatsas, OTR/L's license?

Search the New Hampshire 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. 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.