NPPES file of Aug 9, 2026

Claudia J. Wittenzellner, APRN

Neonatal Nurse Practitioner · Farmington, CT

Claudia J. Wittenzellner, APRN is a neonatal nurse practitioner with a practice address in Farmington, Connecticut, and NPI 1568529667, issued on Jan 2, 2007. Check the license (Connecticut 001163, as entered in NPPES) with the Connecticut 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
1568529667
Name
Claudia J. Wittenzellner
Credential
APRN
Primary taxonomy
Neonatal Nurse Practitioner 363LN0000X
License number
001163 CT
Self-reported in NPPES; status is on the state search
Practice location
John Dempsey Hospital, Farmington, CT 06030
Phone
(860) 679-3449
Enumerated
Jan 2, 2007
Record last updated
May 27, 2008 (not updated in 18 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 John Dempsey Hospital

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

  1. John Agar, DDSProsthodontics1003971557
  2. Barbara Baron, APRNAcute Care Nurse Practitioner1114083078
  3. Rita Brzozowski, LCSWClinical Social Worker1649336231
  4. Robert Clark, MDInternal Medicine Physician1780749002
  5. Soni Clubb, M.D.Emergency Medicine Physician1376566760
  6. Elaine Cournean, APRNPrimary Care Nurse Practitioner1407191034

Verify Claudia J. Wittenzellner in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
    Search for license 001163
    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 Connecticut license search

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Claudia J. Wittenzellner among 49 neonatal nurse practitioner records in Connecticut

Claudia J. Wittenzellner, APRN is one of 49 neonatal nurse practitioner records with a practice address in Connecticut. 4% 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 2007, is newer than 37% of them.

  • NPI issued2007 · 37% of these records are older, 55% newer
  • In a Medicare fileNo · 4% of these records are
  • In the CMS Doctors and Clinicians fileNo · 4% of these records are
  • Record last updated2008 · 65% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LN0000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neonatal Nurse Practitioner providers in Connecticut

There are 49 neonatal nurse practitioner records in Connecticut. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 neonatal nurse practitioner records with the nearest ZIP codes

  1. Karen Cleaveland, APRNFarmington, CT 060301184895401
  2. Nicole Duguay, APRNFarmington, CT 060301619033594
  3. Maria Haar, APRNFarmington, CT 060301669539540
  4. Sharon Kelly, APRNFarmington, CT 060301184772923
  5. Wendy Petow, APRNFarmington, CT 060301538217377
  6. Karen Pietruszkiewicz, APRNFarmington, CT 060301780856484
  7. Christine Raymond, APRNFarmington, CT 060301124316419
  8. Jean Bender, APRNManchester, CT 060401275505828

Common questions

What is Claudia J. Wittenzellner, APRN's NPI number?

Claudia J. Wittenzellner, APRN's National Provider Identifier (NPI) is 1568529667, issued on Jan 2, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Claudia J. Wittenzellner, APRN located?

The NPPES record lists a practice address at John Dempsey Hospital, Farmington, CT, 06030. Phone: (860) 679-3449. Providers update this record themselves, so call before visiting.

How can I verify Claudia J. Wittenzellner, APRN's license?

NPPES lists Connecticut license number 001163, as entered by the provider. Search the Connecticut 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.