NPPES file of Aug 9, 2026

John Alexander Michalak, APRN

Nurse Practitioner · New London, CT

John Alexander Michalak, APRN is a nurse practitioner with a practice address in New London, Connecticut, and NPI 1336890136, issued on Jan 12, 2022. Check the license (Connecticut 12294, as entered in NPPES) with the Connecticut 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
1336890136
Name
John Alexander Michalak
Credential
APRN
Primary taxonomy
Nurse Practitioner 363L00000X
License number
12294 CT
Self-reported in NPPES; status is on the state search
Practice location
365 Montauk Ave, New London, CT 06320
Phone
(860) 444-5151
Enumerated
Jan 12, 2022
Record last updated
Sep 8, 2023
Medicare enrollment
Enrolled (PECOS I20230922001196); 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 365 Montauk Ave

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

  1. Gada Abdelhafiz, MDInternal Medicine Physician1467649558
  2. Mariam Aboukar, D.O.Psychiatry Physician1013448620
  3. Tyler Ackley, PHARMDPharmacist1326632514
  4. Luke Ackroyd, CRNACertified Registered Nurse Anesthetist1982640348
  5. Theresa Adams, M.D.Emergency Medicine Physician1457678138
  6. Syeda Kanza AfzalInternal Medicine Physician1043943046

Verify John Alexander Michalak 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 12294
    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

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. Ocean Radiology Associates PCNew London, CT

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

John Alexander Michalak among 922 nurse practitioner records in Connecticut

John Alexander Michalak, APRN is one of 922 nurse practitioner records with a practice address in Connecticut. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 73% of them.

  • NPI issued2022 · 73% of these records are older, 21% newer
  • In a Medicare fileYes · 72% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated2023 · median 2018 among the 522 with a school on file
  • Record last updated2023 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

18 nurse practitioner records list a practice address in New London

They are 18 of the 1,218 NPPES records with a practice address in New London, and 922 nurse practitioner records in Connecticut.

The 8 nurse practitioner records with the nearest ZIP codes

  1. Skyla Cedano, APRNNew London, CT 063201013757962
  2. Kellie Coleman, DC, MSN, FNP-CNew London, CT 063201659865665
  3. Teresa D'Errico, APRNNew London, CT 063201356384556
  4. Jo-Ann Deloge, APRNNew London, CT 063201174611628
  5. Joann Eaccarino, APRNNew London, CT 063201295743201
  6. Nancy Grant, PNPNew London, CT 063201023024965
  7. Tamar Hirshberg, APRNNew London, CT 063201356416010
  8. Tara Hood, NPNew London, CT 063201629043997

Common questions

What is John Alexander Michalak, APRN's NPI number?

John Alexander Michalak, APRN's National Provider Identifier (NPI) is 1336890136, issued on Jan 12, 2022. An NPI identifies a provider in billing; it is not a license.

Where is John Alexander Michalak, APRN located?

The NPPES record lists a practice address at 365 Montauk Ave, New London, CT, 06320. Phone: (860) 444-5151. Providers update this record themselves, so call before visiting.

How can I verify John Alexander Michalak, APRN's license?

NPPES lists Connecticut license number 12294, 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. 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.