John Michalak, APRN
NPI 1336890136 · Nurse Practitioner · New London, CT
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Michalak, APRN is a Nurse Practitioner provider in New London, CT (NPI 1336890136).
Provider details
- NPI number
- 1336890136
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APRN
- Sex
- Male
- Sole proprietor
- Yes
- License
- 12294 (CT)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
4 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
294 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Drainage of Fluid From Abdominal Cavity Using Imaging Guidance49083 | 89 | $91 |
| Aspiration of Fluid From Chest Cavity Using Imaging Guidance32555 | 51 | $93 |
| Removal of Tunneled Central Venous Tube36589 | 33 | $118 |
| Use of a Drug to Induce Depression of Consciousness By Physician Performing a Procedure (5 Years Or Older), Initial 15 Minutes99152 | 27 | $11 |
| Fine Needle Aspiration Biopsy Using Ultrasound Guidance, First Growth10005 | 24 | $63 |
| Fluoroscopic Guidance for Insertion Or Removal of Central Vein Access Device77001 | 22 | $15 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2022-01-12
- Last updated
- 2023-09-08
- Certified
- 2023-09-08
Frequently asked questions
- What is John Michalak's NPI number?
- John Michalak's National Provider Identifier (NPI) is 1336890136, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Michalak's specialty?
- John Michalak is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is John Michalak located?
- John Michalak's practice location on file with NPPES is 365 Montauk Ave, New London, CT 06320-4700.
- What is John Michalak's phone number?
- The practice phone number listed in the NPPES registry for John Michalak is (860) 444-5151.
- Does John Michalak accept Medicare?
- John Michalak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Michalak's NPI active?
- Yes — John Michalak's NPI (1336890136) is active in the NPPES registry as of the last update on 2023-09-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.