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STEVEN GUICHELAAR NP
NPI 1427476811
Nurse Practitioner - Psychiatric/Mental Health in North Haven, CT

Active since April 02, 2014PECOS EnrolledAccepts Medicare Assignment
556 WASHINGTON AVE STE 201, NORTH HAVEN, CT 06473(203) 779-5799(203) 599-0260 Get Directions Write a Review

NPPES record last updated: October 9, 2025. Verified against the NPPES registry weekly; last sync: September 27, 2026.

Record update history: Oct 9, 2025, Feb 17, 2025, Sep 1, 2020 (3 updates tracked since 2020).

About Steven Guichelaar Np NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

STEVEN GUICHELAAR NP (NPI 1427476811) is an individual psychiatric/mental health provider in North Haven, Connecticut, licensed in Connecticut (12.013275) and active in the NPI registry since April 2014. He is enrolled in Medicare PECOS, maintains 10 additional practice locations, and is a graduate of Other (2014).

NPPES Registry Identity

NPI1427476811
Entity TypeIndividualMale
Primary Taxonomy363LP0808X
Provider Legal NameSTEVEN GUICHELAARCredential: NP
Location Address556 WASHINGTON AVE STE 201North Haven, CT 06473-1149
Mailing Address853 E Southern AveIndianapolis, IN 46203-5156 · (317) 902-8715
Phone(203) 779-5799
Fax(203) 599-0260
Sole ProprietorNo
Medical School CMSOtherGraduated 2014
Enumeration DateApril 2, 2014
Last NPPES UpdateOctober 9, 20253 updates tracked since enumeration
NPPES CertifiedOctober 9, 2025
✔ NPI 1427476811 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0808X
Licenses✔ Licensed in CT · 12.013275✔ Licensed in IN · 71004912A✔ Licensed in GA · GAA-NP002139✔ Licensed in VA · 0024189657✔ Licensed in KY · 4017019✔ Licensed in MA · RN10004996✔ Licensed in ME · CNP241373✔ Licensed in NH · 093521-23✔ Licensed in OH · APRN.CNP.0035978✔ Licensed in FL · APRN11032714✔ Licensed in RI · APRN04079
Also ListedRegistered NurseTaxonomy 163W00000X · License 28196369A (IN)
556 WASHINGTON AVE STE 201, North Haven, CT 06473
Open in Google Maps ↗

Secondary Practice Locations 10

Location 11041 Ten Rod Rd Unit 8North Kingstown, RI 02852-4125 · Phone (401) 232-4166
Location 26505 E 82nd StIndianapolis, IN 46250-5538 · Phone (317) 779-0310
Location 39 Pond Ln Ste 105Concord, MA 01742-2842 · Phone (617) 430-4949
Location 47400 New La Grange Rd Ste 250Louisville, KY 40222-8801 · Phone (502) 907-2290
Location 56161 Oak Tree BlvdIndependence, OH 44131-2516 · Phone (216) 200-4415
Location 6500 Southborough Dr Ste 205South Portland, ME 04106-6959 · Phone (207) 813-4167
Location 71625 S Congress Ave Ste 406Delray Beach, FL 33445-6304 · Phone (561) 418-3262
Location 84405 Cox Rd Ste 150Glen Allen, VA 23060-6764 · Phone (804) 208-0475
Location 915 Constitution Dr Ste 2NBedford, NH 03110-6002 · Phone (603) 769-8462
Location 101775 The Exchange SE Ste 610Atlanta, GA 30339-2051 · Phone (770) 526-0535

Other Identifiers 3

Medicaid201228430IN
Other000000876664IN · Anthem
Other000000876487IN · Anthem

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Sheld, Anthem Blue Cross and Blue Shield, CareSource and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Steven Guichelaar Np is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID840414587
PECOS Enrollment IDI20140619000222
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 06473 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$93.86 typical visit price
range $60.82 – $183.10
Typical copayment $23.46 (range $15.20 – $45.77)
Most-billed visit code 99203
Established Patient
$106.68 typical visit price
range $19.76 – $149.26
Typical copayment $26.67 (range $4.94 – $37.31)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

AIZA SALAZAR NIMEH ARNP
Nurse Practitioner (Psychiatric/Mental Health)
556 WASHINGTON AVE STE 201
NORTH HAVEN, CT 06473
South Central Connecticut Planning Region (203) 347-0407

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Steven Guichelaar's NPI number?

The NPI number for Steven Guichelaar is 1427476811. It was assigned to this individual provider in the NPPES registry on April 2, 2014.

Where is Steven Guichelaar located?

Steven Guichelaar practices at 556 Washington Ave Ste 201, North Haven, CT 06473. The listed phone number is (203) 779-5799.

What is Steven Guichelaar's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Is Steven Guichelaar enrolled in Medicare?

Yes. Steven Guichelaar is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Steven Guichelaar accept?

Health plans from Anthem Blue Cross and Blue Sheld, Anthem Blue Cross and Blue Shield, CareSource and Providence Health Plan list Steven Guichelaar as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Steven Guichelaar was last updated on October 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.