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KRISTOFER MARK ISAKSEN LCSW
NPI 1790337590
Social Worker - Clinical in Baldwin, NY

Active since July 11, 2019PECOS Enrolled
2277 GRAND AVE, BALDWIN, NY 11510(516) 377-5400(516) 377-5490 Get Directions Write a Review

NPPES record last updated: March 26, 2024. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Kristofer Mark Isaksen Lcsw NPPES

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

KRISTOFER MARK ISAKSEN LCSW (NPI 1790337590) is an individual clinical provider in Baldwin, New York, licensed in New York (096585) and active in the NPI registry since July 2019. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1790337590
Entity TypeIndividualMale
Primary Taxonomy1041C0700X
Provider Legal NameKRISTOFER MARK ISAKSENCredential: LCSW
Location Address2277 GRAND AVEBaldwin, NY 11510-3148
Mailing Address7 Bluetop RdEast Setauket, NY 11733-1906 · (631) 942-8374
Phone(516) 377-5400
Fax(516) 377-5490
Sole ProprietorNo
Enumeration DateJuly 11, 2019
Last NPPES UpdateMarch 26, 2024
NPPES CertifiedMarch 26, 2024
✔ NPI 1790337590 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License✔ Licensed in NY · 096585
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
Also ListedSocial WorkerTaxonomy 104100000X · License 104745 (NY)
2277 GRAND AVE, Baldwin, NY 11510
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Kristofer Mark Isaksen Lcsw is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Medicare Billing Reassignments

3

Medicare enrollment records show Kristofer Isaksen reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Comprehensive Counseling Lcsw, PLLC
12 mi
Clinical
3635 BELL BLVD STE 203
Bayside, NY 11361
  • Reassigned Medicare billing, New York enrollment
  • 163 clinicians in this Medicare group
NPI 1982798773 (718) 830-0246
Long Island Select Healthcare, Inc.
22 mi
Developmental Disabilities
250 MARCUS BLVD
Hauppauge, NY 11788
  • Reassigned Medicare billing, New York enrollment
  • 70 clinicians in this Medicare group
NPI 1467805515 (631) 650-2510
Aldad Medical PC
538 mi
Psychiatry
200 S 1ST ST
Ann Arbor, MI 48104
  • Reassigned Medicare billing, New York enrollment
  • 103 clinicians in this Medicare group
NPI 1174784953 (516) 505-7200

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11510 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
$0.00 typical visit price
range $67.40 – $203.53
Typical copayment $0.00 (range $16.85 – $50.88)
Most-billed visit code NA
Established Patient
$83.44 typical visit price
range $21.66 – $164.45
Typical copayment $20.86 (range $5.41 – $41.11)
Most-billed visit code 99213
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 20

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

MRS. KAREN ELIZABETH ZIMMERMAN LMSW
Social Worker (Clinical)
2277 GRAND AVE
BALDWIN, NY 11510
Nassau County (516) 546-1370
MRS. JENNIFER LYNN DEMIERI LMSW
Social Worker
2277 GRAND AVE
BALDWIN, NY 11510
Nassau County (516) 377-5400
MS. LYNN BRODER LMSW
Social Worker (Clinical)
2277 GRAND AVE
BALDWIN, NY 11510
Nassau County (516) 377-5000
DR. CRAIG ALAN KAFKO PSY.D.
Psychologist
2277 GRAND AVE
BALDWIN, NY 11510
Nassau County (516) 377-5400
JOVITA M CRASTA MD
Psychiatry & Neurology (Psychiatry)
2277 GRAND AVE
BALDWIN, NY 11510
Nassau County (516) 377-5400
ANDREA CARR MD
Psychiatry & Neurology (Psychiatry)
2277 GRAND AVE
BALDWIN, NY 11510
Nassau County (516) 377-5400
MS. TOBY KAREN OSTAR CSW, BCD
Social Worker (Clinical)
2277 GRAND AVE
BALDWIN, NY 11510
Nassau County (516) 377-5400
MRS. KIMBERLY ANN MORROW LCAT
Counselor (Mental Health)
2277 GRAND AVE
BALDWIN, NY 11510
Nassau County (516) 377-5404

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 Kristofer Isaksen's NPI number?

The NPI number for Kristofer Isaksen is 1790337590. It was assigned to this individual provider in the NPPES registry on July 11, 2019.

Where is Kristofer Isaksen located?

Kristofer Isaksen practices at 2277 Grand Ave, Baldwin, NY 11510. The listed phone number is (516) 377-5400.

What is Kristofer Isaksen's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

Is Kristofer Isaksen enrolled in Medicare?

Yes. Kristofer Isaksen is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Kristofer Isaksen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Kristofer Isaksen reassigns Medicare benefits to 3 organizations: Comprehensive Counseling Lcsw, PLLC (Bayside, NY), Long Island Select Healthcare, Inc. (Hauppauge, NY) and Aldad Medical PC (Ann Arbor, MI). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Kristofer Isaksen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Kristofer Isaksen was last updated on March 26, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years 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.