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DR. STEPHEN LLOYD KAPLAN PH.D.
NPI 1649208752
Psychologist - Clinical in Commack, NY

Active since June 29, 2006PECOS EnrolledAccepts Medicare Assignment
35 CROOKED HILL RD STE 102, COMMACK, NY 11725(631) 643-7904(815) 301-8575 Get Directions Write a Review

NPPES record last updated: January 9, 2010. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Stephen Lloyd Kaplan Ph.d. NPPES

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

DR. STEPHEN LLOYD KAPLAN PH.D. (NPI 1649208752) is an individual clinical provider in Commack, New York, licensed in New York (011028) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1990).

NPPES Registry Identity

NPI1649208752
Entity TypeIndividualMale
Primary Taxonomy103TC0700X
Provider Legal NameDR. STEPHEN LLOYD KAPLANCredential: PH.D.
Location Address35 CROOKED HILL RD STE 102Commack, NY 11725-5415
Mailing Address20 Wildwood DrDix Hills, NY 11746-6041 · (631) 643-7904 · Fax (815) 301-8575
Phone(631) 643-7904
Fax(815) 301-8575
Sole ProprietorYes
Medical School CMSOtherGraduated 1990
Enumeration DateJune 29, 2006
Last NPPES UpdateJanuary 9, 2010
✔ NPI 1649208752 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code103TC0700X
License✔ Licensed in NY · 011028
Definition
A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.
35 CROOKED HILL RD STE 102, Commack, NY 11725
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Other Identifiers 1

Medicare ID-Type UnspecifiedV5B911NY

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Stephen Lloyd Kaplan Ph.d. 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 ID7012106420
PECOS Enrollment IDI20110114000678
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

5

Medicare enrollment records show Stephen Kaplan reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Epic Long Island
16 mi
Voluntary or Charitable
1500 HEMPSTEAD TPKE
East Meadow, NY 11554
  • Reassigned Medicare billing, New York enrollment
  • 110 clinicians in this Medicare group
NPI 1174563936 (516) 739-7733
Epic Medical Services PC
16 mi
Specialist
1500 HEMPSTEAD TPKE
East Meadow, NY 11554
  • Reassigned Medicare billing, New York enrollment
  • 75 clinicians in this Medicare group
NPI 1134589609 (516) 739-7733
Essential Ot, Pt, Slp & Psychology Services, PLLC
20 mi
Contractor
2703 MILBURN AVE
Baldwin, NY 11510
  • Reassigned Medicare billing, New York enrollment
  • 52 clinicians in this Medicare group
NPI 1093226805 (917) 499-8496
Mhh Psychology And Speech-Language Pathology Therapy Services PLLC
22 mi
Contractor
7649 HEWLETT ST
New Hyde Park, NY 11040
  • Reassigned Medicare billing, New York enrollment
  • 53 clinicians in this Medicare group
NPI 1871966515 (212) 388-1903
Complete Slp, Ot, Pt & Psychology Services, PLLC
29 mi
Contractor
3410 GRACE AVE
Bronx, NY 10469
  • Reassigned Medicare billing, New York enrollment
  • 33 clinicians in this Medicare group
NPI 1437616026 (203) 809-9948

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

Areas of Expertise CMS Part B claims 9

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Psychotherapy, 30 minutes 90832
Psychotherapy is a therapeutic interaction or treatment between a trained professional and a patient. In a 30-minute session, the therapist helps you explore feelings, thoughts, and behaviors to better understand yourself and manage life's challenges.
1,054 services74 patients
Psychotherapy, 45 minutes 90834
Psychotherapy is a treatment method where you converse with a therapist about your thoughts, feelings, and behaviors. In a 45-minute session, the therapist assists you in understanding and managing your mental health concerns, improving emotional wellness, and promoting personal growth.
370 services17 patients
Psychiatric diagnostic evaluation 90791
A psychiatric diagnostic evaluation is a thorough assessment used to identify any mental health conditions you may have. It involves a detailed discussion about your symptoms, thoughts, feelings and behavior patterns. Your medical history and family's mental health history are also considered.
55 services48 patients
Evaluation of psychological test, first hour 96130
This procedure involves a professional assessing your mental health using standardized tests. It's the initial hour of a process that helps understand your emotional well-being and cognitive abilities. It's completely non-invasive and confidential.
35 services35 patients
Administration of psychological or neuropsychological test, each additional 30 minutes 96137
This procedure involves administering psychological or neuropsychological tests to evaluate your mental functions. Each additional 30 minutes allows for a more in-depth assessment of your cognitive abilities, emotions, and behavior. It's crucial for accurate diagnosis and treatment planning.
24 services20 patients
Evaluation of psychological test, each additional hour 96131
This service involves additional hours spent on assessing psychological tests. It helps to understand your mental health better, identifying any potential issues or disorders. It's a crucial step in creating an effective treatment plan.
23 services23 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11725 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
$203.53 typical visit price
range $67.40 – $203.53
Typical copayment $50.88 (range $16.85 – $50.88)
Most-billed visit code 99205
Established Patient
$117.62 typical visit price
range $21.66 – $164.45
Typical copayment $29.40 (range $5.41 – $41.11)
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.

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 Stephen Kaplan's NPI number?

The NPI number for Stephen Kaplan is 1649208752. It was assigned to this individual provider in the NPPES registry on June 29, 2006.

Where is Stephen Kaplan located?

Stephen Kaplan practices at 35 Crooked Hill Rd Ste 102, Commack, NY 11725. The listed phone number is (631) 643-7904.

What is Stephen Kaplan's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Is Stephen Kaplan enrolled in Medicare?

Yes. Stephen Kaplan 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.

Which organizations bill Medicare for Stephen Kaplan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Stephen Kaplan reassigns Medicare benefits to 5 organizations: Epic Long Island (East Meadow, NY), Epic Medical Services PC (East Meadow, NY), Essential Ot, Pt, Slp & Psychology Services, PLLC (Baldwin, NY), Mhh Psychology And Speech-Language Pathology Therapy Services PLLC (New Hyde Park, NY) and Complete Slp, Ot, Pt & Psychology Services, PLLC (Bronx, NY). 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 Stephen Kaplan'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 Stephen Kaplan was last updated on January 9, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.