Dr. Fred Krellenstein, Psychologist, P.c.
Clinical - Psychology Clinic
8 Holly Dr, Syosset
New York, 11791-5718
516-921-3943 516-682-8210
Maps & DirectionsDr. Fred Krellenstein, Psychologist, P.c. is a Clinical - Psychology Clinic in Syosset, New York. It is located at 8 Holly Dr, Syosset, NY and its contact number is 516-921-3943. The authorized person for Dr. Fred Krellenstein, Psychologist, P.c. is Dr. Fred Krellenstein
who is President of the clinic and his/her contact number is 516-921-3943.
Dr. Fred Krellenstein, Psychologist, P.c. Clinic has mental health professionals specialized in the diagnosis and psychological treatment of mental, behavioral and emotional illnesses, including obsessive-compulsive disorder (OCD). Psychologists main focus is on diagnosing and treating mental, emotional, and behavioral disorders. Some of the common disorders that psychologists can treat are learning disabilities, substance abuse, depression, anxiety, and eating disorders.
Complete Clinic Profile:
Dr. Fred Krellenstein, Psychologist, P.c. Clinic speciality, address, contact phone number and fax are as below.
Patients can call on the below given phone number for appointments.
| Name: | Dr. Fred Krellenstein, Psychologist, P.c. |
| Specialization: | Clinical Psychology |
| Clinic Address: | 8 Holly Dr, Syosset,
New York, 11791-5718 |
| Phone: | 516-921-3943 |
| Fax: | 516-682-8210 |
Authorized/Official Person Profile:
Officially authorized person to contact for any management issues or complaints for this clinic are as below. Person's position and contact details are also mentioned below.
| Name: | Dr. Fred Krellenstein |
| Position: | President |
| Contact Number: | 516-921-3943 |
Professional Identification Codes:
NPI number stands for National Provider Identifier which is a unique 10-digit identification number issued to health care providers in the United States by the Centers for Medicare and Medicaid Services (CMS).
NPI details for Dr. Fred Krellenstein, Psychologist, P.c. clinic are as mentioned below.
| NPI Number: | 1215293709 |
| NPI Enumeration Date: | 09 Apr, 2012 |
| NPI Last Update On: | 17 Jul, 2013 |
Medical Licenses:
Organizations can have one or more medical licenses for different specialities in the same state or different states. Related medical licenses for Dr. Fred Krellenstein, Psychologist, P.c. are as mentioned below.
| Specialization | License Number | State | Status | |
| Clinical | | | Primary | |
Other Medical Identifiers:
Other legacy medical identifiers of the clinic such as Medicaid, Medicare PIN, NSC, UPIN etc. are mentioned as below.
| Identifier | Type | State | Issuer |
| 00872835 | Medicaid | New York | |
Business Mailing Address:
Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned address.
| Address: | Dr. Fred Krellenstein, Psychologist, P.c.
8 Holly Dr,
Syosset, New York |
| Zip: | 11791-5718 |
| Phone Number: | 516-921-3943 |
| Fax Number: | 516-682-8210 |
Patients can reach Dr. Fred Krellenstein, Psychologist, P.c. at
8 Holly Dr, Syosset, New York or can
call to book an appointment on 516-921-3943.
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Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 08 December, 2025.