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DR. DEREK HARRY LOEWY PHD
NPI 1457635963
Psychologist - Clinical in San Diego, CA

Active since October 03, 2011PECOS EnrolledAccepts Medicare Assignment
10052 MESA RIDGE CT, SUITE 101, SAN DIEGO, CA 92121(858) 657-0550(858) 202-9568 Get Directions Write a Review

NPPES record last updated: October 3, 2011. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Derek Harry Loewy Phd NPPES

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

DR. DEREK HARRY LOEWY PHD (NPI 1457635963) is an individual clinical provider in San Diego, California, licensed in California (PSY17319) and active in the NPI registry since October 2011. He is enrolled in Medicare PECOS and is a graduate of Other (1996).

NPPES Registry Identity

NPI1457635963
Entity TypeIndividualMale
Primary Taxonomy103TC0700X
Provider Legal NameDR. DEREK HARRY LOEWYCredential: PHD
Location Address10052 MESA RIDGE CT, SUITE 101San Diego, CA 92121-2971
Mailing Address10052 Mesa Ridge Ct, Suite 101San Diego, CA 92121-2971 · (858) 657-0550 · Fax (858) 202-9568
Phone(858) 657-0550
Fax(858) 202-9568
Sole ProprietorYes
Medical School CMSOtherGraduated 1996
Enumeration DateOctober 3, 2011
✔ NPI 1457635963 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 CA · PSY17319
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.
10052 MESA RIDGE CT, San Diego, CA 92121
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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 and accepts Medicare assignment

Dr. Derek Harry Loewy Phd 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 ID749226405
PECOS Enrollment IDI20120522001262
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 Derek Loewy reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Scripps Health
3.0 mi
Thoracic Surgery (Cardiothoracic Vascular Surgery)
9898 GENESEE AVE FL 3
La Jolla, CA 92037
  • Reassigned Medicare billing, California enrollment
  • 1,598 clinicians in this Medicare group
NPI 1619108503 (858) 455-6330
Regents Of The University Of California
10.0 mi
Psychiatry
200 W ARBOR DR
San Diego, CA 92103
  • Reassigned Medicare billing, California enrollment
  • 220 clinicians in this Medicare group
NPI 1508968967 (800) 926-8273
Imperial Valley Family Care Medical Group Apc
93 mi
General Practice
516 WEST ATEN ROAD, SUITE 2
Imperial, CA 92251
  • Reassigned Medicare billing, California enrollment
  • Medicare enrollment name: Imperial Valley Family Care Medical Group A P C
  • 81 clinicians in this Medicare group
NPI 1275581894 (760) 355-7730

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 3

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, 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.
305 services209 patients
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.
151 services92 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.
91 services91 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92121 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
$184.71 typical visit price
range $62.10 – $184.71
Typical copayment $46.17 (range $15.52 – $46.17)
Most-billed visit code 99205
Established Patient
$108.42 typical visit price
range $20.62 – $151.42
Typical copayment $27.10 (range $5.15 – $37.85)
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 2

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

PACIFIC SLEEP MEDICINE SERVICES, INC
Durable Medical Equipment & Medical Supplies
10052 MESA RIDGE CT, STE 101
SAN DIEGO, CA 92121
San Diego County (858) 657-0550
DR. RENATA SHAFOR M.D.
Internal Medicine (Sleep Medicine)
10052 MESA RIDGE CT, SUITE 101
SAN DIEGO, CA 92121
San Diego County (858) 657-0550

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 Derek Loewy's NPI number?

The NPI number for Derek Loewy is 1457635963. It was assigned to this individual provider in the NPPES registry on October 3, 2011.

Where is Derek Loewy located?

Derek Loewy practices at 10052 Mesa Ridge Ct Suite 101, San Diego, CA 92121. The listed phone number is (858) 657-0550.

What is Derek Loewy's specialty?

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

Is Derek Loewy enrolled in Medicare?

Yes. Derek Loewy 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 Derek Loewy's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Derek Loewy reassigns Medicare benefits to 3 organizations: Scripps Health (La Jolla, CA), Regents Of The University Of California (San Diego, CA) and Imperial Valley Family Care Medical Group Apc (Imperial, CA). 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 Derek Loewy'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 Derek Loewy was last updated on October 3, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.