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DR. GREGORY ALLEN PH.D., MFT
NPI 1679841795
Marriage & Family Therapist in Palos Verdes Estates, CA

Active since December 03, 2011PECOS Enrolled
336 TEJON PL, PALOS VERDES ESTATES, CA 90274(310) 378-9005(310) 378-3024 Get Directions Write a Review

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

About Dr. Gregory Allen Ph.d., Mft NPPES

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

DR. GREGORY ALLEN PH.D., MFT (NPI 1679841795) is an individual marriage & family therapist in Palos Verdes Estates, California, licensed in California (17674) and active in the NPI registry since December 2011. He is enrolled in Medicare PECOS and is a graduate of Other (1980).

NPPES Registry Identity

NPI1679841795
Entity TypeIndividualMale
Primary Taxonomy106H00000X
Provider Legal NameDR. GREGORY ALLENCredential: PH.D., MFT
Location Address336 TEJON PLPalos Verdes Estates, CA 90274-1204
Mailing Address336 Tejon PlPalos Verdes Estates, CA 90274-1204 · (310) 378-9005 · Fax (310) 378-3024
Phone(310) 378-9005
Fax(310) 378-3024
Sole ProprietorYes
Medical School CMSOtherGraduated 1980
Enumeration DateDecember 3, 2011
✔ NPI 1679841795 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyMarriage & Family TherapistBehavioral Health & Social Service Providers
Taxonomy Code106H00000X
License✔ Licensed in CA · 17674
Definition
A marriage and family therapist is a person with a master's degree in marriage and family therapy, or a master's or doctoral degree in a related mental health field with substantially equivalent coursework in marriage and family therapy, who receives supervised clinical experience, or a person who meets the state requirements to practice as a marriage and family therapist. A marriage and family therapist treats mental and emotional disorders within the context of marriage and family systems. A marriage and family therapist provides mental health and counseling services to individuals, couples, families, and groups.
336 TEJON PL, Palos Verdes Estates, CA 90274
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Other Identifiers 1

Other0CA · Ins Application Being Processed For Aetna

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Gregory Allen Ph.d., Mft is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID7810330834
PECOS Enrollment IDI20260122004023
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 Reassignment

Medicare enrollment records show Gregory Allen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Hearts Respond
Same address
Mental Health
336 TEJON PLACE
Palos Verdes Estates, CA 90274
  • Reassigned Medicare billing, California enrollment
  • 2 clinicians in this Medicare group
NPI 1689297871 (323) 902-7534

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

Other Providers at the Same Location NPPES 3

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

MALIA PRIETTO
Community/Behavioral Health
336 TEJON PL
PALOS VERDES ESTATES, CA 90274
Los Angeles County (424) 757-4957
GREGORY E. ALLEN, FAMILY COUNSELING, INC.
Rehabilitation, Substance Use Disorder Unit
336 TEJON PL
PALOS VERDES ESTATES, CA 90274
Los Angeles County (310) 378-9005
KRISTEN CASTLE LMFT
Marriage & Family Therapist
336 TEJON PL
PALOS VERDES ESTATES, CA 90274
Los Angeles County (424) 265-8001

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 Gregory Allen's NPI number?

The NPI number for Gregory Allen is 1679841795. It was assigned to this individual provider in the NPPES registry on December 3, 2011.

Where is Gregory Allen located?

Gregory Allen practices at 336 Tejon Pl, Palos Verdes Estates, CA 90274. The listed phone number is (310) 378-9005.

What is Gregory Allen's specialty?

The primary specialty registered for this NPI is Marriage & Family Therapist with taxonomy code 106H00000X.

Is Gregory Allen enrolled in Medicare?

Yes. Gregory Allen is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Gregory Allen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Allen reassigns Medicare benefits to Hearts Respond (Palos Verdes Estates, CA). The 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 Gregory Allen'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 Gregory Allen was last updated on December 3, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.