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DIANA SUZANNE KOENEN MA
NPI 1164552667
Marriage & Family Therapist in Menifee, CA

Active since March 06, 2007PECOS Enrolled
SUN PLAZA BUSINESS CENTER, 27851 BRADLEY RD, SUITE 103, MENIFEE, CA 92586(951) 575-8729 Get Directions Write a Review

NPPES record last updated: February 19, 2019. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Diana Suzanne Koenen Ma NPPES

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

DIANA SUZANNE KOENEN MA (NPI 1164552667) is an individual marriage & family therapist in Menifee, California, licensed in California (MFC34961) and active in the NPI registry since March 2007. She is enrolled in Medicare PECOS and maintains a secondary practice location in Lake Elsinore.

NPPES Registry Identity

NPI1164552667
Entity TypeIndividualFemale
Primary Taxonomy106H00000X
Provider Legal NameDIANA SUZANNE KOENENCredential: MA
Location AddressSUN PLAZA BUSINESS CENTER, 27851 BRADLEY RD, SUITE 103Menifee, CA 92586
Mailing Address1400 Minthorn AveLake Elsinore, CA 92530 · (951) 245-3207 · Fax (951) 487-2679
Phone(951) 575-8729
Sole ProprietorNo
Enumeration DateMarch 6, 2007
Last NPPES UpdateFebruary 19, 2019
✔ NPI 1164552667 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 · MFC34961
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.
SUN PLAZA BUSINESS CENTER, Menifee, CA 92586
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Secondary Practice Location 1

Location 11400 Minthorn AveLake Elsinore, CA 92530 · Phone (951) 245-3207 · Fax (951) 245-3008

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Diana Suzanne Koenen Ma 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

2

Medicare enrollment records show Diana Koenen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Grow Healthcare Group PC
364 mi
Mental Health
99 S ALMADEN BLVD STE 600
San Jose, CA 95113
  • Reassigned Medicare billing, California enrollment
  • 3,139 clinicians in this Medicare group
NPI 1154994846 (408) 402-4385
Headway California Behavioral Health Services, P.C.
2,406 mi
Psychiatry
205 HUDSON ST FL 9
New York, NY 10013
  • Reassigned Medicare billing, California enrollment
  • Medicare enrollment name: Headway California Behavioral Health Services PC
  • 10 clinicians in this Medicare group
NPI 1174292866 (646) 453-6777

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

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 Diana Koenen's NPI number?

The NPI number for Diana Koenen is 1164552667. It was assigned to this individual provider in the NPPES registry on March 6, 2007.

Where is Diana Koenen located?

Diana Koenen practices at Sun Plaza Business Center 27851 Bradley Rd, Suite 103, Menifee, CA 92586. The listed phone number is (951) 575-8729.

What is Diana Koenen's specialty?

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

Is Diana Koenen enrolled in Medicare?

Yes. Diana Koenen is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Diana Koenen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Diana Koenen reassigns Medicare benefits to 2 organizations: Grow Healthcare Group PC (San Jose, CA) and Headway California Behavioral Health Services, P.C. (New York, 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 Diana Koenen'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 Diana Koenen was last updated on February 19, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.