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DR. HADLEY ANN MCGREGOR PSY.D.
NPI 1306537428
Psychologist - Clinical in Costa Mesa, CA

Active since May 18, 2023PECOS Enrolled
1202 BRISTOL ST FL 2, COSTA MESA, CA 92626(949) 267-0400 Get Directions Write a Review

NPPES record last updated: July 24, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jul 24, 2023, May 18, 2023 (2 updates tracked since 2023).

About Dr. Hadley Ann Mcgregor Psy.d. NPPES

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

DR. HADLEY ANN MCGREGOR PSY.D. (NPI 1306537428) is an individual clinical provider in Costa Mesa, California, licensed in California (PSY34225) and active in the NPI registry since May 2023. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1306537428
Entity TypeIndividualFemale
Primary Taxonomy103TC0700X
Provider Legal NameDR. HADLEY ANN MCGREGORCredential: PSY.D.
Location Address1202 BRISTOL ST FL 2Costa Mesa, CA 92626-8605
Mailing Address1202 Bristol St Fl 2Costa Mesa, CA 92626-8605 · (949) 267-0440
Phone(949) 267-0400
Sole ProprietorNo
Enumeration DateMay 18, 2023
Last NPPES UpdateJuly 24, 20232 updates tracked since enumeration
NPPES CertifiedJuly 24, 2023
✔ NPI 1306537428 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 · PSY34225
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.
1202 BRISTOL ST FL 2, Costa Mesa, CA 92626
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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 (PECOS)

Dr. Hadley Ann Mcgregor Psy.d. 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 Reassignment

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

Uc Regents Uci Dept Of Pediatrics
8.2 mi
Pediatrics
101 THE CITY DR S
Orange, CA 92868
  • Reassigned Medicare billing, California enrollment
  • 143 clinicians in this Medicare group
NPI 1235187311 (714) 456-8068

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92626 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
$187.60 typical visit price
range $62.96 – $187.60
Typical copayment $46.90 (range $15.74 – $46.90)
Most-billed visit code 99205
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
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 6

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

DR. AFROUZ DEMEHRI N.D
Naturopath
1202 BRISTOL ST FL 2
COSTA MESA, CA 92626
Orange County (714) 424-9001
NATASHA BEVERLY HARRIS
Massage Therapist
1202 BRISTOL ST FL 2
COSTA MESA, CA 92626
Orange County (714) 424-9001
LAUREL PATRICIA DE GRAAF-GARCIA CMT
Massage Therapist
1202 BRISTOL ST FL 2
COSTA MESA, CA 92626
Orange County (714) 424-9001
MR. ROBERT WILLIAM THOMAS II CMT, HHP
Massage Therapist
1202 BRISTOL ST FL 2
COSTA MESA, CA 92626
Orange County (714) 424-9001
MADDISON THIVIERGE ND
Naturopath
1202 BRISTOL ST FL 2
COSTA MESA, CA 92626
Orange County (714) 424-9001
DR. DARLENE LEE ND
Naturopath
1202 BRISTOL ST FL 2
COSTA MESA, CA 92626
Orange County (714) 424-9001

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 Hadley Mcgregor's NPI number?

The NPI number for Hadley Mcgregor is 1306537428. It was assigned to this individual provider in the NPPES registry on May 18, 2023.

Where is Hadley Mcgregor located?

Hadley Mcgregor practices at 1202 Bristol St Fl 2, Costa Mesa, CA 92626. The listed phone number is (949) 267-0400.

What is Hadley Mcgregor's specialty?

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

Is Hadley Mcgregor enrolled in Medicare?

Yes. Hadley Mcgregor is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Hadley Mcgregor's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Hadley Mcgregor reassigns Medicare benefits to Uc Regents Uci Dept Of Pediatrics (Orange, 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 Hadley Mcgregor'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 Hadley Mcgregor was last updated on July 24, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.