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JAMES MICHAEL GREGG PHD
NPI 1285830372
Psychologist - Clinical in Soledad, CA

Active since June 25, 2007PECOS EnrolledAccepts Medicare Assignment
31625 HIGHWAY 101 S, SALINAS VALLEY STATE PRISON, SOLEDAD, CA 93960(831) 229-4880 Get Directions Write a Review

NPPES record last updated: January 21, 2022. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jan 21, 2022, Dec 8, 2015 (2 updates tracked since 2015).

About James Michael Gregg Phd NPPES

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

JAMES MICHAEL GREGG PHD (NPI 1285830372) is an individual clinical provider in Soledad, California, licensed in California (22436) and active in the NPI registry since June 2007. He is enrolled in Medicare PECOS and is a graduate of Other (2006).

NPPES Registry Identity

NPI1285830372
Entity TypeIndividualMale
Primary Taxonomy103TC0700X
Provider Legal NameJAMES MICHAEL GREGGCredential: PHD
Location Address31625 HIGHWAY 101 S, SALINAS VALLEY STATE PRISONSoledad, CA 93960-9529
Mailing Address5805 Charlotte Dr Apt 393San Jose, CA 95123-3658 · (415) 244-7589
Phone(831) 229-4880
Sole ProprietorYes
Medical School CMSOtherGraduated 2006
Enumeration DateJune 25, 2007
Last NPPES UpdateJanuary 21, 20222 updates tracked since enumeration
NPPES CertifiedJanuary 21, 2022
✔ NPI 1285830372 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 · 22436
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.
31625 HIGHWAY 101 S, Soledad, CA 93960
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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

James Michael Gregg 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 ID1951785468
PECOS Enrollment IDI20220901001826
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 James Gregg reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Permanente Medical Group Inc
69 mi
Internal Medicine
710 LAWRENCE EXPRESSWAY
Santa Clara, CA 95051
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
NPI 1073606299 (408) 851-1000

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 93960 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
$184.30 typical visit price
range $61.69 – $184.30
Typical copayment $46.07 (range $15.42 – $46.07)
Most-billed visit code 99205
Established Patient
$108.04 typical visit price
range $20.34 – $151.02
Typical copayment $27.01 (range $5.08 – $37.75)
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 20

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

DR. BENJAMIN DANIEL BLOCH PSY.D.
Specialist
31625 HIGHWAY 101 S
SOLEDAD, CA 93960
Monterey County (831) 678-4019
MS. JOANNE CAROL ETHERIDGE LCSW
Social Worker (Clinical)
31625 HIGHWAY 101 S
SOLEDAD, CA 93960
Monterey County (831) 678-5500
MS. WANJIRU WAWERU-BENSON LCSW
Social Worker (Clinical)
31625 HIGHWAY 101 S
SOLEDAD, CA 93960
Monterey County (209) 679-1929
EDDIE TREVINO
Student in an Organized Health Care Education/Training Program
31625 HIGHWAY 101 S
SOLEDAD, CA 93960
Monterey County (831) 678-5500
JULIE ANN NGIN PSY.D.
Psychologist
31625 HIGHWAY 101 S
SOLEDAD, CA 93960
Monterey County (831) 678-5500
ESFANDIAR ESKANDARI PH.D,
Case Manager/Care Coordinator
31625 HIGHWAY 101 S
SOLEDAD, CA 93960
Monterey County (831) 678-5500
KENYA DIAZ
Student in an Organized Health Care Education/Training Program
31625 HIGHWAY 101 S
SOLEDAD, CA 93960
Monterey County (831) 678-5500
THANH NGUYEN PHARMD
Pharmacist
31625 HIGHWAY 101 S
SOLEDAD, CA 93960
Monterey County (831) 678-5500

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 James Gregg's NPI number?

The NPI number for James Gregg is 1285830372. It was assigned to this individual provider in the NPPES registry on June 25, 2007.

Where is James Gregg located?

James Gregg practices at 31625 Highway 101 S Salinas Valley State Prison, Soledad, CA 93960. The listed phone number is (831) 229-4880.

What is James Gregg's specialty?

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

Is James Gregg enrolled in Medicare?

Yes. James Gregg 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 organization bills Medicare for James Gregg's services?

According to the CMS Revalidation Reassignment List (October 2026 release), James Gregg reassigns Medicare benefits to Permanente Medical Group Inc (Santa Clara, 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 James Gregg'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 James Gregg was last updated on January 21, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.