2026 NPPES data Counseling Psychologist NPI 1598389827 PHD
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JULIO BRIONEZ, PHD

Counseling Psychologist in LA MESA, California. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
What the federal data reveals: JULIO BRIONEZ, PHD is a Counseling Psychologist ([object Object]) practicing in LA MESA, California .

What stands out: JULIO BRIONEZ, PHD specializes in Counseling Psychologist and practices in LA MESA, California, listed in the federal CMS National Provider Identifier registry. Every detail on this page comes straight from federal CMS records, with no proprietary rating applied.

JULIO BRIONEZ, PHD at a glance

Quality data not reported

NPI registry status

Active

Issued 06/02/2020

NPI 1598389827

Primary specialty

Counseling Psychologist

Mid-sized

7,896 US NPIs in this specialty

Specialty distribution in California

How Counseling Psychologist compares to other specialties among California providers

California providers

Counseling Psychologist share within California

1. Counseling Psychologist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Counseling Psychologist share within California

Specialty board-certification context

Estimated specialty board-certified rate — Counseling Psychologist (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Counseling Psychologist ABMS/AOA estimate

Est. board-certified rate (Counseling Psychologist) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Counseling Psychologist) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

JULIO BRIONEZ, PHD is a Counseling Psychologist provider practicing in LA MESA, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: PHD. NPI: 1598389827. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

JULIO BRIONEZ, PHD appears in the CMS NPPES registry as a Counseling Psychologist provider holding PHD credentials at 8851 CENTER DR STE 312, LA MESA, CA, 91942, with a listed phone of (619) 515-2383. NPI 1598389827 was issued on 06/02/2020. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BRIONEZ most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D prescribing data is not currently published for this NPI, which typically means the provider either wrote fewer than 11 Part D claims in the most recent reporting year, does not participate in Medicare, or practices in a specialty that rarely prescribes outpatient drugs. Absence of prescribing data is not a quality signal — many Counseling Psychologist providers operate outside Part D entirely.

Counseling Psychologist is a mid-sized specialty nationwide, with 7,896 enrolled providers across 54 states and an average of 744 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

8851 CENTER DR STE 312
LA MESA, CA 91942

Provider Details

NPI 1598389827
Specialty Counseling Psychologist
Credentials PHD
Gender Male
NPI Issued 06/02/2020

License & disciplinary context — California MBC 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~150K California medical licensees in 2023 — they are NOT specific to JULIO BRIONEZ, PHD. To verify JULIO BRIONEZ, PHD's current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases

MBC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Counseling Psychologist Overview

How JULIO BRIONEZ, PHD fits within the Counseling Psychologist landscape nationally.

7,896
Counseling Psychologist Providers in US
54
States with Counseling Psychologist
744
Avg Claims per Provider

Nearby Counseling Psychologist Providers in California

Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as BRIONEZ.

Compare Counseling Psychologist nationally: see state-by-state distribution →

Frequently Asked Questions

What is JULIO BRIONEZ, PHD's specialty?
JULIO BRIONEZ, PHD specializes in Counseling Psychologist and practices in LA MESA, California. Credentials: PHD.
Where is JULIO BRIONEZ, PHD located?
JULIO BRIONEZ, PHD is located at 8851 CENTER DR STE 312, LA MESA, CA, 91942. Phone: (619) 515-2383.
What is JULIO BRIONEZ, PHD's NPI number?
JULIO BRIONEZ, PHD's National Provider Identifier (NPI) is 1598389827, issued on 06/02/2020.
How many Counseling Psychologist providers are there in the US?
There are 7,896 Counseling Psychologist providers across 54 states in the US. The average Counseling Psychologist provider writes 744 Medicare Part D claims per year.
Does JULIO BRIONEZ, PHD accept Medicare?
JULIO BRIONEZ, PHD appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JULIO BRIONEZ, PHD's credentials?
JULIO BRIONEZ, PHD's NPI is 1598389827 with credentials PHD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology