NPI registry status
Active
2026 NPPES data Psychologist NPI 1164677043 PHD
Verify on CMS → Omyda Hernandez, PHD
Psychologist in Napa, California.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 48,221 in Psychologist, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
What the federal data shows
Omyda Hernandez, PHD is a Psychologist in Napa, California, listed in the federal CMS National Provider Identifier registry.
- #32
- Psychologist rank among California specialties
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Federal trust snapshot
What official records show about Omyda Hernandez, PHD
Bare NPI registry listing — limited federal enrichment beyond basic enumeration. Verify all credentials with official sources.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1164677043), first enumerated 11/19/2008.
Source: CMS NPPES
- Not in federal data
Medicare Part D participation
No 2023 Medicare Part D prescribing volume appears in the CMS public file for this NPI (may reflect specialty, new enrollment, or non-prescribing role).
Source: CMS Part D Prescriber PUF
- State context
State board disciplinary context
California statewide board action statistics are published annually — these figures describe aggregate state activity, not Omyda Hernandez, PHD's individual license status. Verify directly with the state medical board.
Source: Medical Board of California annual report FY 2022-23
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
Compare Hernandez with other Psychologist providers
Same primary specialty, same federal CMS NPPES roster.
All 49 Psychologist providers in Napa, CA →
Also enrolled in California
- Toni Abad Fountain Valley, CA
- Dr. Alice Abarbanel, PH.D. Albany, CA
- Dr. Michael Abbott, PSYD Modesto, CA
- Dr. Jenna Abell, PSYD Los Angeles, CA
- Dr. Tseday Aberra, PSY.D. Corona, CA
- Dr. Elham Abouhamzeh, PSY.D Irvine, CA
Other specialties in Napa: Behavior Technician (979) · Marriage & Family Therapist (163) · Clinical Social Worker (138) · Mental Health Counselor (134)
CMS NPPES provider registry desk
NPI 1164677043 · Psychologist
NPI-10 · ENUM-MID · TAX-MID · RX-NONE · BOOK-MID · PHOTO-ENUM
- NPI-10 1164677043
- ENUM-MID 2008
- TAX-MID 48K Psychologist
- RX-NONE No Part D
- BOOK-MID 7,178 in California
- PHOTO-ENUM Andrea Mortati, PSY.D. · 2008
What does the federal data show about Omyda Hernandez, PHD?
Quality data not reportedPrimary specialty
Psychologist
Specialty distribution in California
How Psychologist compares to other specialties among California providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Psychologist. Verify directly:
How MIPS and board certification work
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).
Practice Address
Provider Details
| NPI | 1164677043 |
|---|---|
| Specialty | Psychologist |
| Credentials | PHD |
| Gender | Female |
| NPI Issued | 11/19/2008 |
License & disciplinary context - California Medical Board of California, FY 2022-23
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across 148,769 California physician licenses in effect in FY 2022-23 - they are NOT specific to Omyda Hernandez, PHD. To verify Omyda Hernandez, PHD's current license status, use the state board's own license search (see California license lookup), or the Federation of State Medical Boards (FSMB) verification service.
374
Administrative board actions, California FY 2022-23
2.51
Actions per 1,000 physician licenses in effect
California statewide rate
Probation
Most common action type
148 actions
Source: Medical Board of California Annual Report 2022-2023, page 18 (licenses in effect: page 12). Full breakdown by action type on the California discipline page.
Psychologist Overview
How Omyda Hernandez, PHD fits within the Psychologist landscape nationally.
48,221
Psychologist Providers in US
56
States with Psychologist
741
Avg Claims per Provider
Nationwide Psychologist peers with similar MIPS or enrollment year
Two federal-record peer sets for Hernandez, both outside California so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2008)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Psychologist Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Hernandez.
One of 7,178 Psychologist providers enrolled in California, 11 are shown on this page.
Carine Abouseif
Salinas, CA
Dr. Mackenzie Abraham
PHD
Redondo Beach, CA
Dr. Twylla Abrahamson
PH.D.
Auburn, CA
Samantha Abram
BA
San Francisco, CA
Dr. Margarita Abramov
PH.D
South San Francisco, CA
Compare Psychologist nationally: see state-by-state distribution →
Frequently Asked Questions
What is Omyda Hernandez, PHD's specialty? ▼
Omyda Hernandez, PHD specializes in Psychologist and practices in Napa, California. Credentials: PHD.
Where is Omyda Hernandez, PHD located? ▼
Omyda Hernandez, PHD is located at 2100 NAPA VALLEJO HWY, Napa, CA, 94558. Phone: (707) 254-2552.
What is Omyda Hernandez, PHD's NPI number? ▼
Omyda Hernandez, PHD's National Provider Identifier (NPI) is 1164677043, issued on 11/19/2008.
How many Psychologist providers are there in the US? ▼
There are 48,221 Psychologist providers across 56 states in the US. The average Psychologist provider writes 741 Medicare Part D claims per year.
Does Omyda Hernandez, PHD accept Medicare? ▼
Omyda Hernandez, PHD appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Omyda Hernandez, PHD's credentials? ▼
Omyda Hernandez, PHD's NPI is 1164677043 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
View source datasets and methodology notes
- 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 August 2026 (NPPES) / 2024 (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
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of September 2026.