LYN HERNANDEZ NP
NPI 1679300222
Nurse Practitioner - Psychiatric/Mental Health in National City, CA

Q: What is Lyn Hernandez's NPI number?

The NPI number for Lyn Hernandez is 1679300222. It was assigned to this individual provider in the NPPES registry on September 17, 2024.

Q: What is Lyn Hernandez's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Q: When was this NPI record last updated?

The NPPES record for Lyn Hernandez was last updated on October 6, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months 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.

Active since September 17, 2024PECOS EnrolledAccepts Medicare Assignment

610 EUCLID AVE STE 200, NATIONAL CITY, CA 91950(619) 267-9257(619) 267-9273 Get Directions Write a Review

NPPES record last updated: October 6, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Oct 6, 2025, May 22, 2025, Sep 17, 2024 (3 updates tracked since 2024).

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About Lyn Hernandez Np NPPES

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

LYN HERNANDEZ NP (NPI 1679300222) is an individual psychiatric/mental health provider in National City, California, licensed in California (NP95016426) and active in the NPI registry since September 2024. She is enrolled in Medicare PECOS, maintains a secondary practice location in National City, and is a graduate of Other (2021).

NPPES Registry Identity

NPI1679300222

Entity TypeIndividualFemale

Primary Taxonomy363LP0808X

Provider Legal NameLYN HERNANDEZCredential: NP

Location Address610 EUCLID AVE STE 200National City, CA 91950-2951

Mailing Address610 Euclid Avenue, Suite 200National City, CA 91950 · (619) 267-9257 · Fax (619) 267-9273

Phone(619) 267-9257

Fax(619) 267-9273

Sole ProprietorYes

Medical School CMSOtherGraduated 2021

Enumeration DateSeptember 17, 2024

Last NPPES UpdateOctober 6, 20253 updates tracked since enumeration

NPPES CertifiedOctober 6, 2025

✔ NPI 1679300222 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LP0808X

Licenses✔ Licensed in CA · NP95016426✔ Licensed in CA · 95016426

Also ListedNurse Practitioner · FamilyTaxonomy 363LF0000X · License 95016426 (CA), NP95016426 (CA)

610 EUCLID AVE STE 200, National City, CA 91950

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Secondary Practice Location 1

Location 1610 Euclid Ave Ste 200National City, CA 91950-2951 · Phone (855) 458-8867 · Fax (619) 267-9273

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

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

Lyn Hernandez Np 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 ID6901339183

PECOS Enrollment IDI20241025002684

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 Lyn Hernandez reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Pacific Health Systems, L.P.

Same address

Psychiatry

610 EUCLID AVE STE 200
National City, CA 91950

Reassigned Medicare billing, California enrollment
Medicare enrollment name: Pacific Health Systems LP
18 clinicians in this Medicare group

NPI 1669486429 (619) 267-9257

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

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more 99308

A follow-up nursing facility visit per day is a daily check-up service provided by healthcare professionals. It lasts around 15 minutes and involves assessing your health status, monitoring your recovery progress, and addressing any concerns you may have about your health or treatment.

15 services15 patients

Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 99309

A follow-up nursing facility visit per day is a daily check-in by a healthcare professional. This 25-minute visit typically involves monitoring your health progress, addressing any concerns, and adjusting treatment plans as necessary. It's a vital part of ensuring your ongoing wellbeing.

15 services15 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91950 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

$94.87 typical visit price

range $62.10 – $184.71

Typical copayment $23.71 (range $15.52 – $46.17)

Most-billed visit code 99203

Established Patient

$108.42 typical visit price

range $20.62 – $151.42

Typical copayment $27.10 (range $5.15 – $37.85)

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 13

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

DR. RANDI COOPER MAPLES PSY.D.

Psychologist