DR. MELVYN GRACE HUYNH DNP, FNP-BC, AGPCNP-
NPI 1225495294
Nurse Practitioner - Family in San Diego, CA

Active since January 21, 2016PECOS EnrolledAccepts Medicare Assignment
4077 FIFTH AVE, SAN DIEGO, CA 92103(619) 686-3935(619) 686-3440 Get Directions Write a Review

NPPES record last updated: April 13, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Apr 13, 2020, Jan 21, 2016 (2 updates tracked since 2016).

About Dr. Melvyn Grace Huynh Dnp, Fnp-bc, Agpcnp- NPPES

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

DR. MELVYN GRACE HUYNH DNP, FNP-BC, AGPCNP- (NPI 1225495294) is an individual family provider in San Diego, California, licensed in California (95002765) and active in the NPI registry since January 2016. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of University Of California, San Diego School Of Medicine (2015).

NPPES Registry Identity

NPI1225495294
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameDR. MELVYN GRACE HUYNHCredential: DNP, FNP-BC, AGPCNP-
Location Address4077 FIFTH AVESan Diego, CA 92103-2105
Mailing Address10140 Campus Point DrSan Diego, CA 92121-1520 · (619) 686-3935 · Fax (619) 686-3440
Fax(619) 686-3440
Sole ProprietorYes
Medical School CMSUniversity Of California, San Diego School Of MedicineGraduated 2015
Enumeration DateJanuary 21, 2016
Last NPPES UpdateApril 13, 20202 updates tracked since enumeration
NPPES CertifiedApril 13, 2020
✔ NPI 1225495294 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in CA · 95002765
Also ListedNurse Practitioner · Adult HealthTaxonomy 363LA2200X · License 95002765 (CA)
Also ListedNurse Practitioner · GerontologyTaxonomy 363LG0600X · License 95002765 (CA)
4077 FIFTH AVE, San Diego, CA 92103

Other Names 1

Former Name (1)Melvyn Grace Rabanal

Secondary Practice Locations 2

Location 11363 Sutter Buttes StChula Vista, CA 91913-2944 · Phone (619) 208-8246
Location 210666 N Torrey Pines RdLA Jolla, CA 92037-1027 · Phone (619) 686-3935

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

Dr. Melvyn Grace Huynh Dnp, Fnp-bc, Agpcnp- 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 ID6406141993
PECOS Enrollment IDI20161230001515
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 Reassignments

3

Medicare enrollment records show Melvyn Grace Huynh reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Same address
General Acute Care Hospital
4077 5TH AVE
San Diego, CA 92103
  • Reassigned Medicare billing, California enrollment
  • 1,598 clinicians in this Medicare group
Multi-Specialty
9888 GENESEE AVE
La Jolla, CA 92037
  • Reassigned Medicare billing, California enrollment
  • 278 clinicians in this Medicare group
Internal Medicine
662 ENCINITAS BLVD STE 220
Encinitas, CA 92024
  • Reassigned Medicare billing, California enrollment
  • 70 clinicians in this Medicare group

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 3

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 hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
68 services29 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
57 services20 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
20 services20 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92103 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 20

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

Hospitalist
4077 FIFTH AVE
SAN DIEGO, CA 92103
Clinical Nurse Specialist (Critical Care Medicine)
4077 FIFTH AVE
SAN DIEGO, CA 92103
Registered Nurse (Neuroscience)
4077 FIFTH AVE
SAN DIEGO, CA 92103
Internal Medicine
4077 FIFTH AVE, MER 35
SAN DIEGO, CA 92103
Emergency Medicine
4077 FIFTH AVE
SAN DIEGO, CA 92103
Student in an Organized Health Care Education/Training Program
4077 FIFTH AVE
SAN DIEGO, CA 92103
Nurse Practitioner (Acute Care)
4077 FIFTH AVE, TRAUMA SERVICES, MER62
SAN DIEGO, CA 92103
Nurse Practitioner (Family)
4077 FIFTH AVE
SAN DIEGO, CA 92103

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 Melvyn Grace Huynh's NPI number?

The NPI number for Melvyn Grace Huynh is 1225495294. It was assigned to this individual provider in the NPPES registry on January 21, 2016. The provider is also known as Melvyn Grace Rabanal.

Where is Melvyn Grace Huynh located?

Melvyn Grace Huynh practices at 4077 Fifth Ave, San Diego, CA 92103. The listed phone number is (619) 686-3935.

What is Melvyn Grace Huynh's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Melvyn Grace Huynh enrolled in Medicare?

Yes. Melvyn Grace Huynh 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 organizations bill Medicare for Melvyn Grace Huynh's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Melvyn Grace Huynh reassigns Medicare benefits to 3 organizations: Scripps Health (San Diego, CA), Scripps Health Inpatient Providers Medical Group Inc. (La Jolla, CA) and Enlightened Healthcare Alliance Medical Corporation (Encinitas, CA). Each 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 Melvyn Grace Huynh'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 Melvyn Grace Huynh was last updated on April 13, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.