What is Nathan Hwang's NPI number?

Nathan Hwang's National Provider Identifier (NPI) is 1831964758, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Nathan Hwang's specialty?

Nathan Hwang is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).

Where is Nathan Hwang located?

Nathan Hwang's practice location on file with NPPES is 17612 17th St Ste 101, Tustin, CA 92780-1962.

What is Nathan Hwang's phone number?

The practice phone number listed in the NPPES registry for Nathan Hwang is (714) 243-5450.

Does Nathan Hwang accept Medicare?

Nathan Hwang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Nathan Hwang's NPI active?

Yes — Nathan Hwang's NPI (1831964758) is active in the NPPES registry as of the last update on 2023-11-29.

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Nathan Hwang

NPI 1831964758 · Physician Assistant · Tustin, CA

Nathan Hwang is a Physician Assistant provider in Tustin, CA (NPI 1831964758).

Provider details

NPI number: 1831964758
Entity type: Individual
Primary specialty: Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Sex: Male
Sole proprietor: No
License: 63338 (CA)

Practice location

17612 17th St Ste 101

Tustin, CA 92780-1962

Phone: (714) 243-5450

Street-level locationGet directions

More CA providers

Mailing address

17612 17th St Ste 101

Tustin, CA 92780-1962

Specialties & taxonomies

Physician AssistantPrimary363A00000XLicense 63338 (CA)
Physician Assistants & Advanced Practice Nursing Providers

Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Established profile(64/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure33% of score
2 yrs in NPPES registry
Profile completeness33% of score
100% of core fields populated
Practice footprint20% of score
1 documented practice location
Open Payments transparency13% of score
Has Open Payments disclosures (2024)

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.

Drug	Part D claims (2024)	Beneficiaries
Methylprednisolone	45	45
Albuterol Sulfatebrand: Albuterol Sulfate Hfa	44	44
Azithromycin	44	44
Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro	28	28
Ciprofloxacin Hcl	23	23
Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass	22	21
Mupirocin	18

Transparency — industry payments

Based on CMS Open Payments, 2024; not all care is captured.

$125 across 1 record (Open Payments 2024)

Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.

Enumerated: 2023-11-21
Last updated: 2023-11-29
Certified: 2023-11-29

Frequently asked questions

What is Nathan Hwang's NPI number?: Nathan Hwang's National Provider Identifier (NPI) is 1831964758, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Nathan Hwang's specialty?: Nathan Hwang is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
Where is Nathan Hwang located?: Nathan Hwang's practice location on file with NPPES is 17612 17th St Ste 101, Tustin, CA 92780-1962.
What is Nathan Hwang's phone number?: The practice phone number listed in the NPPES registry for Nathan Hwang is (714) 243-5450.
Does Nathan Hwang accept Medicare?: Nathan Hwang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Nathan Hwang's NPI active?: Yes — Nathan Hwang's NPI (1831964758) is active in the NPPES registry as of the last update on 2023-11-29.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

What this provider prescribes (Medicare Part D)

Transparency — industry payments

Registry dates

Frequently asked questions

Specialties & taxonomies

Frequently asked questions

Profile Score

What this provider prescribes (Medicare Part D)

Transparency — industry payments