What is Precious Hwang's NPI number?

Precious Hwang's National Provider Identifier (NPI) is 1598287104, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Precious Hwang's specialty?

Precious Hwang is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).

Where is Precious Hwang located?

Precious Hwang's practice location on file with NPPES is 7592 Sullivan Pl, Buena Park, CA 90621-3200.

What is Precious Hwang's phone number?

The practice phone number listed in the NPPES registry for Precious Hwang is (714) 872-3442.

Does Precious Hwang accept Medicare?

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

Is Precious Hwang's NPI active?

Yes — Precious Hwang's NPI (1598287104) is active in the NPPES registry as of the last update on 2018-03-17.

IndividualActiveAccepts Medicare

Precious Hwang, OD

NPI 1598287104 · Optometrist · Buena Park, CA

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

Precious Hwang, OD is a Optometrist provider in Buena Park, CA (NPI 1598287104).

Provider details

NPI number: 1598287104
Entity type: Individual
Primary specialty: OptometristEye and Vision Services Providers
Credential: OD
Sex: Female
Sole proprietor: Yes
License: 33704TLG (CA)

Specialties & taxonomies

OptometristPrimary152W00000XLicense 33704TLG (CA)
Eye and Vision Services Providers

Profile Score

Established profile(62/100 index)

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

Registry tenure25% of score
8 yrs in NPPES registry
Profile completeness25% of score
100% of core fields populated
Practice footprint15% of score
4 documented practice locations
Medicare service volume (vs. specialty peers)25% of score
70 Medicare services, 2024 (ranked within specialty)
Open Payments transparency10% of score
Has Open Payments disclosures (2024)

Medicare volume is ranked against active providers in the same specialty. 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 .

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213	39	$99
Established Patient Complete Exam of Visual System92014	31	$140

Typical Medicare-allowed amounts for these services range $99–$140 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.

Transparency — industry payments

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

$481 across 13 records (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.

Practice location

7592 Sullivan Pl

Buena Park, CA 90621-3200

Phone: (714) 872-3442

Street-level locationGet directions

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Mailing address