What is Richard Yang's NPI number?

Richard Yang's National Provider Identifier (NPI) is 1871698449, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Richard Yang's specialty?

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

Where is Richard Yang located?

Richard Yang's practice location on file with NPPES is 3385 G St, Merced, CA 95340-0964.

What is Richard Yang's phone number?

The practice phone number listed in the NPPES registry for Richard Yang is (209) 385-3111.

Does Richard Yang accept Medicare?

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

Is Richard Yang's NPI active?

Yes — Richard Yang's NPI (1871698449) is active in the NPPES registry as of the last update on 2007-07-08.

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Richard Yang, O.D.

NPI 1871698449 · Optometrist · Merced, CA

Richard Yang, O.D. is a Optometrist provider in Merced, CA (NPI 1871698449).

Provider details

NPI number: 1871698449
Entity type: Individual
Primary specialty: OptometristEye and Vision Services Providers
Credential: O.D.
Sex: Male
Sole proprietor: No
License: 10657 (CA)

Practice location

3385 G St

Ste. C

Merced, CA 95340-0964

Phone: (209) 385-3111

Street-level locationGet directions

More CA providers

Mailing address

3385 G St

Merced, CA 95340-0964

Specialties & taxonomies

OptometristPrimary152W00000XLicense 10657 (CA)
Eye and Vision Services Providers

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

Profile Score

Detailed profile(92/100 index)

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

Registry tenure33% of score
20 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.

Transparency — industry payments

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

$731 across 37 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.

Enumerated: 2006-09-14
Last updated: 2007-07-08

Frequently asked questions

What is Richard Yang's NPI number?: Richard Yang's National Provider Identifier (NPI) is 1871698449, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Richard Yang's specialty?: Richard Yang is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
Where is Richard Yang located?: Richard Yang's practice location on file with NPPES is 3385 G St, Merced, CA 95340-0964.
What is Richard Yang's phone number?: The practice phone number listed in the NPPES registry for Richard Yang is (209) 385-3111.
Does Richard Yang accept Medicare?: Richard Yang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Richard Yang's NPI active?: Yes — Richard Yang's NPI (1871698449) is active in the NPPES registry as of the last update on 2007-07-08.

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

Transparency — industry payments

Registry dates

Frequently asked questions

Specialties & taxonomies

Profile Score

Transparency — industry payments

Frequently asked questions