Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Crystal Sin, OD

Individual provider Optometrist · NPI 1861264723

Crystal Sin, OD is an Optometrist in Federal Way, Washington. Licensed in Washington. Registered with an NPI since 2023.

Licensed in
WA
In the registry since
2023
What do these letters mean?
OD — Doctor of Optometry
An optometrist: examines eyes, prescribes glasses and contacts, and treats many eye conditions.

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Practice location Address checks out

1705 S 324th Pl
Federal Way, WA 98003-8504
Phone: (253) 661-6005
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence OD61491957 (WA)

Record details

NPI number1861264723
Entity typeIndividual (Type 1)
GenderFemale
Credentials OD
Sole proprietorNo
NPI enumeratedOctober 24, 2023
Last updated in NPPESOctober 24, 2023
Certification dateOctober 24, 2023
Mailing address1705 S 324th Pl, Federal Way, WA 98003-8504

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