Josephine Ko, OD
NPI 1053934935 · Optometrist · Arlington, MA
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Josephine Ko, OD is a Optometrist provider in Arlington, MA (NPI 1053934935).
Provider details
- NPI number
- 1053934935
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- OD
- Sex
- Female
- Sole proprietor
- No
- License
- 5442 (MA)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
6 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- 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.
$537 across 11 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
Mailing address
Additional practice locations (1)
- 1706, 1 Washington StreetSuite 101Wellesley Hills, MA 02481Phone: (781) 263-7360Fax: (781) 263-7369
Registry dates
- Enumerated
- 2020-05-26
- Last updated
- 2025-12-23
- Certified
- 2025-12-23
Frequently asked questions
- What is Josephine Ko's NPI number?
- Josephine Ko's National Provider Identifier (NPI) is 1053934935, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Josephine Ko's specialty?
- Josephine Ko is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Josephine Ko located?
- Josephine Ko's practice location on file with NPPES is 60 Massachusetts Ave, Arlington, MA 02474-8621.
- What is Josephine Ko's phone number?
- The practice phone number listed in the NPPES registry for Josephine Ko is (781) 316-0141.
- Does Josephine Ko accept Medicare?
- Josephine Ko is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Josephine Ko's NPI active?
- Yes — Josephine Ko's NPI (1053934935) is active in the NPPES registry as of the last update on 2025-12-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.