Katherine Won, O.D.
NPI 1649267279 · Optometrist · Harrisburg, PA
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Won, O.D. is a Optometrist provider in Harrisburg, PA (NPI 1649267279).
Provider details
- NPI number
- 1649267279
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- O.D.
- Sex
- Female
- Sole proprietor
- No
- License
- OEG001685 (PA)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
170 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 | 71 | $85 |
| Photography of the Retina92250 | 54 | $34 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 28 | $105 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 17 | $53 |
Typical Medicare-allowed amounts for these services range $34–$105 (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.
$209 across 10 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 (2)
- 4100 Linglestown RdHarrisburg, PA 17112Phone: (717) 657-2020Fax: (717) 657-2071
- 9677 Lee HwyFairfax, VA 22031-2304Phone: (703) 383-1100
Registry dates
- Enumerated
- 2005-09-29
- Last updated
- 2019-05-03
Frequently asked questions
- What is Katherine Won's NPI number?
- Katherine Won's National Provider Identifier (NPI) is 1649267279, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Won's specialty?
- Katherine Won is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Katherine Won located?
- Katherine Won's practice location on file with NPPES is 4100 Linglestown Rd, Harrisburg, PA 17112.
- What is Katherine Won's phone number?
- The practice phone number listed in the NPPES registry for Katherine Won is (717) 657-2020.
- Does Katherine Won accept Medicare?
- Katherine Won is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Won's NPI active?
- Yes — Katherine Won's NPI (1649267279) is active in the NPPES registry as of the last update on 2019-05-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.