What is Benjamin Kwak's NPI number?

Benjamin Kwak's National Provider Identifier (NPI) is 1548035249, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Benjamin Kwak's specialty?

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

Where is Benjamin Kwak located?

Benjamin Kwak's practice location on file with NPPES is 508 Fletcher Dr, Warrenton, VA 20186-2183.

What is Benjamin Kwak's phone number?

The practice phone number listed in the NPPES registry for Benjamin Kwak is (540) 216-7632.

Does Benjamin Kwak accept Medicare?

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

Is Benjamin Kwak's NPI active?

Yes — Benjamin Kwak's NPI (1548035249) is active in the NPPES registry as of the last update on 2023-12-04.

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Benjamin Kwak, OD

NPI 1548035249 · Optometrist · Warrenton, VA

Benjamin Kwak, OD is a Optometrist provider in Warrenton, VA (NPI 1548035249).

Provider details

NPI number: 1548035249
Entity type: Individual
Primary specialty: OptometristEye and Vision Services Providers
Credential: OD
Sex: Male
Sole proprietor: No
License: 0618003353 (VA)

Practice location

508 Fletcher Dr

Warrenton, VA 20186-2183

Phone: (540) 216-7632

Street-level locationGet directions

More VA providers

Mailing address

5436 Heredity Ln

Gainesville, VA 20155-1328

Specialties & taxonomies

OptometristPrimary152W00000XLicense 0618003353 (VA)
Eye and Vision Services Providers

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

Profile Score

Basic profile(44/100 index)

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

Registry tenure28% of score
2 yrs in NPPES registry
Profile completeness28% of score
100% of core fields populated
Practice footprint17% of score
1 documented practice location
Medicare service volume (vs. specialty peers)28% of score
134 Medicare services, 2024 (ranked within specialty)

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 methodology.

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	45	$88
Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214	35	$124
New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204	31	$162
New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203	23	$108

Typical Medicare-allowed amounts for these services range $88–$162 (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.

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 1 distinct drug on file.

Drug	Part D claims (2024)	Beneficiaries
Tobramycin/Dexamethasonebrand: Tobramycin-Dexamethasone	18	12

Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do not include cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.

Enumerated: 2023-11-22
Last updated: 2023-12-04
Certified: 2023-12-04

Frequently asked questions

What is Benjamin Kwak's NPI number?: Benjamin Kwak's National Provider Identifier (NPI) is 1548035249, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Benjamin Kwak's specialty?: Benjamin Kwak is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
Where is Benjamin Kwak located?: Benjamin Kwak's practice location on file with NPPES is 508 Fletcher Dr, Warrenton, VA 20186-2183.
What is Benjamin Kwak's phone number?: The practice phone number listed in the NPPES registry for Benjamin Kwak is (540) 216-7632.
Does Benjamin Kwak accept Medicare?: Benjamin Kwak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Benjamin Kwak's NPI active?: Yes — Benjamin Kwak's NPI (1548035249) is active in the NPPES registry as of the last update on 2023-12-04.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

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	45	$88
Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214	35	$124
New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204	31	$162
New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203	23	$108

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 1 distinct drug on file.

Drug	Part D claims (2024)	Beneficiaries
Tobramycin/Dexamethasonebrand: Tobramycin-Dexamethasone	18	12

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)

Registry dates

Frequently asked questions

Specialties & taxonomies

Frequently asked questions

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)