John Maszczak, O.D.
NPI 1659304947 · Optometrist · Columbus, OH
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Maszczak, O.D. is a Optometrist provider in Columbus, OH (NPI 1659304947).
Provider details
- NPI number
- 1659304947
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- O.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 5562 (OH)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 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
221 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 | 125 | $85 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 52 | $105 |
| Imaging of Optic Nerve92133 | 25 | $33 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 19 | $121 |
Typical Medicare-allowed amounts for these services range $33–$121 (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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-09
- Last updated
- 2012-08-28
Frequently asked questions
- What is John Maszczak's NPI number?
- John Maszczak's National Provider Identifier (NPI) is 1659304947, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Maszczak's specialty?
- John Maszczak is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is John Maszczak located?
- John Maszczak's practice location on file with NPPES is 1421 Grandview Ave, Columbus, OH 43212-2853.
- What is John Maszczak's phone number?
- The practice phone number listed in the NPPES registry for John Maszczak is (614) 488-2020.
- Does John Maszczak accept Medicare?
- John Maszczak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Maszczak's NPI active?
- Yes — John Maszczak's NPI (1659304947) is active in the NPPES registry as of the last update on 2012-08-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.