Andrew Blasius Johnston, MD
Ophthalmology · Knoxville, TN
At a glance
1124 E Weisgarber Rd Ste 100, Knoxville, TN 37909-2686
Published activity: Cataract surgery · Skin biopsy. View counts and coverage
NPPES record updated May 24, 2022. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
1124 E Weisgarber Rd Ste 100Knoxville, TN 37909-2686
Additional reported practice locations
628 Smithview DrMaryville, TN 378036100
Phone: 8655840905 104 Keller Ln
Maryville, TN 378016201
Phone: 8655840905 437 S Illinois Ave
Oak Ridge, TN 378307510
Phone: 8655840905 4613 Papermill Dr
Knoxville, TN 379091971
Phone: 8655840905 4829 N Broadway St Ste 103
Knoxville, TN 379182067
Phone: 8655840905 12744 Kingston Pike Ste 108
Knoxville, TN 379340941
Phone: 8655840905 962 Dolly Parton Pkwy
Sevierville, TN 378623707
Phone: 8655840905 750 Winfield Dunn Pkwy Unit 120
Sevierville, TN 378765566
Phone: 8655840905 1924 Alcoa Hwy # U-114
Knoxville, TN 379201511
Phone: 8653056501 10841 Hardin Valley Rd
Knoxville, TN 379321410
Phone: 8655840905
Education & affiliations
- Medical / professional school
- University Of Tennessee, Hsc, College Of Medicine
- Graduation year
- 2018
- CMS specialties
- Ophthalmology
Practice groups
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
| Procedure category | Published Medicare activity |
|---|---|
| Cataract surgery | 117 |
| Skin biopsy | 1-10 |
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Find providers with a similar service mix
Compare 2024 published Medicare activity in the same reported specialty, here or in another city.
Industry-reported general payments
Includes reported transfers of value, such as meals, travel, or consulting. Payments do not establish improper conduct or quality of care. Research funding and ownership values are excluded from this total.
See payment purposes and reporting companies
Reported purposes
| Purpose | Amount |
|---|---|
| Food and beverage | $55.76 |
Reporting companies
| Company | Amount |
|---|---|
| ALCON VISION LLC | $55.76 |
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Ophthalmology
- Taxonomy code
- 207W00000X
- Enumeration date
- Apr 7, 2018
- Record updated
- May 24, 2022
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- MD
Reported taxonomies and licenses
390200000X
207W00000X · Primary
License reported: 65229 TN
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
1124 E Weisgarber Rd Ste 100Knoxville, TN 37909-2686
- Phone
- (658) 584-0905
Mailing address
1124 E WEISGARBER RD STE 100KNOXVILLE, TN 379092686
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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