Andrew Blasius Johnston, MD
Ophthalmology Physician · Knoxville, TN
Andrew Blasius Johnston, MD is an ophthalmology physician with a practice address in Knoxville, Tennessee, and NPI 1912404922, issued on Apr 7, 2018. Check the license (Tennessee 65229, as entered in NPPES) on the Tennessee Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Andrew Blasius Johnston
- Credential
- MD
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- 65229 TN
Self-reported in NPPES; status is on the state search - Practice location
- 1124 E Weisgarber RD Ste 100, Knoxville, TN 37909
- Phone
- (658) 584-0905
- Enumerated
- Apr 7, 2018
- Record last updated
- May 24, 2022
- Medicare enrollment
- Enrolled (PECOS I20220622003515); accepts Medicare assignment
- Medical or professional school
- University Of Tennessee, Hsc, College Of Medicine, 2018
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 366 in Tennessee → Look up another NPI →
Also registered at 1124 E Weisgarber RD Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Christa Cole, O.D.Optometrist1609006790
Verify Andrew Blasius Johnston in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTennessee Board of Medical Examiners
Search for license 65229Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
7% fewer Medicare Part D claims than the average ophthalmology physician in 2024
1,417 Medicare Part D claims for 425 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 35% of claims.
Most prescribed
- Latanoprost388 claims
- Prednisolone Acetate170 claims
- Dorzolamide-Timolol161 claims
- Timolol Maleate100 claims
- Neomycin-Polymyxin-Dexameth95 claims
- Ketorolac Tromethamine69 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 96 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $246.82
2 payments; by number, the most common kind was food and beverage; the largest payer was TG Therapeutics, Inc. The 13,221 providers of this specialty with any payment received $4,535.02 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Campbell Cunningham Taylor PCKnoxville, TN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Andrew Blasius Johnston among 366 ophthalmology physician records in Tennessee
Andrew Blasius Johnston, MD is one of 366 ophthalmology physician records with a practice address in Tennessee. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 90% of them.
- NPI issued2018 · 90% of these records are older, 8% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated2018 · median 2002 among the 247 with a school on file
- Record last updated2022 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in Tennessee
There are 366 ophthalmology physician records in Tennessee.
All 366 in Tennessee → Every provider in Knoxville → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Scott Barb, M.D.Knoxville, TN 379091609137595
- Philip Campbell, MDKnoxville, TN 379091821092560
- Leslie Cunningham, MDKnoxville, TN 379091073517728
- Christopher Haggerty, M.D.Knoxville, TN 379091609883479
- John Hoskins, M.D.Knoxville, TN 379091205832615
- Christopher Taylor, MDKnoxville, TN 379091013911791
- Gary Gitschlag, M.D.Knoxville, TN 379161699856567
- Allyson Schmitt, M.D.Knoxville, TN 379161457402216
Common questions
What is Andrew Blasius Johnston, MD's NPI number?
Andrew Blasius Johnston, MD's National Provider Identifier (NPI) is 1912404922, issued on Apr 7, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Andrew Blasius Johnston, MD located?
The NPPES record lists a practice address at 1124 E Weisgarber RD Ste 100, Knoxville, TN, 37909. Phone: (658) 584-0905. Providers update this record themselves, so call before visiting.
How can I verify Andrew Blasius Johnston, MD's license?
NPPES lists Tennessee license number 65229, as entered by the provider. Search the Tennessee Board of Medical Examiners at https://www.tn.gov/health/licensure/me.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Andrew Blasius Johnston, MD prescribe under Medicare Part D?
In 2024, Andrew Blasius Johnston, MD had 1,417 Medicare Part D claims for 425 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
What is Andrew Blasius Johnston, MD's MIPS final score?
The 2023 MIPS final score is 96 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.