Eric William Johnston, MD
Ophthalmology Physician · Encinitas, CA
Eric William Johnston, MD is an ophthalmology physician with a practice address in Encinitas, California, and NPI 1114916053, issued on Oct 13, 2005. Check the license (California C169344, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Eric William Johnston
- Credential
- MD
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- C169344 CA
Self-reported in NPPES; status is on the state search - Practice location
- 477 N EL Camino Real Ste C202, Encinitas, CA 92024
- Phone
- (760) 631-3500
- Enumerated
- Oct 13, 2005
- Record last updated
- Nov 15, 2024
- Medicaid ID
- 036102349 IL
- Medicare enrollment
- Enrolled (PECOS I20201030001360); accepts Medicare assignment
- Medical or professional school
- Wayne State University School Of Medicine, 1995
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 2,899 in California → Look up another NPI →
Also registered at 477 N EL Camino Real Ste C202
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ardalan Aminlari, MDGlaucoma Specialist (Ophthalmology) Physician1639497258
- Tien Johnny Cao-Nguyen, ODOptometrist1477121713
- Bill Codner, O.D.Corneal and Contact Management Optometrist1245299338
- Alexander Foster, M.D.Cornea and External Diseases Specialist Physician1033407275
- Mona Moshtaghi, ODOptometrist1730609181
- Marianna Samuels, O.D.Optometrist1760767461
Verify Eric William Johnston in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C169344Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
62% fewer Medicare Part D claims than the average ophthalmology physician in 2024
574 Medicare Part D claims for 201 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 66% of claims.
Most prescribed
- Latanoprost179 claims
- Prednisolone Acetate65 claims
- Restasis41 claims
- Cyclosporine39 claims
- Timolol Maleate28 claims
- Dorzolamide-Timolol26 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): 91.6 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: $1,842.21
34 payments; by number, the most common kind was food and beverage; the largest payer was Alcon Vision LLC. 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
- Eyecare Solutions IncEncinitas, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Eric William Johnston among 2,899 ophthalmology physician records in California
Eric William Johnston, MD is one of 2,899 ophthalmology physician records with a practice address in California. 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 91% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1995 · median 2001 among the 1,907 with a school on file
- Record last updated2024 · 67% 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 California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in California
There are 2,899 ophthalmology physician records in California.
All 2,899 in California → Every provider in Encinitas → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Andre Aung, MDEncinitas, CA 920241750802880
- Michelle Crosby, M.D., PH.D.Encinitas, CA 920241558549303
- Srinivas Iyengar, MDEncinitas, CA 920241104030055
- Joan Kaestner, MDEncinitas, CA 920241184723728
- Richard Massengill, M.D.Encinitas, CA 920241649320292
- Jeffrey Morris, MDEncinitas, CA 920241093768186
- Arash Mozayan Isfahani, M.D.Encinitas, CA 920241093948176
- Ehsan Mozayan-Isfahani, MDEncinitas, CA 920241588924849
Common questions
What is Eric William Johnston, MD's NPI number?
Eric William Johnston, MD's National Provider Identifier (NPI) is 1114916053, issued on Oct 13, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Eric William Johnston, MD located?
The NPPES record lists a practice address at 477 N EL Camino Real Ste C202, Encinitas, CA, 92024. Phone: (760) 631-3500. Providers update this record themselves, so call before visiting.
How can I verify Eric William Johnston, MD's license?
NPPES lists California license number C169344, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Eric William Johnston, MD prescribe under Medicare Part D?
In 2024, Eric William Johnston, MD had 574 Medicare Part D claims for 201 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
What is Eric William Johnston, MD's MIPS final score?
The 2023 MIPS final score is 91.6 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.