Timothy Scott Johnston, M.D.
Family Medicine Physician · Merced, CA
Timothy Scott Johnston, M.D. is a family medicine physician with a practice address in Merced, California, and NPI 1528097847, issued on Jun 30, 2006. Check the license (California G58698, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Timothy Scott Johnston
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- G58698 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3349 G St Ste F, Merced, CA 95340
- Phone
- (209) 349-8459
- Enumerated
- Jun 30, 2006
- Record last updated
- Aug 4, 2023
- Fax
- (209) 580-4138
- Medicaid ID
- 00G586980 CA
- Medicare enrollment
- Enrolled (PECOS I20040913000562); accepts Medicare assignment
- Medical or professional school
- Geisel School Of Medicine At Dartmouth, 1985
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 3349 G St Ste F
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Zoe Anaman, M.D./M.P.H.Family Medicine Physician1326400532
- Mara Benitez, NPFamily Nurse Practitioner1285415141
- Gina Broussard, FNPFamily Nurse Practitioner1023564812
- Julie Davidson, FNPFamily Medicine Physician1205481157
- Maria Farrar, PNPPediatric Nurse Practitioner1952617524
- Stephanie Rose Lao, FNPFamily Nurse Practitioner1598466724
Verify Timothy Scott Johnston in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G58698Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.3 times the Medicare Part D claims of the average family medicine physician in 2024
8,152 Medicare Part D claims for 550 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 214 claims were for opioids.
Most prescribed
- Levothyroxine Sodium419 claims
- Atorvastatin Calcium390 claims
- Furosemide261 claims
- Metformin Hcl250 claims
- Eliquis233 claims
- Lisinopril227 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.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $43.83
2 payments; by number, the most common kind was food and beverage; the largest payer was Hologic Sales and Service, LLC. The 55,478 providers of this specialty with any payment received $902.55 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
- Timothy S Johnston MD PCMerced, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Timothy Scott Johnston among 17,133 family medicine physician records in California
Timothy Scott Johnston, M.D. is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 59% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1985 · median 2005 among the 10,652 with a school on file
- Record last updated2023 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
94 family medicine physician records list a practice address in Merced
They are 94 of the 2,836 NPPES records with a practice address in Merced, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Merced → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Vincent Ansley, MDMerced, CA 953401871584185
- David Barabe, M.D.Merced, CA 953401255361770
- Albert Col, M.D.Merced, CA 953401952411266
- Jeanette Kuizon, MDMerced, CA 953401962485243
- Aimee NagtalonMerced, CA 953401487698221
- George Nevatt, MDMerced, CA 953401538194196
- Maciej Ossowski, M. D.Merced, CA 953401346207883
- Suchitra Rao, MDMerced, CA 953401710932231
Common questions
What is Timothy Scott Johnston, M.D.'s NPI number?
Timothy Scott Johnston, M.D.'s National Provider Identifier (NPI) is 1528097847, issued on Jun 30, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Timothy Scott Johnston, M.D. located?
The NPPES record lists a practice address at 3349 G St Ste F, Merced, CA, 95340. Phone: (209) 349-8459. Providers update this record themselves, so call before visiting.
How can I verify Timothy Scott Johnston, M.D.'s license?
NPPES lists California license number G58698, 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 Timothy Scott Johnston, M.D. prescribe under Medicare Part D?
In 2024, Timothy Scott Johnston, M.D. had 8,152 Medicare Part D claims for 550 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Timothy Scott Johnston, M.D.'s MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.