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Edit this profileWhere to find Timothy S. Johnston, M.D.
- Merced location main office
3349 G St Ste F, Merced, CA 95340 - Merced location
3170 Collins Dr Ste B, Merced, CA 95348
About Dr. Johnston
Based in Merced, CA, Timothy S. Johnston, M.D. is listed in the NPI registry under family medicine. Timothy graduated from Geisel School of Medicine at Dartmouth in 1985. Timothy is also listed as specializing in emergency medical services. Medicare claims data shows Timothy provided 10,096 services to 5,640 patients. The services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, and subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes. NPI 1528097847 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (209) 349-8459
- Email not available
Practice Locations
3349 G ST STE F
Merced, CA 95340
3170 Collins Dr Ste B
Merced, CA 95348
Conditions Commonly Evaluated or Treated
Within Family Medicine generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
- Allergies
- Diabetes
- Flu
- Hypothyroidism
- Strep throat
- UTI
Cardiometabolic
Digestive
Genitourinary and reproductive
- Erectile dysfunction
- Heavy periods
Musculoskeletal and pain
Neurologic and behavioral
Respiratory and infectious
- Acute bronchitis
- Asthma
- Sinus infection
Skin
Common childhood and ear conditions
- Ear infection
- Pink eye
Pain & Joints
Procedures & services
Most searched procedures
- Annual physical
- Blood test
- Flu shot
- Medicare wellness visit
- Sick visit
- TB test
- Well-woman exam
Preventive interventions
- Birth control counseling
- Smoking cessation counseling
Screening and testing
- Cholesterol screening
- Depression screening
- Diabetes and prediabetes screening
- EKG
Diagnostic Tests
- COVID-19 testing
- Rapid Strep and Flu Swabs
- Urine Drug Screen
Exams & Screenings
- Camp and School Physical
- Pre-Op Clearance Exam
Foot and Leg Pain
- Toenail Fungus Treatment
Heart & Circulation
Injections
- Immunotherapy
- Vitamin B12 Injections
Lungs & Breathing
Minor Procedures
- Burn and Wound Care
- Ingrown toenail removal
- Suture removal
Occupational Health
- DOT Physical
Office procedures
- Earwax removal
- Incision and drainage of an abscess
- Superficial foreign-body removal
Pain Management
- Joint injections
Preventive Care
- Chronic Illness Checkup
- Routine Vaccines
- Travel Vaccines And Consult
Respiratory
Senior Care
Sexual & Reproductive Health
- STD Swabs and Screening
Skin Procedures
- Cyst Removal
- Precancerous Sun Spot Freezing
- Skin Tag Removal
- Wart Removal
Sleep Health
- At-Home Sleep Study Order
Urgent Care Procedures
- Stitches and Laceration Repair
Wellness & Weight
- Weight Management Consult
Women's Health
- Hormone Replacement Therapy Consultation
Procedures Most Often Billed to Medicare
10,096 services · 5,640 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Dxa bone density measurement of hip, pelvis, spine including spine fracture assessment | Imaging | 77085 |
743 | More than most peers in Family Medicine |
| Calculation of trabecular bone score (tbs) using imaging data with interpretation and report on fracture risk | Imaging | 77089 |
320 | Too few peers to compare |
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
259 | More than most peers in Family Medicine |
| Influenza vaccine split virus, preservative free | Treatment | 90662 |
150 | More than most peers in Family Medicine |
| Injection, triamcinolone acetonide, not otherwise specified, 10 mg | Drug given | J3301 |
284 | More often than most peers in Family Medicine |
| Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg | Drug given | J3420 |
163 | More than most peers in Family Medicine |
| Injection, ketorolac tromethamine, per 15 mg | Drug given | J1885 |
129 | More often than most peers in Family Medicine |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
2,839 | More than most peers in Family Medicine |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
1,103 | More than most peers in Family Medicine |
| Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | Office visit | 99309 |
1,035 | More than most peers in Family Medicine |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other family doctors at this location 3
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 8
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 24 related providers in 3 groups
Other family doctors in Merced 8
Same specialty, same city.
Trained at Geisel School of Medicine at Dartmouth 8
Other providers in the same specialty who trained at the same institution.
Class of 1985 at Geisel School of Medicine at Dartmouth 8
Providers who graduated from the same medical school in the same year.
Common questions
What is Timothy S. Johnston's specialty?
Timothy S. Johnston is a family doctor in Merced, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Family Medicine”.
NPI registry
Where can I find Timothy S. Johnston?
Timothy S. Johnston is listed at 3349 G St Ste F, Merced, CA 95340. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Timothy S. Johnston?
The number on file is (209) 349-8459. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Timothy S. Johnston?
Timothy S. Johnston's National Provider Identifier is 1528097847. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Timothy S. Johnston's education?
Timothy S. Johnston attended Geisel School of Medicine at Dartmouth, graduating in 1985. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Timothy S. Johnston have?
Timothy S. Johnston has 41 years experience. Calculated from a graduation year of 1985, reported in the CMS National Downloadable File.
CMS public data
What is Timothy S. Johnston known for?
According to Medicare billing data, Timothy S. Johnston performs imaging including dxa bone density measurement of hip, pelvis, spine including spine fracture assessment and calculation of trabecular bone score using imaging data with interpretation and report on fracture risk; provides treatments such as injection of drug or substance under skin or into muscle and influenza vaccine split virus, preservative free, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Timothy S. Johnston's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Timothy S. Johnston. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.