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Edit this profileAt a glance
- 205 West Granger Ave, Modesto, CA 95350
About Dr. Warwick
John L. Warwick, MD practices family medicine in Modesto, CA. Medicare claims data shows John provided 2,294 services to 1,083 patients. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, and destruction of precancer skin growth, 1 growth. The provider's National Provider Identifier (NPI) is 1730286865.
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) 579-9930
- Email not available
Practice Locations
205 WEST GRANGER AVE
Modesto, CA 95350
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
Musculoskeletal and pain
Neurologic and behavioral
Respiratory and infectious
Skin
Common childhood and ear conditions
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
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
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
Preventive Care
- Chronic Illness Checkup
- Routine Vaccines
- Travel Vaccines And Consult
Respiratory
Senior Care
Sexual & Reproductive Health
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
2,294 services · 1,083 patients · 21 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Destruction of precancer skin growth, 1 growth | Procedure | 17000 |
157 | More than most peers in Family Medicine |
| Destruction of precancer skin growth, 2-14 growths | Procedure | 17003 |
138 | More often than most peers in Family Medicine |
| Biopsy of related skin growth, first growth | Procedure | 11102 |
21 | As often as other peers in Family Medicine |
| Limited ultrasound scan of abdomen | Imaging | 76705 |
16 | As often as other peers in Family Medicine |
| Ultrasound scan of head and neck soft tissue | Imaging | 76536 |
14 | Less often than most peers in Family Medicine |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
65 | More often than most peers in Family Medicine |
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
49 | As often as other peers in Family Medicine |
| Influenza vaccine split virus, preservative free | Treatment | 90662 |
37 | As often as other peers in Family Medicine |
| Electrocardiogram (ecg) 2-day continuous | Treatment | 93225 |
15 | Too few peers to compare |
| Application of light to destroy precancer skin growth | Treatment | 96567 |
13 | Too few peers to compare |
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 in Modesto 8
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1990 at Other 8
Providers who graduated from the same medical school in the same year.
More connections — 8 related providers in 1 group
Also performs Destruction of precancer skin growth, 1 growth 8
Providers in CA who bill this service to Medicare most often.
Common questions
What does Dr. Warwick specialize in?
Dr. Warwick is a family doctor in Modesto, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Family Medicine”.
NPI registry
Where is Dr. Warwick located?
Dr. Warwick is listed at 205 West Granger Ave, Modesto, CA 95350. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Warwick's phone number?
The number on file is (209) 579-9930. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Warwick?
Dr. Warwick's National Provider Identifier is 1730286865. 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
Where did Dr. Warwick go to medical school?
Dr. Warwick attended Other, graduating in 1990. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Warwick have?
Dr. Warwick has 36 years experience. Calculated from a graduation year of 1990, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Warwick do most often?
According to Medicare billing data, Dr. Warwick performs procedures including destruction of precancer skin growth, 1 growth, destruction of precancer skin growth, 2-14 growths and biopsy of related skin growth, first growth; reads or performs imaging such as limited ultrasound scan of abdomen and ultrasound scan of head and neck soft tissue; provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report and injection of drug or substance under skin or into muscle, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Warwick's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Warwick. If this is you, claiming it is free.
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