John Warwick, MD
NPI 1730286865 · Family Medicine Physician · Modesto, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Warwick, MD is a Family Medicine Physician provider in Modesto, CA (NPI 1730286865).
Provider details
- NPI number
- 1730286865
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G69711 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
2,114 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 713 | $122 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 708 | $87 |
| Destruction of Precancer Skin Growth, 1 Growth17000 | 157 | $65 |
| Destruction of Precancer Skin Growth, 2-14 Growths17003 | 138 | $7 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 84 | $118 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 134 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Losartan Potassium | 422 | 130 |
| Levothyroxine Sodium | 343 | 99 |
| Amlodipine Besylate | 318 | 99 |
| Atorvastatin Calcium | 316 | 102 |
| Lisinopril | 298 | 87 |
| Tamsulosin Hcl | 269 | 83 |
| Rosuvastatin Calcium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$338 across 16 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-20
- Last updated
- 2009-03-17
Frequently asked questions
- What is John Warwick's NPI number?
- John Warwick's National Provider Identifier (NPI) is 1730286865, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Warwick's specialty?
- John Warwick is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Warwick located?
- John Warwick's practice location on file with NPPES is 205 West Granger Ave, Modesto, CA 95350-4425.
- What is John Warwick's phone number?
- The practice phone number listed in the NPPES registry for John Warwick is (209) 579-9930.
- Does John Warwick accept Medicare?
- John Warwick is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Warwick's NPI active?
- Yes — John Warwick's NPI (1730286865) is active in the NPPES registry as of the last update on 2009-03-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.