John Gaines, MD
NPI 1568457224 · Internal Medicine Physician · Smithfield, RI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Gaines, MD is a Internal Medicine Physician provider in Smithfield, RI (NPI 1568457224).
Provider details
- NPI number
- 1568457224
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD07187 (RI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
594 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 | 277 | $87 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 147 | $114 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 79 | $14 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 45 | $90 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 20 | $44 |
| Administration of Influenza Virus VaccineG0008 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 107 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 1,117 | 312 |
| Rosuvastatin Calcium | 841 | 241 |
| Losartan Potassium | 612 | 170 |
| Omeprazole | 488 | 149 |
| Lisinopril | 447 | 131 |
| Amlodipine Besylate | 415 | 115 |
| Levothyroxine Sodium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-09-19
- Last updated
- 2024-04-09
- Certified
- 2024-04-09
Frequently asked questions
- What is John Gaines's NPI number?
- John Gaines's National Provider Identifier (NPI) is 1568457224, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Gaines's specialty?
- John Gaines is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Gaines located?
- John Gaines's practice location on file with NPPES is 41 Sanderson Rd, Smithfield, RI 02917-2602.
- What is John Gaines's phone number?
- The practice phone number listed in the NPPES registry for John Gaines is (404) 949-0300.
- Does John Gaines accept Medicare?
- John Gaines is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Gaines's NPI active?
- Yes — John Gaines's NPI (1568457224) is active in the NPPES registry as of the last update on 2024-04-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.