John Oleary, DO
NPI 1871559807 · Internal Medicine Physician · Wakefield, RI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Oleary, DO is a Internal Medicine Physician provider in Wakefield, RI (NPI 1871559807).
Provider details
- NPI number
- 1871559807
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- Yes
- License
- DO333 (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
155 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 107 | $92 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 48 | $131 |
Typical Medicare-allowed amounts for these services range $92–$131 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 63 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 100 | 28 |
| Losartan Potassium | 99 | 28 |
| Rosuvastatin Calcium | 99 | 26 |
| Gabapentin | 73 | 18 |
| Prednisone | 72 | 51 |
| Diltiazem Hclbrand: Diltiazem 24hr Er (cd) | 70 | 16 |
| Pantoprazole Sodium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-04-26
- Last updated
- 2008-06-24
Frequently asked questions
- What is John Oleary's NPI number?
- John Oleary's National Provider Identifier (NPI) is 1871559807, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Oleary's specialty?
- John Oleary is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Oleary located?
- John Oleary's practice location on file with NPPES is 24 Salt Pond Rd H1, Wakefield, RI 02879.
- What is John Oleary's phone number?
- The practice phone number listed in the NPPES registry for John Oleary is (401) 789-2424.
- Does John Oleary accept Medicare?
- John Oleary is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Oleary's NPI active?
- Yes — John Oleary's NPI (1871559807) is active in the NPPES registry as of the last update on 2008-06-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.