Joseph Sullivan, MD
NPI 1518953710 · Internal Medicine Physician · Wareham, MA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joseph Sullivan, MD is a Internal Medicine Physician provider in Wareham, MA (NPI 1518953710).
Provider details
- NPI number
- 1518953710
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 73361 (MA)
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
106 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) |
|---|---|---|
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 106 | $49 |
Typical Medicare-allowed amounts for these services range $49–$49 (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 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Buprenorphine Hcl/Naloxone Hclbrand: Buprenorphine-Naloxone | 79 | 13 |
| Buprenorphine Hcl | 48 | — |
| Omeprazole | 45 | — |
| Atorvastatin Calcium | 43 | — |
| Gabapentin | 30 | — |
| Famotidine | 27 | — |
| Lorazepam |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-09-22
- Last updated
- 2025-04-30
- Certified
- 2025-04-30
Frequently asked questions
- What is Joseph Sullivan's NPI number?
- Joseph Sullivan's National Provider Identifier (NPI) is 1518953710, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joseph Sullivan's specialty?
- Joseph Sullivan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Joseph Sullivan located?
- Joseph Sullivan's practice location on file with NPPES is 261 Main St Ste B, Wareham, MA 02571-2111.
- What is Joseph Sullivan's phone number?
- The practice phone number listed in the NPPES registry for Joseph Sullivan is (508) 295-7174.
- Does Joseph Sullivan accept Medicare?
- Joseph Sullivan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joseph Sullivan's NPI active?
- Yes — Joseph Sullivan's NPI (1518953710) is active in the NPPES registry as of the last update on 2025-04-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.