Clifford O'Sullivan, APRN
NPI 1306568795 · Family Nurse Practitioner · Nashville, TN
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Clifford O'Sullivan, APRN is a Family Nurse Practitioner provider in Nashville, TN (NPI 1306568795).
Provider details
- NPI number
- 1306568795
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APRN
- Sex
- Male
- Sole proprietor
- Yes
- License
- 32435 (TN)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
3 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
80 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) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 35 | $140 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 25 | $7 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 20 | $97 |
Typical Medicare-allowed amounts for these services range $7–$140 (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.
Practice location
Mailing address
Additional practice locations (1)
- 1411 W Baddour PkwyLebanon, TN 37087-2513Phone: (818) 415-0040
Registry dates
- Enumerated
- 2022-09-13
- Last updated
- 2023-01-04
- Certified
- 2023-01-04
Frequently asked questions
- What is Clifford O'Sullivan's NPI number?
- Clifford O'Sullivan's National Provider Identifier (NPI) is 1306568795, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Clifford O'Sullivan's specialty?
- Clifford O'Sullivan is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Clifford O'Sullivan located?
- Clifford O'Sullivan's practice location on file with NPPES is 3601 the Vanderbilt Clinic, Nashville, TN 37232-2513.
- What is Clifford O'Sullivan's phone number?
- The practice phone number listed in the NPPES registry for Clifford O'Sullivan is (615) 322-5000.
- Does Clifford O'Sullivan accept Medicare?
- Clifford O'Sullivan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Clifford O'Sullivan's NPI active?
- Yes — Clifford O'Sullivan's NPI (1306568795) is active in the NPPES registry as of the last update on 2023-01-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.