Clarissa Harrington, RN
NPI 1033818869 · Nurse Practitioner · Philadelphia, PA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Clarissa Harrington, RN is a Nurse Practitioner provider in Philadelphia, PA (NPI 1033818869).
Provider details
- NPI number
- 1033818869
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- RN
- Sex
- Female
- Sole proprietor
- No
- License
- RN714427 (PA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service 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
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
991 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 Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 314 | $64 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 280 | $93 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 144 | $93 |
| Initial Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 35 Minutes99305 | 108 | $115 |
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 62 | $64 |
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, at Least 10 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 23 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl | 32 | 11 |
| Atorvastatin Calcium | 29 | 22 |
| Apixabanbrand: Eliquis | 28 | 11 |
| Gabapentin | 17 | 13 |
| Sodium Zirconium Cyclosilicatebrand: Lokelma | 17 | — |
| Lorazepam | 17 | — |
| Lacosamide | 15 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2023-03-01
- Last updated
- 2025-07-10
- Certified
- 2025-07-10
Frequently asked questions
- What is Clarissa Harrington's NPI number?
- Clarissa Harrington's National Provider Identifier (NPI) is 1033818869, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Clarissa Harrington's specialty?
- Clarissa Harrington is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Clarissa Harrington located?
- Clarissa Harrington's practice location on file with NPPES is 1426 Dickinson St, Philadelphia, PA 19146-4842.
- What is Clarissa Harrington's phone number?
- The practice phone number listed in the NPPES registry for Clarissa Harrington is (269) 271-8914.
- Does Clarissa Harrington accept Medicare?
- Clarissa Harrington is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Clarissa Harrington's NPI active?
- Yes — Clarissa Harrington's NPI (1033818869) is active in the NPPES registry as of the last update on 2025-07-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.