Deirdre Clark, NP
NPI 1811251713 · Adult Health Nurse Practitioner · Willimantic, CT
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Deirdre Clark, NP is a Adult Health Nurse Practitioner provider in Willimantic, CT (NPI 1811251713).
Provider details
- NPI number
- 1811251713
- Entity type
- Individual
- Primary specialty
- Adult Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- NPP37710 (RI)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
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 tenure25% of score
14 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
248 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 | 248 | $114 |
Typical Medicare-allowed amounts for these services range $114–$114 (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 · 41 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoprolol Succinate | 417 | 172 |
| Atorvastatin Calcium | 286 | 115 |
| Apixabanbrand: Eliquis | 264 | 104 |
| Furosemide | 149 | 65 |
| Rosuvastatin Calcium | 139 | 58 |
| Amlodipine Besylate | 134 | 55 |
| Isosorbide Mononitrate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$280 across 12 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 326 Washington StNorwich, CT 06360-2740Phone: (860) 889-8331
Registry dates
- Enumerated
- 2012-06-26
- Last updated
- 2023-04-25
- Certified
- 2023-04-25
Frequently asked questions
- What is Deirdre Clark's NPI number?
- Deirdre Clark's National Provider Identifier (NPI) is 1811251713, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Deirdre Clark's specialty?
- Deirdre Clark is listed in the NPPES registry with a primary specialty of Adult Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Deirdre Clark located?
- Deirdre Clark's practice location on file with NPPES is 5 Founders St Ste 102, Willimantic, CT 06226-2050.
- What is Deirdre Clark's phone number?
- The practice phone number listed in the NPPES registry for Deirdre Clark is (860) 456-2898.
- Does Deirdre Clark accept Medicare?
- Deirdre Clark is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Deirdre Clark's NPI active?
- Yes — Deirdre Clark's NPI (1811251713) is active in the NPPES registry as of the last update on 2023-04-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.