Theresa Castillejo
NPI 1326757840 · Family Nurse Practitioner · West Hartford, CT
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Theresa Castillejo is a Family Nurse Practitioner provider in West Hartford, CT (NPI 1326757840).
Provider details
- NPI number
- 1326757840
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
3 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
175 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) |
|---|---|---|
| Injection of Anesthetic Agent And/Or Steroid Into Upper Neck and Back of Head Nerve64405 | 45 | $67 |
| Injection of Anesthetic Agent And/Or Steroid Into Face Nerve64400 | 44 | $37 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 36 | $114 |
| Injection of Chemical for Paralysis of Facial and Neck Nerve Muscles on Both Sides of Face64615 | 27 | $108 |
| Injection of Trigger Points, 1-2 Muscles20552 | 12 | $18 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 11 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rimegepant Sulfatebrand: Nurtec Odt | 39 | 13 |
| Topiramate | 33 | 11 |
| Nortriptyline Hcl | 29 | 11 |
| Sumatriptan Succinate | 27 | 13 |
| Galcanezumab-Gnlmbrand: Emgality Pen | 25 | — |
| Erenumab-Aooebrand: Aimovig Autoinjector | 20 | — |
| Gabapentin | 19 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,228 across 65 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
Registry dates
- Enumerated
- 2022-11-23
- Last updated
- 2022-11-29
- Certified
- 2022-11-29
Frequently asked questions
- What is Theresa Castillejo's NPI number?
- Theresa Castillejo's National Provider Identifier (NPI) is 1326757840, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Theresa Castillejo's specialty?
- Theresa Castillejo is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Theresa Castillejo located?
- Theresa Castillejo's practice location on file with NPPES is 65 Memorial Rd Ste 508, West Hartford, CT 06107-4233.
- What is Theresa Castillejo's phone number?
- The practice phone number listed in the NPPES registry for Theresa Castillejo is (860) 696-2925.
- Does Theresa Castillejo accept Medicare?
- Theresa Castillejo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Theresa Castillejo's NPI active?
- Yes — Theresa Castillejo's NPI (1326757840) is active in the NPPES registry as of the last update on 2022-11-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.