Joanne Iennaco, APRN
NPI 1912337767 · Psychiatric/Mental Health Nurse Practitioner · Branford, CT
Enrolled with Medicare as Practitioner - Certified Clinical Nurse Specialist (cns) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joanne Iennaco, APRN is a Psychiatric/Mental Health Nurse Practitioner provider in Branford, CT (NPI 1912337767).
Provider details
- NPI number
- 1912337767
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APRN
- Sex
- Female
- Sole proprietor
- No
- License
- 4459 (CT)
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 tenure38% of score
12 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 32 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Divalproex Sodiumbrand: Divalproex Sodium Er | 84 |
| Olanzapine | 79 |
| Clonazepam | 69 |
| Clozapine | 62 |
| Trazodone Hcl | 49 |
| Mirtazapine | 46 |
| Aripiprazole | 38 |
| Benztropine Mesylate | 35 |
| Venlafaxine Hclbrand: Venlafaxine Hcl Er | 34 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2013-11-14
- Last updated
- 2018-04-13
Frequently asked questions
- What is Joanne Iennaco's NPI number?
- Joanne Iennaco's National Provider Identifier (NPI) is 1912337767, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joanne Iennaco's specialty?
- Joanne Iennaco is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Joanne Iennaco located?
- Joanne Iennaco's practice location on file with NPPES is 1090 Main St, Branford, CT 06405-3716.
- What is Joanne Iennaco's phone number?
- The practice phone number listed in the NPPES registry for Joanne Iennaco is (203) 285-5399.
- Does Joanne Iennaco accept Medicare?
- Joanne Iennaco is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joanne Iennaco's NPI active?
- Yes — Joanne Iennaco's NPI (1912337767) is active in the NPPES registry as of the last update on 2018-04-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.