Constance Haddad, FNP
NPI 1811288665 · Family Nurse Practitioner · Rancho Cucamonga, CA
Constance Haddad, FNP is a Family Nurse Practitioner provider in Rancho Cucamonga, CA (NPI 1811288665).
Provider details
- NPI number
- 1811288665
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Female
- Sole proprietor
- No
- License
- 346691 (CA)
Specialties & taxonomies
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
15 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 · 6 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Amlodipine Besylate | 28 |
| Lisinopril | 20 |
| Levothyroxine Sodium | 15 |
| Metformin Hcl | 13 |
| Hydrochlorothiazide | 11 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-04-27
- Last updated
- 2012-06-12
Frequently asked questions
- What is Constance Haddad's NPI number?
- Constance Haddad's National Provider Identifier (NPI) is 1811288665, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Constance Haddad's specialty?
- Constance Haddad is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Constance Haddad located?
- Constance Haddad's practice location on file with NPPES is 8360 Red Oak St, Rancho Cucamonga, CA 91730-0607.
- What is Constance Haddad's phone number?
- The practice phone number listed in the NPPES registry for Constance Haddad is (909) 980-1946.
- Is Constance Haddad's NPI active?
- Yes — Constance Haddad's NPI (1811288665) is active in the NPPES registry as of the last update on 2012-06-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.