Charlotte Ter Haar, MD
NPI 1740741560 · Obstetrics & Gynecology Physician · Orange, CA
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Charlotte Ter Haar, MD is a Obstetrics & Gynecology Physician provider in Orange, CA (NPI 1740741560).
Provider details
- NPI number
- 1740741560
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A183786 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
7 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Estradiol | 150 | 104 |
| Mirabegronbrand: Myrbetriq | 38 | 15 |
| Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro | 27 | 25 |
| Methenamine Hippurate | 22 | 13 |
| Estradiolbrand: Estring | 17 | — |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 15 | 15 |
| Fosfomycin Tromethamine | 12 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$10,763 across 8 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
- 2019-03-26
- Last updated
- 2023-10-23
- Certified
- 2023-10-23
Frequently asked questions
- What is Charlotte Ter Haar's NPI number?
- Charlotte Ter Haar's National Provider Identifier (NPI) is 1740741560, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Charlotte Ter Haar's specialty?
- Charlotte Ter Haar is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Charlotte Ter Haar located?
- Charlotte Ter Haar's practice location on file with NPPES is 101 the City Dr S, Orange, CA 92868-3201.
- What is Charlotte Ter Haar's phone number?
- The practice phone number listed in the NPPES registry for Charlotte Ter Haar is (714) 456-2911.
- Does Charlotte Ter Haar accept Medicare?
- Charlotte Ter Haar is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Charlotte Ter Haar's NPI active?
- Yes — Charlotte Ter Haar's NPI (1740741560) is active in the NPPES registry as of the last update on 2023-10-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.