Katarzyna Tesmer, MD
NPI 1679662753 · Neonatal-Perinatal Medicine Physician · Orange, CA
Katarzyna Tesmer, MD is a Neonatal-Perinatal Medicine Physician provider in Orange, CA (NPI 1679662753).
Provider details
- NPI number
- 1679662753
- Entity type
- Individual
- Primary specialty
- Neonatal-Perinatal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A53721 (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
19 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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$219 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
Registry dates
- Enumerated
- 2006-10-12
- Last updated
- 2007-07-08
Frequently asked questions
- What is Katarzyna Tesmer's NPI number?
- Katarzyna Tesmer's National Provider Identifier (NPI) is 1679662753, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katarzyna Tesmer's specialty?
- Katarzyna Tesmer is listed in the NPPES registry with a primary specialty of Neonatal-Perinatal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Katarzyna Tesmer located?
- Katarzyna Tesmer's practice location on file with NPPES is 455 S Main St, Orange, CA 92868-3835.
- What is Katarzyna Tesmer's phone number?
- The practice phone number listed in the NPPES registry for Katarzyna Tesmer is (714) 532-8620.
- Is Katarzyna Tesmer's NPI active?
- Yes — Katarzyna Tesmer's NPI (1679662753) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.