Tamara Castillo Oconnor, FNP-C
NPI 1619738473 · Family Nurse Practitioner · Wauwatosa, WI
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tamara Castillo Oconnor, FNP-C is a Family Nurse Practitioner provider in Wauwatosa, WI (NPI 1619738473).
Provider details
- NPI number
- 1619738473
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-C
- Sex
- Female
- Sole proprietor
- No
- License
- 14703-33 (WI)
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
2 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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2024-01-18
- Last updated
- 2024-01-18
- Certified
- 2024-01-18
Frequently asked questions
- What is Tamara Castillo Oconnor's NPI number?
- Tamara Castillo Oconnor's National Provider Identifier (NPI) is 1619738473, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tamara Castillo Oconnor's specialty?
- Tamara Castillo Oconnor is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Tamara Castillo Oconnor located?
- Tamara Castillo Oconnor's practice location on file with NPPES is 11220 W Burleigh St # 100, Wauwatosa, WI 53222-3213.
- What is Tamara Castillo Oconnor's phone number?
- The practice phone number listed in the NPPES registry for Tamara Castillo Oconnor is (833) 247-9616.
- Does Tamara Castillo Oconnor accept Medicare?
- Tamara Castillo Oconnor is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tamara Castillo Oconnor's NPI active?
- Yes — Tamara Castillo Oconnor's NPI (1619738473) is active in the NPPES registry as of the last update on 2024-01-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.