Nathan Kostiv, NNP-BC
NPI 1023594579 · Critical Care Neonatal Nurse Practitioner · Carmichael, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nathan Kostiv, NNP-BC is a Critical Care Neonatal Nurse Practitioner provider in Carmichael, CA (NPI 1023594579).
Provider details
- NPI number
- 1023594579
- Entity type
- Individual
- Primary specialty
- Critical Care Neonatal Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NNP-BC
- Sex
- Male
- Sole proprietor
- Yes
- License
- 95009504 (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 tenure33% of score
7 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- 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.
$13 across 1 record (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
Additional practice locations (1)
- 2315 Stockton BlvdSacramento, CA 95817-2201Phone: (916) 734-2011
Registry dates
- Enumerated
- 2018-07-18
- Last updated
- 2020-01-09
- Certified
- 2020-01-09
Frequently asked questions
- What is Nathan Kostiv's NPI number?
- Nathan Kostiv's National Provider Identifier (NPI) is 1023594579, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nathan Kostiv's specialty?
- Nathan Kostiv is listed in the NPPES registry with a primary specialty of Critical Care Neonatal Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Nathan Kostiv located?
- Nathan Kostiv's practice location on file with NPPES is 6501 Coyle Ave, Carmichael, CA 95608-0306.
- What is Nathan Kostiv's phone number?
- The practice phone number listed in the NPPES registry for Nathan Kostiv is (916) 537-5135.
- Does Nathan Kostiv accept Medicare?
- Nathan Kostiv is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nathan Kostiv's NPI active?
- Yes — Nathan Kostiv's NPI (1023594579) is active in the NPPES registry as of the last update on 2020-01-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.