MIA ULANI CASTRO M.D.
NPI 1740668201
Anesthesiology in New Haven, CT
About Mia Ulani Castro M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MIA ULANI CASTRO M.D. (NPI 1740668201) is an individual anesthesiology provider in New Haven, Connecticut, licensed in New York (303881) and active in the NPI registry since May 2015. She is enrolled in Medicare PECOS, is affiliated with John T Mather Memorial Hospital Of Port Jefferson, and is a graduate of Other (2015).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Mia Ulani Castro M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
4Medicare enrollment records show Mia Castro reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Rocky Point, NY 11778
- Reassigned Medicare billing, New York enrollment
- 233 clinicians in this Medicare group
Chappaqua, NY 10514
- Reassigned Medicare billing, New York enrollment
- 1,406 clinicians in this Medicare group
Valhalla, NY 10595
- Reassigned Medicare billing, New York enrollment
- 1,663 clinicians in this Medicare group
Cortlandt Manor, NY 10567
- Reassigned Medicare billing, New York enrollment
- 1,074 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 2
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
John T Mather Memorial Hospital Of Port Jefferson
Acute Care Hospitals · Port Jefferson, NYOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
NEW HAVEN, CT 06510
NEW HAVEN, CT 06510
NEW HAVEN, CT 06510
NEW HAVEN, CT 06510
NEW HAVEN, CT 06510
NEW HAVEN, CT 06510
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Mia Castro's NPI number?
The NPI number for Mia Castro is 1740668201. It was assigned to this individual provider in the NPPES registry on May 15, 2015.
Where is Mia Castro located?
Mia Castro practices at 333 Cedar St Tompkins 3, New Haven, CT 06510. The listed phone number is (203) 785-2802.
What is Mia Castro's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Mia Castro enrolled in Medicare?
Yes. Mia Castro is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Mia Castro's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mia Castro reassigns Medicare benefits to 4 organizations: Long Island Anesthesia Physicians LLP (Rocky Point, NY), North Shore - Lij Anesthesiology, PC (Chappaqua, NY), Westchester Medical Center Advanced Physician Services PC (Valhalla, NY) and New York University (Cortlandt Manor, NY). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mia Castro's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mia Castro accept?
Health plans from Oscar Insurance Company list Mia Castro as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Mia Castro affiliated with any hospitals?
According to CMS data, Mia Castro is affiliated with John T Mather Memorial Hospital Of Port Jefferson.
When was this NPI record last updated?
The NPPES record for Mia Castro was last updated on April 19, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.