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Edit this profileAt a glance
- 20 York St, Cb2041, New Haven, CT 06510
About Ronald Castillo
Ronald Castillo, APRN is a nurse practitioner practicing in New Haven, CT. Ronald is also listed as specializing in nurse practitioner — family. Medicare claims data shows Ronald provided 242 services to 141 patients. The services billed most often include subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes, subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes, and subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes. This provider record is associated with NPI 1174871719.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (203) 688-4748
- Email not available
Practice Locations
20 YORK ST CB2041
New Haven, CT 06510
Procedures Most Often Billed to Medicare
242 services · 141 patients · 4 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
90 | More often than most peers in Nurse Practitioner |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
85 | More often than most peers in Nurse Practitioner |
| Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | Office visit | 99231 |
39 | As often as other peers in Nurse Practitioner |
| Hospital discharge day management, more than 30 minutes | Office visit | 99239 |
28 | As often as other peers in Nurse Practitioner |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Related specialists at this location 8
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other nurse practitioners in New Haven 8
Same specialty, same city.
More connections — 16 related providers in 2 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2012 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Ronald Castillo specialize in?
Ronald Castillo is a nurse practitioner in New Haven, CT. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Ronald Castillo located?
Ronald Castillo is listed at 20 York St Cb2041, New Haven, CT 06510. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Ronald Castillo's phone number?
The number on file is (203) 688-4748. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Ronald Castillo?
Ronald Castillo's National Provider Identifier is 1174871719. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Ronald Castillo train?
Ronald Castillo attended Other, graduating in 2012. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Ronald Castillo have?
Ronald Castillo has 14 years experience. Calculated from a graduation year of 2012, reported in the CMS National Downloadable File.
CMS public data
What does Ronald Castillo do most often?
According to Medicare billing data, Ronald Castillo the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Ronald Castillo's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Ronald Castillo. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.