Aja Castillo, N.P.
NPI 1205383064 · Family Nurse Practitioner · Long Beach, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Aja Castillo, N.P. is a Family Nurse Practitioner provider in Long Beach, CA (NPI 1205383064).
Provider details
- NPI number
- 1205383064
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- N.P.
- Sex
- Female
- Sole proprietor
- No
- License
- 95003290 (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 tenure28% of score
9 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
315 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Acupuncture With Electrical Stimulation, Each Additional 15 Minutes97814 | 110 | $33 |
| Injection of Trigger Points, 3 Or More Muscles20553 | 90 | $56 |
| Acupuncture With Electrical Stimulation, Initial 15 Minutes97813 | 74 | $42 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 21 | $102 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 20 | $84 |
Typical Medicare-allowed amounts for these services range $33–$102 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2016-09-08
- Last updated
- 2016-09-08
Frequently asked questions
- What is Aja Castillo's NPI number?
- Aja Castillo's National Provider Identifier (NPI) is 1205383064, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Aja Castillo's specialty?
- Aja Castillo is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Aja Castillo located?
- Aja Castillo's practice location on file with NPPES is 1050 Linden Ave, Long Beach, CA 90813-3321.
- What is Aja Castillo's phone number?
- The practice phone number listed in the NPPES registry for Aja Castillo is (562) 491-9000.
- Does Aja Castillo accept Medicare?
- Aja Castillo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Aja Castillo's NPI active?
- Yes — Aja Castillo's NPI (1205383064) is active in the NPPES registry as of the last update on 2016-09-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.