Physician Profile
Unclaimed ProfileAbout CASTILLO
Based in Washington, DC, Alejandro Castillo is listed in the NPI registry under anesthesiology assistant. Alejandro is also listed as specialising in student in an organized health care education program.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What does Dr. Castillo specialise in?
Dr. Castillo is an anesthesiology assistant in Washington, DC. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “ANESTHESIOLOGY ASSISTANT”.
NPI registry
Where is Dr. Castillo located?
Dr. Castillo is listed at 3800 RESERVOIR RD NW, Washington, DC 20007. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Castillo's phone number?
The number on file is (202) 444-2000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Castillo?
Dr. Castillo's National Provider Identifier is 1073274361. 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 Dr. Castillo go to medical school?
Dr. Castillo attended Other, graduating in 2022. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Castillo have?
Dr. Castillo has 4 years experience. Calculated from a graduation year of 2022, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Castillo do most often?
According to Medicare billing data, Dr. Castillo provides treatments such as anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope and anesthesia for procedure on small and large bowel using an endoscope. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Castillo's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Castillo. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (202) 444-2000
- Email not available
Practice Locations
3800 RESERVOIR RD NW
Washington, DC 20007
Procedures Most Often Billed to Medicare
83 services · 83 patients · 5 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | Anaesthesia | 00731 |
28 |
| Anesthesia for procedure on small and large bowel using an endoscope | Anaesthesia | 00813 |
18 |
| Anesthesia for procedure on gallbladder, pancreas, or liver using an endoscope | Anaesthesia | 00732 |
13 |
| Anesthesia for other procedure on lower leg, ankle, and foot bones | Anaesthesia | 01480 |
12 |
| Anesthesia for other procedure on large bowel using an endoscope | Anaesthesia | 00811 |
12 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Is this your profile?
Verify your identity to control how patients — and AI assistants — describe you.
Claim this profileRelated 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 1
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 anesthesiology assistants in Washington 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2022 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 8
Providers in DC who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.