Alejandro Castillo
Anesthesiologist Assistant · Washington, DC
Alejandro Castillo is an anesthesiologist assistant with a practice address in Washington, District of Columbia, and NPI 1073274361, issued on Jan 7, 2022. Check the license (District of Columbia AA2000032, as entered in NPPES) with the District of Columbia board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Alejandro Castillo
- Primary taxonomy
- Anesthesiologist Assistant 367H00000X
- License number
- AA2000032 DC
Self-reported in NPPES; status is on the state search - Practice location
- 3800 Reservoir RD NW, Washington, DC 20007
- Phone
- (202) 444-2000
- Enumerated
- Jan 7, 2022
- Record last updated
- Nov 18, 2022
- Medicare enrollment
- Enrolled (PECOS I20221125000224); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest anesthesiologist assistant records → All 130 in District of Columbia → Look up another NPI →
Also registered at 3800 Reservoir RD NW
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Valiollah AbbassiPediatric Endocrinology Physician1073511275
- Ahmed AbdelfatahStudent in an Organized Health Care Education/Training Program1326918269
- Zeinab Abdi, M.D.Pediatrics Physician1861781437
Verify Alejandro Castillo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich District of Columbia board licenses this profession
Search for license AA2000032Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Medstar Medical Group II LLCWashington, DC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Alejandro Castillo among 130 anesthesiologist assistant records in District of Columbia
Alejandro Castillo is one of 130 anesthesiologist assistant records with a practice address in District of Columbia. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 56% of them.
- NPI issued2022 · 56% of these records are older, 35% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 85% of these records are
- Graduated2022 · median 2020 among the 111 with a school on file
- Record last updated2022 · 42% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 367H00000X and a District of Columbia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Anesthesiologist Assistant providers in District of Columbia
There are 130 anesthesiologist assistant records in District of Columbia.
All 130 in District of Columbia → Every provider in Washington → Anesthesiologist Assistant nationwide →
The 8 anesthesiologist assistant records with the nearest ZIP codes
- Rachel Browning, CAAWashington, DC 200071548012677
- Morgan Davis, CAAWashington, DC 200071134984701
- Helena GuoWashington, DC 200071235838160
- Caitlin HattenWashington, DC 200071396584280
- Parth Kalola, CAAWashington, DC 200071255897534
- Carolyn PalaskiWashington, DC 200071659032969
- Jongmi ParkWashington, DC 200071700712692
- Dulari PatelWashington, DC 200071366296220
Common questions
What is Alejandro Castillo's NPI number?
Alejandro Castillo's National Provider Identifier (NPI) is 1073274361, issued on Jan 7, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Alejandro Castillo located?
The NPPES record lists a practice address at 3800 Reservoir RD NW, Washington, DC, 20007. Phone: (202) 444-2000. Providers update this record themselves, so call before visiting.
How can I verify Alejandro Castillo's license?
NPPES lists District of Columbia license number AA2000032, as entered by the provider. Search the District of Columbia board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.