NPPES file of Aug 9, 2026

Alexis Morgan Siejack, M.S.

Behavior Analyst · Baltimore, MD

Alexis Morgan Siejack, M.S. is a behavior analyst with a practice address in Baltimore, Maryland, and NPI 1396307906, issued on Jul 3, 2019. Check the license (Maryland LBA964, as entered in NPPES) with the Maryland board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1396307906
Name
Alexis Morgan Siejack
Credential
M.S.
Primary taxonomy
Behavior Analyst 103K00000X
License number
LBA964 MD
Self-reported in NPPES; status is on the state search
Practice location
6 Glenwest CT, Baltimore, MD 21237
Phone
(443) 591-0406
Enumerated
Jul 3, 2019
Record last updated
Jul 3, 2021 (not updated in 5 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
Download card Updates feed

Verify Alexis Morgan Siejack in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Maryland board licenses this profession
    Search for license LBA964    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Maryland license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

Behavior Analyst providers in Maryland

There are 1,550 behavior analyst records in Maryland. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 1,550 in Maryland → Every provider in Baltimore →

Other behavior analyst records in Maryland

  1. Ruha AbateDerwood, MD1538623244
  2. Lydia AberaSilver Spring, MD1396474359
  3. Yoseph AbergelOwings Mills, MD1396496840
  4. Michael Abrahams, LBABaltimore, MD1013673060
  5. Sydnie AbrechtPikesville, MD1962350223
  6. Chale't AcabRockville, MD1093320046
  7. Nkemdilim AchikeBaltimore, MD1083237143
  8. Ashli AdamsRockville, MD1154864635
  9. Bruce AdamsColumbia, MD1255998977
  10. Oluwatomisin AdepojuColumbia, MD1629518485

Common questions

What is Alexis Morgan Siejack, M.S.'s NPI number?

Alexis Morgan Siejack, M.S.'s National Provider Identifier (NPI) is 1396307906, issued on Jul 3, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Alexis Morgan Siejack, M.S. located?

The NPPES record lists a practice address at 6 Glenwest CT, Baltimore, MD, 21237. Phone: (443) 591-0406. Providers update this record themselves, so call before visiting.

How can I verify Alexis Morgan Siejack, M.S.'s license?

NPPES lists Maryland license number LBA964, as entered by the provider. Search the Maryland 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. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.