Sienna Monagan Lyon, LGPC
Mental Health Counselor · Cabin John, MD
Sienna Monagan Lyon, LGPC is a mental health counselor with a practice address in Cabin John, Maryland, and NPI 1730966938, issued on Sep 11, 2023. Check the license (Maryland LGP14303, 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.
- Name
- Sienna Monagan Lyon
- Credential
- LGPC
- Primary taxonomy
- Mental Health Counselor 101YM0800X
- License number
- LGP14303 MD
Self-reported in NPPES; status is on the state search - Practice location
- 7945 Macarthur Blvd Ste 214, Cabin John, MD 20818
- Phone
- (301) 987-7284
- Enumerated
- Sep 11, 2023
- Record last updated
- Sep 11, 2023
- Entity
- Type 1 · individual
8 nearest mental health counselor records → All 4,201 in Maryland → Look up another NPI →
Also registered at 7945 Macarthur Blvd Ste 214
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kelly Alpert, LMSWSocial Worker1760034946
- Samantha Ascanio, LMSWClinical Social Worker1538673678
- Dipika Daga, LGPCMental Health Counselor1902604986
- Adam Freidfertig, LGPCCounselor1912555871
- Patricia Frischtak, M.D.Psychiatry Physician1194824938
- Marian Hwang, LMSWClinical Social Worker1083128623
Verify Sienna Monagan Lyon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license LGP14303Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Sienna Monagan Lyon among 4,201 mental health counselor records in Maryland
Sienna Monagan Lyon, LGPC is one of 4,201 mental health counselor records with a practice address in Maryland. 7% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2023, is newer than 63% of them.
- NPI issued2023 · 63% of these records are older, 28% newer
- In a Medicare fileNo · 7% of these records are
- In the CMS Doctors and Clinicians fileNo · 11% of these records are
- Record last updated2023 · 37% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 101YM0800X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
7 mental health counselor records list a practice address in Cabin John
They are 7 of the 53 NPPES records with a practice address in Cabin John, and 4,201 mental health counselor records in Maryland. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 4,201 in Maryland → Every provider in Cabin John → Mental Health Counselor nationwide →
The 8 mental health counselor records with the nearest ZIP codes
- Dipika Daga, LGPCCabin John, MD 208181902604986
- Patric FarrellCabin John, MD 208181962239079
- Heather GustafsonCabin John, MD 208181346162591
- Jennifer Olson, LGPCCabin John, MD 208181659077535
- Alysa Romano, LPCCabin John, MD 208181013374180
- Daniela Wolf, LCPAT, ATR-BC, LCPCCabin John, MD 208181629477997
- Anita Alex, LGPATBethesda, MD 208171851048656
- Monica BachabiBethesda, MD 208171457909178
Common questions
What is Sienna Monagan Lyon, LGPC's NPI number?
Sienna Monagan Lyon, LGPC's National Provider Identifier (NPI) is 1730966938, issued on Sep 11, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Sienna Monagan Lyon, LGPC located?
The NPPES record lists a practice address at 7945 Macarthur Blvd Ste 214, Cabin John, MD, 20818. Phone: (301) 987-7284. Providers update this record themselves, so call before visiting.
How can I verify Sienna Monagan Lyon, LGPC's license?
NPPES lists Maryland license number LGP14303, 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.
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.