NPPES file of Aug 9, 2026

Allison H. Simon, LCSW-C

Clinical Social Worker · Timonium, MD

Allison H. Simon, LCSW-C is a clinical social worker with a practice address in Timonium, Maryland, and NPI 1114224052, issued on Feb 11, 2011. Check the license (Maryland 15991, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1114224052
Name
Allison H. Simon
Credential
LCSW-C
Primary taxonomy
Clinical Social Worker 1041C0700X
License number
15991 MD
Self-reported in NPPES; status is on the state search
Practice location
1931 Greenspring Dr, Timonium, MD 21093
Phone
(410) 453-9553
Enumerated
Feb 11, 2011
Record last updated
Jul 10, 2024
Fax
(410) 453-9552
Medicare enrollment
Enrolled (PECOS I20110509000263); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1931 Greenspring Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Lisa Ashton, CRNP-PMHPsychiatric/Mental Health Registered Nurse1083734974
  2. Daniel Cashen, LCSW-CClinical Social Worker1407260979
  3. Carol Dell'Uomo, LCSW-CClinical Social Worker1437355252
  4. James Henschen, LCPCProfessional Counselor1730314618
  5. Margherita McMullen, LCSW-CClinical Social Worker1124251806
  6. Heidi Que, LCSW-CClinical Social Worker1710201306

Verify Allison H. Simon 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 15991
    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.

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Bills Medicare through 2 group practices

  1. Arundel Mental Health Professionals LCTimonium, MD
  2. Cedar Ridge Counseling Centers, LLCTimonium, MD

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Allison H. Simon among 9,007 clinical social worker records in Maryland

Allison H. Simon, LCSW-C is one of 9,007 clinical social worker records with a practice address in Maryland. 11% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 32% of them.

  • NPI issued2011 · 32% of these records are older, 64% newer
  • In a Medicare fileYes · 11% of these records are
  • In the CMS Doctors and Clinicians fileYes · 19% of these records are
  • Graduated2001 · median 2006 among the 1,685 with a school on file
  • Record last updated2024 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1041C0700X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

53 clinical social worker records list a practice address in Timonium

They are 53 of the 612 NPPES records with a practice address in Timonium, and 9,007 clinical social worker records in Maryland.

The 8 clinical social worker records with the nearest ZIP codes

  1. Richard Berger, LCSW-CLutherville, MD 210931558389130
  2. Rebecca Chandler, LCSW-CLutherville Timonium, MD 210931043223001
  3. Rose Edwards, LCSW-CLutherville, MD 210931548214661
  4. Mary French, LCSW-CLutherville, MD 210931376640920
  5. Spencer Gear, LCSW-CTimonium, MD 210931043237746
  6. Kathy Hammel, LCSW-CTimonium, MD 210931356443873
  7. Christine Hess, LCSW-CLutherville, MD 210931821001991
  8. Jane Krimmel, LCSW-CLutherville, MD 210931225051352

Common questions

What is Allison H. Simon, LCSW-C's NPI number?

Allison H. Simon, LCSW-C's National Provider Identifier (NPI) is 1114224052, issued on Feb 11, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Allison H. Simon, LCSW-C located?

The NPPES record lists a practice address at 1931 Greenspring Dr, Timonium, MD, 21093. Phone: (410) 453-9553. Providers update this record themselves, so call before visiting.

How can I verify Allison H. Simon, LCSW-C's license?

NPPES lists Maryland license number 15991, 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. 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.