NPPES file of Aug 9, 2026

Cassandra Clarke-Williams, PH.D, LGPC

Mental Health Counselor · Columbia, MD

Cassandra Clarke-Williams, PH.D, LGPC is a mental health counselor with a practice address in Columbia, Maryland, and NPI 1912404526, issued on Apr 10, 2018. Check the license (Maryland LGP5575, 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
1912404526
Name
Cassandra Clarke-Williams
Credential
PH.D, LGPC
Primary taxonomy
Mental Health Counselor 101YM0800X
License number
LGP5575 MD
Self-reported in NPPES; status is on the state search
Practice location
5570 Sterrett PL Ste 305, Columbia, MD 21044
Phone
(443) 485-5473
Enumerated
Apr 10, 2018
Record last updated
Apr 10, 2018 (not updated in 8 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20260430004535); may accept Medicare assignment
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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8 nearest mental health counselor records → All 4,201 in Maryland → Look up another NPI →

Also registered at 5570 Sterrett PL Ste 305

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

  1. Max KaplanSpeech-Language Pathologist1467294264
  2. Ashley RobersonMarriage & Family Therapist1457851479
  3. Kem Saunders, MFTMarriage & Family Therapist1043350028
  4. Cynthia Sheffield, LCSWSocial Worker1720550890
  5. Brenda Yuen, LGPCProfessional Counselor1689169393

Verify Cassandra Clarke-Williams 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 LGP5575    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

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Cassandra Clarke-Williams among 4,201 mental health counselor records in Maryland

Cassandra Clarke-Williams, PH.D, 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 2018, is newer than 29% of them.

  • NPI issued2018 · 29% of these records are older, 66% newer
  • In a Medicare fileNo · 7% of these records are
  • In the CMS Doctors and Clinicians fileYes · 11% of these records are
  • Graduated2017 · median 2016 among the 472 with a school on file
  • Record last updated2018 · 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).

172 mental health counselor records list a practice address in Columbia

They are 172 of the 6,690 NPPES records with a practice address in Columbia, 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 Columbia → Mental Health Counselor nationwide →

The 8 mental health counselor records with the nearest ZIP codes

  1. Anna Altieri, LCPCColumbia, MD 210441366849077
  2. Elizabeth Barritt, MS LCPCColumbia, MD 210441720477359
  3. Michael Clancy, LCPC, LCADCColumbia, MD 210441346276292
  4. Holly Housen, M.A., LCPCColumbia, MD 210441952573354
  5. Karen Klein, LCSW-CColumbia, MD 210441336283183
  6. Marcie Lovell, MSW LCSW-CColumbia, MD 210441790187185
  7. Greta Macgill, LCPC, RPTColumbia, MD 210441023443405
  8. John May, PHDColumbia, MD 210441861488322

Common questions

What is Cassandra Clarke-Williams, PH.D, LGPC's NPI number?

Cassandra Clarke-Williams, PH.D, LGPC's National Provider Identifier (NPI) is 1912404526, issued on Apr 10, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Cassandra Clarke-Williams, PH.D, LGPC located?

The NPPES record lists a practice address at 5570 Sterrett PL Ste 305, Columbia, MD, 21044. Phone: (443) 485-5473. Providers update this record themselves, so call before visiting.

How can I verify Cassandra Clarke-Williams, PH.D, LGPC's license?

NPPES lists Maryland license number LGP5575, 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.