Merrill Groff, LCSW-C
Clinical Social Worker · Gaithersburg, MD
Merrill Groff, LCSW-C is a clinical social worker with a practice address in Gaithersburg, Maryland, and NPI 1578101358, issued on Dec 12, 2019. Check the license (Maryland 24669, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Merrill Groff
- Credential
- LCSW-C
- Primary taxonomy
- Clinical Social Worker 1041C0700X
- License numbers
- 24669 MD
904019628 VA
Self-reported in NPPES; status is on the state search - Practice location
- 9711 Washingtonian Blvd Ste 550, Gaithersburg, MD 20878
- Phone
- (240) 207-1793
- Enumerated
- Dec 12, 2019
- Record last updated
- Mar 4, 2026
- Medicaid ID
- 104100000X MD
- Medicare enrollment
- Enrolled (PECOS I20240523000066); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest clinical social worker records → All 9,007 in Maryland → Look up another NPI →
Also registered at 9711 Washingtonian Blvd Ste 550
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Fereba AbdulmuhinBehavior Technician1003643420
- Opeyemi AdedapoBehavior Technician1700585957
- Olubukola AdedayoBehavior Technician1770436370
- Morenike AdewetanBehavior Technician1275391021
- Lina AfangbedjiBehavior Technician1023973575
- Bridget AkintayoBehavior Technician1710827928
Verify Merrill Groff in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license 24669Check 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
- Families First Counseling And Psychiatry LLCGreenbelt, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Merrill Groff among 9,007 clinical social worker records in Maryland
Merrill Groff, 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 2019, is newer than 64% of them.
- NPI issued2019 · 64% of these records are older, 30% newer
- In a Medicare fileYes · 11% of these records are
- In the CMS Doctors and Clinicians fileYes · 19% of these records are
- Graduated2018 · median 2006 among the 1,685 with a school on file
- Record last updated2026 · 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).
221 clinical social worker records list a practice address in Gaithersburg
They are 221 of the 2,580 NPPES records with a practice address in Gaithersburg, and 9,007 clinical social worker records in Maryland.
All 9,007 in Maryland → Every provider in Gaithersburg → Clinical Social Worker nationwide →
The 8 clinical social worker records with the nearest ZIP codes
- Gertrud Classen-Miller, LCSW-CNorth Potomac, MD 208781942257142
- Kimberly Forsht, LCSW-CGaithersburg, MD 208781770612145
- Thomas Golden, L.C.S.W.Gaithersburg, MD 208781104940444
- Mia Joelsson, LCSW-CGaithersburg, MD 208781124091046
- Pauliann Long, LCSW-CGaithersburg, MD 208781336206473
- Lauretta Miles, LCSWC LICENSED CERTIGaithersburg, MD 208781518008549
- Terry Ng, MSWGaithersburg, MD 208781396747663
- Shoshana Ringel, P. HD.Gaithersburg, MD 208781295889582
Common questions
What is Merrill Groff, LCSW-C's NPI number?
Merrill Groff, LCSW-C's National Provider Identifier (NPI) is 1578101358, issued on Dec 12, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Merrill Groff, LCSW-C located?
The NPPES record lists a practice address at 9711 Washingtonian Blvd Ste 550, Gaithersburg, MD, 20878. Phone: (240) 207-1793. Providers update this record themselves, so call before visiting.
How can I verify Merrill Groff, LCSW-C's license?
NPPES lists Maryland license number 24669, 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.