David Marshall, LICSW
Clinical Social Worker · Amherst, NH
David Marshall, LICSW is a clinical social worker with a practice address in Amherst, New Hampshire, and NPI 1619208022, issued on Jan 25, 2010. Check the license (New Hampshire 1699, as entered in NPPES) with the New Hampshire board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- David Marshall
- Credential
- LICSW
- Primary taxonomy
- Clinical Social Worker 1041C0700X
- License number
- 1699 NH
Self-reported in NPPES; status is on the state search - Practice location
- 9 Lyndeborough RD, Amherst, NH 03031
- Phone
- (603) 736-7420
- Enumerated
- Jan 25, 2010
- Record last updated
- Mar 22, 2024
- Medicare enrollment
- Enrolled (PECOS I20130129000432); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest clinical social worker records → All 1,592 in New Hampshire → Look up another NPI →
Verify David Marshall in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New Hampshire board licenses this profession
Search for license 1699Check 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
- Derry Medical Center, PADerry, NH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
David Marshall among 1,592 clinical social worker records in New Hampshire
David Marshall, LICSW is one of 1,592 clinical social worker records with a practice address in New Hampshire. 18% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 39% of them.
- NPI issued2010 · 39% of these records are older, 58% newer
- In a Medicare fileYes · 18% of these records are
- In the CMS Doctors and Clinicians fileYes · 27% of these records are
- Graduated2008 · median 2008 among the 426 with a school on file
- Record last updated2024 · 54% 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 New Hampshire practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
12 clinical social worker records list a practice address in Amherst
They are 12 of the 229 NPPES records with a practice address in Amherst, and 1,592 clinical social worker records in New Hampshire.
All 1,592 in New Hampshire → Every provider in Amherst → Clinical Social Worker nationwide →
The 8 clinical social worker records with the nearest ZIP codes
- Deborah DionneAmherst, NH 030311659855815
- Leslie Heins, MSW, LICSWAmherst, NH 030311902054430
- Monica Jagentenfl, MSWAmherst, NH 030311962206714
- Karen Johnson, LICSWAmherst, NH 030311083628762
- Shalini Joshi Flegal, LICSWAmherst, NH 030311063137198
- Kristin Makara, LICSW, MLADCAmherst, NH 030311730699257
- Elizabeth Ngo, LICSWAmherst, NH 030311619325230
- Susan Nykamp, LICSWAmherst, NH 030311881718567
Common questions
What is David Marshall, LICSW's NPI number?
David Marshall, LICSW's National Provider Identifier (NPI) is 1619208022, issued on Jan 25, 2010. An NPI identifies a provider in billing; it is not a license.
Where is David Marshall, LICSW located?
The NPPES record lists a practice address at 9 Lyndeborough RD, Amherst, NH, 03031. Phone: (603) 736-7420. Providers update this record themselves, so call before visiting.
How can I verify David Marshall, LICSW's license?
NPPES lists New Hampshire license number 1699, as entered by the provider. Search the New Hampshire 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.