NPPES file of Aug 9, 2026

Walter Seaburn Knauff, LGSW

Social Worker · Silver Spring, MD

Walter Seaburn Knauff, LGSW is a social worker with a practice address in Silver Spring, Maryland, and NPI 1205070141, issued on Apr 22, 2009. Check the license (Maryland 14521, 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
1205070141
Name
Walter Seaburn Knauff
Credential
LGSW
Primary taxonomy
Social Worker 104100000X
License number
14521 MD
Self-reported in NPPES; status is on the state search
Practice location
8811 Colesville RD, Silver Spring, MD 20910
Phone
(301) 742-5430
Enumerated
Apr 22, 2009
Record last updated
Mar 2, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(301) 585-7392
Medicare enrollment
Enrolled (PECOS I20200513003081); accepts 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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Also registered at 8811 Colesville RD

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

  1. Kelli Cronin, LCSW-CClinical Social Worker1932641024
  2. Donna Firer, LCSW-CClinical Social Worker1710028014
  3. Anne Geronimo, LCMFTMarriage & Family Therapist1699981258
  4. Selamawit Hailu, PHARM.D.Pharmacist1053510875
  5. Carol Heil, LCSW-CClinical Social Worker1316069784
  6. Gian Carlo LazaroOccupational Therapist1114388444

Verify Walter Seaburn Knauff 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 14521
    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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Walter Seaburn Knauff among 4,073 social worker records in Maryland

Walter Seaburn Knauff, LGSW is one of 4,073 social worker records with a practice address in Maryland. 6% 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 2009, is newer than 8% of them.

  • NPI issued2009 · 8% of these records are older, 91% newer
  • In a Medicare fileNo · 6% of these records are
  • In the CMS Doctors and Clinicians fileYes · 9% of these records are
  • Graduated2008 · median 2017 among the 379 with a school on file
  • Record last updated2020 · 42% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 104100000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

117 social worker records list a practice address in Silver Spring

They are 117 of the 6,531 NPPES records with a practice address in Silver Spring, and 4,073 social worker records in Maryland. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 social worker records with the nearest ZIP codes

  1. Janice Abt, LCSW-CSilver Spring, MD 209101407864135
  2. Mojisola AgbebiSilver Spring, MD 209101134787328
  3. Leslie Flores-Membreno, LMSWSilver Spring, MD 209101932663069
  4. Caroline Guhde, LGSWSilver Spring, MD 209101255643888
  5. Gabrielle Hiller, LCSW-CSilver Spring, MD 209101730526690
  6. Susan Johnson, MSWSilver Spring, MD 209101063704336
  7. Kheri JoyceSilver Spring, MD 209101184107757
  8. Zulma Medrano-LopezSilver Spring, MD 209101407216724

Common questions

What is Walter Seaburn Knauff, LGSW's NPI number?

Walter Seaburn Knauff, LGSW's National Provider Identifier (NPI) is 1205070141, issued on Apr 22, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Walter Seaburn Knauff, LGSW located?

The NPPES record lists a practice address at 8811 Colesville RD, Silver Spring, MD, 20910. Phone: (301) 742-5430. Providers update this record themselves, so call before visiting.

How can I verify Walter Seaburn Knauff, LGSW's license?

NPPES lists Maryland license number 14521, 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.