Mark Sullivan
Clinical Social Worker · Silver Spring, MD
Mark Sullivan is a clinical social worker with a practice address in Silver Spring, Maryland, and NPI 1346614641, issued on Nov 24, 2015. Check the license with the Maryland board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Mark Sullivan
- Primary taxonomy
- Clinical Social Worker 1041C0700X
- License number
- LC50079401 DC
Self-reported in NPPES; status is on the state search - Practice location
- 8703 Milford Ave, Silver Spring, MD 20910
- Phone
- (202) 264-0070
- Enumerated
- Nov 24, 2015
- Record last updated
- Mar 7, 2024
- Medicare enrollment
- Enrolled (PECOS I20180912000350); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest clinical social worker records → All 9,007 in Maryland → Look up another NPI →
Verify Mark Sullivan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Mark Sullivan among 9,007 clinical social worker records in Maryland
Mark Sullivan 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 not. Its NPI, issued in 2015, is newer than 47% of them.
- NPI issued2015 · 47% of these records are older, 49% newer
- In a Medicare fileNo · 11% of these records are
- In the CMS Doctors and Clinicians fileYes · 19% of these records are
- Graduated2009 · 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).
412 clinical social worker records list a practice address in Silver Spring
They are 412 of the 6,531 NPPES records with a practice address in Silver Spring, and 9,007 clinical social worker records in Maryland. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 9,007 in Maryland → Every provider in Silver Spring → Clinical Social Worker nationwide →
The 8 clinical social worker records with the nearest ZIP codes
- David Blakemore, LCSW-CSilver Spring, MD 209101851313951
- Michole Bledzki, LCSW-CSilver Spring, MD 209101033151055
- Todd Cesar, LMSW-CLINICALSilver Spring, MD 209101821087818
- Marie ChoppinSilver Spring, MD 209101326083353
- Kelly Cregan, LCSW-CSilver Spring, MD 209101801993498
- Leslie Hilleary, LCSW-CSilver Spring, MD 209101124101837
- Pamela Holden, LCSW-CSilver Spring, MD 209101427096015
- Joel Kanter, M.S.W.Silver Spring, MD 209101144317967
Common questions
What is Mark Sullivan's NPI number?
Mark Sullivan's National Provider Identifier (NPI) is 1346614641, issued on Nov 24, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Mark Sullivan located?
The NPPES record lists a practice address at 8703 Milford Ave, Silver Spring, MD, 20910. Phone: (202) 264-0070. Providers update this record themselves, so call before visiting.
How can I verify Mark Sullivan's license?
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.