Mary Ann Blotzer, LCSW C
Clinical Social Worker · Rockville, MD
Mary Ann Blotzer, LCSW C is a clinical social worker with a practice address in Rockville, Maryland, and NPI 1114062866, issued on Feb 20, 2007. Check the license (Maryland 05557, 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.
- Name
- Mary Ann Blotzer
- Credential
- LCSW C
- Primary taxonomy
- Clinical Social Worker 1041C0700X
- License number
- 05557 MD
Self-reported in NPPES; status is on the state search - Practice location
- 6325 Executive Blvd, Rockville, MD 20852
- Phone
- (240) 374-3263
- Enumerated
- Feb 20, 2007
- Record last updated
- Jul 16, 2023
- Medicare enrollment
- Enrolled (PECOS I20080417000427); 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 6325 Executive Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mary Ann Blotzer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license 05557Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Mary Ann Blotzer among 9,007 clinical social worker records in Maryland
Mary Ann Blotzer, 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 not. Its NPI, issued in 2007, is newer than 12% of them.
- NPI issued2007 · 12% of these records are older, 77% newer
- In a Medicare fileNo · 11% of these records are
- In the CMS Doctors and Clinicians fileYes · 19% of these records are
- Graduated1985 · median 2006 among the 1,685 with a school on file
- Record last updated2023 · 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).
410 clinical social worker records list a practice address in Rockville
They are 410 of the 14,353 NPPES records with a practice address in Rockville, 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 Rockville → Clinical Social Worker nationwide →
The 8 clinical social worker records with the nearest ZIP codes
- Kathleen Bogado, LCSW-CRockville, MD 208521659403053
- John Dunn, LCSW-CRockville, MD 208521316093107
- Lara Gregorio, LCSW, LGSWRockville, MD 208521811069826
- Helen McDowell, LCSWRockville, MD 208521104904705
- Cecilia McKay, MSWRockville, MD 208521316923477
- Joanne Milobsky, LCSW-CRockville, MD 208521467446179
- Britt Rathbone, MSSWRockville, MD 208521063418770
- Melinda Schenk, M.S.W.Rockville, MD 208521972668341
Common questions
What is Mary Ann Blotzer, LCSW C's NPI number?
Mary Ann Blotzer, LCSW C's National Provider Identifier (NPI) is 1114062866, issued on Feb 20, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Mary Ann Blotzer, LCSW C located?
The NPPES record lists a practice address at 6325 Executive Blvd, Rockville, MD, 20852. Phone: (240) 374-3263. Providers update this record themselves, so call before visiting.
How can I verify Mary Ann Blotzer, LCSW C's license?
NPPES lists Maryland license number 05557, 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.