Diane Blackmon, LCSW-C
Social Worker · Oakland, MD
Diane Blackmon, LCSW-C is a social worker with a practice address in Oakland, Maryland, and NPI 1053933796, issued on May 16, 2020. Check the license (Maryland 26801, 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
- Diane Blackmon
- Credential
- LCSW-C
- Primary taxonomy
- Social Worker 104100000X
- License number
- 26801 MD
Self-reported in NPPES; status is on the state search - Practice location
- 5000 Thayer Ctr Ste C, Oakland, MD 21550
- Phone
- (301) 276-4116
- Enumerated
- May 16, 2020
- Entity
- Type 1 · individual
Also registered at 5000 Thayer Ctr Ste C
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Marianella CastroProfessional Counselor1831886274
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Verify Diane Blackmon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license 26801Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
15 social worker records list a Oakland practice address
They are 15 of the 304 NPPES records with a Oakland practice address, and 4,221 social worker records in Maryland. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 15 in Oakland → All 4,221 in Maryland → Every provider in Oakland →
Other social worker records in Maryland
- Sarah Abbott, LMSWFrederick, MD1063111540
- Katie AbdallaEaston, MD1891298063
- Shahla Abdi, LMSWGaithersburg, MD1093399503
- Athaan Abdul-Kaudeyr, LMSWEllicott City, MD1265310122
- Alexandra AbellAbingdon, MD1487124525
- Noelle AbrahamsRosedale, MD1487525382
- Devorah Abrams, LMSWBaltimore, MD1558820571
- Kristin Abrams, LMSWTowson, MD1245080126
- Janice Abt, LCSW-CSilver Spring, MD1407864135
- Jennifer Ackerman Helfand, LCSW-CBethesda, MD1912658659
Common questions
What is Diane Blackmon, LCSW-C's NPI number?
Diane Blackmon, LCSW-C's National Provider Identifier (NPI) is 1053933796, issued on May 16, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Diane Blackmon, LCSW-C located?
The NPPES record lists a practice address at 5000 Thayer Ctr Ste C, Oakland, MD, 21550. Phone: (301) 276-4116. Providers update this record themselves, so call before visiting.
How can I verify Diane Blackmon, LCSW-C's license?
NPPES lists Maryland license number 26801, 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), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.