2026 NPPES data Clinical Social Worker NPI 1679715619 MSW, LGSW
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DENNIS ADDISON, MSW, LGSW

Clinical Social Worker in RANDALLSTOWN, Maryland. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
What the federal data reveals: DENNIS ADDISON, MSW, LGSW is a Clinical Social Worker ([object Object]) practicing in RANDALLSTOWN, Maryland .

What stands out: DENNIS ADDISON, MSW, LGSW specializes in Clinical Social Worker and practices in RANDALLSTOWN, Maryland, listed in the federal CMS National Provider Identifier registry. Every detail on this page comes straight from federal CMS records, with no proprietary rating applied.

DENNIS ADDISON, MSW, LGSW at a glance

Quality data not reported

NPI registry status

Active

Issued 04/06/2009

NPI 1679715619

Primary specialty

Clinical Social Worker

High-volume

272,898 US NPIs in this specialty

Specialty distribution in Maryland

How Clinical Social Worker compares to other specialties among Maryland providers

Maryland providers

Clinical Social Worker share within Maryland

1. Clinical Social Worker42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Clinical Social Worker share within Maryland

Specialty board-certification context

Estimated specialty board-certified rate — Clinical Social Worker (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Clinical Social Worker ABMS/AOA estimate

Est. board-certified rate (Clinical Social Worker) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Clinical Social Worker) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

DENNIS ADDISON, MSW, LGSW is a Clinical Social Worker provider practicing in RANDALLSTOWN, Maryland, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MSW, LGSW. NPI: 1679715619. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

DENNIS ADDISON, MSW, LGSW appears in the CMS NPPES registry as a Clinical Social Worker provider holding MSW, LGSW credentials at 5310 OLD COURT RD, RANDALLSTOWN, MD, 21133, with a listed phone of (410) 496-2410. NPI 1679715619 was issued on 04/06/2009. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ADDISON most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D prescribing data is not currently published for this NPI, which typically means the provider either wrote fewer than 11 Part D claims in the most recent reporting year, does not participate in Medicare, or practices in a specialty that rarely prescribes outpatient drugs. Absence of prescribing data is not a quality signal — many Clinical Social Worker providers operate outside Part D entirely.

Clinical Social Worker is a high-volume specialty nationwide, with 272,898 enrolled providers across 56 states and an average of 716 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

5310 OLD COURT RD
RANDALLSTOWN, MD 21133

Provider Details

NPI 1679715619
Specialty Clinical Social Worker
Credentials MSW, LGSW
Gender Male
NPI Issued 04/06/2009

Clinical Social Worker Overview

How DENNIS ADDISON, MSW, LGSW fits within the Clinical Social Worker landscape nationally.

272,898
Clinical Social Worker Providers in US
56
States with Clinical Social Worker
716
Avg Claims per Provider

Nearby Clinical Social Worker Providers in Maryland

Other clinicians with the same primary specialty enrolled in Maryland, drawn from the same CMS NPPES roster as ADDISON.

Compare Clinical Social Worker nationally: see state-by-state distribution →

Frequently Asked Questions

What is DENNIS ADDISON, MSW, LGSW's specialty?
DENNIS ADDISON, MSW, LGSW specializes in Clinical Social Worker and practices in RANDALLSTOWN, Maryland. Credentials: MSW, LGSW.
Where is DENNIS ADDISON, MSW, LGSW located?
DENNIS ADDISON, MSW, LGSW is located at 5310 OLD COURT RD, RANDALLSTOWN, MD, 21133. Phone: (410) 496-2410.
What is DENNIS ADDISON, MSW, LGSW's NPI number?
DENNIS ADDISON, MSW, LGSW's National Provider Identifier (NPI) is 1679715619, issued on 04/06/2009.
How many Clinical Social Worker providers are there in the US?
There are 272,898 Clinical Social Worker providers across 56 states in the US. The average Clinical Social Worker provider writes 716 Medicare Part D claims per year.
Does DENNIS ADDISON, MSW, LGSW accept Medicare?
DENNIS ADDISON, MSW, LGSW appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify DENNIS ADDISON, MSW, LGSW's credentials?
DENNIS ADDISON, MSW, LGSW's NPI is 1679715619 with credentials MSW, LGSW. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology