NPPES file of Aug 9, 2026

Stephen Day Ellis, MSW,PHD.

Clinical Social Worker · Philadelphia, PA

Stephen Day Ellis, MSW,PHD. is a clinical social worker with a practice address in Philadelphia, Pennsylvania, and NPI 1205993011, issued on Jan 2, 2007. Check the license (Pennsylvania CW000931L, as entered in NPPES) with the Pennsylvania 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
1205993011
Name
Stephen Day Ellis
Credential
MSW,PHD.
Primary taxonomy
Clinical Social Worker 1041C0700X
License number
CW000931L PA
Self-reported in NPPES; status is on the state search
Practice location
313 S 16TH St, Philadelphia, PA 19102
Phone
(215) 893-0646
Enumerated
Jan 2, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(215) 732-8454
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest clinical social worker records → All 7,830 in Pennsylvania → Look up another NPI →

Also registered at 313 S 16TH St

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

  1. Brian Arcarese, LCSWClinical Social Worker1063677060
  2. Khary Atif, MSS MLSP LCSW ACSWClinical Social Worker1013225937
  3. Nicole Cohen, LSWSocial Worker1164072229
  4. Nicole DalySocial Worker1780567396
  5. Roberta Dilworth, MA, MSN, PACSP, LPCProfessional Counselor1285928531
  6. Miriam Fife, ED.D, MSS, LSWSocial Worker1922725522

Verify Stephen Day Ellis in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Pennsylvania board licenses this profession
    Search for license CW000931L    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 Pennsylvania license search

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Stephen Day Ellis among 7,830 clinical social worker records in Pennsylvania

Stephen Day Ellis, MSW,PHD. is one of 7,830 clinical social worker records with a practice address in Pennsylvania. 16% 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 17% of them.

  • NPI issued2007 · 17% of these records are older, 73% newer
  • In a Medicare fileNo · 16% of these records are
  • In the CMS Doctors and Clinicians fileNo · 24% of these records are
  • Record last updated2007 · 53% 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 Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

1,427 clinical social worker records list a practice address in Philadelphia

They are 1,427 of the 42,849 NPPES records with a practice address in Philadelphia, and 7,830 clinical social worker records in Pennsylvania. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 7,830 in Pennsylvania → Every provider in Philadelphia → Clinical Social Worker nationwide →

The 8 clinical social worker records with the nearest ZIP codes

  1. Randy Baird, LCSW, BCDPhiladelphia, PA 191021710005012
  2. Tivona Biegen, LCSWPhiladelphia, PA 191021760502538
  3. Neil Bonavita, LCSWPhiladelphia, PA 191021063569291
  4. Joseph Calarco, LSWPhiladelphia, PA 191021982775177
  5. Cynthia Closs, DSW, LCSWPhiladelphia, PA 191021316018666
  6. Gail Davidoff, LCSWPhiladelphia, PA 191021881688281
  7. Jodi Ippolito, L.C.S.W.Philadelphia, PA 191021205990231
  8. Barri Iskin, LCSWPhiladelphia, PA 191021780714261

Common questions

What is Stephen Day Ellis, MSW,PHD.'s NPI number?

Stephen Day Ellis, MSW,PHD.'s National Provider Identifier (NPI) is 1205993011, issued on Jan 2, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Stephen Day Ellis, MSW,PHD. located?

The NPPES record lists a practice address at 313 S 16TH St, Philadelphia, PA, 19102. Phone: (215) 893-0646. Providers update this record themselves, so call before visiting.

How can I verify Stephen Day Ellis, MSW,PHD.'s license?

NPPES lists Pennsylvania license number CW000931L, as entered by the provider. Search the Pennsylvania 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.