NPPES file of Aug 9, 2026

Mark Merryman, LSW

Social Worker · Pottstown, PA

Mark Merryman, LSW is a social worker with a practice address in Pottstown, Pennsylvania, and NPI 1932341468, issued on Mar 30, 2009. Check the license (Pennsylvania SW126916, as entered in NPPES) with the Pennsylvania board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1932341468
Name
Mark Merryman
Credential
LSW
Primary taxonomy
Social Worker 104100000X
License number
SW126916 PA
Self-reported in NPPES; status is on the state search
Practice location
11 Robinson St, Pottstown, PA 19464
Phone
(610) 326-9250
Enumerated
Mar 30, 2009
Record last updated
Mar 30, 2009 (not updated in 17 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20110906000605); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 11 Robinson St

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

  1. Lane AdamsMental Health Counselor1104498377
  2. Natasha AdamsMental Health Counselor1619513835
  3. Elsayed AhmedMental Health Counselor1205519709
  4. Samuel AholaStudent in an Organized Health Care Education/Training Program1174357719
  5. Autumn AlbertMental Health Counselor1568226272
  6. Darlyne AlexandreMental Health Counselor1740759828

Verify Mark Merryman 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 SW126916
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Blue Creek Psychotherapy LLCPottstown, PA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Mark Merryman among 5,063 social worker records in Pennsylvania

Mark Merryman, LSW is one of 5,063 social worker records with a practice address in Pennsylvania. 3% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 14% of them.

  • NPI issued2009 · 14% of these records are older, 82% newer
  • In a Medicare fileYes · 3% of these records are
  • In the CMS Doctors and Clinicians fileYes · 6% of these records are
  • Graduated2008 · median 2013 among the 299 with a school on file
  • Record last updated2009 · 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 104100000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

33 social worker records list a practice address in Pottstown

They are 33 of the 2,064 NPPES records with a practice address in Pottstown, and 5,063 social worker records in Pennsylvania.

The 8 social worker records with the nearest ZIP codes

  1. Lisa Butrymowicz, LSWPottstown, PA 194641790963601
  2. Stacy Caldwell, MSW, LSWPottstown, PA 194641578717666
  3. Michael Daley, MSWPottstown, PA 194641427236421
  4. Gregory GoodyearPottstown, PA 194641164840336
  5. Amy Hartley, LSWPottstown, PA 194641366671513
  6. Tim MolitorPottstown, PA 194641457779670
  7. Mary Onama, MSWPottstown, PA 194641306095302
  8. David ParellaPottstown, PA 194641629496856

Common questions

What is Mark Merryman, LSW's NPI number?

Mark Merryman, LSW's National Provider Identifier (NPI) is 1932341468, issued on Mar 30, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Mark Merryman, LSW located?

The NPPES record lists a practice address at 11 Robinson St, Pottstown, PA, 19464. Phone: (610) 326-9250. Providers update this record themselves, so call before visiting.

How can I verify Mark Merryman, LSW's license?

NPPES lists Pennsylvania license number SW126916, 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. Medicare files from data.cms.gov. 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.