MARK JACOB LONGSJO (LICSW) – Clinical Social Worker, NPI 1013949809

MARK JACOB LONGSJO (LICSW) is a healthcare provider. based in Brockton, Massachusetts. specializing in Clinical Social Worker. They hold the professional credentials LICSW. They hold a License No. 1026908 (MA). The NPI Number for MARK JACOB LONGSJO (LICSW) is 1013949809

Main info

Male
Sole Proprietor
32 Years Of Experience
Accepts Medicare Assignment
Name
MARK JACOB LONGSJO (LICSW)
NPI
1013949809
Phone
(508) 894-8320
Address
MCLEAN HOSPITAL SOUTHEAST LOCATION
Enumeration Date
6 July 2006
Last Update Date
8 July 2007

Doctor Profile

Medical School Name
OTHER
Secondary Phone
5087462000
Graduation Year
1994 (32 years ago)
PAC ID
2163572454
Group Practice PAC ID
8224947536
Professional Enrollment ID
I20090608000462
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience52
Completeness75
Years active:19State licenses:1Digital endpointsOther names

Provider Addresses for MARK JACOB LONGSJO (LICSW)

  • MCLEAN HOSPITAL SOUTHEAST LOCATION

    940 BELMONT STREET

    BROCKTON, MA 02301

    Phone: (508) 894-8320

    Fax: (508) 894-8334

    Type: Location

  • McLean Hospital, 115, Mill Street, Kendall Gardens, Belmont, Middlesex County, Massachusetts, 02478, United States

    BELMONT, MA 024781041

    Phone: (508) 894-8320

    Fax: (508) 894-8334

    Type: Mailing

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

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Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

No Medicare enrollment or revalidation data available for this provider in our database.

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
90791Psychiatric diagnostic evaluation1212$0
View full utilization report →

Insurance plans in this area (ZIP 02301)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 8224947536View full group profile
NameSpecialtyState
PHYLLIS COGSWELL (LICSW)
-MA
TANYA LEE GUILLETTE
-MA
KATHERINE I LINSCOTT (LICSW)
-MA
Unknown Individual
-MA
MS. HEIDI EPSTEIN (LICSW)
-MA
MS. LAURA RUTH CARSON (LICSW)
Clinical Social WorkerMA
MS. DOROTHY D STENEHJEM
-MA
CHRISTOPHER T PIKE (LICSW)
-MA
ELIZABETH ROLLINS (MSW)
-MA

Reviews

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Frequently asked questions

What is the standard ID for MARK JACOB LONGSJO (LICSW) in the U.S.?
In the U.S., MARK JACOB LONGSJO (LICSW) is identified by NPI 1013949809.
Is MARK JACOB LONGSJO (LICSW) currently accepting referrals based on NPI status?
Registry metadata lists MARK JACOB LONGSJO (LICSW) as active.
How should patients interpret MARK JACOB LONGSJO (LICSW)'s specialty?
The extract shows Clinical Social Worker for MARK JACOB LONGSJO (LICSW). Clinical services aligned with this taxonomy classification.
What city is tied to MARK JACOB LONGSJO (LICSW)?
The directory associates MARK JACOB LONGSJO (LICSW) with Brockton, Massachusetts. Check all listed addresses for suites or satellite offices.
Can I export MARK JACOB LONGSJO (LICSW)'s record?
You can download the official NPPES record; we summarize key fields for readability.

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