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MARK JIMERSON LICSW
NPI 1649317041
Social Worker - Clinical in San Juan, PR

Active since February 01, 2007PECOS EnrolledAccepts Medicare Assignment
954 AVE PONCE DE LEON STE 405C, SAN JUAN, PR 00907(413) 636-5691 Get Directions Write a Review

NPPES record last updated: August 13, 2018. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Aug 13, 2018, Jul 24, 2018 (2 updates tracked since 2018).

About Mark Jimerson Licsw NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARK JIMERSON LICSW (NPI 1649317041) is an individual clinical provider in San Juan, Puerto Rico, licensed in Massachusetts (1030600) and active in the NPI registry since February 2007. He is enrolled in Medicare PECOS and is a graduate of Other (1996).

NPPES Registry Identity

NPI1649317041
Entity TypeIndividualMale
Primary Taxonomy1041C0700X
Provider Legal NameMARK JIMERSONCredential: LICSW
Location Address954 AVE PONCE DE LEON STE 405CSan Juan, PR 00907
Mailing AddressPo Box 79872Carolina, PR 00984-9872 · (413) 636-5691
Phone(413) 636-5691
Sole ProprietorYes
Medical School CMSOtherGraduated 1996
Enumeration DateFebruary 1, 2007
Last NPPES UpdateAugust 13, 20182 updates tracked since enumeration
✔ NPI 1649317041 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License✔ Licensed in MA · 1030600
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.

Other Names 1

Professional Name (2)Mark Jimerson

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Harvard Pilgrim Health Care.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mark Jimerson Licsw is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9931295060
PECOS Enrollment IDI20160822000258
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Mark Jimerson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Crosspoint Clinical Services, Inc
Clinical
117 PARK AVE, SUITE 205
West Springfield, MA 01089
  • Reassigned Medicare billing, Massachusetts enrollment
  • 20 clinicians in this Medicare group
NPI 1740534775 (413) 588-8550

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 00907 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$0.00 typical visit price
range $56.86 – $172.44
Typical copayment $0.00 (range $14.21 – $43.11)
Most-billed visit code NA
Established Patient
$70.88 typical visit price
range $18.24 – $140.44
Typical copayment $17.72 (range $4.56 – $35.11)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mark Jimerson's NPI number?

The NPI number for Mark Jimerson is 1649317041. It was assigned to this individual provider in the NPPES registry on February 1, 2007.

Where is Mark Jimerson located?

Mark Jimerson practices at 954 Ave Ponce De Leon Ste 405C, San Juan, PR 00907. The listed phone number is (413) 636-5691.

What is Mark Jimerson's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

Is Mark Jimerson enrolled in Medicare?

Yes. Mark Jimerson is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Mark Jimerson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mark Jimerson reassigns Medicare benefits to Crosspoint Clinical Services, Inc (West Springfield, MA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mark Jimerson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mark Jimerson accept?

Health plans from Anthem Blue Cross and Blue Shield and Harvard Pilgrim Health Care list Mark Jimerson as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Mark Jimerson was last updated on August 13, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.