Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

THERESA MARIE HARMON LICSW, PMHNP-BC
NPI 1386855583
Nurse Practitioner - Psychiatric/Mental Health in Plymouth, MA

Q: What is Theresa Harmon's NPI number?

The NPI number for Theresa Harmon is 1386855583. It was assigned to this individual provider in the NPPES registry on May 28, 2007.

Q: What is Theresa Harmon's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Q: When was this NPI record last updated?

The NPPES record for Theresa Harmon was last updated on October 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 days 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.

Active since May 28, 2007PECOS Enrolled

6 MAIN STREET EXT STE 615, PLYMOUTH, MA 02360(941) 391-0746 Get Directions Write a Review

NPPES record last updated: October 8, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Oct 8, 2026, Nov 19, 2025 (2 updates tracked since 2025).

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About Theresa Marie Harmon Licsw, Pmhnp-bc NPPES

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

THERESA MARIE HARMON LICSW, PMHNP-BC (NPI 1386855583) is an individual psychiatric/mental health provider in Plymouth, Massachusetts, licensed in Massachusetts (APRN10005249) and active in the NPI registry since May 2007. She is enrolled in Medicare PECOS and maintains a secondary practice location in Falmouth.

NPPES Registry Identity

NPI1386855583

Entity TypeIndividualFemale

Primary Taxonomy363LP0808X

Provider Legal NameTHERESA MARIE HARMONCredential: LICSW, PMHNP-BC

Location Address6 MAIN STREET EXT STE 615Plymouth, MA 02360-3366

Mailing Address129 Russell Mills RdPlymouth, MA 02360-3018 · (941) 391-0746

Phone(941) 391-0746

Sole ProprietorYes

Enumeration DateMay 28, 2007

Last NPPES UpdateOctober 8, 20262 updates tracked since enumeration

NPPES CertifiedOctober 8, 2026

✔ NPI 1386855583 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LP0808X

License✔ Licensed in MA · APRN10005249

Also ListedSocial Worker · ClinicalTaxonomy 1041C0700X · License 116116 (MA)

6 MAIN STREET EXT STE 615, Plymouth, MA 02360

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Secondary Practice Location 1

Location 112 Bramble Bush DrFalmouth, MA 02540-2325 · Phone (508) 540-1801

Other Identifiers 1

Medicaid768265400FL

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, Taro Health.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Theresa Marie Harmon Licsw, Pmhnp-bc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02360 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

$90.70 typical visit price

range $58.86 – $177.36

Typical copayment $22.67 (range $14.71 – $44.34)

Most-billed visit code 99203

Established Patient

$103.48 typical visit price

range $19.11 – $144.84

Typical copayment $25.87 (range $4.77 – $36.21)

Most-billed visit code 99214

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 Theresa Harmon's NPI number?

The NPI number for Theresa Harmon is 1386855583. It was assigned to this individual provider in the NPPES registry on May 28, 2007.

Where is Theresa Harmon located?

Theresa Harmon practices at 6 Main Street Ext Ste 615, Plymouth, MA 02360. The listed phone number is (941) 391-0746.

What is Theresa Harmon's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Is Theresa Harmon enrolled in Medicare?

Yes. Theresa Harmon is registered in the Medicare PECOS enrollment system.

What insurance does Theresa Harmon accept?

Health plans from Anthem Blue Cross and Blue Shield, Harvard Pilgrim Health Care and Taro Health list Theresa Harmon 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 Theresa Harmon was last updated on October 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 days 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.