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

MARY LOUISE KERWIN DO
NPI 1003490814
Psychiatry & Neurology - Psychiatry in Jupiter, FL

Active since May 07, 2021PECOS EnrolledAccepts Medicare Assignment
110 FRONT ST, JUPITER, FL 33477(561) 606-9778(561) 934-7389 Get Directions Write a Review

NPPES record last updated: October 16, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Oct 16, 2026, Jan 29, 2026, Aug 2, 2024 and 2 more (5 updates tracked since 2021).

About Mary Louise Kerwin Do NPPES

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

MARY LOUISE KERWIN DO (NPI 1003490814) is an individual psychiatry provider in Jupiter, Florida, licensed in Florida (OS20674) and active in the NPI registry since May 2021. She is enrolled in Medicare PECOS, maintains a secondary practice location in Fresno, and is a graduate of Other (2020).

NPPES Registry Identity

NPI1003490814
Entity TypeIndividualFemale
Primary Taxonomy2084P0800X
Provider Legal NameMARY LOUISE KERWINCredential: DO
Location Address110 FRONT STJupiter, FL 33477-5095
Mailing Address110 Front St, Suite 300, Internal Suite 360Jupiter, FL 33477-5095 · (561) 606-9778 · Fax (561) 934-7389
Phone(561) 606-9778
Fax(561) 934-7389
Sole ProprietorNo
Medical School CMSOtherGraduated 2020
Enumeration DateMay 7, 2021
Last NPPES UpdateOctober 16, 20265 updates tracked since enumeration
NPPES CertifiedOctober 16, 2026
✔ NPI 1003490814 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
Licenses✔ Licensed in FL · OS20674✔ Licensed in CA · 20A24799
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
110 FRONT ST, Jupiter, FL 33477
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Secondary Practice Location 1

Location 18050 N Palm Ave Ste 300Fresno, CA 93711-5510 · Phone (561) 606-9778 · Fax (561) 934-7389

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include AmeriHealth Caritas Next, Cigna Healthcare, Cigna HealthCare of Florida, Inc. and more.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

Mary Louise Kerwin Do 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 ID4385183896
PECOS Enrollment IDI20240828003712, I20260114001528
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 Reassignments

6

Medicare enrollment records show Mary Kerwin reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Grow Healthcare Group PA
80 mi
Mental Health
66 W FLAGLER ST STE 900
Miami, FL 33130
  • Reassigned Medicare billing, Florida enrollment
  • 3,079 clinicians in this Medicare group
NPI 1245845932 (786) 244-7711
La Sagrada Familia Medical Center Inc
81 mi
Mental Health (Including Community Mental Health Center)
7270 NW 12TH ST STE 430
Miami, FL 33126
  • Reassigned Medicare billing, Florida enrollment
  • 3 clinicians in this Medicare group
NPI 1508468869 (786) 615-2843
Garcia Rehab Professional Center ,inc
87 mi
Community/Behavioral Health
5600 SW 135TH AVE STE 100
Miami, FL 33183
  • Reassigned Medicare billing, Florida enrollment
  • 2 clinicians in this Medicare group
NPI 1700638624 (305) 542-3786
Motivating Lives Mental Health Services LLC
87 mi
Community/Behavioral Health
10300 SW 72ND ST STE 414
Miami, FL 33173
  • Reassigned Medicare billing, Florida enrollment
  • 5 clinicians in this Medicare group
NPI 1750137071 (786) 203-5379
Sondermind Provider Network LLC
1,682 mi
Clinical
1738 WYNKOOP ST STE 303
Denver, CO 80202
  • Reassigned Medicare billing, Florida enrollment
  • 238 clinicians in this Medicare group
NPI 1760854442 (844) 843-7279
Grow Healthcare Group PC
2,532 mi
Mental Health
99 S ALMADEN BLVD STE 600
San Jose, CA 95113
  • Reassigned Medicare billing, California enrollment
  • 3,139 clinicians in this Medicare group
NPI 1154994846 (408) 402-4385

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 33477 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
$179.05 typical visit price
range $58.56 – $179.05
Typical copayment $44.76 (range $14.64 – $44.76)
Most-billed visit code 99205
Established Patient
$73.00 typical visit price
range $18.44 – $144.68
Typical copayment $18.25 (range $4.61 – $36.17)
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.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. JOSE G BARREAU M.D.
Internal Medicine (Hematology & Oncology)
110 FRONT ST
JUPITER, FL 33477
Palm Beach County (561) 839-9653

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 Mary Kerwin's NPI number?

The NPI number for Mary Kerwin is 1003490814. It was assigned to this individual provider in the NPPES registry on May 7, 2021.

Where is Mary Kerwin located?

Mary Kerwin practices at 110 Front St, Jupiter, FL 33477. The listed phone number is (561) 606-9778.

What is Mary Kerwin's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Mary Kerwin enrolled in Medicare?

Yes. Mary Kerwin 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 organizations bill Medicare for Mary Kerwin's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mary Kerwin reassigns Medicare benefits to 6 organizations: Grow Healthcare Group PA (Miami, FL), La Sagrada Familia Medical Center Inc (Miami, FL), Garcia Rehab Professional Center ,inc (Miami, FL), Motivating Lives Mental Health Services LLC (Miami, FL), Sondermind Provider Network LLC (Denver, CO) and 1 more organization, listed in the Medicare section above. Each 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 Mary Kerwin's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mary Kerwin accept?

Health plans from AmeriHealth Caritas Next, Cigna HealthCare of Florida, Inc., Cigna Healthcare, Florida Blue (BlueCross BlueShield FL) and Florida Blue HMO (a BlueCross BlueShield FL company) and 3 other insurers list Mary Kerwin 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 Mary Kerwin was last updated on October 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 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.