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

DR. MARIA LISA O'BRIEN M.D.
NPI 1366429011
Family Medicine in Melbourne, FL

Q: What is Maria O'brien's NPI number?

The NPI number for Maria O'brien is 1366429011. It was assigned to this individual provider in the NPPES registry on December 23, 2005. The provider is also known as Dr. Maria Lisa Delima M.D..

Q: What is Maria O'brien's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Q: When was this NPI record last updated?

The NPPES record for Maria O'brien was last updated on October 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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 December 23, 2005PECOS Enrolled

80.17/100

CMS Quality Rating

3800 W EAU GALLIE BLVD STE 105, MELBOURNE, FL 32934(321) 323-3618(833) 468-2730 Get Directions Write a Review

NPPES record last updated: October 22, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jan 24, 2017, Jun 16, 2016 (2 updates tracked since 2016).

On this page

About Dr. Maria Lisa O'brien M.d. NPPES

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

DR. MARIA LISA O'BRIEN M.D. (NPI 1366429011) is an individual family medicine provider in Melbourne, Florida, licensed in Florida (MD0164343) and active in the NPI registry since December 2005. She is enrolled in Medicare PECOS and is a graduate of Creighton University School Of Medicine (2002).

NPPES Registry Identity

NPI1366429011

Entity TypeIndividualFemale

Primary Taxonomy207Q00000X

Provider Legal NameDR. MARIA LISA O'BRIENCredential: M.D.

Location Address3800 W EAU GALLIE BLVD STE 105Melbourne, FL 32934-3285

Mailing Address3800 W Eau Gallie Blvd Ste 105Melbourne, FL 32934-3285 · (321) 323-3618 · Fax (833) 468-2730

Phone(321) 323-3618

Fax(833) 468-2730

Sole ProprietorNo

Medical School CMSCreighton University School Of MedicineGraduated 2002

Enumeration DateDecember 23, 2005

Last NPPES UpdateOctober 22, 20262 updates tracked since enumeration

NPPES CertifiedOctober 22, 2026

✔ NPI 1366429011 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207Q00000X

Licenses✔ Licensed in FL · MD0164343✔ Licensed in MD · D82534✔ Licensed in AL · 25649✔ Licensed in CA · C53909

Definition

Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

3800 W EAU GALLIE BLVD STE 105, Melbourne, FL 32934

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Other Names 1

Former Name (1)Dr. Maria Lisa Delima M.d.

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Florida Blue (BlueCross BlueShield FL), Florida Blue HMO (a BlueCross BlueShield FL company), UnitedHealthcare.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Maria Lisa O'brien M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID8022200773

PECOS Enrollment IDI20260520001763

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

Medicare enrollment records show Maria O'brien reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Healthy Minors LLC

Same address

Family Medicine

3800 W EAU GALLIE BLVD STE 105
Melbourne, FL 32934

Reassigned Medicare billing, Florida enrollment
16 clinicians in this Medicare group

NPI 1144766635 (904) 750-3385

Dover Shores Family Practice

48 mi

Family Medicine

4711 CURRY FORD RD STE B
Orlando, FL 32812

Reassigned Medicare billing, Florida enrollment
32 clinicians in this Medicare group

NPI 1417683707 (407) 275-9014

Medstar Medical Group II LLC

772 mi

Internal Medicine

1145 19TH ST NW, SUITE 311
Washington, DC 20036

Reassigned Medicare billing, Maryland enrollment
2,602 clinicians in this Medicare group

NPI 1376887844 (202) 429-2401

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 32934 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

$87.62 typical visit price

range $56.00 – $171.84

Typical copayment $21.90 (range $14.00 – $42.96)

Most-billed visit code 99203

Established Patient

$99.16 typical visit price

range $17.57 – $139.16

Typical copayment $24.79 (range $4.39 – $34.79)

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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

80.17/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

76.69

Promoting Interoperability

100

Improvement Activities

Cost

53.49

Referred Medical Equipment & Supplies CMS DME claims 14

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253

DME-Other DME · category DE017N

10 suppliers40 claims110 services$5.96 avg. paid by Medicare

Lancets, per box of 100 A4259

DME-Medical/Surgical Supplies · category DA000N

4 suppliers12 claims18 services$1.13 avg. paid by Medicare

Intermittent urinary catheter, with insertion supplies A4353

DME-Orthotic Devices · category DF008N

1 supplier12 claims2,400 services$6.73 avg. paid by Medicare

Tubing used with positive airway pressure device A7037

DME-Other DME · category DE001N

3 suppliers11 claims11 services$14.09 avg. paid by Medicare

Filter, disposable, used with positive airway pressure device A7038

DME-Other DME · category DE001N

4 suppliers16 claims77 services$2.10 avg. paid by Medicare

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431

DME-Oxygen and Supplies · category DC000N

1 supplier12 claims12 services$14.28 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 2

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

AMIE LYNN ABBY

Nurse Practitioner (Family)

3800 W EAU GALLIE BLVD STE 105
MELBOURNE, FL 32934

Brevard County (321) 449-7040

HEALTHY MINORS LLC

Family Medicine

3800 W EAU GALLIE BLVD STE 105
MELBOURNE, FL 32934

Brevard County (904) 750-3385

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 Maria O'brien's NPI number?

The NPI number for Maria O'brien is 1366429011. It was assigned to this individual provider in the NPPES registry on December 23, 2005. The provider is also known as Dr. Maria Lisa Delima M.D..

Where is Maria O'brien located?

Maria O'brien practices at 3800 W Eau Gallie Blvd Ste 105, Melbourne, FL 32934. The listed phone number is (321) 323-3618.

What is Maria O'brien's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Maria O'brien enrolled in Medicare?

Yes. Maria O'brien is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Maria O'brien's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Maria O'brien reassigns Medicare benefits to 3 organizations: Healthy Minors LLC (Melbourne, FL), Dover Shores Family Practice (Orlando, FL) and Medstar Medical Group II LLC (Washington, DC). 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 Maria O'brien's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Maria O'brien accept?

Health plans from Florida Blue (BlueCross BlueShield FL), Florida Blue HMO (a BlueCross BlueShield FL company) and UnitedHealthcare list Maria O'brien 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 Maria O'brien was last updated on October 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.