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DR. MARK D O'BRIEN D.O.
NPI 1265532212
Pediatrics in Fort Wayne, IN

Active since September 22, 2006PECOS Enrolled
6507 E STATE BLVD, FORT WAYNE, IN 46815(260) 486-3300(260) 486-3600 Get Directions Write a Review

NPPES record last updated: April 14, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Mark D O'brien D.o. NPPES

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

DR. MARK D O'BRIEN D.O. (NPI 1265532212) is an individual pediatrics provider in Fort Wayne, Indiana, licensed in Indiana (02001451A) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1265532212
Entity TypeIndividualMale
Primary Taxonomy208000000X
Provider Legal NameDR. MARK D O'BRIENCredential: D.O.
Location Address6507 E STATE BLVDFort Wayne, IN 46815-7026
Mailing Address11109 Parkview Plaza Dr # 117Fort Wayne, IN 46845-1701
Phone(260) 486-3300
Fax(260) 486-3600
Sole ProprietorNo
Enumeration DateSeptember 22, 2006
Last NPPES UpdateApril 14, 2025
NPPES CertifiedApril 14, 2025
✔ NPI 1265532212 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in IN · 02001451A
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
6507 E STATE BLVD, Fort Wayne, IN 46815
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Other Identifiers 2

Other000000606296IN · Anthem
Medicaid200931380IN

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, CareSource.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)

Dr. Mark D O'brien D.o. 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 46815 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
$82.04 typical visit price
range $53.07 – $161.76
Typical copayment $20.51 (range $13.26 – $40.44)
Most-billed visit code 99203
Established Patient
$94.22 typical visit price
range $16.93 – $132.22
Typical copayment $23.55 (range $4.23 – $33.05)
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.

Other Providers at the Same Location NPPES 6

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

COURTNEY MARIE JACKSON MD
Family Medicine
6507 E STATE BLVD
FORT WAYNE, IN 46815
Allen County (260) 486-3300
JULIE BRYAN M.D.
Internal Medicine
6507 E STATE BLVD
FORT WAYNE, IN 46815
Allen County (260) 486-3300
CHRISTY A BUUCK PA
Physician Assistant
6507 E STATE BLVD
FORT WAYNE, IN 46815
Allen County (260) 486-3300
SHELLI A. JENKINS NP-C
Nurse Practitioner
6507 E STATE BLVD
FORT WAYNE, IN 46815
Allen County (260) 486-3300
SARA L BAUER NP
Nurse Practitioner
6507 E STATE BLVD
FORT WAYNE, IN 46815
Allen County (260) 486-3300
ASHRAF H HANNA MD
Family Medicine
6507 E STATE BLVD
FORT WAYNE, IN 46815
Allen County (260) 486-3300

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 O'brien's NPI number?

The NPI number for Mark O'brien is 1265532212. It was assigned to this individual provider in the NPPES registry on September 22, 2006.

Where is Mark O'brien located?

Mark O'brien practices at 6507 E State Blvd, Fort Wayne, IN 46815. The listed phone number is (260) 486-3300.

What is Mark O'brien's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Mark O'brien enrolled in Medicare?

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

What insurance does Mark O'brien accept?

Health plans from Anthem Blue Cross and Blue Shield and CareSource list Mark 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 Mark O'brien was last updated on April 14, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months 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.