BARBARA DIAKOS MD
NPI 1912934423
Obstetrics & Gynecology in Saint John, IN

Active since June 28, 2006PECOS EnrolledAccepts Medicare Assignment
9660 WICKER AVE, SAINT JOHN, IN 46373(219) 226-2236 Get Directions Write a Review

NPPES record last updated: June 7, 2024. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Jun 7, 2024, Aug 14, 2019 (2 updates tracked since 2019).

About Barbara Diakos Md NPPES

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

BARBARA DIAKOS MD (NPI 1912934423) is an individual obstetrics & gynecology provider in Saint John, Indiana, licensed in Indiana (01082757A) and active in the NPI registry since June 2006. She is enrolled in Medicare PECOS, is affiliated with St Mary Medical Center Inc, and is a graduate of Loyola University Of Chicago, Stritch School Of Medicine (1990).

NPPES Registry Identity

NPI1912934423
Entity TypeIndividualFemale
Primary Taxonomy207V00000X
Provider Legal NameBARBARA DIAKOSCredential: MD
Location Address9660 WICKER AVESaint John, IN 46373-9487
Mailing Address8558 BroadwayMerrillville, IN 46410-7032 · (219) 739-2770 · Fax (219) 703-6854
Sole ProprietorNo
Medical School CMSLoyola University Of Chicago, Stritch School Of MedicineGraduated 1990
Enumeration DateJune 28, 2006
Last NPPES UpdateJune 7, 20242 updates tracked since enumeration
NPPES CertifiedJune 7, 2024
NPI 1912934423 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License Licensed in IN · 01082757A
Definition

An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.

9660 WICKER AVE, Saint John, IN 46373

Other Identifiers 3

Medicaid300010757IN
Other1620171IL · Blue Cross Blue Shield
Medicaid036086553IL

Accepted Insurance

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Barbara Diakos Md 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 ID9931240694
PECOS Enrollment IDI20190822001371
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.

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

St Mary Medical Center Inc

Acute Care Hospitals · Hobart, IN
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number150034
Location1500 S Lake Park AveHobart, IN 46342 · Lake County
Emergency services Birthing friendly

Community Hospital

Acute Care Hospitals · Munster, IN
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number150125
Location901 Macarthur BlvdMunster, IN 46321 · Lake County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 46373 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
$122.49 typical visit price
range $53.07 – $161.76
Typical copayment $30.62 (range $13.26 – $40.44)
Most-billed visit code 99204
Established Patient
$66.48 typical visit price
range $16.93 – $132.22
Typical copayment $16.62 (range $4.23 – $33.05)
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 20

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

Family Medicine
9660 WICKER AVE
ST JOHN, IN 46373
Family Medicine
9660 WICKER AVE
ST JOHN, IN 46373
Family Medicine
9660 WICKER AVE
ST JOHN, IN 46373
Family Medicine
9660 WICKER AVE
ST JOHN, IN 46373
Clinical Nurse Specialist (Adult Health)
9660 WICKER AVE
SAINT JOHN, IN 46373
Orthopaedic Surgery
9660 WICKER AVE
SAINT JOHN, IN 46373
Emergency Medicine
9660 WICKER AVE
ST. JOHN, IN 46373
Family Medicine
9660 WICKER AVE, STE 100E
ST JOHN, IN 46373

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1912934423, enumerated as an "individual" on June 28, 2006.

The provider is located at 9660 WICKER AVE SAINT JOHN, IN 46373 and the phone number is (219) 226-2236.

Obstetrics & Gynecology with taxonomy code 207V00000X.

The provider might be accepting Accepts: Ambetter from Buckeye Health Plan, Ambetter from. Please consult your insurance carrier or call the provider to verify.

Barbara Diakos is affiliated with: ST MARY MEDICAL CENTER INC and COMMUNITY HOSPITAL.