Dr. Olivia Grayce Tack , MD
Pediatrics • Granger, IN
6913 N Main St Ste 200
Granger, IN 465308039
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
Practice Location & Contact Primary Location
6913 N Main St Ste 200
Granger, IN 465308039
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
What Public CMS Data Show
Pediatrics: NPPES taxonomy is a reported classification, not proof of board certification.
Open Payments general payments, program year 2025
All general payments: $218.42 across 11 records.
By nature of payment
- Food and Beverage: $218.42 across 11 records.
Reporting-company totals (3 largest of 6)
- Corium, LLC: $104.29 across 5 records.
- Collegium Pharmaceutical, Inc.: $45.51 across 2 records.
- Tris Pharma Inc: $23.32 across 1 record.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
NPI first issued
2006
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Tack has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Tack as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Granger and Indiana
11 active clinicians are listed under Pediatrics with a practice address in Granger, IN (1,136 in Indiana).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Granger
0% of these 11 clinicians have the CMS telehealth indicator.
0% of these 11 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
-
Industry payments (Open Payments)
Industry payments (Open Payments) went from $11.45 in 2021 to $218.42 in 2025.
- 2021: $11.45
- 2022: $521.97
- 2023: $347.97
- 2024: $492.20
- 2025: $218.42
Sources: CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2025 (payments made January 1 – December 31, 2025): 11 records totaling $218.42.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Corium, LLC |
Food and Beverage
In-kind items and services
|
Azstarys | General | $24.04 |
| Tris Pharma Inc |
Food and Beverage
In-kind items and services
|
Dyanavel XR | General | $23.32 |
| Collegium Pharmaceutical, Inc. |
Food and Beverage
Cash or cash equivalent
|
Jornay PM | General | $23.29 |
| Corium, LLC |
Food and Beverage
In-kind items and services
|
Azstarys | General | $22.82 |
| Corium, LLC |
Food and Beverage
In-kind items and services
|
Azstarys | General | $22.78 |
| Collegium Pharmaceutical, Inc. |
Food and Beverage
Cash or cash equivalent
|
Jornay PM | General | $22.22 |
| Corium, LLC |
Food and Beverage
In-kind items and services
|
Azstarys | General | $21.10 |
| Seqirus USA Inc |
Food and Beverage
In-kind items and services
|
Flucelvax | General | $16.61 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
|
TRUMENBA | General | $15.03 |
| Merck Sharp & Dohme LLC |
Food and Beverage
In-kind items and services
|
VAXELIS | General | $13.66 |
| Corium, LLC |
Food and Beverage
In-kind items and services
|
Azstarys | General | $13.55 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2025-11-24NUCC Taxonomy Code: 208000000X
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.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - PEDIATRIC MEDICINE
I20061208000372
IN
3173522786
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Podiatrist - Foot & Ankle Surgery
Doctor of Podiatric Medicine
Family Medicine
Doctor of Medicine (M.D.)
Family Medicine
Doctor of Medicine (M.D.)
Family Medicine
Family Medicine
Doctor of Medicine (M.D.)
Family Medicine
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 6913 N MAIN ST STE 200, GRANGER, IN 465308039 (Tel: 5746474540)
Registered at 3245 HEALTH DR STE 100, GRANGER, IN 465301380 (Tel: 5746472713)
Registered at 2235 CLEVELAND RD, SOUTH BEND, IN 466283529 (Tel: 5746474530)
NPI status registered as active in NPPES database
Registered at 710 N NILES AVE, SOUTH BEND, IN 466171924 (Tel: 5746471610)
Registered at 6913 N MAIN ST, GRANGER, IN 465308039 (Tel: 5746472970)
Recorded as OLIVIA TACK, M.D.
Pediatrics (license number reported to NPPES: IN 01062281A)
NPI status registered as active in NPPES database
Registered at 6913 N MAIN ST, GRANGER, IN 465308039 (Tel: 5746472970)
Registered at 3355 DOUGLAS RD, SUITE 300, SOUTH BEND, IN 466351781
Recorded as OLIVIA TACK, M.D.
Pediatrics (license number reported to NPPES: IN 01062281A)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Mailing Address
3245 Health Dr Ste 100
Granger, IN 465301380
Phone: 5746472713