Debbie Kay Karstu , NP
Nurse Practitioner β’ Springfield, OH
1948 N Limestone St
Springfield, OH 455032648
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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NPI assigned on July 12, 2007; this date does not establish years in practice.
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Published CMS data list 287 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Quetiapine Fumarate β 53 prescription fills, including refills.
- Oxcarbazepine β 46 prescription fills, including refills.
- Clonazepam β 45 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 11 records in the table Β· Guide: How to read Medicare Part D prescriber data
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Close to the middle for Part D prescriptions among clinicians listed under Nurse Practitioner in Ohio (2024, 1,946 clinicians with data). Median for this group: 341. Middle half: 95 to 1,344.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2024. Billing and prescribing volume is not a quality rating.
Practice Location & Contact Primary Location
1948 N Limestone St
Springfield, OH 455032648
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
Nurse Practitioner: NPPES taxonomy is a reported classification, not proof of board certification.
30-day fills
305 standardized 30-day fills in 2024
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$10,373 in 2024
The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2024.
Industry payments (Open Payments)
No Open Payments records are listed for this clinician for 2021β2025.
NPI first issued
2007
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, βDoes your provider accept Medicare as full payment?β
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)
Debbie Karstu 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 Debbie Karstu 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 Springfield and Ohio
Billing and prescribing volume is not a quality rating.
Medicare Part D prescriptions
Close to the middle for clinicians listed under Nurse Practitioner in Ohio (2024, 1,946 clinicians with data). Median for this group: 341. Middle half: 95 to 1,344.
Too few clinicians listed under Nurse Practitioner in Springfield have Medicare Part D data for 2024 to compare.
Part D drug cost
Close to the middle for clinicians listed under Nurse Practitioner in Ohio (2024, 1,946 clinicians with data). Median for this group: $17,171. Middle half: $1,153 to $140,965.
Too few clinicians listed under Nurse Practitioner in Springfield have Medicare Part D data for 2024 to compare.
15 active clinicians are listed under Nurse Practitioner with a practice address in Springfield, OH (4,257 in Ohio).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Springfield
20% of these 15 clinicians have the CMS telehealth indicator.
53.3% of these 15 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.
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Medicare Part D prescriptions
CMS data for Part D prescriptions are available for 2024 only.
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30-day fills
CMS data for 30-day fills are available for 2024 only.
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Part D drug cost
CMS data for Part D drug cost are available for 2024 only.
Sources: CMS Medicare Part D Prescribers (2024), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo Β· Report an error.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Quetiapine Fumarate | Quetiapine Fumarate | 53 | 1,441 | $999.57 | β |
| Oxcarbazepine | Oxcarbazepine | 46 | 1,378 | $1,153.73 | β |
| Clonazepam | Clonazepam | 45 | 1,249 | $288.90 | β |
| Buspirone Hcl | Buspirone Hcl | 32 | 1,045 | $301.20 | β |
| Lamotrigine | Lamotrigine | 25 | 667 | $199.46 | β |
| Naltrexone Hcl | Naltrexone Hcl | 21 | 626 | $851.74 | β |
| Ziprasidone Hcl | Ziprasidone Hcl | 15 | 417 | $438.29 | β |
| Trazodone Hcl | Trazodone Hcl | 14 | 538 | $100.24 | β |
| Lurasidone Hcl | Lurasidone Hcl | 13 | 374 | $5,828.23 | β |
| Pramipexole Dihydrochloride | Pramipexole Di-Hcl | 12 | 584 | $87.85 | β |
| Clonidine Hcl | Clonidine Hcl | 11 | 312 | $123.66 | β |
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2025-09-17NUCC Taxonomy Code: 363L00000X
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
NUCC Taxonomy Code: 363LF0000X
NUCC Taxonomy Code: 363LF0000X
NUCC Taxonomy Code: 363LF0000X
NUCC Taxonomy Code: 363L00000X
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
NUCC Taxonomy Code: 363L00000X
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - NURSE PRACTITIONER
I20231129003428
PA
8325173404
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.
Social Worker - Clinical
LISWS
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 1948 N LIMESTONE ST, SPRINGFIELD, OH 455032648 (Tel: 8665342639)
Registered at 6415 5 MILE POINT RD, ALLOUEZ, MI 498056949 (Tel: 9062815061)
Nurse Practitioner (license number reported to NPPES: ID 56990)
NPI status registered as active in NPPES database
Registered at 540 DEPOT ST, HANCOCK, MI 499302031 (Tel: 9064827382)
Registered at 22198 BOSTON LOCATION RD, HANCOCK, MI 499309409 (Tel: 9064827382)
Recorded as DEBBIE KARSTU, NP
Nurse Practitioner (license number reported to NPPES: MI 4704161795)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Nurse Practitioners in Springfield
- Mikayla Lyons, APRN
- Tiffany Koors, NP-C
- Wesley Mccomas, FNP
- Annette Hall, NURSE PRACTITIONER
- Megan Huebner, PMHNP
- Nivea Jarvis, NP-C
Mailing Address
6415 5 Mile Point Rd
Allouez, MI 498056949
Phone: 9062815061