Debbie Karstu, NP
NPI 1629277421 · Nurse Practitioner · Springfield, OH
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Debbie Karstu, NP is a Nurse Practitioner provider in Springfield, OH (NPI 1629277421).
Provider details
- NPI number
- 1629277421
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- Yes
- License
- 56990 (ID)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
- Nurse Practitioner363L00000X
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Quetiapine Fumarate | 53 |
| Oxcarbazepine | 46 |
| Clonazepam | 45 |
| Buspirone Hcl | 32 |
| Lamotrigine | 25 |
| Naltrexone Hcl | 21 |
| Ziprasidone Hcl | 15 |
| Trazodone Hcl | 14 |
| Lurasidone Hcl | 13 |
| Pramipexole Di-Hclbrand: Pramipexole Dihydrochloride | 12 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-07-12
- Last updated
- 2025-09-17
- Certified
- 2025-09-17
Frequently asked questions
- What is Debbie Karstu's NPI number?
- Debbie Karstu's National Provider Identifier (NPI) is 1629277421, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Debbie Karstu's specialty?
- Debbie Karstu is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Debbie Karstu located?
- Debbie Karstu's practice location on file with NPPES is 1948 N Limestone St, Springfield, OH 45503-2648.
- What is Debbie Karstu's phone number?
- The practice phone number listed in the NPPES registry for Debbie Karstu is (866) 534-2639.
- Does Debbie Karstu accept Medicare?
- Debbie Karstu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Debbie Karstu's NPI active?
- Yes — Debbie Karstu's NPI (1629277421) is active in the NPPES registry as of the last update on 2025-09-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.