Katherine Oberwager, CNP
NPI 1013432186 · Psychiatric/Mental Health Nurse Practitioner · Springfield, MA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Oberwager, CNP is a Psychiatric/Mental Health Nurse Practitioner provider in Springfield, MA (NPI 1013432186).
Provider details
- NPI number
- 1013432186
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CNP
- Sex
- Female
- Sole proprietor
- No
- License
- RN2316926 (MA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
8 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
4 documented practice locations
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 · 2 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Clonidine Hcl | 11 |
| Escitalopram Oxalate | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (3)
- 150 Lower Westfield RoadHolyoke, MA 01040Phone: (413) 794-1038Fax: (413) 322-4992
- 150 Lower Westfield RoadHolyoke, MA 01040Phone: (413) 794-1038Fax: (413) 322-4992
- 3300 Main Street4th FlSpringfield, MA 01107-1112Phone: (413) 794-5555Fax: (413) 794-7140
Registry dates
- Enumerated
- 2017-08-09
- Last updated
- 2025-04-04
- Certified
- 2025-04-04
Frequently asked questions
- What is Katherine Oberwager's NPI number?
- Katherine Oberwager's National Provider Identifier (NPI) is 1013432186, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Oberwager's specialty?
- Katherine Oberwager is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Katherine Oberwager located?
- Katherine Oberwager's practice location on file with NPPES is 300 Carew St, Springfield, MA 01104-2485.
- What is Katherine Oberwager's phone number?
- The practice phone number listed in the NPPES registry for Katherine Oberwager is (413) 794-1038.
- Does Katherine Oberwager accept Medicare?
- Katherine Oberwager is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Oberwager's NPI active?
- Yes — Katherine Oberwager's NPI (1013432186) is active in the NPPES registry as of the last update on 2025-04-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.