Therese Nash, PA-C
NPI 1437295250 · Medical Physician Assistant · Warrenville, IL
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Therese Nash, PA-C is a Medical Physician Assistant provider in Warrenville, IL (NPI 1437295250).
Provider details
- NPI number
- 1437295250
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- 085002733 (IL)
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 tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
413 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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 does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 215 | $158 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 198 | $111 |
Typical Medicare-allowed amounts for these services range $111–$158 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 20 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Abiraterone Acetate | 58 | 17 |
| Prednisone | 53 | 22 |
| Hydroxyurea | 44 | 15 |
| Apixabanbrand: Eliquis | 36 | 16 |
| Warfarin Sodium | 32 | 14 |
| Omeprazole | 31 | 11 |
| Rivaroxabanbrand: Xarelto | 29 |
Practice location
Mailing address
Additional practice locations (1)
- 675 N Saint Clair St Ste 21-100Chicago, IL 60611-5970Phone: (312) 695-6772Fax: (312) 695-6189
Registry dates
- Enumerated
- 2007-01-29
- Last updated
- 2023-03-07
- Certified
- 2021-02-24
Frequently asked questions
- What is Therese Nash's NPI number?
- Therese Nash's National Provider Identifier (NPI) is 1437295250, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Therese Nash's specialty?
- Therese Nash is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Therese Nash located?
- Therese Nash's practice location on file with NPPES is 4405 Weaver Pkwy, Warrenville, IL 60555-3269.
- What is Therese Nash's phone number?
- The practice phone number listed in the NPPES registry for Therese Nash is (630) 352-5450.
- Does Therese Nash accept Medicare?
- Therese Nash is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Therese Nash's NPI active?
- Yes — Therese Nash's NPI (1437295250) is active in the NPPES registry as of the last update on 2023-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.