Katherine Ash, MD
NPI 1891053385 · Emergency Medicine Physician · Indianapolis, IN
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Ash, MD is a Emergency Medicine Physician provider in Indianapolis, IN (NPI 1891053385).
Provider details
- NPI number
- 1891053385
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 01075000A (IN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
14 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
947 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) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 454 | $184 |
| Electrocardiogram (ecg) 1 to 3 Leads With Review By Physician Only93042 | 193 | $7 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 124 | $8 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 116 | $126 |
| Critical Care, First 30-74 Minutes99291 | 43 | $224 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 17 | $75 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cephalexin | 87 | 87 |
| Doxycycline Hyclate | 68 | 66 |
| Ondansetronbrand: Ondansetron Odt | 46 | 46 |
| Prednisone | 45 | 43 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 35 | 34 |
| Oxycodone Hcl | 34 | 34 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen |
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-05-02
- Last updated
- 2015-06-16
Frequently asked questions
- What is Katherine Ash's NPI number?
- Katherine Ash's National Provider Identifier (NPI) is 1891053385, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Ash's specialty?
- Katherine Ash is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Katherine Ash located?
- Katherine Ash's practice location on file with NPPES is 1120 South Dr, Indianapolis, IN 46202-5135.
- What is Katherine Ash's phone number?
- The practice phone number listed in the NPPES registry for Katherine Ash is (317) 355-5041.
- Does Katherine Ash accept Medicare?
- Katherine Ash is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Ash's NPI active?
- Yes — Katherine Ash's NPI (1891053385) is active in the NPPES registry as of the last update on 2015-06-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.