Katherine Nicole Ash, MD
Emergency Medicine Physician · Indianapolis, IN
Katherine Nicole Ash, MD is an emergency medicine physician with a practice address in Indianapolis, Indiana, and NPI 1891053385, issued on May 2, 2012. Check the license (Indiana 01075000A, as entered in NPPES) on the Medical Licensing Board of Indiana; the Medicare figures below come from public CMS files.
- Name
- Katherine Nicole Ash
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 01075000A IN
Self-reported in NPPES; status is on the state search - Practice location
- 1120 South Dr, Indianapolis, IN 46202
- Phone
- (317) 355-5041
- Enumerated
- May 2, 2012
- Record last updated
- Jun 16, 2015 (not updated in 11 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20240912002865); accepts Medicare assignment
- Medical or professional school
- Indiana University School Of Medicine, 2012
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,293 in Indiana → Look up another NPI →
Also registered at 1120 South Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Katherine Nicole Ash in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Licensing Board of Indiana
Search for license 01075000ACheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.5 times the Medicare Part D claims of the average emergency medicine physician in 2024
556 Medicare Part D claims for 369 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims. 65 claims were for opioids.
Most prescribed
- Cephalexin87 claims
- Doxycycline Hyclate68 claims
- Ondansetron Odt46 claims
- Prednisone45 claims
- Amoxicillin-Clavulanate Potass35 claims
- Oxycodone Hcl34 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Associated Emergency Room Physicians Inc PSRenton, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katherine Nicole Ash among 1,293 emergency medicine physician records in Indiana
Katherine Nicole Ash, MD is one of 1,293 emergency medicine physician records with a practice address in Indiana. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 63% of them.
- NPI issued2012 · 63% of these records are older, 34% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2012 · median 2012 among the 814 with a school on file
- Record last updated2015 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Indiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
437 emergency medicine physician records list a practice address in Indianapolis
They are 437 of the 30,493 NPPES records with a practice address in Indianapolis, and 1,293 emergency medicine physician records in Indiana.
All 1,293 in Indiana → Every provider in Indianapolis → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Edward Bartkus, MDIndianapolis, IN 462021528001484
- Bart Besinger, MDIndianapolis, IN 462021508809468
- Geoffrey Billows, MDIndianapolis, IN 462021306889217
- Suzanne Combs, M.D.Indianapolis, IN 462021902848005
- James Doll, M.D.Indianapolis, IN 462021528000627
- C Fletcher, M.D.Indianapolis, IN 462021982646014
- Melanie Heniff, MDIndianapolis, IN 462021215979349
- Michelle Overfelt, MDIndianapolis, IN 462021609816628
Common questions
What is Katherine Nicole Ash, MD's NPI number?
Katherine Nicole Ash, MD's National Provider Identifier (NPI) is 1891053385, issued on May 2, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Nicole Ash, MD located?
The NPPES record lists a practice address at 1120 South Dr, Indianapolis, IN, 46202. Phone: (317) 355-5041. Providers update this record themselves, so call before visiting.
How can I verify Katherine Nicole Ash, MD's license?
NPPES lists Indiana license number 01075000A, as entered by the provider. Search the Medical Licensing Board of Indiana at https://www.in.gov/pla/professions/physicians-home/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Katherine Nicole Ash, MD prescribe under Medicare Part D?
In 2024, Katherine Nicole Ash, MD had 556 Medicare Part D claims for 369 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Katherine Nicole Ash, MD's MIPS final score?
The 2023 MIPS final score is 100 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.