Dr. Katherine Nicole Ash, MD
- Medicare services, 2024
- 947
- Medicare patients, 2024
- 617
- Part D claims, 2024
- 556
- MIPS score, 2024
- 100
- Hospital affiliations
- 1
- Practice address
- 400 S 43rd St, Renton, WA 98055
- Practice phone
- Call (425) 228-3450
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Dr. Katherine Nicole Ash is an emergency medicine physician in Renton, Washington
Dr. Ash practices at Valley Medical Center in Renton, Washington, part of University of Washington.
Dr. Ash's NPI, 1891053385, was assigned on May 2, 2012. Dr. Ash graduated from Indiana University School of Medicine in 2012. Dr. Ash holds Indiana license 01075000A.
- NPI
- 1891053385NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2961644513
- NPI enumeration date
- May 2, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (425) 228-3450
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 40
- Medical school graduation
- 2012
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Katherine Nicole Ash practices at Valley Medical Center in Renton, Washington
Dr. Ash's primary practice is Valley Medical Center, at 400 S 43rd St, Renton, WA 98055 in King County. The practice phone is (425) 228-3450.
- Valley Medical Center400 S 43rd St, Renton, WA 98055 · King CountyPhone(425) 228-3450
Source: Dmand AI Affiliation Data
Dr. Katherine Nicole Ash is affiliated with 1 site of care and 1 medical group
Dr. Ash's primary practice is Valley Medical Center in Renton, Washington, part of University of Washington. The medical group on file is Associated Emergency Physicians.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Katherine Nicole Ash's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ash practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Valley Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Katherine Nicole Ash is one of 1,408 emergency medicine physicians in Washington
Emergency medicine is Dr. Ash's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Ash is licensed in Indiana.
Specialties and state licenses
- Emergency medicine, IndianaPrimary
Emergency medicine physicians near Dr. Ash
Counts of emergency medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Katherine Nicole Ash billed Medicare for 947 services in 2024
CMS data shows 947 Medicare services from Dr. Ash across 6 procedure codes in 2024, for 617 Medicare patients. Medicare paid $88,994 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Ash's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4772024: 63032%
- Tests and treatments
- 2023: 3162024: 317No change
Dr. Ash compared with the Washington median for emergency medicine physicians, 2024
- Dr. Ash
- Washington median
- Medicare services
- 947vs 2683.5 times
- Medicare patients
- 617vs 2232.8 times
- Part D claims
- 374vs 616.1 times
Medians across 1,440 emergency medicine physicians in Washington with Dmand AI profiles that report each measure.
Dr. Ash's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Katherine Nicole Ash treated 617 Medicare patients in 2024, average age 74
CMS counts 617 Medicare patients who saw Dr. Ash in 2024. The largest group is 75 to 84, with 201 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 33% are also on Medicaid. Their average risk score is 2.14, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Ash's median patient age at 63, with 55% women.
Dr. Ash's Medicare patients by age, 2024
Dr. Ash's Medicare patients by sex, 2024
- Women33654%
- Men28146%
Chronic conditions among Dr. Ash's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis46%
- Diabetes45%
- Chronic kidney disease43%
- Mood disorders42%
- Depression39%
- Anxiety37%
Share of Medicare patients with each condition. A patient can have several.
Dr. Ash's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women55%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Katherine Nicole Ash wrote 556 Medicare Part D claims in 2024
In 2024, Dr. Ash wrote 556 Medicare Part D claims for 369 patients. 95% of them were for generic drugs. CMS names the drug for 374 of them, across 9 drugs with 11 or more claims each, at $2,896 in total drug cost. In 2023, CMS named 319 claims across 11 drugs.
Dr. Ash's Part D claims by kind of drug, 2024
- Generic530 claims95%
- Brand-name26 claims5%
Dr. Ash's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Ash's Part D claims, 2024
- Opioids12%65 of 556 claims
- Antibiotics42%232 of 556 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 3192024: 37417%
Drugs named by CMS: 9 in 2024, 11 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Katherine Nicole Ash scored 100 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Ash for performance year 2024, reported as part of a group. Dr. Ash accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Ash's MIPS scores, performance year 2024
- 100of 100Final score
- 96.2of 100Quality
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Katherine Nicole Ash graduated from Indiana University School of Medicine
Dr. Ash graduated from Indiana University School of Medicine in 2012.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Katherine Nicole Ash's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Katherine Nicole Ash
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Katherine Nicole Ash's NPI number?
Dr. Katherine Nicole Ash's NPI number is 1891053385. It was assigned on May 2, 2012, and it is active in the NPI Registry.
What kind of doctor is Dr. Katherine Nicole Ash?
Dr. Katherine Nicole Ash is an emergency medicine physician in Renton, Washington. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Katherine Nicole Ash practice?
Dr. Ash practices at 400 S 43rd St, Renton, WA 98055. Dr. Ash's primary practice is Valley Medical Center in Renton, Washington, part of University of Washington.
What is Dr. Katherine Nicole Ash's office phone number?
The practice phone on file for Dr. Ash is (425) 228-3450.
What is Dr. Katherine Nicole Ash's medical license number?
Dr. Ash holds Indiana license 01075000A.
Which hospitals is Dr. Katherine Nicole Ash affiliated with?
Dr. Ash practices at Valley Medical Center in Renton, Washington.
What medical group is Dr. Katherine Nicole Ash part of?
Dr. Ash is linked to Associated Emergency Physicians.
Does Dr. Katherine Nicole Ash accept Medicare?
Yes. CMS data shows Dr. Ash billed Medicare for 947 services in 2024, and Dr. Ash accepts Medicare assignment.
What is Dr. Katherine Nicole Ash's MIPS score?
Dr. Ash's MIPS final score for performance year 2024 is 100 out of 100, reported as part of a group.
How many Medicare patients does Dr. Katherine Nicole Ash see?
CMS counts 617 Medicare patients who saw Dr. Ash in 2024, with an average age of 74.
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What services does Dr. Katherine Nicole Ash bill to Medicare?
In 2024, Dr. Ash's most billed Medicare services were emergency department visit (99285), heart test or procedure (93042) and heart test or procedure (93010).
Where did Dr. Katherine Nicole Ash go to medical school?
Dr. Ash graduated from Indiana University School of Medicine in 2012.
What drugs does Dr. Katherine Nicole Ash prescribe most?
In 2024 Medicare Part D data, Dr. Ash's most prescribed drugs by claims were Cephalexin, Doxycycline Hyclate and Ondansetron ODT.
How long has Dr. Katherine Nicole Ash been practicing?
Dr. Ash graduated from medical school in 2012, 14 years ago.
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