Katelyn Marsden, M.D.
NPI 1891282315 · Neurology Physician · Scottsdale, AZ
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katelyn Marsden, M.D. is a Neurology Physician provider in Scottsdale, AZ (NPI 1891282315).
Provider details
- NPI number
- 1891282315
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 65987 (AZ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
8 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
348 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 95 | $76 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 58 | $115 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 52 | $48 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 45 | $168 |
| Critical Care, First 30-74 Minutes99291 | 30 | $206 |
| Telephone Or Internet Assessment With Verbal and Written Report By Consulting Physician, 11-20 Minutes99447 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 1 distinct drug on file.
| Drug | Part D claims (2024) |
|---|---|
| Atorvastatin Calcium | 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 (2)
- 200 Commons Way Ste CKalispell, MT 59901-1915Phone: (406) 752-5095Fax: (406) 751-3079
- 1959 Ne Pacific StreetSeattle, WA 98195Phone: (206) 543-3605
Registry dates
- Enumerated
- 2018-04-19
- Last updated
- 2024-02-19
- Certified
- 2024-02-19
Frequently asked questions
- What is Katelyn Marsden's NPI number?
- Katelyn Marsden's National Provider Identifier (NPI) is 1891282315, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katelyn Marsden's specialty?
- Katelyn Marsden is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Katelyn Marsden located?
- Katelyn Marsden's practice location on file with NPPES is 13400 E Shea Blvd, Scottsdale, AZ 85259-5499.
- What is Katelyn Marsden's phone number?
- The practice phone number listed in the NPPES registry for Katelyn Marsden is (480) 301-8000.
- Does Katelyn Marsden accept Medicare?
- Katelyn Marsden is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katelyn Marsden's NPI active?
- Yes — Katelyn Marsden's NPI (1891282315) is active in the NPPES registry as of the last update on 2024-02-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.