Katelyn Randi Lee Marsden, M.D.
Neurology Physician · Scottsdale, AZ
Katelyn Randi Lee Marsden, M.D. is a neurology physician with a practice address in Scottsdale, Arizona, and NPI 1891282315, issued on Apr 19, 2018. Check the license (Arizona 65987, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Katelyn Randi Lee Marsden
- Credential
- M.D.
- Primary taxonomy
- Neurology Physician 2084N0400X
- License numbers
- 65987 AZ
MED-PHYS-LIC-116649 MT
Self-reported in NPPES; status is on the state search - Practice location
- 13400 E Shea Blvd, Scottsdale, AZ 85259
- Phone
- (480) 301-8000
- Enumerated
- Apr 19, 2018
- Record last updated
- Feb 19, 2024
- Medicare enrollment
- Enrolled (PECOS I20230802003927); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 458 in Arizona → Look up another NPI →
Also registered at 13400 E Shea Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rawad Abbas, MDNeurological Surgery Physician1255028825
- Abdelmohaymin Abdalla, MDPulmonary Disease Physician1871081505
- Hesham Mubarak Abdalla, M.B.B.S.Internal Medicine Physician1013696111
- Mahmoud Abdelnabi, MDCardiovascular Disease Physician1548934714
- Haidar Abdul-Muhsin, M.B.CH.B.Urology Physician1356755250
- Ali Abdulsahib, MDInfectious Disease Physician1417535030
Verify Katelyn Randi Lee Marsden in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 65987Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average neurology physician in 2024
46 Medicare Part D claims for 12 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium11 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.
2 hospitals and group practices
- Billings ClinicBillings, MT · Acute Care Hospitals4 of 5 stars
- Kalispell Regional Medical Center IncKalispell, MT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Katelyn Randi Lee Marsden among 458 neurology physician records in Arizona
Katelyn Randi Lee Marsden, M.D. is one of 458 neurology physician records with a practice address in Arizona. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 78% of them.
- NPI issued2018 · 78% of these records are older, 19% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2018 · median 2005 among the 298 with a school on file
- Record last updated2024 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurology Physician providers in Arizona
There are 458 neurology physician records in Arizona.
All 458 in Arizona → Every provider in Scottsdale → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Charles Adler, M.D.Scottsdale, AZ 852591023091022
- Erich Bosch, M.D.Scottsdale, AZ 852591447233150
- Jonathan Carter, M.D.Scottsdale, AZ 852591851377378
- Richard Caselli, M.D.Scottsdale, AZ 852591568444255
- John Caviness, M.D.Scottsdale, AZ 852591932182268
- Erika Driver-Dunckley, M.D.Scottsdale, AZ 852591881678480
- Sanford Fineman, MDScottsdale, AZ 852591720067853
- Rashmi Halker Singh, M.D.Scottsdale, AZ 852591508895582
Common questions
What is Katelyn Randi Lee Marsden, M.D.'s NPI number?
Katelyn Randi Lee Marsden, M.D.'s National Provider Identifier (NPI) is 1891282315, issued on Apr 19, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Katelyn Randi Lee Marsden, M.D. located?
The NPPES record lists a practice address at 13400 E Shea Blvd, Scottsdale, AZ, 85259. Phone: (480) 301-8000. Providers update this record themselves, so call before visiting.
How can I verify Katelyn Randi Lee Marsden, M.D.'s license?
NPPES lists Arizona license number 65987, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Katelyn Randi Lee Marsden, M.D. prescribe under Medicare Part D?
In 2024, Katelyn Randi Lee Marsden, M.D. had 46 Medicare Part D claims for 12 beneficiaries; the average among neurology physician prescribers was 1,370. Part D covers Medicare prescriptions only.
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.