Karissa Arca, M.D.
Neurology Physician · Scottsdale, AZ
Karissa Arca, M.D. is a neurology physician with a practice address in Scottsdale, Arizona, and NPI 1235526955, issued on Apr 20, 2015. Check the license (Arizona 51896, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Karissa Arca
- Credential
- M.D.
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- 51896 AZ
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 20, 2015
- Record last updated
- Oct 28, 2024
- Medicare enrollment
- Enrolled (PECOS I20200622001359); accepts Medicare assignment
- Medical or professional school
- Loma Linda University School Of Medicine, 2015
- 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.
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Verify Karissa Arca in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 51896Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
75% fewer Medicare Part D claims than the average neurology physician in 2024
337 Medicare Part D claims for 67 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims.
Most prescribed
- Midodrine Hcl38 claims
- Pyridostigmine Bromide37 claims
- Privigen20 claims
- Pregabalin15 claims
- Fludrocortisone Acetate13 claims
- Lacosamide13 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): 78.6 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
- Mayo Clinic ArizonaScottsdale, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karissa Arca among 458 neurology physician records in Arizona
Karissa Arca, 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 2015, is newer than 72% of them.
- NPI issued2015 · 72% of these records are older, 25% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2015 · 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 Karissa Arca, M.D.'s NPI number?
Karissa Arca, M.D.'s National Provider Identifier (NPI) is 1235526955, issued on Apr 20, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Karissa Arca, 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 Karissa Arca, M.D.'s license?
NPPES lists Arizona license number 51896, 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 Karissa Arca, M.D. prescribe under Medicare Part D?
In 2024, Karissa Arca, M.D. had 337 Medicare Part D claims for 67 beneficiaries; the average among neurology physician prescribers was 1,370. Part D covers Medicare prescriptions only.
What is Karissa Arca, M.D.'s MIPS final score?
The 2023 MIPS final score is 78.6 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.