Marisela Kirby, PA
Physician Assistant · Tucson, AZ
Marisela Kirby, PA is a physician assistant with a practice address in Tucson, Arizona, and NPI 1518465558, issued on Jan 24, 2018. Check the license with the Arizona board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Marisela Kirby
- Credential
- PA
- Primary taxonomy
- Physician Assistant 363A00000X
- Practice location
- 2450 E River RD, Tucson, AZ 85718
- Phone
- (520) 795-7750
- Enumerated
- Jan 24, 2018
- Record last updated
- Sep 23, 2025
- Medicare enrollment
- Enrolled (PECOS I20190215000943); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 3,666 in Arizona → Look up another NPI →
Also registered at 2450 E River RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jonathan BryantNeurology Physician1639639479
Verify Marisela Kirby in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Arizona board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
83% fewer Medicare Part D claims than the average physician assistant in 2024
142 Medicare Part D claims for 76 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 49 claims were for opioids.
Most prescribed
- Methocarbamol46 claims
- Hydrocodone-Acetaminophen18 claims
- Oxycodone Hcl15 claims
- Oxycodone-Acetaminophen13 claims
- Cephalexin12 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.
Industry payments in 2024: $234.41
11 payments; by number, the most common kind was food and beverage; the largest payer was Emd Serono, Inc. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Neurological Associates OF TucsonTucson, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marisela Kirby among 3,666 physician assistant records in Arizona
Marisela Kirby, PA is one of 3,666 physician assistant records with a practice address in Arizona. 77% 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 48% of them.
- NPI issued2018 · 48% of these records are older, 47% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2012 · median 2018 among the 2,207 with a school on file
- Record last updated2025 · 35% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
284 physician assistant records list a practice address in Tucson
They are 284 of the 18,788 NPPES records with a practice address in Tucson, and 3,666 physician assistant records in Arizona.
All 3,666 in Arizona → Every provider in Tucson → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Martin Brandt, PACTucson, AZ 857181801882154
- Noelle EskandariTucson, AZ 857181154750941
- Heather Froeschle, P.A.Tucson, AZ 857181679960504
- David Gordon, PATucson, AZ 857181013948504
- Kasey Hollandsworth, PA-CTucson, AZ 857181356894554
- Anya Kaczmarek, PA-CTucson, AZ 857181578751053
- Duane Mortenson, P.A.Tucson, AZ 857181972719102
- Logan Nocerino, PA-CTucson, AZ 857181851763619
Common questions
What is Marisela Kirby, PA's NPI number?
Marisela Kirby, PA's National Provider Identifier (NPI) is 1518465558, issued on Jan 24, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Marisela Kirby, PA located?
The NPPES record lists a practice address at 2450 E River RD, Tucson, AZ, 85718. Phone: (520) 795-7750. Providers update this record themselves, so call before visiting.
How can I verify Marisela Kirby, PA's license?
Search the Arizona board that licenses this profession; the NPPES record confirms identity only.
How much does Marisela Kirby, PA prescribe under Medicare Part D?
In 2024, Marisela Kirby, PA had 142 Medicare Part D claims for 76 beneficiaries; the average among physician assistant prescribers was 830. 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.