Marissa Marzella, FNP
Family Nurse Practitioner · Phoenix, AZ
Marissa Marzella, FNP is a family nurse practitioner with a practice address in Phoenix, Arizona, and NPI 1811772874, issued on Aug 29, 2023. Check the license (Arizona 307586, as entered in NPPES) with the Arizona board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Marissa Marzella
- Credential
- FNP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 307586 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 8306 N 8TH St, Phoenix, AZ 85020
- Phone
- (480) 208-4409
- Enumerated
- Aug 29, 2023
- Record last updated
- Dec 28, 2024
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 5,933 in Arizona → Look up another NPI →
Verify Marissa Marzella in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Arizona board licenses this profession
Search for license 307586Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
50% more Medicare Part D claims than the average family nurse practitioner in 2024
1,951 Medicare Part D claims for 498 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Most prescribed
- Atorvastatin Calcium144 claims
- Amlodipine Besylate111 claims
- Losartan Potassium84 claims
- Albuterol Sulfate Hfa64 claims
- Omeprazole58 claims
- Levothyroxine Sodium53 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: $406.38
9 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 99,489 providers of this specialty with any payment received $650.95 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.
Marissa Marzella among 5,933 family nurse practitioner records in Arizona
Marissa Marzella, FNP is one of 5,933 family nurse practitioner 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 2023, is newer than 79% of them.
- NPI issued2023 · 79% of these records are older, 14% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileNo · 59% of these records are
- Record last updated2024 · 38% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,242 family nurse practitioner records list a practice address in Phoenix
They are 1,242 of the 31,399 NPPES records with a practice address in Phoenix, and 5,933 family nurse practitioner records in Arizona.
All 5,933 in Arizona → Every provider in Phoenix → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Shelley CannonPhoenix, AZ 850201700110749
- Tanya Cavallaro-Moretti, DNP FNP-BCPhoenix, AZ 850201265761399
- Linda Comeau, FNP-CPhoenix, AZ 850201730673211
- Nicole Davis, FNP-BCPhoenix, AZ 850201710489034
- Tammy HilliardPhoenix, AZ 850201881888972
- Tayler Lewis, FNPPhoenix, AZ 850201679028252
- Brittany Lopez, NPPhoenix, AZ 850201609368398
- Grace McGill, NP-CPhoenix, AZ 850201114294584
Common questions
What is Marissa Marzella, FNP's NPI number?
Marissa Marzella, FNP's National Provider Identifier (NPI) is 1811772874, issued on Aug 29, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Marissa Marzella, FNP located?
The NPPES record lists a practice address at 8306 N 8TH St, Phoenix, AZ, 85020. Phone: (480) 208-4409. Providers update this record themselves, so call before visiting.
How can I verify Marissa Marzella, FNP's license?
NPPES lists Arizona license number 307586, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.
How much does Marissa Marzella, FNP prescribe under Medicare Part D?
In 2024, Marissa Marzella, FNP had 1,951 Medicare Part D claims for 498 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.