Maria Lynn Stewart, FNP-C
Family Nurse Practitioner · Tucson, AZ
Maria Lynn Stewart, FNP-C is a family nurse practitioner with a practice address in Tucson, Arizona, and NPI 1144652959, issued on Aug 2, 2013. Check the license (Arizona 221020, as entered in NPPES) with the Arizona board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Maria Lynn Stewart
- Credential
- FNP-C
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 221020 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 5301 E Grant RD, Tucson, AZ 85712
- Phone
- (520) 324-3526
- Enumerated
- Aug 2, 2013
- Record last updated
- Sep 16, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (520) 324-1125
- Medicaid ID
- 495449 AZ
- Medicare enrollment
- Enrolled (PECOS I20190410000255); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 5,933 in Arizona → Look up another NPI →
Also registered at 5301 E Grant RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Daniel Aaronson, MDInternal Medicine Physician1134865355
- Ahmed AbuawadInternal Medicine Physician1326533431
- Seyedeh Atiyeh Afjei, MDStudent in an Organized Health Care Education/Training Program1477356160
- Chiamaka Agu, PHARMDStudent in an Organized Health Care Education/Training Program1215723820
- Edgar Aguayo, MDStudent in an Organized Health Care Education/Training Program1174325245
- Rand Al-Ani, MDStudent in an Organized Health Care Education/Training Program1528908928
Verify Maria Lynn Stewart in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Arizona board licenses this profession
Search for license 221020Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
85% fewer Medicare Part D claims than the average family nurse practitioner in 2024
196 Medicare Part D claims for 100 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 60% of claims.
Most prescribed
- Lantus Solostar40 claims
- Ultra-Fine Nano Pen Needle24 claims
- Nano 2nd Gen Pen Needle20 claims
- Insulin Lispro Kwikpen U-10018 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: $72.63
4 payments; by number, the most common kind was food and beverage; the largest payer was Dexcom, Inc. 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.
Bills Medicare through one group practice
- Tmc Medical NetworkTucson, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Maria Lynn Stewart among 5,933 family nurse practitioner records in Arizona
Maria Lynn Stewart, FNP-C 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 2013, is newer than 23% of them.
- NPI issued2013 · 23% of these records are older, 73% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2013 · median 2019 among the 3,510 with a school on file
- Record last updated2021 · 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).
907 family nurse practitioner records list a practice address in Tucson
They are 907 of the 18,788 NPPES records with a practice address in Tucson, and 5,933 family nurse practitioner records in Arizona.
All 5,933 in Arizona → Every provider in Tucson → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Bridget Doherty, NPTucson, AZ 857121952382715
- Elyse Hammett, FNPTucson, AZ 857121831103159
- Marguerite Havlis, FNPTucson, AZ 857121568497055
- Kathryn Kennel, NPTucson, AZ 857121144252164
- Suzanne Macdonald, NPTucson, AZ 857121588612402
- Kathleen McLeod, FNP-BCTucson, AZ 857121720054992
- Laurie McManus, FNPTucson, AZ 857121548246614
- Cynthia Mick, FNPTucson, AZ 857121043240591
Common questions
What is Maria Lynn Stewart, FNP-C's NPI number?
Maria Lynn Stewart, FNP-C's National Provider Identifier (NPI) is 1144652959, issued on Aug 2, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Maria Lynn Stewart, FNP-C located?
The NPPES record lists a practice address at 5301 E Grant RD, Tucson, AZ, 85712. Phone: (520) 324-3526. Providers update this record themselves, so call before visiting.
How can I verify Maria Lynn Stewart, FNP-C's license?
NPPES lists Arizona license number 221020, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.
How much does Maria Lynn Stewart, FNP-C prescribe under Medicare Part D?
In 2024, Maria Lynn Stewart, FNP-C had 196 Medicare Part D claims for 100 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.