Mary Ann Giannini, CNP
Adult Health Nurse Practitioner · Maumee, OH
Mary Ann Giannini, CNP is an adult health nurse practitioner with a practice address in Maumee, Ohio, and NPI 1659641223, issued on Jan 12, 2012. Check the license (Ohio 12819-NP, as entered in NPPES) with the Ohio board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mary Ann Giannini
- Credential
- CNP
- Primary taxonomy
- Adult Health Nurse Practitioner 363LA2200X
- License number
- 12819-NP OH
Self-reported in NPPES; status is on the state search - Practice location
- 5757 Monclova RD, Maumee, OH 43537
- Phone
- (419) 383-7400
- Enumerated
- Jan 12, 2012
- Record last updated
- May 25, 2026
- Medicare enrollment
- Enrolled (PECOS I20130212000274); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest adult health nurse practitioner records → All 1,591 in Ohio → Look up another NPI →
Also registered at 5757 Monclova RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mary Ann Giannini in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Ohio board licenses this profession
Search for license 12819-NPCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average adult health nurse practitioner in 2024
51 Medicare Part D claims for 21 beneficiaries, against an average of 1,280 among the 16,937 providers of this specialty who prescribed in Part D.
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.
Bills Medicare through 2 group practices
- Curana Health OF OhioCincinnati, OH
- Preferred Physician Services OF Ohio LLCWesterville, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mary Ann Giannini among 1,591 adult health nurse practitioner records in Ohio
Mary Ann Giannini, CNP is one of 1,591 adult health nurse practitioner records with a practice address in Ohio. 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 2012, is newer than 46% of them.
- NPI issued2012 · 46% of these records are older, 47% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2011 · median 2013 among the 939 with a school on file
- Record last updated2026 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2200X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Adult Health Nurse Practitioner providers in Ohio
There are 1,591 adult health nurse practitioner records in Ohio.
All 1,591 in Ohio → Every provider in Maumee → Adult Health Nurse Practitioner nationwide →
The 8 adult health nurse practitioner records with the nearest ZIP codes
- Denise Hinders, CNPMaumee, OH 435371851672828
- Kelly Shank, NPMaumee, OH 435371922084425
- Dana Chisholm, CNPPerrysburg, OH 435511710339593
- Christina Jaworski, MSN,CNPPerrysburg, OH 435511760450050
- Dorothy Meyer, NPPerrysburg, OH 435511801800495
- Marypat Page, APRN, CNPPerrysburg, OH 435511477061133
- Vanessa Rutter, CNPPerrysburg, OH 435511831602200
- Jodi Shepard, N.P.Perrysburg, OH 435511518307206
Common questions
What is Mary Ann Giannini, CNP's NPI number?
Mary Ann Giannini, CNP's National Provider Identifier (NPI) is 1659641223, issued on Jan 12, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Mary Ann Giannini, CNP located?
The NPPES record lists a practice address at 5757 Monclova RD, Maumee, OH, 43537. Phone: (419) 383-7400. Providers update this record themselves, so call before visiting.
How can I verify Mary Ann Giannini, CNP's license?
NPPES lists Ohio license number 12819-NP, as entered by the provider. Search the Ohio board that licenses this profession; the NPPES record confirms identity only.
How much does Mary Ann Giannini, CNP prescribe under Medicare Part D?
In 2024, Mary Ann Giannini, CNP had 51 Medicare Part D claims for 21 beneficiaries; the average among adult health nurse practitioner prescribers was 1,280. 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.