Mary Alexis Steimer, N.P.
Nurse Practitioner · Fairfax, VA
Mary Alexis Steimer, N.P. is a nurse practitioner with a practice address in Fairfax, Virginia, and NPI 1669713368, issued on Mar 6, 2013. Check the license (Virginia 0024170715, as entered in NPPES) with the Virginia board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mary Alexis Steimer
- Credential
- N.P.
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- 0024170715 VA
Self-reported in NPPES; status is on the state search - Practice location
- 8081 Innovation Park Dr, Fairfax, VA 22031
- Phone
- (571) 472-4724
- Enumerated
- Mar 6, 2013
- Record last updated
- May 10, 2022
- Fax
- (571) 472-0241
- Medicare enrollment
- Enrolled (PECOS I20160310002361); accepts Medicare assignment
- Medical or professional school
- Emory University School Of Medicine, 2012
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 1,721 in Virginia → Look up another NPI →
Also registered at 8081 Innovation Park Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jafar Al-Mondhiry, M.D.Medical Oncology Physician1528446242
- Sheinei Alan, MD, PHDInternal Medicine Physician1073046538
Verify Mary Alexis Steimer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Virginia board licenses this profession
Search for license 0024170715Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average nurse practitioner in 2024
65 Medicare Part D claims for 31 beneficiaries, against an average of 1,109 among the 54,319 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 81.3 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).
Industry payments in 2024: $159.32
2 payments; by number, the most common kind was food and beverage; the largest payer was E.R. Squibb & Sons, L.L.C. The 38,884 providers of this specialty with any payment received $791.64 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
- Inova Health Care ServicesLeesburg, VA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mary Alexis Steimer among 1,721 nurse practitioner records in Virginia
Mary Alexis Steimer, N.P. is one of 1,721 nurse practitioner records with a practice address in Virginia. 70% 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 40% of them.
- NPI issued2013 · 40% of these records are older, 57% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileYes · 54% of these records are
- Graduated2012 · median 2018 among the 921 with a school on file
- Record last updated2022 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
83 nurse practitioner records list a practice address in Fairfax
They are 83 of the 6,584 NPPES records with a practice address in Fairfax, and 1,721 nurse practitioner records in Virginia.
All 1,721 in Virginia → Every provider in Fairfax → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Farideh AbbasiFairfax, VA 220311326220047
- Minna Bacarra, NPFairfax, VA 220311255339370
- Jane Bartlett, NPFairfax, VA 220311639379852
- Bronwen Berliner, NPFairfax, VA 220311912997065
- Nancy Burgett, CNPFairfax, VA 220311114044724
- Mary FisherFairfax, VA 220311134144306
- Wendy Holt, APRNFairfax, VA 220311346407574
- Mary Linn, N.P.Fairfax, VA 220311649434499
Common questions
What is Mary Alexis Steimer, N.P.'s NPI number?
Mary Alexis Steimer, N.P.'s National Provider Identifier (NPI) is 1669713368, issued on Mar 6, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Mary Alexis Steimer, N.P. located?
The NPPES record lists a practice address at 8081 Innovation Park Dr, Fairfax, VA, 22031. Phone: (571) 472-4724. Providers update this record themselves, so call before visiting.
How can I verify Mary Alexis Steimer, N.P.'s license?
NPPES lists Virginia license number 0024170715, as entered by the provider. Search the Virginia board that licenses this profession; the NPPES record confirms identity only.
How much does Mary Alexis Steimer, N.P. prescribe under Medicare Part D?
In 2024, Mary Alexis Steimer, N.P. had 65 Medicare Part D claims for 31 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.
What is Mary Alexis Steimer, N.P.'s MIPS final score?
The 2023 MIPS final score is 81.3 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.