Mary Elizabeth Orris, NP
Nurse Practitioner · Ellisville, MO
Mary Elizabeth Orris, NP is a nurse practitioner with a practice address in Ellisville, Missouri, and NPI 1194966572, issued on Mar 16, 2009. Check the license (Missouri NPC151135, as entered in NPPES) with the Missouri board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mary Elizabeth Orris
- Credential
- NP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- NPC151135 MO
Self-reported in NPPES; status is on the state search - Practice location
- 233 Clarkson RD, Ellisville, MO 63011
- Phone
- (636) 256-8644
- Enumerated
- Mar 16, 2009
- Record last updated
- Mar 16, 2009 (not updated in 17 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 1,720 in Missouri → Look up another NPI →
Also registered at 233 Clarkson RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Tammy Martin, M.D.Emergency Medicine Physician1245250331
- Joan McCourt, ANPAdult Health Nurse Practitioner1740626563
Verify Mary Elizabeth Orris in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Missouri board licenses this profession
Search for license NPC151135Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
53% fewer Medicare Part D claims than the average nurse practitioner in 2024
520 Medicare Part D claims for 38 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. 13 claims were for opioids.
Most prescribed
- Progesterone67 claims
- Alprazolam29 claims
- Mounjaro24 claims
- Metformin Hcl Er22 claims
- Prednisone21 claims
- Metoprolol Tartrate15 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: $119.70
6 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. 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.
Mary Elizabeth Orris among 1,720 nurse practitioner records in Missouri
Mary Elizabeth Orris, NP is one of 1,720 nurse practitioner records with a practice address in Missouri. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 25% of them.
- NPI issued2009 · 25% of these records are older, 73% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2009 · 42% 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 Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
6 nurse practitioner records list a practice address in Ellisville
They are 6 of the 288 NPPES records with a practice address in Ellisville, and 1,720 nurse practitioner records in Missouri.
All 1,720 in Missouri → Every provider in Ellisville → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Adrienne Barrow, FNP-CManchester, MO 630111881236248
- Courtney Brush, FNPBallwin, MO 630111366781734
- Breanna Dolan, FNP-CEllisville, MO 630111629549506
- David Draney, ARNPEllisville, MO 630111144471061
- Jill Ellsworth, FNP-CEllisville, MO 630111790145910
- Christine Lane, APRNEllisville, MO 630111265754147
- Gwendolyn WarrenEllisville, MO 630111861591950
- Kristine Gonzalez, FNPArnold, MO 630101750791331
Common questions
What is Mary Elizabeth Orris, NP's NPI number?
Mary Elizabeth Orris, NP's National Provider Identifier (NPI) is 1194966572, issued on Mar 16, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Mary Elizabeth Orris, NP located?
The NPPES record lists a practice address at 233 Clarkson RD, Ellisville, MO, 63011. Phone: (636) 256-8644. Providers update this record themselves, so call before visiting.
How can I verify Mary Elizabeth Orris, NP's license?
NPPES lists Missouri license number NPC151135, as entered by the provider. Search the Missouri board that licenses this profession; the NPPES record confirms identity only.
How much does Mary Elizabeth Orris, NP prescribe under Medicare Part D?
In 2024, Mary Elizabeth Orris, NP had 520 Medicare Part D claims for 38 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.