Mary E. Gray, FNP
Family Nurse Practitioner · Great Falls, MT
Mary E. Gray, FNP is a family nurse practitioner with a practice address in Great Falls, Montana, and NPI 1184625055, issued on Aug 2, 2005. Check the license (Montana 100012, as entered in NPPES) with the Montana board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mary E. Gray
- Credential
- FNP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 100012 MT
Self-reported in NPPES; status is on the state search - Practice location
- 1401 25TH St S, Great Falls, MT 59405
- Phone
- (406) 731-8888
- Enumerated
- Aug 2, 2005
- Record last updated
- Mar 27, 2026
- Fax
- (406) 731-8876
- Medicare enrollment
- Enrolled (PECOS I20100113000228); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 815 in Montana → Look up another NPI →
Also registered at 1401 25TH St S
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Thomas Addison, MDGeriatric Medicine (Internal Medicine) Physician1871594754
- Sheela Ahmed, MDPulmonary Disease Physician1083736227
- Jill Aitken, AUDAudiologist1730386020
- Jamie Aleba, PAMedical Physician Assistant1184929572
- Thomas Attaway, MDGastroenterology Physician1922012442
- Lily AvgustovskiyNurse Practitioner1093122335
Verify Mary E. Gray in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Montana board licenses this profession
Search for license 100012Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.6 times the Medicare Part D claims of the average family nurse practitioner in 2024
4,749 Medicare Part D claims for 327 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 536 claims were for opioids.
Most prescribed
- Levothyroxine Sodium203 claims
- Hydrocodone-Acetaminophen181 claims
- Fentanyl167 claims
- Atorvastatin Calcium133 claims
- Simvastatin126 claims
- Tramadol Hcl119 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 80.5 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: $68.82
4 payments; by number, the most common kind was food and beverage; the largest payer was Astellas Pharma US 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.
One hospital affiliation
- Benefis Hospitals IncGreat Falls, MT · Acute Care Hospitals2 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Mary E. Gray among 815 family nurse practitioner records in Montana
Mary E. Gray, FNP is one of 815 family nurse practitioner records with a practice address in Montana. 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 97% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1988 · median 2018 among the 505 with a school on file
- Record last updated2026 · 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 Montana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
87 family nurse practitioner records list a practice address in Great Falls
They are 87 of the 1,798 NPPES records with a practice address in Great Falls, and 815 family nurse practitioner records in Montana.
All 815 in Montana → Every provider in Great Falls → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Robin Boland, FNPGreat Falls, MT 594051528398492
- Anne Eby, APRN, FNPGreat Falls, MT 594051396077632
- Edith Ellsworth, APRN, BCGreat Falls, MT 594051972786986
- Gretchen Fowell, FNPGreat Falls, MT 594051649209867
- Heidi Fritz, FNPGreat Falls, MT 594051770538407
- Sonya Gilson, APNPGreat Falls, MT 594051295981801
- Jason Gleason, FNPGreat Falls, MT 594051447360987
- Denise Gresham, FNPGreat Falls, MT 594051750383287
Common questions
What is Mary E. Gray, FNP's NPI number?
Mary E. Gray, FNP's National Provider Identifier (NPI) is 1184625055, issued on Aug 2, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Mary E. Gray, FNP located?
The NPPES record lists a practice address at 1401 25TH St S, Great Falls, MT, 59405. Phone: (406) 731-8888. Providers update this record themselves, so call before visiting.
How can I verify Mary E. Gray, FNP's license?
NPPES lists Montana license number 100012, as entered by the provider. Search the Montana board that licenses this profession; the NPPES record confirms identity only.
How much does Mary E. Gray, FNP prescribe under Medicare Part D?
In 2024, Mary E. Gray, FNP had 4,749 Medicare Part D claims for 327 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
What is Mary E. Gray, FNP's MIPS final score?
The 2023 MIPS final score is 80.5 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.