Crystal Joy Marx
Family Nurse Practitioner · Bozeman, MT
Crystal Joy Marx is a family nurse practitioner with a practice address in Bozeman, Montana, and NPI 1770135782, issued on Jul 10, 2019. Check the license (Montana NUR-APRN-LIC-145687, as entered in NPPES) with the Montana board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Crystal Joy Marx
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- NUR-APRN-LIC-145687 MT
Self-reported in NPPES; status is on the state search - Practice location
- 935 Highland Blvd Ste 2180, Bozeman, MT 59715
- Phone
- (406) 414-5000
- Enumerated
- Jul 10, 2019
- Record last updated
- Apr 9, 2025
- Medicare enrollment
- Enrolled (PECOS I20190927001774); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 815 in Montana → Look up another NPI →
Also registered at 935 Highland Blvd Ste 2180
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Amy Katz, RN, CDEDiabetes Educator Registered Nurse1821611666
- Sara Lemert, PA-CMedical Physician Assistant1245678424
- James Marshall, PHYSICIAN ASSISTANTPhysician Assistant1861612558
Verify Crystal Joy Marx in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Montana board licenses this profession
Search for license NUR-APRN-LIC-145687Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
10% fewer Medicare Part D claims than the average family nurse practitioner in 2024
1,168 Medicare Part D claims for 139 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. 14 claims were for opioids.
Most prescribed
- Levothyroxine Sodium100 claims
- Atorvastatin Calcium97 claims
- Amlodipine Besylate47 claims
- Lisinopril47 claims
- Rosuvastatin Calcium41 claims
- Metformin Hcl37 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): 80.8 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: $254.84
9 payments; by number, the most common kind was food and beverage; the largest payer was Smith+Nephew, 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.
3 hospitals and group practices
- Bozeman Health Deaconess HospitalBozeman, MT · Acute Care Hospitals4 of 5 stars
- Bates Family Diversified LLCThree Forks, MT
- Three Rivers Clinic, LLCThree Forks, MT
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.
Crystal Joy Marx among 815 family nurse practitioner records in Montana
Crystal Joy Marx 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 2019, is newer than 60% of them.
- NPI issued2019 · 60% of these records are older, 35% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2019 · median 2018 among the 505 with a school on file
- Record last updated2025 · 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).
78 family nurse practitioner records list a practice address in Bozeman
They are 78 of the 2,433 NPPES records with a practice address in Bozeman, and 815 family nurse practitioner records in Montana.
All 815 in Montana → Every provider in Bozeman → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Cynthia Bacon, NPBozeman, MT 597151821013160
- Leslie Carlson, NPBozeman, MT 597151639130560
- Tammy Chambers, FNPBozeman, MT 597151407151574
- Nyla Chandler, FNPBozeman, MT 597151417926148
- Mary Cook, ARNPBozeman, MT 597151861639619
- Barbara Eckstein, NPBozeman, MT 597151134334204
- Kristi King, FNPBozeman, MT 597151841525607
- Margaret Marsh, CFNPBozeman, MT 597151851569438
Common questions
What is Crystal Joy Marx's NPI number?
Crystal Joy Marx's National Provider Identifier (NPI) is 1770135782, issued on Jul 10, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Crystal Joy Marx located?
The NPPES record lists a practice address at 935 Highland Blvd Ste 2180, Bozeman, MT, 59715. Phone: (406) 414-5000. Providers update this record themselves, so call before visiting.
How can I verify Crystal Joy Marx's license?
NPPES lists Montana license number NUR-APRN-LIC-145687, as entered by the provider. Search the Montana board that licenses this profession; the NPPES record confirms identity only.
How much does Crystal Joy Marx prescribe under Medicare Part D?
In 2024, Crystal Joy Marx had 1,168 Medicare Part D claims for 139 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
What is Crystal Joy Marx's MIPS final score?
The 2023 MIPS final score is 80.8 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.