NPPES file of Aug 9, 2026

Melissa Mathern, NP

Nurse Practitioner · Littleton, CO

Melissa Mathern, NP is a nurse practitioner with a practice address in Littleton, Colorado, and NPI 1255944922, issued on Aug 24, 2020. Check the license (Colorado APN.0995659-NP, as entered in NPPES) with the Colorado board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1255944922
Name
Melissa Mathern
Credential
NP
Primary taxonomy
Nurse Practitioner 363L00000X
License number
APN.0995659-NP CO
Self-reported in NPPES; status is on the state search
Practice location
7818 S Hill Cir, Littleton, CO 80120
Phone
(720) 425-2089
Enumerated
Aug 24, 2020
Record last updated
Jul 29, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20201015003431); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Melissa Mathern in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Colorado board licenses this profession
    Search for license APN.0995659-NP
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Colorado license search

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84% fewer Medicare Part D claims than the average nurse practitioner in 2024

174 Medicare Part D claims for 35 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. 86 claims were for opioids.

  1. Melissa Mathern174
  2. Specialty average1,109

Most prescribed

  1. Oxycodone-Acetaminophen22 claims
  2. Gabapentin14 claims
  3. Hydrocodone-Acetaminophen14 claims
  4. Oxycodone Hcl14 claims
  5. Lorazepam11 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): 88.2 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.

  1. Qualityout of 100 · 30% of the final score89.0
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%81.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through 2 group practices

  1. Catholic Health Initiatives ColoradoWestminster, CO
  2. Chi National Home Care, LLCCentennial, CO

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Melissa Mathern among 1,260 nurse practitioner records in Colorado

Melissa Mathern, NP is one of 1,260 nurse practitioner records with a practice address in Colorado. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 70% of them.

  • NPI issued2020 · 70% of these records are older, 25% newer
  • In a Medicare fileYes · 68% of these records are
  • In the CMS Doctors and Clinicians fileYes · 53% of these records are
  • Graduated2020 · median 2018 among the 662 with a school on file
  • Record last updated2021 · 46% 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 Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Nurse Practitioner providers in Colorado

There are 1,260 nurse practitioner records in Colorado.

The 8 nurse practitioner records with the nearest ZIP codes

  1. Ona Ahumada, NPLittleton, CO 801201790074763
  2. Alecia Brynda, ACNPLittleton, CO 801201598004780
  3. Renee Good, FNP-BCLittleton, CO 801201831893510
  4. Leah Hughes, ACNPLittleton, CO 801201558796698
  5. Brianna Jackson, NPLittleton, CO 801201679124200
  6. Jamie NortonLittleton, CO 801201851127005
  7. Rebecca Rabinowitz, NPLittleton, CO 801201487311593
  8. Jestine Rusing, DNPLittleton, CO 801201760150239

Common questions

What is Melissa Mathern, NP's NPI number?

Melissa Mathern, NP's National Provider Identifier (NPI) is 1255944922, issued on Aug 24, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Melissa Mathern, NP located?

The NPPES record lists a practice address at 7818 S Hill Cir, Littleton, CO, 80120. Phone: (720) 425-2089. Providers update this record themselves, so call before visiting.

How can I verify Melissa Mathern, NP's license?

NPPES lists Colorado license number APN.0995659-NP, as entered by the provider. Search the Colorado board that licenses this profession; the NPPES record confirms identity only.

How much does Melissa Mathern, NP prescribe under Medicare Part D?

In 2024, Melissa Mathern, NP had 174 Medicare Part D claims for 35 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.

What is Melissa Mathern, NP's MIPS final score?

The 2023 MIPS final score is 88.2 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.