NPPES file of Aug 9, 2026

Carolyn R. Firth, NP

Family Nurse Practitioner · Minneapolis, MN

Carolyn R. Firth, NP is a family nurse practitioner with a practice address in Minneapolis, Minnesota, and NPI 1255638649, issued on Feb 21, 2011. Check the license (Minnesota CNP4886, as entered in NPPES) with the Minnesota 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
1255638649
Name
Carolyn R. Firth
Credential
NP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License numbers
CNP4886 MN
145595 WI
Self-reported in NPPES; status is on the state search
Practice location
2450 Riverside Ave, Minneapolis, MN 55454
Phone
(612) 672-6000
Enumerated
Feb 21, 2011
Record last updated
Jul 21, 2022
Fax
(612) 273-4098
Medicaid ID
1255638649 WI
Medicare enrollment
Enrolled (PECOS I20171017000098); 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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Also registered at 2450 Riverside Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Grant Aakre, M.D.Anesthesiology Physician1518354273
  2. Ramona Aaseby-Aguilera, PA-CPhysician Assistant1407896269
  3. Abdallah Abboud, M.D.Pulmonary Disease Physician1912314824
  4. Boburbek Abdugabborov, MDStudent in an Organized Health Care Education/Training Program1053293472
  5. Mayada Abu ShanapStudent in an Organized Health Care Education/Training Program1780083998
  6. Rebecca Abuayed, MDStudent in an Organized Health Care Education/Training Program1356287080

Verify Carolyn R. Firth in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Minnesota board licenses this profession
    Search for license CNP4886
    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 Minnesota license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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93% fewer Medicare Part D claims than the average family nurse practitioner in 2024

94 Medicare Part D claims for 22 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.

  1. Carolyn Firth94
  2. Specialty average1,305

Most prescribed

  1. Sulfamethoxazole-Trimethoprim11 claims
  2. Valganciclovir Hcl11 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): 83.5 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.

  1. Qualityout of 100 · 30% of the final score81.8
  2. Costout of 100 · 30%63.3
  3. Promoting interoperabilityout of 100 · 25%100.0
  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 one group practice

  1. Fairview Express CareMinneapolis, MN

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

Carolyn R. Firth among 3,335 family nurse practitioner records in Minnesota

Carolyn R. Firth, NP is one of 3,335 family nurse practitioner records with a practice address in Minnesota. 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 2011, is newer than 30% of them.

  • NPI issued2011 · 30% of these records are older, 67% newer
  • In a Medicare fileYes · 70% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated2009 · median 2018 among the 1,909 with a school on file
  • Record last updated2022 · 50% 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 Minnesota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

623 family nurse practitioner records list a practice address in Minneapolis

They are 623 of the 22,918 NPPES records with a practice address in Minneapolis, and 3,335 family nurse practitioner records in Minnesota.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Elizabeth Grant, MSN, FNP-CMinneapolis, MN 554541447814132
  2. Katrina Hannah, APRN, CNPMinneapolis, MN 554541013589951
  3. Leisa Krull, CNP, PMHNP-BC,FNP-BCMinneapolis, MN 554541023881935
  4. Fardowsa Osman, FNPMinneapolis, MN 554541023729381
  5. Alayna Pine, C.N.P.Minneapolis, MN 554541750610523
  6. Jonathan Popko, CNPMinneapolis, MN 554541558080929
  7. Colie Purpur, MSN, APRN, FNP-CMinneapolis, MN 554541477262459
  8. Barbara Schmitz, FNP-CMinneapolis, MN 554541558802660

Common questions

What is Carolyn R. Firth, NP's NPI number?

Carolyn R. Firth, NP's National Provider Identifier (NPI) is 1255638649, issued on Feb 21, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Carolyn R. Firth, NP located?

The NPPES record lists a practice address at 2450 Riverside Ave, Minneapolis, MN, 55454. Phone: (612) 672-6000. Providers update this record themselves, so call before visiting.

How can I verify Carolyn R. Firth, NP's license?

NPPES lists Minnesota license number CNP4886, as entered by the provider. Search the Minnesota board that licenses this profession; the NPPES record confirms identity only.

How much does Carolyn R. Firth, NP prescribe under Medicare Part D?

In 2024, Carolyn R. Firth, NP had 94 Medicare Part D claims for 22 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.

What is Carolyn R. Firth, NP's MIPS final score?

The 2023 MIPS final score is 83.5 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.