NPPES file of Aug 9, 2026

Mark Serra, DO

Emergency Medicine Physician · Libby, MT

Mark Serra, DO is an emergency medicine physician with a practice address in Libby, Montana, and NPI 1225229347, issued on Aug 5, 2007. Check the license (Montana MED-PHYS-LIC-12100, as entered in NPPES) on the Montana Board of Medical Examiners; 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
1225229347
Name
Mark Serra
Credential
DO
Primary taxonomy
Emergency Medicine Physician 207P00000X
License numbers
MED-PHYS-LIC-12100 MT
L1169747 MI
Self-reported in NPPES; status is on the state search
Practice location
350 Louisiana Avenue, Libby, MT 59923
Phone
(406) 283-7000
Enumerated
Aug 5, 2007
Record last updated
Oct 9, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(406) 293-7931
Medicare enrollment
Enrolled (PECOS I20140818002792); 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 Mark Serra in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMontana Board of Medical Examiners
    Search for license MED-PHYS-LIC-12100
    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
Open the Montana license search

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38% fewer Medicare Part D claims than the average emergency medicine physician in 2024

140 Medicare Part D claims for 97 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 20 claims were for opioids.

  1. Mark Serra140
  2. Specialty average226

Most prescribed

  1. Methylprednisolone16 claims
  2. Oxycodone Hcl15 claims
  3. Ondansetron Odt11 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): 89.8 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.

  1. Qualityout of 100 · 30% of the final score81.0
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%94.0
  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. St Johns Lutheran Hospital IncLibby, MT

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

Mark Serra among 243 emergency medicine physician records in Montana

Mark Serra, DO is one of 243 emergency medicine physician records with a practice address in Montana. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 45% of them.

  • NPI issued2007 · 45% of these records are older, 48% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2005 · median 2009 among the 144 with a school on file
  • Record last updated2013 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Montana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Emergency Medicine Physician providers in Montana

There are 243 emergency medicine physician records in Montana.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Erica Diede, M.D.Whitefish, MT 599371073891800
  2. James Dusing, MDWhitefish, MT 599371740364082
  3. John Kim, M.D.Whitefish, MT 599371124384706
  4. Betty Kuffel, MDWhitefish, MT 599371538241849
  5. Ashleigh Magill, M.D.Whitefish, MT 599371477879385
  6. H. Kenneth McFadden, MDWhitefish, MT 599371548239015
  7. Scott Rundle, MDWhitefish, MT 599371891749347
  8. Rodney VaughtWhitefish, MT 599371245209709

Common questions

What is Mark Serra, DO's NPI number?

Mark Serra, DO's National Provider Identifier (NPI) is 1225229347, issued on Aug 5, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Mark Serra, DO located?

The NPPES record lists a practice address at 350 Louisiana Avenue, Libby, MT, 59923. Phone: (406) 283-7000. Providers update this record themselves, so call before visiting.

How can I verify Mark Serra, DO's license?

NPPES lists Montana license number MED-PHYS-LIC-12100, as entered by the provider. Search the Montana Board of Medical Examiners at https://ebiz.mt.gov/POL/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Mark Serra, DO prescribe under Medicare Part D?

In 2024, Mark Serra, DO had 140 Medicare Part D claims for 97 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.

What is Mark Serra, DO's MIPS final score?

The 2023 MIPS final score is 89.8 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.