NPPES file of Aug 9, 2026

Hayden Jacob Maag, DO

Emergency Medicine Physician · Las Vegas, NV

Hayden Jacob Maag, DO is an emergency medicine physician with a practice address in Las Vegas, Nevada, and NPI 1336643196, issued on Mar 19, 2018. Check the license (Nevada DO2808, as entered in NPPES) on the Nevada State 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
1336643196
Name
Hayden Jacob Maag
Credential
DO
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
DO2808 NV
Self-reported in NPPES; status is on the state search
Practice location
3100 N. Tenaya Way, Las Vegas, NV 89128
Phone
(262) 751-6857
Enumerated
Mar 19, 2018
Record last updated
Nov 16, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20201117001831); accepts Medicare assignment
Medical or professional school
Lincoln Memorial University Medical Department, 2018
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 3100 N. Tenaya Way

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

  1. Robert De MonteEmergency Medicine Physician1225788276
  2. Jordan Downey, DOEmergency Medicine Physician1851928915
  3. Abdul Gader GherianiGastroenterology Physician1043770654
  4. Jackson HoekstraStudent in an Organized Health Care Education/Training Program1124778022
  5. Sara Jaratanian, MDStudent in an Organized Health Care Education/Training Program1013667039
  6. Kimball Kaufman, DOInternal Medicine Physician1215431077

Verify Hayden Jacob Maag in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNevada State Board of Medical Examiners
    Search for license DO2808
    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 Nevada 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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23% more Medicare Part D claims than the average emergency medicine physician in 2024

278 Medicare Part D claims for 202 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.

  1. Hayden Maag278
  2. Specialty average226

Most prescribed

  1. Meloxicam91 claims
  2. Ondansetron Hcl33 claims
  3. Cephalexin24 claims
  4. Cefdinir15 claims
  5. Albuterol Sulfate Hfa14 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 MIPS final score for 2023 (Medicare payment program): 88.5 of 100

The Merit-based Incentive Payment System score is reported for this clinician. 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 score81.4
  2. Costout of 100 · 30%62.5
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

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

Bills Medicare through one group practice

  1. Fremont Emergency Services Scherr LtdLas Vegas, NV

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

Hayden Jacob Maag among 575 emergency medicine physician records in Nevada

Hayden Jacob Maag, DO is one of 575 emergency medicine physician records with a practice address in Nevada. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 71% of them.

  • NPI issued2018 · 71% of these records are older, 24% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated2018 · median 2014 among the 366 with a school on file
  • Record last updated2021 · 45% 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 Nevada 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 Nevada

There are 575 emergency medicine physician records in Nevada.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Eric Anderson, MDLas Vegas, NV 891281619979028
  2. Andrew Behl, DOLas Vegas, NV 891281760458053
  3. Todd Christensen, MDLas Vegas, NV 891281982606687
  4. Allen Erisman, D.O.Las Vegas, NV 891281245233485
  5. Kimberly Fletcher, MDLas Vegas, NV 891281598767204
  6. John Henner, DOLas Vegas, NV 891281376545954
  7. Heidi Kabler, MDLas Vegas, NV 891281134107519
  8. Frank Lee, DOLas Vegas, NV 891281922007210

Common questions

What is Hayden Jacob Maag, DO's NPI number?

Hayden Jacob Maag, DO's National Provider Identifier (NPI) is 1336643196, issued on Mar 19, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Hayden Jacob Maag, DO located?

The NPPES record lists a practice address at 3100 N. Tenaya Way, Las Vegas, NV, 89128. Phone: (262) 751-6857. Providers update this record themselves, so call before visiting.

How can I verify Hayden Jacob Maag, DO's license?

NPPES lists Nevada license number DO2808, as entered by the provider. Search the Nevada State Board of Medical Examiners at https://medboard.nv.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Hayden Jacob Maag, DO prescribe under Medicare Part D?

In 2024, Hayden Jacob Maag, DO had 278 Medicare Part D claims for 202 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.

What is Hayden Jacob Maag, DO's MIPS final score?

The 2023 MIPS final score is 88.5 of 100. 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.