NPPES file of Aug 9, 2026

Heather Tadayon, DO

Internal Medicine Physician · Las Vegas, NV

Heather Tadayon, DO is an internal medicine physician with a practice address in Las Vegas, Nevada, and NPI 1780854398, issued on Mar 11, 2008. Check the license (Nevada DO1550, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1780854398
Name
Heather Tadayon
Credential
DO
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
DO1550 NV
Self-reported in NPPES; status is on the state search
Practice location
2720 N Tenaya Way, Las Vegas, NV 89128
Phone
(702) 954-7678
Enumerated
Mar 11, 2008
Record last updated
Nov 18, 2025
Medicaid ID
1780854398 NV
Medicare enrollment
Enrolled (PECOS I20101217000600); 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.
Download card Updates feed

Also registered at 2720 N Tenaya Way

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

  1. Huma Ali, M.D.Internal Medicine Physician1477626273
  2. Michael Garcia, APRNNurse Practitioner1356736631
  3. Mohamed Hassan, M.B.B.S.Internal Medicine Physician1164928248
  4. Stephanie HollisterFamily Nurse Practitioner1245810324
  5. Wong Khaw, M.D.Hospitalist Physician1366762684
  6. Daniel Kim, MDInternal Medicine Physician1831168517

Verify Heather Tadayon 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 DO1550
    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

83% fewer Medicare Part D claims than the average internal medicine physician in 2024

527 Medicare Part D claims for 226 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 46 claims were for opioids.

  1. Heather Tadayon527
  2. Specialty average3,176

Most prescribed

  1. Amoxicillin-Clavulanate Potass30 claims
  2. Cefdinir29 claims
  3. Methylprednisolone28 claims
  4. Furosemide22 claims
  5. Oxycodone Hcl19 claims
  6. Pantoprazole Sodium19 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.

Bills Medicare through one group practice

  1. Optum Medical Group II Rhodes P CLas Vegas, NV

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

Heather Tadayon among 1,229 internal medicine physician records in Nevada

Heather Tadayon, DO is one of 1,229 internal medicine physician records with a practice address in Nevada. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 50% of them.

  • NPI issued2008 · 50% of these records are older, 46% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2007 · median 2006 among the 772 with a school on file
  • Record last updated2025 · 43% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Nevada practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

716 internal medicine physician records list a practice address in Las Vegas

They are 716 of the 65,269 NPPES records with a practice address in Las Vegas, and 1,229 internal medicine physician records in Nevada.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Sameer Abu-Samrah, MDLas Vegas, NV 891281770553802
  2. Savita Chander, MDLas Vegas, NV 891281447255773
  3. Anit Dua, MDLas Vegas, NV 891281134119712
  4. James Eells, MDLas Vegas, NV 891281679546139
  5. Kimball Huang, MDLas Vegas, NV 891281073502084
  6. Sassan Kaveh, M.D.Las Vegas, NV 891281851385447
  7. Anne Kristensen, M.D.Las Vegas, NV 891281861499733
  8. Mohammed Najmi, M.D.Las Vegas, NV 891281699775163

Common questions

What is Heather Tadayon, DO's NPI number?

Heather Tadayon, DO's National Provider Identifier (NPI) is 1780854398, issued on Mar 11, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Heather Tadayon, DO located?

The NPPES record lists a practice address at 2720 N Tenaya Way, Las Vegas, NV, 89128. Phone: (702) 954-7678. Providers update this record themselves, so call before visiting.

How can I verify Heather Tadayon, DO's license?

NPPES lists Nevada license number DO1550, 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 Heather Tadayon, DO prescribe under Medicare Part D?

In 2024, Heather Tadayon, DO had 527 Medicare Part D claims for 226 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

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.