NPPES file of Aug 9, 2026

Robert Lane Tassin, MD

Emergency Medicine Physician · Sierra Vista, AZ

Robert Lane Tassin, MD is an emergency medicine physician with a practice address in Sierra Vista, Arizona, and NPI 1659456333, issued on Oct 25, 2006. Check the license (Arizona 25048, as entered in NPPES) on the Arizona Medical Board; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1659456333
Name
Robert Lane Tassin
Credential
MD
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
25048 AZ
Self-reported in NPPES; status is on the state search
Practice location
300 EL Camino Real, Sierra Vista, AZ 85635
Phone
(800) 880-8800
Enumerated
Oct 25, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Medicaid ID
425878 AZ
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
Download card Updates feed

8 nearest emergency medicine physician records → All 1,494 in Arizona → Look up another NPI →

Also registered at 300 EL Camino Real

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

  1. Everett Castle, MDEmergency Medicine Physician1457375388
  2. Marilyn HarperRegistered Nurse1750528840
  3. Amy Heise, M.A. CCC-SLPSpeech-Language Pathologist1215044359
  4. Julie Henderson, R.D.Registered Dietitian1013095967
  5. Tahera Islam, RDRegistered Dietitian1265747687
  6. Susan Knowles, NPNurse Practitioner1952340457

Verify Robert Lane Tassin in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 25048    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 Arizona 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.

Robert Lane Tassin among 1,494 emergency medicine physician records in Arizona

Robert Lane Tassin, MD is one of 1,494 emergency medicine physician records with a practice address in Arizona. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 10% of them.

  • NPI issued2006 · 10% of these records are older, 62% newer
  • In a Medicare fileNo · 79% of these records are
  • In the CMS Doctors and Clinicians fileNo · 55% of these records are
  • Record last updated2007 · 55% 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 Arizona 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 Arizona

There are 1,494 emergency medicine physician records in Arizona. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 1,494 in Arizona → Every provider in Sierra Vista → Emergency Medicine Physician nationwide →

The 8 emergency medicine physician records with the nearest ZIP codes

  1. John Barberii, MDSierra Vista, AZ 856351629163068
  2. Everett Castle, MDSierra Vista, AZ 856351457375388
  3. Vincent Guarino, MDSierra Vista, AZ 856351609304633
  4. Michael McLaughlin, M.D.Sierra Vista, AZ 856351124448683
  5. Scott Megna, M.D.Sierra Vista, AZ 856351881783322
  6. Paul CastleSells, AZ 856341265095236
  7. Merlin Curry, MD, EMT-PSells, AZ 856341811334907
  8. John Fahlberg, M.D.Vail, AZ 856411144543737

Common questions

What is Robert Lane Tassin, MD's NPI number?

Robert Lane Tassin, MD's National Provider Identifier (NPI) is 1659456333, issued on Oct 25, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Robert Lane Tassin, MD located?

The NPPES record lists a practice address at 300 EL Camino Real, Sierra Vista, AZ, 85635. Phone: (800) 880-8800. Providers update this record themselves, so call before visiting.

How can I verify Robert Lane Tassin, MD's license?

NPPES lists Arizona license number 25048, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.