NPPES file of Aug 9, 2026

George Montgomery Oehlsen, DO

Internal Medicine Physician · Las Vegas, NV

George Montgomery Oehlsen, DO is an internal medicine physician with a practice address in Las Vegas, Nevada, and NPI 1750328084, issued on Jun 2, 2006. Check the license (Nevada 706, 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
1750328084
Name
George Montgomery Oehlsen
Credential
DO
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
706 NV
Self-reported in NPPES; status is on the state search
Practice location
61 N. Nellis Blvd., Las Vegas, NV 89110
Phone
(702) 383-6240
Enumerated
Jun 2, 2006
Record last updated
Oct 16, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(702) 459-8586
Medicare enrollment
Enrolled (PECOS I20100726000428); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 61 N. Nellis Blvd.

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

  1. Carlos Ezpeleta, M.D.Internal Medicine Physician1265432793
  2. Amelia Porciuncula, NP-CFamily Nurse Practitioner1568970325
  3. Charity Rosendo, NP-CFamily Nurse Practitioner1851585855

Verify George Montgomery Oehlsen 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 706
    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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98% fewer Medicare Part D claims than the average internal medicine physician in 2024

70 Medicare Part D claims for 49 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. George Oehlsen70
  2. Specialty average3,176

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. University Medical Center OF Southern NevadaLas Vegas, NV

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

George Montgomery Oehlsen among 1,229 internal medicine physician records in Nevada

George Montgomery Oehlsen, 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 2006, is newer than 7% of them.

  • NPI issued2006 · 7% of these records are older, 59% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated1993 · median 2006 among the 772 with a school on file
  • Record last updated2018 · 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. Maria Tessie Beduya-Princer, M.D.Las Vegas, NV 891101649249608
  2. Dino Lorenzo Dy, MDLas Vegas, NV 891101427672765
  3. Carlos Ezpeleta, M.D.Las Vegas, NV 891101265432793
  4. Elan Gada, M.D.Las Vegas, NV 891101376837823
  5. Maria Manalo, MDLas Vegas, NV 891101730121096
  6. Tricia Murphy, M.D.Las Vegas, NV 891101215996764
  7. Alejandro Ramirez, M.D.Las Vegas, NV 891101710237847
  8. Katrina Rathjen, DOLas Vegas, NV 891101316434293

Common questions

What is George Montgomery Oehlsen, DO's NPI number?

George Montgomery Oehlsen, DO's National Provider Identifier (NPI) is 1750328084, issued on Jun 2, 2006. An NPI identifies a provider in billing; it is not a license.

Where is George Montgomery Oehlsen, DO located?

The NPPES record lists a practice address at 61 N. Nellis Blvd., Las Vegas, NV, 89110. Phone: (702) 383-6240. Providers update this record themselves, so call before visiting.

How can I verify George Montgomery Oehlsen, DO's license?

NPPES lists Nevada license number 706, 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 George Montgomery Oehlsen, DO prescribe under Medicare Part D?

In 2024, George Montgomery Oehlsen, DO had 70 Medicare Part D claims for 49 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.