NPPES file of Aug 9, 2026

Karen Stewart Jacks, MD

Hematology & Oncology Physician · Las Vegas, NV

Karen Stewart Jacks, MD is a hematology & oncology physician with a practice address in Las Vegas, Nevada, and NPI 1457577470, issued on Apr 18, 2007. Check the license (Nevada 11892, 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
1457577470
Name
Karen Stewart Jacks
Credential
MD
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License number
11892 NV
Self-reported in NPPES; status is on the state search
Practice location
9280 W Sunset RD Ste 100, Las Vegas, NV 89148
Phone
(702) 952-1251
Enumerated
Apr 18, 2007
Record last updated
Feb 29, 2024
Fax
(702) 952-1242
Medicare enrollment
Enrolled (PECOS I20071219000494); 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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Also registered at 9280 W Sunset RD Ste 100

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

  1. Valerie Chang, PA-CPhysician Assistant1285820886
  2. Oscar Goodman, MDHematology & Oncology Physician1568542108
  3. Vikas Gupta, MDHematology & Oncology Physician1770526964
  4. Jaren Lerner, MDHematology & Oncology Physician1356839013
  5. Raul Meoz, MDRadiation Oncology Physician1831108257
  6. Hamidreza Sanatinia, MDHematology & Oncology Physician1538178991

Verify Karen Stewart Jacks 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 11892
    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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89% more Medicare Part D claims than the average hematology & oncology physician in 2024

1,661 Medicare Part D claims for 297 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims. 48 claims were for opioids.

  1. Karen Jacks1,661
  2. Specialty average877

Most prescribed

  1. Letrozole343 claims
  2. Anastrozole129 claims
  3. Ibrance80 claims
  4. Tamoxifen Citrate73 claims
  5. Exemestane63 claims
  6. Gabapentin62 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): 96.1 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 score89.4
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  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).

Industry payments in 2024: $2,181.00

118 payments; by number, the most common kind was food and beverage; the largest payer was Daiichi Sankyo Inc. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Karen Jacks$2,181.00
  2. Specialty average$7,481.41

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Allison Curtis Kingsley Meoz Michael And Sanchez PCLas Vegas, NV

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

Karen Stewart Jacks among 88 hematology & oncology physician records in Nevada

Karen Stewart Jacks, MD is one of 88 hematology & oncology physician records with a practice address in Nevada. 84% 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 64% of them.

  • NPI issued2007 · 64% of these records are older, 24% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 73% of these records are
  • Graduated2000 · median 1995 among the 64 with a school on file
  • Record last updated2024 · 40% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Nevada practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hematology & Oncology Physician providers in Nevada

There are 88 hematology & oncology physician records in Nevada.

The 8 hematology & oncology physician records with the nearest ZIP codes

  1. Oscar Goodman, MDLas Vegas, NV 891481568542108
  2. Vikas Gupta, MDLas Vegas, NV 891481770526964
  3. Jaren Lerner, MDLas Vegas, NV 891481356839013
  4. Noel Rowan, MDLas Vegas, NV 891481205845658
  5. Hamidreza Sanatinia, MDLas Vegas, NV 891481538178991
  6. Ammar Yousif, MDLas Vegas, NV 891481457745531
  7. Henry Igid, MDLas Vegas, NV 891441003182106
  8. Khawaja Jahangir, M.D.Las Vegas, NV 891441184806663

Common questions

What is Karen Stewart Jacks, MD's NPI number?

Karen Stewart Jacks, MD's National Provider Identifier (NPI) is 1457577470, issued on Apr 18, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Karen Stewart Jacks, MD located?

The NPPES record lists a practice address at 9280 W Sunset RD Ste 100, Las Vegas, NV, 89148. Phone: (702) 952-1251. Providers update this record themselves, so call before visiting.

How can I verify Karen Stewart Jacks, MD's license?

NPPES lists Nevada license number 11892, 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 Karen Stewart Jacks, MD prescribe under Medicare Part D?

In 2024, Karen Stewart Jacks, MD had 1,661 Medicare Part D claims for 297 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.

What is Karen Stewart Jacks, MD's MIPS final score?

The 2023 MIPS final score is 96.1 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.