NPPES file of Aug 9, 2026

Karen L. Stern, M.D.

Urology Physician · Phoenix, AZ

Karen L. Stern, M.D. is a urology physician with a practice address in Phoenix, Arizona, and NPI 1932461647, issued on Jun 10, 2012. Check the license (Arizona 49031, as entered in NPPES) on the Arizona Medical Board; 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
1932461647
Name
Karen L. Stern
Credential
M.D.
Primary taxonomy
Urology Physician 208800000X
License numbers
49031 AZ
R73305 AZ
Self-reported in NPPES; status is on the state search
Practice location
5777 E Mayo Blvd, Phoenix, AZ 85054
Phone
(480) 342-2951
Enumerated
Jun 10, 2012
Record last updated
Sep 3, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20140714000990); accepts Medicare assignment
Medical or professional school
University Of Arizona College Of Medicine, 2012
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 5777 E Mayo Blvd

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

  1. Oluseyi AbidoyeHematology & Oncology Physician1780211029
  2. Neera Agrwal, M.D.Internal Medicine Physician1992780522
  3. Maria Aguilar, MDNeurology Physician1518924190
  4. Sophia Aguirre, MDEmergency Medicine Physician1285384859
  5. Erin Alexander, MS, MSGenetic Counselor (M.S.)1487541595
  6. Nneoma Alozie, MDInternal Medicine Physician1912642695

Verify Karen L. Stern in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 49031
    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.

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97% fewer Medicare Part D claims than the average urology physician in 2024

40 Medicare Part D claims for 27 beneficiaries, against an average of 1,340 among the 10,782 providers of this specialty who prescribed in Part D.

  1. Karen Stern40
  2. Specialty average1,340

Most prescribed

  1. Tamsulosin Hcl12 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 practice group's MIPS final score for 2023 (Medicare payment program): 78.6 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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 score69.1
  2. Costout of 100 · 30%59.6
  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, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $17,816.55

27 payments; by number, the most common kind was food and beverage; the largest payer was Boston Scientific Corporation. The 9,340 providers of this specialty with any payment received $3,800.04 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Karen Stern$17,817
  2. Specialty average$3,800

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. Mayo Clinic ArizonaScottsdale, AZ

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

Karen L. Stern among 277 urology physician records in Arizona

Karen L. Stern, M.D. is one of 277 urology 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. Its NPI, issued in 2012, is newer than 73% of them.

  • NPI issued2012 · 73% of these records are older, 25% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated2012 · median 2003 among the 192 with a school on file
  • Record last updated2020 · 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 208800000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Urology Physician providers in Arizona

There are 277 urology physician records in Arizona.

The 8 urology physician records with the nearest ZIP codes

  1. Andrew Amenyogbe, MDPhoenix, AZ 850541891674198
  2. Paul Andrews, M.D.Phoenix, AZ 850541710962345
  3. Jack Andrews, M.D.Phoenix, AZ 850541396190336
  4. Premal Desai, M.D.Phoenix, AZ 850541255371662
  5. Victoria Edmonds, MDPhoenix, AZ 850541235705344
  6. Murray Feldstein, M.D.Phoenix, AZ 850541669457297
  7. Robert Ferrigni, M.D.Phoenix, AZ 850541134104748
  8. Gwen Grimsby, M.D.Phoenix, AZ 850541740448703

Common questions

What is Karen L. Stern, M.D.'s NPI number?

Karen L. Stern, M.D.'s National Provider Identifier (NPI) is 1932461647, issued on Jun 10, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Karen L. Stern, M.D. located?

The NPPES record lists a practice address at 5777 E Mayo Blvd, Phoenix, AZ, 85054. Phone: (480) 342-2951. Providers update this record themselves, so call before visiting.

How can I verify Karen L. Stern, M.D.'s license?

NPPES lists Arizona license number 49031, 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.

How much does Karen L. Stern, M.D. prescribe under Medicare Part D?

In 2024, Karen L. Stern, M.D. had 40 Medicare Part D claims for 27 beneficiaries; the average among urology physician prescribers was 1,340. Part D covers Medicare prescriptions only.

What is Karen L. Stern, M.D.'s MIPS final score?

The 2023 MIPS final score is 78.6 of 100, reported for the practice group. 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.