Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

KAREN LEE DUMARS MD
NPI 1417059346
Psychiatry & Neurology - Neurology in Palos Verdes Estates, CA

Active since September 01, 2006PECOS Enrolled
75/100
CMS Quality Rating
718 VIA LA CUESTA, PALOS VERDES ESTATES, CA 90274(800) 348-4565(888) 203-4247 Get Directions Write a Review

NPPES record last updated: October 20, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: May 7, 2025, Jan 9, 2025, Dec 6, 2023 and 2 more (5 updates tracked since 2022).

About Karen Lee Dumars Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

KAREN LEE DUMARS MD (NPI 1417059346) is an individual neurology provider in Palos Verdes Estates, California, licensed in California (A81054) and active in the NPI registry since September 2006. She is enrolled in Medicare PECOS, is affiliated with Saint Thomas Hospital For Spinal Surgery, and maintains a secondary practice location in Denver.

NPPES Registry Identity

NPI1417059346
Entity TypeIndividualFemale
Primary Taxonomy2084N0400X
Provider Legal NameKAREN LEE DUMARSCredential: MD
Location Address718 VIA LA CUESTAPalos Verdes Estates, CA 90274-1472
Mailing Address3 Maryland Farms Ste 200Brentwood, TN 37027-5780 · (800) 348-4565
Fax(888) 203-4247
Sole ProprietorNo
Medical School CMSTulane University School Of MedicineGraduated 2001
Enumeration DateSeptember 1, 2006
Last NPPES UpdateOctober 20, 20265 updates tracked since enumeration
NPPES CertifiedOctober 20, 2026
✔ NPI 1417059346 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychiatry & Neurology · NeurologyAllopathic & Osteopathic Physicians
Taxonomy Code2084N0400X
Licenses✔ Licensed in CA · A81054✔ Licensed in GA · 94219✔ Licensed in CO · CDR.0003118✔ Licensed in NM · MD2023-1467✔ Licensed in FL · ME158868
Definition
A Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures.
Also ListedNeurological SurgeryTaxonomy 207T00000X · License A81054 (CA)
718 VIA LA CUESTA, Palos Verdes Estates, CA 90274

Secondary Practice Location 1

Location 1777 Bannock StDenver, CO 80204-4597 · Phone (303) 436-4949 · Fax (303) 602-6190

Other Identifiers 1

Medicaid00A810540CA

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Karen Lee Dumars Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7113938978
PECOS Enrollment IDI20060509000368
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

6

Medicare enrollment records show Karen Dumars reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Neurology
1830 BLAKE AVE STE 101
Glenwood Springs, CO 81601
  • Reassigned Medicare billing, Colorado enrollment
  • 6 clinicians in this Medicare group
General Practice
777 BANNOCK ST
Denver, CO 80204
  • Reassigned Medicare billing, Colorado enrollment
  • 2,259 clinicians in this Medicare group
Clinic/Center
420 PIEDMONT AVE
Piedmont, MO 63957
  • Reassigned Medicare billing, Missouri enrollment
  • 595 clinicians in this Medicare group
Neurology
3 MARYLAND FARMS STE 200
Brentwood, TN 37027
  • Reassigned Medicare billing, California enrollment
  • 3 clinicians in this Medicare group
Neurology
3 MARYLAND FARMS STE 200
Brentwood, TN 37027
  • Reassigned Medicare billing, California enrollment
  • 3 clinicians in this Medicare group
General Acute Care Hospital
317 WESTERN BLVD
Jacksonville, NC 28546
  • Reassigned Medicare billing, North Carolina enrollment
  • 137 clinicians in this Medicare group

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 10

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Continuous intraoperative neurophysiology monitoring, from outside the operating room (remote or nearby), per patient, (attention directed exclusively to one patient) each 15 minutes (list in addition to primary procedure) G0453
Continuous intraoperative neurophysiology monitoring is a service where a specialist oversees your nervous system's function during surgery, from a nearby or remote location. This is done every 15 minutes and is focused solely on you. It helps ensure surgical safety by identifying any potential nervous system changes promptly.
1,414 services691 patients
Placement of skin electrodes and measurement of stimulated sites on arms and legs 95938
This procedure involves placing small pads (electrodes) on your arms and legs. These electrodes send gentle electric signals to specific areas, and the responses are measured. This helps assess the health of your nerves and muscles.
815 services810 patients
Needle measurement of electrical activity in arm, leg, trunk or head muscles, limited study 95870
This procedure, known as an electromyography (EMG), involves using a needle to measure electrical activity in your muscles. It can help diagnose conditions affecting nerves or muscles. It's a limited study, meaning only specific muscles in the arm, leg, trunk, or head are examined.
763 services371 patients
Placement of skin electrodes and measurement of central motor stimulation in arms and legs 95939
This procedure involves placing small patches (electrodes) on your skin over your arms and legs. These electrodes send harmless electrical signals to your muscles. The response is measured to assess the health and function of your nerves and muscles.
446 services443 patients
Needle measurement of electrical activity in arm or leg muscles, 2 extremities 95861
This procedure, known as an electromyography (EMG), involves inserting a small needle into your arm or leg muscles to measure their electrical activity. It helps diagnose conditions affecting nerves or muscles. It's generally painless, though you may feel some discomfort.
199 services198 patients
Measurement of brain wave activity (eeg) outside the brain during surgery 95955
An EEG (Electroencephalogram) during surgery monitors brain activity. Electrodes on the scalp record brain wave patterns, helping doctors ensure the brain is functioning normally throughout the procedure.
105 services103 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Saint Thomas Hospital For Spinal Surgery

Acute Care Hospitals · Nashville, TN
OwnershipVoluntary non-profit - Other
CMS Certification Number440218
Location2011 Murphy AvenueNashville, TN 37203 · Davidson County

Providence St Peter Hospital

Acute Care Hospitals · Olympia, WA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number500024
Location413 Lilly Road NEOlympia, WA 98506 · Thurston County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90274 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$142.39 typical visit price
range $62.96 – $187.60
Typical copayment $35.59 (range $15.74 – $46.90)
Most-billed visit code 99204
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

75/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Karen Dumars's NPI number?

The NPI number for Karen Dumars is 1417059346. It was assigned to this individual provider in the NPPES registry on September 1, 2006.

Where is Karen Dumars located?

Karen Dumars practices at 718 Via La Cuesta, Palos Verdes Estates, CA 90274. The listed phone number is (800) 348-4565.

What is Karen Dumars's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.

Is Karen Dumars enrolled in Medicare?

Yes. Karen Dumars is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Karen Dumars's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Karen Dumars reassigns Medicare benefits to 6 organizations: Valley View Hospital Association (Glenwood Springs, CO), Denver Health And Hospital Authority (Denver, CO), Saint Francis Medical Center (Piedmont, MO), Remote Neuromonitoring Physicians ,pc (Brentwood, TN), Sentient Physicians, P.C. (Brentwood, TN) and 1 more organization, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Karen Dumars's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Karen Dumars accept?

Health plans from BridgeSpan Health Company, Cigna Healthcare, Florida Blue (BlueCross BlueShield FL), Florida Blue HMO (a BlueCross BlueShield FL company) and Premera Blue Cross Blue Shield of Alaska and 1 other insurer list Karen Dumars as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Karen Dumars affiliated with any hospitals?

According to CMS data, Karen Dumars is affiliated with Saint Thomas Hospital For Spinal Surgery and Providence St Peter Hospital.

When was this NPI record last updated?

The NPPES record for Karen Dumars was last updated on October 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.