1. Home
  2. Directory
  3. Arizona
  4. Scottsdale
  5. Internal Medicine
  6. NPI Profile

DR. BRIAN D MARKS D.O.
NPI 1013982883
Internal Medicine in Scottsdale, AZ

Active since February 23, 2006PECOS EnrolledAccepts Medicare AssignmentCLIA 03D2119953 · Waiver
5111 N SCOTTSDALE RD STE 158, SCOTTSDALE, AZ 85250(480) 949-7080(480) 675-9145 Get Directions Write a Review

NPPES record last updated: February 9, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jun 26, 2025, Apr 17, 2017 (2 updates tracked since 2017).

About Dr. Brian D Marks D.o. NPPES

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

DR. BRIAN D MARKS D.O. (NPI 1013982883) is an individual internal medicine provider in Scottsdale, Arizona, licensed in Arizona (2964) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS, holds a CLIA Waiver certificate valid through October 5, 2026, and is a graduate of Midwestern University, Chicago College Of Osteopathic Med (1992).

NPPES Registry Identity

NPI1013982883
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. BRIAN D MARKSCredential: D.O.
Location Address5111 N SCOTTSDALE RD STE 158Scottsdale, AZ 85250-7004
Mailing Address5111 N Scottsdale Rd Ste 158Scottsdale, AZ 85250-7004 · (480) 949-7080 · Fax (480) 675-9145
Phone(480) 949-7080
Fax(480) 675-9145
Sole ProprietorNo
Medical School CMSMidwestern University, Chicago College Of Osteopathic MedGraduated 1992
Enumeration DateFebruary 23, 2006
Last NPPES UpdateFebruary 9, 20262 updates tracked since enumeration
NPPES CertifiedFebruary 9, 2026
✔ NPI 1013982883 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in AZ · 2964
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
5111 N SCOTTSDALE RD STE 158, Scottsdale, AZ 85250
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include UnitedHealthcare.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Brian D Marks D.o. 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 ID7517992563
PECOS Enrollment IDI20050928001361
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.

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 03D2119953

Dr Brian Marks Do PC Dba Desert Breeze Internal Medicine · Scottsdale, AZ
Active · expires Oct 5, 2026
CLIA Number03D2119953
Laboratory TypePhysician Office
Certificate Effective DateOctober 6, 2024
Certificate Expiration DateOctober 5, 2026
Laboratory DirectorBrian D. Marks
Laboratory Phone(480) 949-7080
Laboratory LocationDr Brian Marks Do PC Dba Desert Breeze Internal Medicine5111 N Scottsdale Rd Ste 158, Scottsdale, AZ 85250
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Areas of Expertise CMS Part B claims 5

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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
404 services149 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
125 services125 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
54 services40 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000
An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.
13 services11 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 85250 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
$127.71 typical visit price
range $55.44 – $168.60
Typical copayment $31.92 (range $13.86 – $42.15)
Most-billed visit code 99204
Established Patient
$98.00 typical visit price
range $17.72 – $137.41
Typical copayment $24.50 (range $4.43 – $34.35)
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.

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
12 suppliers24 claims76 services$6.06 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
7 suppliers11 claims20 services$1.11 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

BRIAN D MARKS DO PC
Internal Medicine
5111 N SCOTTSDALE RD STE 158
SCOTTSDALE, AZ 85250
Maricopa County (480) 949-7080

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 Brian Marks's NPI number?

The NPI number for Brian Marks is 1013982883. It was assigned to this individual provider in the NPPES registry on February 23, 2006.

Where is Brian Marks located?

Brian Marks practices at 5111 N Scottsdale Rd Ste 158, Scottsdale, AZ 85250. The listed phone number is (480) 949-7080.

What is Brian Marks's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Brian Marks enrolled in Medicare?

Yes. Brian Marks 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.

Does Brian Marks hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 03D2119953) is associated with this NPI, valid through October 5, 2026. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

What insurance does Brian Marks accept?

Health plans from UnitedHealthcare list Brian Marks 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.

When was this NPI record last updated?

The NPPES record for Brian Marks was last updated on February 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months 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.