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

DR. MARK STUART SIMMONS MD
NPI 1811092760
Internal Medicine in Tuscon, AZ

Active since September 14, 2006PECOS EnrolledAccepts Medicare Assignment
3870 W. RIVER RD, #126, TUSCON, AZ 85741(520) 219-6616(970) 266-3660 Get Directions Write a Review

NPPES record last updated: September 26, 2024. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Sep 26, 2024, Mar 22, 2016 (2 updates tracked since 2016).

About Dr. Mark Stuart Simmons Md NPPES

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

DR. MARK STUART SIMMONS MD (NPI 1811092760) is an individual internal medicine provider in Tuscon, Arizona, licensed in Colorado (37923) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1992).

NPPES Registry Identity

NPI1811092760
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. MARK STUART SIMMONSCredential: MD
Location Address3870 W. RIVER RD, #126Tuscon, AZ 85741
Mailing Address6531 W. Antler Bend PlMarana, AZ 85658 · (970) 213-8123 · Fax (970) 266-3660
Phone(520) 219-6616
Fax(970) 266-3660
Sole ProprietorNo
Medical School CMSOtherGraduated 1992
Enumeration DateSeptember 14, 2006
Last NPPES UpdateSeptember 26, 20242 updates tracked since enumeration
✔ NPI 1811092760 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CO · 37923
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.
Also ListedPediatricsTaxonomy 208000000X · License 37923 (CO)
3870 W. RIVER RD, Tuscon, AZ 85741
Open in Google Maps ↗

Other Identifiers 2

Medicaid81353871CO
Other110198245CO · Rr Medicare Pin

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross Blue Shield of Arizona, Medica.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. Mark Stuart Simmons 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 ID9830164144
PECOS Enrollment IDI20240716000330
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.

Areas of Expertise CMS Part B claims 6

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 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.
164 services148 patients
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.
105 services100 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.
69 services69 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
57 services57 patients
Automated urinalysis test 81003
An automated urinalysis test is a routine examination that checks your urine for various substances. It can help identify potential health issues such as kidney problems or diabetes. The test uses a machine to analyze a small urine sample, providing quick and accurate results.
16 services16 patients
Detection test by immunoassay with direct visual observation for streptococcus, group a (strep) 87880
A detection test by immunoassay for Group A Strep is a quick procedure to identify a bacterial infection in your throat. It involves taking a throat swab and applying it to a test strip, which changes color if Strep bacteria are present.
13 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 85741 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 8

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
10 suppliers14 claims51 services$3.32 avg. paid by Medicare
Face mask interface, replacement for full face mask, each A7031
DME-Other DME · category DE001N
3 suppliers12 claims35 services$29.75 avg. paid by Medicare
Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap A7034
DME-Other DME · category DE001N
5 suppliers11 claims11 services$54.78 avg. paid by Medicare
Tubing used with positive airway pressure device A7037
DME-Other DME · category DE001N
4 suppliers13 claims13 services$15.02 avg. paid by Medicare
Filter, disposable, used with positive airway pressure device A7038
DME-Other DME · category DE001N
5 suppliers18 claims108 services$2.31 avg. paid by Medicare
Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
2 suppliers38 claims38 services$16.56 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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 Mark Simmons's NPI number?

The NPI number for Mark Simmons is 1811092760. It was assigned to this individual provider in the NPPES registry on September 14, 2006.

Where is Mark Simmons located?

Mark Simmons practices at 3870 W. River Rd #126, Tuscon, AZ 85741. The listed phone number is (520) 219-6616.

What is Mark Simmons's specialty?

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

Is Mark Simmons enrolled in Medicare?

Yes. Mark Simmons 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.

What insurance does Mark Simmons accept?

Health plans from Blue Cross Blue Shield of Arizona and Medica list Mark Simmons 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 Mark Simmons was last updated on September 26, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 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.