DR. DOUGLAS MILAN MAREADY M.D.
NPI 1689876252
Internal Medicine in Mesa, AZ

Active since June 05, 2007PECOS EnrolledAccepts Medicare Assignment
4135 S POWER RD STE 113, MESA, AZ 85212(480) 626-2444(480) 409-2987 Get Directions Write a Review

NPPES record last updated: January 10, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jan 10, 2026, Feb 3, 2025, Sep 25, 2020 and 3 more (6 updates tracked since 2018).

About Dr. Douglas Milan Maready M.d. NPPES

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

DR. DOUGLAS MILAN MAREADY M.D. (NPI 1689876252) is an individual internal medicine provider in Mesa, Arizona, licensed in Arizona (54000) and active in the NPI registry since June 2007. He is enrolled in Medicare PECOS, maintains a secondary practice location in Phoenix, and is a graduate of Tulane University School Of Medicine (2006).

NPPES Registry Identity

NPI1689876252
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. DOUGLAS MILAN MAREADYCredential: M.D.
Location Address4135 S POWER RD STE 113Mesa, AZ 85212-3625
Mailing AddressPo Box 88747Milwaukee, WI 53288-8747 · (480) 945-6777 · Fax (480) 257-7310
Fax(480) 409-2987
Sole ProprietorNo
Medical School CMSTulane University School Of MedicineGraduated 2006
Enumeration DateJune 5, 2007
Last NPPES UpdateJanuary 10, 20266 updates tracked since enumeration
NPPES CertifiedJanuary 10, 2026
NPI 1689876252 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 · 54000
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.
4135 S POWER RD STE 113, Mesa, AZ 85212

Secondary Practice Location 1

Location 14455 E Camelback Rd Ste D155Phoenix, AZ 85018-2888 · Phone (480) 626-2444 · Fax (480) 409-2987

Other Identifiers 2

Medicaid331408AZ
Other1689876252Npi

Accepted 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. Douglas Milan Maready M.d. 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 ID4082761598
PECOS Enrollment IDI20170913003951
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 29

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.
823 services324 patients
Complex chronic care management services for two or more chronic conditions, each additional 60 minutes of clinical staff time directed by health care professional, per calendar month 99489
Complex chronic care management is a service for patients with multiple chronic conditions. It involves an additional 60 minutes per month of clinical staff time directed by a healthcare professional. This service assists in managing your health conditions effectively.
494 services46 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.
328 services207 patients
Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month 99490
Chronic care management services involve a healthcare professional directing clinical staff in managing your chronic conditions. This includes the first 20 minutes per month of services like medication management, care coordination, and health monitoring to help improve your health and quality of life.
197 services68 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.
166 services166 patients
Annual depression screening, 5 to 15 minutes G0444
An annual depression screening is a short, routine evaluation to check for signs of depression. It involves answering a series of questions about your feelings, thoughts, and behaviors. The process takes about 15 minutes and helps detect depression early for better management.
166 services166 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 85212 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 10

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 suppliers28 claims75 services$6.45 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
8 suppliers12 claims17 services$1.07 avg. paid by Medicare
Tubing with integrated heating element for use with positive airway pressure device A4604
DME-Other DME · category DE001N
8 suppliers17 claims17 services$34.16 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
3 suppliers11 claims11 services$52.00 avg. paid by Medicare
Headgear used with positive airway pressure device A7035
DME-Other DME · category DE001N
6 suppliers12 claims12 services$17.24 avg. paid by Medicare
Filter, disposable, used with positive airway pressure device A7038
DME-Other DME · category DE001N
5 suppliers15 claims77 services$2.17 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 6

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

Physician Assistant
4135 S POWER RD STE 113
MESA, AZ 85212
Physician Assistant (Medical)
4135 S POWER RD STE 113
MESA, AZ 85212
Internal Medicine
4135 S POWER RD STE 113
MESA, AZ 85212
Physician Assistant
4135 S POWER RD STE 113
MESA, AZ 85212
Physician Assistant
4135 S POWER RD STE 113
MESA, AZ 85212
Clinic/Center (Rehabilitation, Substance Use Disorder)
4135 S POWER RD STE 113
MESA, AZ 85212

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 Douglas Maready's NPI number?

The NPI number for Douglas Maready is 1689876252. It was assigned to this individual provider in the NPPES registry on June 5, 2007.

Where is Douglas Maready located?

Douglas Maready practices at 4135 S Power Rd Ste 113, Mesa, AZ 85212. The listed phone number is (480) 626-2444.

What is Douglas Maready's specialty?

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

Is Douglas Maready enrolled in Medicare?

Yes. Douglas Maready 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 Douglas Maready accept?

Health plans from Ambetter from Arizona Complete Health, Antidote Health Plan of Arizona, Inc., Blue Cross Blue Shield of Arizona and UnitedHealthcare list Douglas Maready 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 Douglas Maready was last updated on January 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.