Dr. Andrew L. Maestas, MD
- Medicare services, 2024
- 271
- Medicare patients, 2024
- 15
- Part D claims, 2024
- 432
- Hospital affiliations
- 1
- State license
- 1
- Practice address
- 1501 North Williamson Avenue, Winslow, AZ 86047
- Practice phone
- Call (928) 289-4691
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Dr. Andrew L. Maestas is an internist in Winslow, Arizona
Dr. Maestas practices at Little Colorado Medical Center in Winslow, Arizona, part of Little Colorado Medical Center.
Dr. Maestas' NPI, 1659563773, was assigned on August 13, 2007. Dr. Maestas graduated from University of Wisconsin School of Medicine in 1982. Dr. Maestas holds Arizona license 21878.
- NPI
- 1659563773NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3173558350
- NPI enumeration date
- August 13, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (928) 289-4691
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 70
- Medical school graduation
- 1982
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Andrew L. Maestas practices at Little Colorado Medical Center in Winslow, Arizona
Dr. Maestas' primary practice is Little Colorado Medical Center, at 1501 North Williamson Avenue, Winslow, AZ 86047 in Navajo County. The practice phone is (928) 289-4691.
- Little Colorado Medical Center1501 North Williamson Avenue, Winslow, AZ 86047 · Navajo CountyPhone(928) 289-4691
Source: Dmand AI Affiliation Data
Dr. Andrew L. Maestas is affiliated with 3 sites of care
Dr. Maestas' primary practice is Little Colorado Medical Center in Winslow, Arizona, part of Little Colorado Medical Center. Dmand AI also links Dr. Maestas to 1 physician office and 1 government or correctional health site, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Andrew L. Maestas' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Maestas practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Little Colorado Medical Center | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Little Colorado Medical Center and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Andrew L. Maestas is one of 2,420 internists in Arizona
Internal medicine is Dr. Maestas' primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Maestas is licensed in Arizona.
Specialties and state licenses
- Internal medicine, ArizonaPrimary
Internists near Dr. Maestas
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Andrew L. Maestas billed Medicare for 271 services in 2024
CMS data shows 271 Medicare services from Dr. Maestas across 2 procedure codes in 2024, all of them office visits, for 15 Medicare patients. Medicare paid $30,340 for them. Every service was in an office.
Dr. Maestas' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4102024: 27134%
Dr. Maestas compared with the Arizona median for internists, 2024
- Dr. Maestas
- Arizona median
- Medicare services
- 271vs 47643% below
- Medicare patients
- 15vs 20593% below
- Part D claims
- 282vs 2608% above
Medians across 2,300 internists in Arizona with Dmand AI profiles that report each measure.
Dr. Maestas' most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Maestas?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Maestas and other internists in Arizona.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Andrew L. Maestas treated 15 Medicare patients in 2024, average age 76
CMS counts 15 Medicare patients who saw Dr. Maestas in 2024. 75% of them have high blood pressure, and 73% have arthritis. Their average risk score is 1.13, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Maestas' median patient age at 73, with 39% women.
Chronic conditions among Dr. Maestas' Medicare patients, 2024
- High blood pressure75%
- Arthritis73%
Share of Medicare patients with each condition. A patient can have several.
Dr. Maestas' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women39%
- Men61%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Andrew L. Maestas wrote 432 Medicare Part D claims in 2024
In 2024, Dr. Maestas wrote 432 Medicare Part D claims for 25 patients. 84% of them were for generic drugs. CMS names the drug for 282 of them, across 15 drugs with 11 or more claims each, at $8,195 in total drug cost. In 2023, CMS named 395 claims across 18 drugs.
Dr. Maestas' Part D claims by kind of drug, 2024
- Generic365 claims84%
- Brand-name55 claims13%
- Other12 claims3%
Dr. Maestas' most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Maestas' Part D claims, 2024
- Opioids10%45 of 432 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 3952024: 28229%
Drugs named by CMS: 15 in 2024, 18 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Andrew L. Maestas takes part in Medicare
Dr. Maestas accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Andrew L. Maestas graduated from University of Wisconsin School of Medicine
Dr. Maestas graduated from University of Wisconsin School of Medicine in 1982.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Andrew L. Maestas's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Andrew L. Maestas
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Andrew L. Maestas' NPI number?
Dr. Andrew L. Maestas' NPI number is 1659563773. It was assigned on August 13, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Andrew L. Maestas?
Dr. Andrew L. Maestas is an internist in Winslow, Arizona. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Andrew L. Maestas practice?
Dr. Maestas practices at 1501 North Williamson Avenue, Winslow, AZ 86047. Dr. Maestas' primary practice is Little Colorado Medical Center in Winslow, Arizona, part of Little Colorado Medical Center. Dmand AI also links Dr. Maestas to 1 physician office and 1 government or correctional health site.
What is Dr. Andrew L. Maestas' office phone number?
The practice phone on file for Dr. Maestas is (928) 289-4691.
What is Dr. Andrew L. Maestas' medical license number?
Dr. Maestas holds Arizona license 21878.
Which hospitals is Dr. Andrew L. Maestas affiliated with?
Dr. Maestas practices at Little Colorado Medical Center in Winslow, Arizona.
Does Dr. Andrew L. Maestas accept Medicare?
Yes. CMS data shows Dr. Maestas billed Medicare for 271 services in 2024, and Dr. Maestas accepts Medicare assignment.
How many Medicare patients does Dr. Andrew L. Maestas see?
CMS counts 15 Medicare patients who saw Dr. Maestas in 2024, with an average age of 76.
What services does Dr. Andrew L. Maestas bill to Medicare?
In 2024, Dr. Maestas' most billed Medicare services were office visit, established patient (99215) and office visit, established patient (99214).
Where did Dr. Andrew L. Maestas go to medical school?
Dr. Maestas graduated from University of Wisconsin School of Medicine in 1982.
What drugs does Dr. Andrew L. Maestas prescribe most?
In 2024 Medicare Part D data, Dr. Maestas' most prescribed drugs by claims were Hydrochlorothiazide, Hydrocodone-Acetaminophen and Lantus.
How long has Dr. Andrew L. Maestas been practicing?
Dr. Maestas graduated from medical school in 1982, 44 years ago.
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